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ValueTracking/AMDGPU: handle mbcnt in computeKnownBitsFromOperator#183229

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ruiling merged 5 commits into
llvm:mainfrom
ruiling:return-knownbits-mbcnt
Mar 2, 2026
Merged

ValueTracking/AMDGPU: handle mbcnt in computeKnownBitsFromOperator#183229
ruiling merged 5 commits into
llvm:mainfrom
ruiling:return-knownbits-mbcnt

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@ruiling ruiling commented Feb 25, 2026

This helps canonicalize some address calculation. This would further help immediate folding into memory load instructions in the backend.

The order changes to v_mad_u32_u24 is just because @llvm.amdgcn.mul.u24.i32 was used in codegen prepare after this change. It does not really change anything important.

@ruiling
ValueTracking/AMDGPU: handle mbcnt in computeKnownBitsFromOperator
412382a 
This helps canonicalize some address calculation. This would further
help immediate folding into memory load instructions in the backend.

The order changes to v_mad_u32_u24 is just because @llvm.amdgcn.mul.u24.i32
was used in codegen prepare after this change. It does not really change
anything important.
@ruiling ruiling requested review from arsenm and jayfoad February 25, 2026 03:38
@ruiling ruiling requested a review from nikic as a code owner February 25, 2026 03:38
@llvmbot llvmbot added backend:AMDGPU llvm:instcombine Covers the InstCombine, InstSimplify and AggressiveInstCombine passes llvm:analysis Includes value tracking, cost tables and constant folding llvm:transforms labels Feb 25, 2026
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llvmbot commented Feb 25, 2026 •
edited
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@llvm/pr-subscribers-llvm-analysis
@llvm/pr-subscribers-llvm-transforms

@llvm/pr-subscribers-backend-amdgpu

Author: Ruiling, Song (ruiling)

Changes

This helps canonicalize some address calculation. This would further help immediate folding into memory load instructions in the backend.

The order changes to v_mad_u32_u24 is just because @llvm.amdgcn.mul.u24.i32 was used in codegen prepare after this change. It does not really change anything important.

Patch is 44.10 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/183229.diff

10 Files Affected:

  • (modified) llvm/lib/Analysis/ValueTracking.cpp (+10)
  • (modified) llvm/test/CodeGen/AMDGPU/atomic_optimizations_buffer.ll (+9-9)
  • (modified) llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll (+23-22)
  • (modified) llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll (+19-18)
  • (modified) llvm/test/CodeGen/AMDGPU/atomic_optimizations_pixelshader.ll (+6-6)
  • (modified) llvm/test/CodeGen/AMDGPU/atomic_optimizations_raw_buffer.ll (+9-9)
  • (modified) llvm/test/CodeGen/AMDGPU/atomic_optimizations_struct_buffer.ll (+9-9)
  • (modified) llvm/test/CodeGen/AMDGPU/insert_waitcnt_for_precise_memory.ll (+12-12)
  • (added) llvm/test/Transforms/InstCombine/AMDGPU/canonicalize-add-to-gep.ll (+25)
  • (modified) llvm/test/Transforms/InstCombine/AMDGPU/llvm.amdgcn.wave.shuffle.ll (+7-18)
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 238d6e936382c..422127a250ce1 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -2265,6 +2265,16 @@ static void computeKnownBitsFromOperator(const Operator *I,
           Known.Zero.setBitsFrom(KnownZeroFirstBit);
         break;
       }
+      case Intrinsic::amdgcn_mbcnt_hi:
+      case Intrinsic::amdgcn_mbcnt_lo: {
+        // Wave64 mbcnt_lo returns at most 32 + src1. Otherwise these return at
+        // most 31 + src1.
+        Known.Zero.setBitsFrom(
+            II->getIntrinsicID() == Intrinsic::amdgcn_mbcnt_lo ? 6 : 5);
+        computeKnownBits(I->getOperand(1), Known2, Q, Depth + 1);
+        Known = KnownBits::add(Known, Known2);
+        break;
+      }
       case Intrinsic::vscale: {
         if (!II->getParent() || !II->getFunction())
           break;
diff --git a/llvm/test/CodeGen/AMDGPU/atomic_optimizations_buffer.ll b/llvm/test/CodeGen/AMDGPU/atomic_optimizations_buffer.ll
index d142f4f734890..bbdec31772127 100644
--- a/llvm/test/CodeGen/AMDGPU/atomic_optimizations_buffer.ll
+++ b/llvm/test/CodeGen/AMDGPU/atomic_optimizations_buffer.ll
@@ -40,7 +40,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX6-NEXT:    s_mov_b32 s2, -1
 ; GFX6-NEXT:    s_waitcnt vmcnt(0)
 ; GFX6-NEXT:    v_readfirstlane_b32 s4, v1
-; GFX6-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX6-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX6-NEXT:    s_endpgm
@@ -66,7 +66,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX8-NEXT:    s_waitcnt vmcnt(0)
 ; GFX8-NEXT:    v_readfirstlane_b32 s2, v1
-; GFX8-NEXT:    v_mad_u32_u24 v2, v0, 5, s2
+; GFX8-NEXT:    v_mad_u32_u24 v2, 5, v0, s2
 ; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX8-NEXT:    v_mov_b32_e32 v1, s1
@@ -95,7 +95,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX9-NEXT:    v_mov_b32_e32 v2, 0
-; GFX9-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX9-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
@@ -123,7 +123,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX10W64-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10W64-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX10W64-NEXT:    v_mov_b32_e32 v1, 0
-; GFX10W64-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX10W64-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX10W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10W64-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10W64-NEXT:    s_endpgm
@@ -150,7 +150,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX10W32-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10W32-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX10W32-NEXT:    v_mov_b32_e32 v1, 0
-; GFX10W32-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX10W32-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX10W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10W32-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10W32-NEXT:    s_endpgm
@@ -180,7 +180,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX11W64-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX11W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX11W64-NEXT:    s_delay_alu instid0(VALU_DEP_2)
-; GFX11W64-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX11W64-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX11W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11W64-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX11W64-NEXT:    s_endpgm
@@ -209,7 +209,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX11W32-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX11W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX11W32-NEXT:    s_delay_alu instid0(VALU_DEP_2)
-; GFX11W32-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX11W32-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX11W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11W32-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX11W32-NEXT:    s_endpgm
@@ -241,7 +241,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX12W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX12W64-NEXT:    s_wait_alu depctr_va_sdst(0)
 ; GFX12W64-NEXT:    s_delay_alu instid0(VALU_DEP_2)
-; GFX12W64-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX12W64-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX12W64-NEXT:    s_wait_kmcnt 0x0
 ; GFX12W64-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX12W64-NEXT:    s_endpgm
@@ -271,7 +271,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX12W32-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX12W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX12W32-NEXT:    s_delay_alu instid0(VALU_DEP_2)
-; GFX12W32-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX12W32-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX12W32-NEXT:    s_wait_kmcnt 0x0
 ; GFX12W32-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX12W32-NEXT:    s_endpgm
diff --git a/llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll b/llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll
index 6f9ab39462c43..fbc8b812d96c9 100644
--- a/llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll
+++ b/llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll
@@ -59,7 +59,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX7LESS-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7LESS-NEXT:    s_mov_b32 s2, -1
 ; GFX7LESS-NEXT:    v_readfirstlane_b32 s4, v1
-; GFX7LESS-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX7LESS-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX7LESS-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX7LESS-NEXT:    s_endpgm
 ;
@@ -91,7 +91,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX8-NEXT:    s_mov_b32 s2, -1
-; GFX8-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX8-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX8-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX8-NEXT:    s_endpgm
 ;
@@ -123,7 +123,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX9-NEXT:    s_mov_b32 s2, -1
-; GFX9-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX9-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX9-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX9-NEXT:    s_endpgm
 ;
@@ -156,7 +156,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1064-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1064-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1064-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1064-NEXT:    s_mov_b32 s2, -1
 ; GFX1064-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX1064-NEXT:    s_endpgm
@@ -189,7 +189,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1032-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1032-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1032-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1032-NEXT:    s_mov_b32 s2, -1
 ; GFX1032-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX1032-NEXT:    s_endpgm
@@ -223,7 +223,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1164-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1164-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1164-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1164-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1164-NEXT:    s_mov_b32 s2, -1
 ; GFX1164-NEXT:    buffer_store_b32 v0, off, s[0:3], 0
 ; GFX1164-NEXT:    s_endpgm
@@ -256,7 +256,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1132-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1132-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1132-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1132-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1132-NEXT:    s_mov_b32 s2, -1
 ; GFX1132-NEXT:    buffer_store_b32 v0, off, s[0:3], 0
 ; GFX1132-NEXT:    s_endpgm
@@ -291,7 +291,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1264-NEXT:    s_wait_kmcnt 0x0
 ; GFX1264-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1264-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1264-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1264-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1264-NEXT:    s_mov_b32 s2, -1
 ; GFX1264-NEXT:    buffer_store_b32 v0, off, s[0:3], null
 ; GFX1264-NEXT:    s_endpgm
@@ -323,7 +323,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1232-NEXT:    s_wait_kmcnt 0x0
 ; GFX1232-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1232-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1232-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1232-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1232-NEXT:    s_mov_b32 s2, -1
 ; GFX1232-NEXT:    buffer_store_b32 v0, off, s[0:3], null
 ; GFX1232-NEXT:    s_endpgm
@@ -1630,15 +1630,16 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX8-NEXT:    buffer_wbinvl1_vol
 ; GFX8-NEXT:  .LBB3_2:
 ; GFX8-NEXT:    s_or_b64 exec, exec, s[4:5]
+; GFX8-NEXT:    v_readfirstlane_b32 s4, v1
+; GFX8-NEXT:    v_readfirstlane_b32 s5, v0
+; GFX8-NEXT:    v_mul_u32_u24_e32 v0, 5, v2
+; GFX8-NEXT:    v_mul_hi_u32_u24_e32 v1, 5, v2
+; GFX8-NEXT:    v_mov_b32_e32 v2, s4
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s5, v0
 ; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8-NEXT:    v_readfirstlane_b32 s2, v1
-; GFX8-NEXT:    v_readfirstlane_b32 s3, v0
-; GFX8-NEXT:    v_mov_b32_e32 v0, s3
-; GFX8-NEXT:    v_mov_b32_e32 v1, s2
-; GFX8-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], v2, 5, v[0:1]
 ; GFX8-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX8-NEXT:    s_mov_b32 s2, -1
-; GFX8-NEXT:    s_nop 2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, v2, v1, vcc
 ; GFX8-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
 ; GFX8-NEXT:    s_endpgm
 ;
@@ -1672,7 +1673,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX9-NEXT:    v_readfirstlane_b32 s3, v0
 ; GFX9-NEXT:    v_mov_b32_e32 v0, s3
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s2
-; GFX9-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], v2, 5, v[0:1]
+; GFX9-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], 5, v2, v[0:1]
 ; GFX9-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX9-NEXT:    s_mov_b32 s2, -1
 ; GFX9-NEXT:    s_nop 2
@@ -1709,7 +1710,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1064-NEXT:    v_readfirstlane_b32 s2, v0
-; GFX1064-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], v2, 5, s[2:3]
+; GFX1064-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], 5, v2, s[2:3]
 ; GFX1064-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1064-NEXT:    s_mov_b32 s2, -1
 ; GFX1064-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
@@ -1744,7 +1745,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1032-NEXT:    v_readfirstlane_b32 s2, v0
-; GFX1032-NEXT:    v_mad_u64_u32 v[0:1], s2, v2, 5, s[2:3]
+; GFX1032-NEXT:    v_mad_u64_u32 v[0:1], s2, 5, v2, s[2:3]
 ; GFX1032-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1032-NEXT:    s_mov_b32 s2, -1
 ; GFX1032-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
@@ -1781,7 +1782,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1164-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1164-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1164-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1164-NEXT:    v_mad_u64_u32 v[0:1], null, v2, 5, s[2:3]
+; GFX1164-NEXT:    v_mad_u64_u32 v[0:1], null, 5, v2, s[2:3]
 ; GFX1164-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1164-NEXT:    s_mov_b32 s2, -1
 ; GFX1164-NEXT:    buffer_store_b64 v[0:1], off, s[0:3], 0
@@ -1816,7 +1817,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1132-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1132-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1132-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1132-NEXT:    v_mad_u64_u32 v[0:1], null, v2, 5, s[2:3]
+; GFX1132-NEXT:    v_mad_u64_u32 v[0:1], null, 5, v2, s[2:3]
 ; GFX1132-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1132-NEXT:    s_mov_b32 s2, -1
 ; GFX1132-NEXT:    buffer_store_b64 v[0:1], off, s[0:3], 0
@@ -1854,7 +1855,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1264-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1264-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1264-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1264-NEXT:    v_mad_co_u64_u32 v[0:1], null, v2, 5, s[2:3]
+; GFX1264-NEXT:    v_mad_co_u64_u32 v[0:1], null, 5, v2, s[2:3]
 ; GFX1264-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1264-NEXT:    s_mov_b32 s2, -1
 ; GFX1264-NEXT:    buffer_store_b64 v[0:1], off, s[0:3], null
@@ -1888,7 +1889,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out, ptr addrspace
 ; GFX1232-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1232-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1232-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1232-NEXT:    v_mad_co_u64_u32 v[0:1], null, v2, 5, s[2:3]
+; GFX1232-NEXT:    v_mad_co_u64_u32 v[0:1], null, 5, v2, s[2:3]
 ; GFX1232-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1232-NEXT:    s_mov_b32 s2, -1
 ; GFX1232-NEXT:    buffer_store_b64 v[0:1], off, s[0:3], null
diff --git a/llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll b/llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
index b71577385606a..95908b2b666cf 100644
--- a/llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
+++ b/llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
@@ -45,7 +45,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX7LESS-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7LESS-NEXT:    s_mov_b32 s2, -1
 ; GFX7LESS-NEXT:    v_readfirstlane_b32 s4, v1
-; GFX7LESS-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX7LESS-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX7LESS-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7LESS-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX7LESS-NEXT:    s_endpgm
@@ -73,7 +73,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX8-NEXT:    v_readfirstlane_b32 s4, v1
 ; GFX8-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX8-NEXT:    s_mov_b32 s2, -1
-; GFX8-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX8-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX8-NEXT:    s_endpgm
@@ -100,7 +100,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX9-NEXT:    v_readfirstlane_b32 s4, v1
 ; GFX9-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX9-NEXT:    s_mov_b32 s2, -1
-; GFX9-NEXT:    v_mad_u32_u24 v0, v0, 5, s4
+; GFX9-NEXT:    v_mad_u32_u24 v0, 5, v0, s4
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX9-NEXT:    s_endpgm
@@ -128,7 +128,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX1064-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1064-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1064-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1064-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1064-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1064-NEXT:    s_mov_b32 s2, -1
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064-NEXT:    buffer_store_dword v0, off, s[0:3], 0
@@ -156,7 +156,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX1032-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1032-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1032-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1032-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1032-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1032-NEXT:    s_mov_b32 s2, -1
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032-NEXT:    buffer_store_dword v0, off, s[0:3], 0
@@ -186,7 +186,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX1164-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1164-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1164-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1164-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1164-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1164-NEXT:    s_mov_b32 s2, -1
 ; GFX1164-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164-NEXT:    buffer_store_b32 v0, off, s[0:3], 0
@@ -214,7 +214,7 @@ define amdgpu_kernel void @add_i32_constant(ptr addrspace(1) %out) {
 ; GFX1132-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1132-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1132-NEXT:    s_mov_b32 s3, 0x31016000
-; GFX1132-NEXT:    v_mad_u32_u24 v0, v0, 5, s2
+; GFX1132-NEXT:    v_mad_u32_u24 v0, 5, v0, s2
 ; GFX1132-NEXT:    s_mov_b32 s2, -1
 ; GFX1132-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132-NEXT:    buffer_store_b32 v0, off, s[0:3], 0
@@ -1499,16 +1499,17 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out) {
 ; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8-NEXT:  .LBB4_2:
 ; GFX8-NEXT:    s_or_b64 exec, exec, s[0:1]
-; GFX8-NEXT:    v_readfirstlane_b32 s2, v1
-; GFX8-NEXT:    v_readfirstlane_b32 s3, v0
 ; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
-; GFX8-NEXT:    v_mov_b32_e32 v0, s3
-; GFX8-NEXT:    v_mov_b32_e32 v1, s2
-; GFX8-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], v2, 5, v[0:1]
+; GFX8-NEXT:    v_readfirstlane_b32 s4, v1
+; GFX8-NEXT:    v_readfirstlane_b32 s5, v0
+; GFX8-NEXT:    v_mul_u32_u24_e32 v0, 5, v2
+; GFX8-NEXT:    v_mul_hi_u32_u24_e32 v1, 5, v2
+; GFX8-NEXT:    v_mov_b32_e32 v2, s4
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s5, v0
 ; GFX8-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX8-NEXT:    s_mov_b32 s2, -1
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, v2, v1, vcc
 ; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8-NEXT:    s_nop 1
 ; GFX8-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
 ; GFX8-NEXT:    s_endpgm
 ;
@@ -1535,7 +1536,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out) {
 ; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX9-NEXT:    v_mov_b32_e32 v0, s3
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s2
-; GFX9-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], v2, 5, v[0:1]
+; GFX9-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], 5, v2, v[0:1]
 ; GFX9-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX9-NEXT:    s_mov_b32 s2, -1
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
@@ -1566,7 +1567,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out) {
 ; GFX1064-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1064-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1064-NEXT:    v_readfirstlane_b32 s2, v0
-; GFX1064-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], v2, 5, s[2:3]
+; GFX1064-NEXT:    v_mad_u64_u32 v[0:1], s[2:3], 5, v2, s[2:3]
 ; GFX1064-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1064-NEXT:    s_mov_b32 s2, -1
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
@@ -1595,7 +1596,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out) {
 ; GFX1032-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1032-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1032-NEXT:    v_readfirstlane_b32 s2, v0
-; GFX1032-NEXT:    v_mad_u64_u32 v[0:1], s2, v2, 5, s[2:3]
+; GFX1032-NEXT:    v_mad_u64_u32 v[0:1], s2, 5, v2, s[2:3]
 ; GFX1032-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1032-NEXT:    s_mov_b32 s2, -1
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
@@ -1627,7 +1628,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out) {
 ; GFX1164-NEXT:    v_readfirstlane_b32 s3, v1
 ; GFX1164-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1164-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1164-NEXT:    v_mad_u64_u32 v[0:1], null, v2, 5, s[2:3]
+; GFX1164-NEXT:    v_mad_u64_u32 v[0:1], null, 5, v2, s[2:3]
 ; GFX1164-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX1164-NEXT:    s_mov_b32 s2, -1
 ; GFX1164-NEXT:    s_waitcnt lgkmcnt(0)
@@ -1658,7 +1659,7 @@ define amdgpu_kernel void @add_i64_constant(ptr addrspace(1) %out) {
 ; G...
[truncated]

@ruiling ruiling mentioned this pull request Feb 25, 2026
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ruiling
ruiling commented Feb 25, 2026
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Comment thread llvm/test/Transforms/InstCombine/AMDGPU/llvm.amdgcn.wave.shuffle.ll
; CHECK-W64-NEXT: [[MASKED:%.*]] = and i32 [[TID1]], 65280
; CHECK-W64-NEXT: [[OR_RES:%.*]] = or disjoint i32 [[MASKED]], 55
; CHECK-W64-NEXT: [[RES:%.*]] = tail call i32 @llvm.amdgcn.wave.shuffle.i32(i32 [[VAL]], i32 [[OR_RES]])
; CHECK-W64-NEXT: [[RES:%.*]] = tail call i32 @llvm.amdgcn.wave.shuffle.i32(i32 [[VAL]], i32 55)
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The test check changes seem reasonable. The and with 65280 masked off the bits from mbcnt. so only the bits of the 55 was kept.

arsenm
arsenm reviewed Feb 25, 2026
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Comment thread llvm/test/Transforms/InstCombine/AMDGPU/canonicalize-add-to-gep.ll
jayfoad
jayfoad reviewed Feb 25, 2026
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Comment thread llvm/test/CodeGen/AMDGPU/atomic_optimizations_global_pointer.ll
Comment on lines +1633 to +1638
; GFX8-NEXT: v_readfirstlane_b32 s4, v1
; GFX8-NEXT: v_readfirstlane_b32 s5, v0
; GFX8-NEXT: v_mul_u32_u24_e32 v0, 5, v2
; GFX8-NEXT: v_mul_hi_u32_u24_e32 v1, 5, v2
; GFX8-NEXT: v_mov_b32_e32 v2, s4
; GFX8-NEXT: v_add_u32_e32 v0, vcc, s5, v0
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Is this code faster because it is using _u24 instructions, even though it is more instructions?

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I am not sure about this. but looks like the issue is very specific to gfx8. newer hardware all work well. I think v_mad_u64 are not as fast as 32bit version on gfx8.

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jayfoad commented Feb 25, 2026

This helps canonicalize some address calculation. This would further help immediate folding into memory load instructions in the backend.

Are there any tests that show an improvement from this?

@ruiling
Address review comment:
5d3a894 
add a more direct test.
test wave32/64.
@ruiling ruiling mentioned this pull request Feb 26, 2026
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ruiling commented Feb 26, 2026

Are there any tests that show an improvement from this?

I agree it would be better we still have a test to show the benefit. I have changed #178607 to cover this. The test check of global_load_scale_add_foldable_knownbits will be updated after this change because immediate offset will be folded into global_load. Do you think it is ok to submit that PR now so we can see the benefit in this PR?

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github-actions Bot commented Feb 26, 2026 •
edited
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🐧 Linux x64 Test Results

  • 191280 tests passed
  • 4969 tests skipped

✅ The build succeeded and all tests passed.

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github-actions Bot commented Feb 26, 2026 •
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🪟 Windows x64 Test Results

  • 131531 tests passed
  • 2956 tests skipped

✅ The build succeeded and all tests passed.

arsenm
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Comment thread llvm/test/Transforms/InstCombine/AMDGPU/canonicalize-add-to-gep.ll Outdated
@@ -0,0 +1,38 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -mtriple=amdgcn-- -mattr=+wavefrontsize32 -passes=instcombine -S < %s | FileCheck --check-prefixes=WAVE32,CHECK %s
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You need to reorder the check prefixes so that CHECK is first

arsenm
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Comment thread llvm/test/Transforms/InstCombine/AMDGPU/mbcnt.ll
ruiling added a commit that referenced this pull request Feb 27, 2026
@ruiling
[AMDGPU] Pre-Commit tests for handle mbcnt in computeKnownBitsFromOpe…
d149830 
…rator (#178607)

For PR #183229
ruiling
ruiling commented Feb 27, 2026
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Comment thread llvm/test/CodeGen/AMDGPU/load-saddr-offset-imm.ll Outdated
; RUN: opt -passes=instcombine < %s | llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1250 < %s | FileCheck -check-prefixes=GFX1250,GFX1250-GISEL %s
; RUN: opt -passes=instcombine < %s | llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1200 | FileCheck -check-prefixes=GFX12,GFX12-SDAG %s
; RUN: opt -passes=instcombine < %s | llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1250 | FileCheck -check-prefixes=GFX1250,GFX1250-SDAG %s
; RUN: opt -passes=instcombine < %s | llc -global-isel -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1200 | FileCheck -check-prefixes=GFX12,GFX12-GISEL %s
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Sorry that I forgot to remove the < %s for the llc input, which makes it does not work exactly as we want. It still acts as a useful end-to-end regression test.

@ruiling ruiling merged commit 686987a into llvm:main Mar 2, 2026
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llvm-ci commented Mar 2, 2026

LLVM Buildbot has detected a new failure on builder sanitizer-x86_64-linux-android running on sanitizer-buildbot-android while building llvm at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/186/builds/16697

Here is the relevant piece of the build log for the reference 
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
[       OK ] AddressSanitizer.AtoiAndFriendsOOBTest (2243 ms)
[ RUN      ] AddressSanitizer.HasFeatureAddressSanitizerTest
[       OK ] AddressSanitizer.HasFeatureAddressSanitizerTest (0 ms)
[ RUN      ] AddressSanitizer.CallocReturnsZeroMem
[       OK ] AddressSanitizer.CallocReturnsZeroMem (12 ms)
[ DISABLED ] AddressSanitizer.DISABLED_TSDTest
[ RUN      ] AddressSanitizer.IgnoreTest
[       OK ] AddressSanitizer.IgnoreTest (0 ms)
[ RUN      ] AddressSanitizer.SignalTest
[       OK ] AddressSanitizer.SignalTest (190 ms)
[ RUN      ] AddressSanitizer.ReallocTest
[       OK ] AddressSanitizer.ReallocTest (31 ms)
[ RUN      ] AddressSanitizer.WrongFreeTest
[       OK ] AddressSanitizer.WrongFreeTest (118 ms)
[ RUN      ] AddressSanitizer.LongJmpTest
[       OK ] AddressSanitizer.LongJmpTest (0 ms)
[ RUN      ] AddressSanitizer.ThreadStackReuseTest
[       OK ] AddressSanitizer.ThreadStackReuseTest (13 ms)
[ DISABLED ] AddressSanitizer.DISABLED_MemIntrinsicUnalignedAccessTest
[ DISABLED ] AddressSanitizer.DISABLED_LargeFunctionSymbolizeTest
[ DISABLED ] AddressSanitizer.DISABLED_MallocFreeUnwindAndSymbolizeTest
[ RUN      ] AddressSanitizer.UseThenFreeThenUseTest
[       OK ] AddressSanitizer.UseThenFreeThenUseTest (128 ms)
[ RUN      ] AddressSanitizer.FileNameInGlobalReportTest
[       OK ] AddressSanitizer.FileNameInGlobalReportTest (111 ms)
[ DISABLED ] AddressSanitizer.DISABLED_StressStackReuseAndExceptionsTest
[ RUN      ] AddressSanitizer.MlockTest
[       OK ] AddressSanitizer.MlockTest (0 ms)
[ DISABLED ] AddressSanitizer.DISABLED_DemoThreadedTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoStackTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoThreadStackTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFLowIn
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFLowLeft
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFLowRight
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFHigh
[ DISABLED ] AddressSanitizer.DISABLED_DemoOOM
[ DISABLED ] AddressSanitizer.DISABLED_DemoDoubleFreeTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoNullDerefTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoFunctionStaticTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoTooMuchMemoryTest
[ RUN      ] AddressSanitizer.LongDoubleNegativeTest
[       OK ] AddressSanitizer.LongDoubleNegativeTest (0 ms)
[----------] 19 tests from AddressSanitizer (27473 ms total)

[----------] Global test environment tear-down
[==========] 22 tests from 2 test suites ran. (27486 ms total)
[  PASSED  ] 22 tests.

  YOU HAVE 1 DISABLED TEST

Step 34 (run instrumented asan tests [aarch64/bluejay-userdebug/TQ3A.230805.001]) failure: run instrumented asan tests [aarch64/bluejay-userdebug/TQ3A.230805.001] (failure)
...
[ RUN      ] AddressSanitizer.HasFeatureAddressSanitizerTest
[       OK ] AddressSanitizer.HasFeatureAddressSanitizerTest (0 ms)
[ RUN      ] AddressSanitizer.CallocReturnsZeroMem
[       OK ] AddressSanitizer.CallocReturnsZeroMem (12 ms)
[ DISABLED ] AddressSanitizer.DISABLED_TSDTest
[ RUN      ] AddressSanitizer.IgnoreTest
[       OK ] AddressSanitizer.IgnoreTest (0 ms)
[ RUN      ] AddressSanitizer.SignalTest
[       OK ] AddressSanitizer.SignalTest (190 ms)
[ RUN      ] AddressSanitizer.ReallocTest
[       OK ] AddressSanitizer.ReallocTest (31 ms)
[ RUN      ] AddressSanitizer.WrongFreeTest
[       OK ] AddressSanitizer.WrongFreeTest (118 ms)
[ RUN      ] AddressSanitizer.LongJmpTest
[       OK ] AddressSanitizer.LongJmpTest (0 ms)
[ RUN      ] AddressSanitizer.ThreadStackReuseTest
[       OK ] AddressSanitizer.ThreadStackReuseTest (13 ms)
[ DISABLED ] AddressSanitizer.DISABLED_MemIntrinsicUnalignedAccessTest
[ DISABLED ] AddressSanitizer.DISABLED_LargeFunctionSymbolizeTest
[ DISABLED ] AddressSanitizer.DISABLED_MallocFreeUnwindAndSymbolizeTest
[ RUN      ] AddressSanitizer.UseThenFreeThenUseTest
[       OK ] AddressSanitizer.UseThenFreeThenUseTest (128 ms)
[ RUN      ] AddressSanitizer.FileNameInGlobalReportTest
[       OK ] AddressSanitizer.FileNameInGlobalReportTest (111 ms)
[ DISABLED ] AddressSanitizer.DISABLED_StressStackReuseAndExceptionsTest
[ RUN      ] AddressSanitizer.MlockTest
[       OK ] AddressSanitizer.MlockTest (0 ms)
[ DISABLED ] AddressSanitizer.DISABLED_DemoThreadedTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoStackTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoThreadStackTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFLowIn
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFLowLeft
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFLowRight
[ DISABLED ] AddressSanitizer.DISABLED_DemoUAFHigh
[ DISABLED ] AddressSanitizer.DISABLED_DemoOOM
[ DISABLED ] AddressSanitizer.DISABLED_DemoDoubleFreeTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoNullDerefTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoFunctionStaticTest
[ DISABLED ] AddressSanitizer.DISABLED_DemoTooMuchMemoryTest
[ RUN      ] AddressSanitizer.LongDoubleNegativeTest
[       OK ] AddressSanitizer.LongDoubleNegativeTest (0 ms)
[----------] 19 tests from AddressSanitizer (27473 ms total)

[----------] Global test environment tear-down
[==========] 22 tests from 2 test suites ran. (27486 ms total)
[  PASSED  ] 22 tests.

  YOU HAVE 1 DISABLED TEST
program finished with exit code 0
elapsedTime=2192.337818

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llvm-ci commented Mar 2, 2026

LLVM Buildbot has detected a new failure on builder sanitizer-ppc64le-linux running on ppc64le-sanitizer while building llvm at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/17412

Here is the relevant piece of the build log for the reference 
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure) (timed out)
...
PASS: Profile-powerpc64le :: gcc-flag-compatibility.test (2205 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/347/349 (2206 of 2895)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: Linux/signal_name.c (2207 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/76/349 (2208 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/71/349 (2209 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/45/349 (2210 of 2895)
PASS: ThreadSanitizer-Unit :: rtl/./TsanRtlTest-powerpc64le-Test/24/37 (2211 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/38/349 (2212 of 2895)
PASS: ThreadSanitizer-Unit :: rtl/./TsanRtlTest-powerpc64le-Test/31/37 (2213 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/59/349 (2214 of 2895)
FAIL: LeakSanitizer-Standalone-powerpc64le :: TestCases/create_thread_leak.cpp (2215 of 2895)
******************** TEST 'LeakSanitizer-Standalone-powerpc64le :: TestCases/create_thread_leak.cpp' FAILED ********************
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 3
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang  --driver-mode=g++ -O0  -m64 -fno-function-sections  -gline-tables-only -fsanitize=leak -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/../ -pthread /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp
# executed command: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang --driver-mode=g++ -O0 -m64 -fno-function-sections -gline-tables-only -fsanitize=leak -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/../ -pthread /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp
# RUN: at line 4
not  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 1 0 0 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK123
# executed command: not /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 1 0 0
# executed command: FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK123
# RUN: at line 5
not  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 1 0 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# executed command: not /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 1 0
# executed command: FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# RUN: at line 6
not  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 0 1 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# executed command: not /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 0 1
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# `-----------------------------
# error: command failed with exit status: 2

--

********************
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/88/349 (2216 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/276/349 (2217 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/36/349 (2218 of 2895)
PASS: ThreadSanitizer-Unit :: rtl/./TsanRtlTest-powerpc64le-Test/18/37 (2219 of 2895)
PASS: ThreadSanitizer-Unit :: unit/./TsanUnitTest-powerpc64le-Test/0/40 (2220 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/67/349 (2221 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/318/349 (2222 of 2895)
Step 9 (test compiler-rt debug) failure: test compiler-rt debug (failure)
...
PASS: Profile-powerpc64le :: gcc-flag-compatibility.test (2205 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/347/349 (2206 of 2895)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: Linux/signal_name.c (2207 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/76/349 (2208 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/71/349 (2209 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/45/349 (2210 of 2895)
PASS: ThreadSanitizer-Unit :: rtl/./TsanRtlTest-powerpc64le-Test/24/37 (2211 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/38/349 (2212 of 2895)
PASS: ThreadSanitizer-Unit :: rtl/./TsanRtlTest-powerpc64le-Test/31/37 (2213 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/59/349 (2214 of 2895)
FAIL: LeakSanitizer-Standalone-powerpc64le :: TestCases/create_thread_leak.cpp (2215 of 2895)
******************** TEST 'LeakSanitizer-Standalone-powerpc64le :: TestCases/create_thread_leak.cpp' FAILED ********************
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 3
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang  --driver-mode=g++ -O0  -m64 -fno-function-sections  -gline-tables-only -fsanitize=leak -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/../ -pthread /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp
# executed command: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang --driver-mode=g++ -O0 -m64 -fno-function-sections -gline-tables-only -fsanitize=leak -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/../ -pthread /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp
# RUN: at line 4
not  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 1 0 0 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK123
# executed command: not /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 1 0 0
# executed command: FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK123
# RUN: at line 5
not  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 1 0 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# executed command: not /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 1 0
# executed command: FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# RUN: at line 6
not  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 0 1 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# executed command: not /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/lsan/POWERPC64LELsanConfig/TestCases/Output/create_thread_leak.cpp.tmp 10 0 0 1
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/lsan/TestCases/create_thread_leak.cpp --check-prefixes=LEAK,LEAK234
# `-----------------------------
# error: command failed with exit status: 2

--

********************
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/88/349 (2216 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/276/349 (2217 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/36/349 (2218 of 2895)
PASS: ThreadSanitizer-Unit :: rtl/./TsanRtlTest-powerpc64le-Test/18/37 (2219 of 2895)
PASS: ThreadSanitizer-Unit :: unit/./TsanUnitTest-powerpc64le-Test/0/40 (2220 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/67/349 (2221 of 2895)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/318/349 (2222 of 2895)

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llvm-ci commented Mar 2, 2026

LLVM Buildbot has detected a new failure on builder ppc64le-lld-multistage-test running on ppc64le-lld-multistage-test while building llvm at step 7 "test-build-stage1-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/168/builds/18225

Here is the relevant piece of the build log for the reference 
Step 7 (test-build-stage1-unified-tree-check-all) failure: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
...
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld.lld: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/ld.lld
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using lld-link: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/lld-link
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld64.lld: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/ld64.lld
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using wasm-ld: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/wasm-ld
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/utils/lit/tests/lit.cfg:115: warning: Setting a timeout per test not supported. Requires the Python psutil module but it could not be found. Try installing it via pip or via your operating system's package manager.
 Some tests will be skipped and the --timeout command line argument will not work.
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld.lld: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/ld.lld
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using lld-link: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/lld-link
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld64.lld: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/ld64.lld
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using wasm-ld: /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage1/bin/wasm-ld
command timed out: 1200 seconds without output running [b'ninja', b'check-all'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=5622.055156
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90
Step 9 (clean-build/stage2-dir) failure: Delete failed. (failure) (timed out)
Step 10 (clean-install/stage2-dir) failure: Delete failed. (failure) (timed out)
Step 11 (cmake-configure-stage2) failure: cmake (failure) (timed out)
command timed out: 1200 seconds without output running [b'cmake', b'-G', b'Ninja', b'-DLLVM_ENABLE_ASSERTIONS=ON', b'-DLLVM_LIT_ARGS=-svj 256', b'-DCMAKE_C_COMPILER_LAUNCHER=ccache', b'-DCMAKE_CXX_COMPILER_LAUNCHER=ccache', b'-DCMAKE_BUILD_TYPE=Release', b'-DLLVM_BUILD_TESTS=ON', b'-DLLVM_OPTIMIZED_TABLEGEN=ON', b'-DCLANG_BUILD_EXAMPLES=OFF', b'-DLLVM_ENABLE_WERROR=ON', b'-DLLVM_ENABLE_LLD=ON', b'-DCMAKE_INSTALL_PREFIX=../../install/stage2', b'-DLLVM_ENABLE_PROJECTS=llvm;lld;clang', b'-DCMAKE_CXX_COMPILER=/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/install/stage1/bin/clang++', b'-DCMAKE_C_COMPILER=/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/install/stage1/bin/clang', b'../../llvm-project/llvm'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=1200.585206

sahas3 pushed a commit to sahas3/llvm-project that referenced this pull request Mar 4, 2026
@ruiling @sahas3
ValueTracking/AMDGPU: handle mbcnt in computeKnownBitsFromOperator (l…
65484f3 
…lvm#183229)

This helps canonicalize some address calculation. This would further
help immediate folding into memory load instructions in the backend.

The order changes to v_mad_u32_u24 is just because
@llvm.amdgcn.mul.u24.i32 was used in codegen prepare after this change.
It does not really change anything important.
sujianIBM pushed a commit to sujianIBM/llvm-project that referenced this pull request Mar 5, 2026
@ruiling @sujianIBM
[AMDGPU] Pre-Commit tests for handle mbcnt in computeKnownBitsFromOpe…
bd1ef72 
…rator (llvm#178607)

For PR llvm#183229
sujianIBM pushed a commit to sujianIBM/llvm-project that referenced this pull request Mar 5, 2026
@ruiling @sujianIBM
ValueTracking/AMDGPU: handle mbcnt in computeKnownBitsFromOperator (l…
d833026 
…lvm#183229)

This helps canonicalize some address calculation. This would further
help immediate folding into memory load instructions in the backend.

The order changes to v_mad_u32_u24 is just because
@llvm.amdgcn.mul.u24.i32 was used in codegen prepare after this change.
It does not really change anything important.
modularbot pushed a commit to modular/modular that referenced this pull request Mar 7, 2026
@zyx-billy @modularbot
[Integrate] Bump LLVM to c3f0a2c375c26d337a3c86306d6115f36fe685c3
788df78 
Changes:
- Renamed MLIR pass registration functions to include `Pass` suffix
(`registerCanonicalizerPass`, `registerStripDebugInfoPass`, etc.)
following
upstream
[785490e9db54](llvm/llvm-project@785490e)
  ([#183950](llvm/llvm-project#183950))
- Updated `llvm-lldb-exports.patch` for upstream LLDBLog refactoring:
- `InitializeLldbChannel` renamed to
`InitializeLLDBChannel`/`TerminateLLDBChannel`
([d4d18248](llvm/llvm-project@d4d18248fde6))
  - Functions then wrapped in `LLDBLogChannel` class
([45dbce3a](llvm/llvm-project@45dbce3a3a3e))
- Fix `executeFromDriver` to accept non-const `SmallVectorImpl` after
  `MutableArrayRef` stopped accepting const container sources
  ([c88ba88d](llvm/llvm-project@c88ba88da52b))
- Fix MGP dialect tests: add return types to `func.func` declarations
  now that MLIR's `FuncOp` verifier checks `ReturnLike` ops (including
  `mef.output`) against declared return types, following upstream

[b28ec5ad1808](llvm/llvm-project@b28ec5a)
  ([#184612](llvm/llvm-project#184612))
- Fix GCN FileCheck patterns for AMDGPU `@llvm.amdgcn.implicitarg.ptr()`
now emitting `dereferenceable(256)` return attribute, following upstream

[fdc4a982f5d6](llvm/llvm-project@fdc4a982f5d6)
  ([#182206](llvm/llvm-project#182206))
- Update GCN shuffle test FileCheck patterns for LLVM optimizer
improvements:
`and`-mask simplifications (e.g. `and i32 %5, -64` → `and i32 %5, 64`)
and
`add nuw nsw` flag additions, enabled by upstream KnownBits analysis for
  `mbcnt_lo`/`mbcnt_hi` intrinsics in

[686987a540bc](llvm/llvm-project@686987a)
  ([#183229](llvm/llvm-project#183229))
- Fix GEP element type FileCheck patterns: InstCombine now canonicalizes
GEP element types to byte arrays (`float` → `[4 x i8]`, `i64` → `[8 x
i8]`)
- Fix `mo.while` body type mismatch error message: MLIR's
  `RegionBranchOpInterface` (`verifyWithRegions`) now detects yield type
mismatches before `LoopLikeOpInterface`, emitting a different
diagnostic,
  following upstream

[b28ec5ad1808](llvm/llvm-project@b28ec5a)
- Regenerate MLIR Python binding stubs

MODULAR_ORIG_COMMIT_REV_ID: acd27a457aa9115fd91f73d7ba3338365ece3eb4
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@jayfoad jayfoad jayfoad left review comments

@arsenm arsenm arsenm approved these changes

@nikic nikic Awaiting requested review from nikic nikic is a code owner

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backend:AMDGPU llvm:analysis Includes value tracking, cost tables and constant folding llvm:instcombine Covers the InstCombine, InstSimplify and AggressiveInstCombine passes llvm:transforms

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@ruiling @llvmbot @jayfoad @llvm-ci @arsenm