[PowerPC][NFC][MachinePipeliner] Add some regression testcases

Exposed by refactoring in https://reviews.llvm.org/D64665.

llvm-svn: 367732

llvm/test/CodeGen/PowerPC/sms-cpy-1.ll

@@ -0,0 +1,105 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
+; RUN:       -mcpu=pwr9 --ppc-enable-pipeliner 2>&1 | FileCheck %s
+
+@.str.28 = external unnamed_addr constant [69 x i8], align 1
+
+define void @print_res() unnamed_addr {
+; CHECK-LABEL: print_res:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    mflr 0
+; CHECK-NEXT:    std 0, 16(1)
+; CHECK-NEXT:    stdu 1, -128(1)
+; CHECK-NEXT:    .cfi_def_cfa_offset 128
+; CHECK-NEXT:    .cfi_offset lr, 16
+; CHECK-NEXT:    lwz 3, 0(3)
+; CHECK-NEXT:    addi 3, 3, -1
+; CHECK-NEXT:    clrldi 4, 3, 32
+; CHECK-NEXT:    cmplwi 0, 3, 1
+; CHECK-NEXT:    li 3, 1
+; CHECK-NEXT:    isel 3, 4, 3, 1
+; CHECK-NEXT:    li 4, 2
+; CHECK-NEXT:    addi 3, 3, -1
+; CHECK-NEXT:    cmpldi 3, 2
+; CHECK-NEXT:    isel 3, 3, 4, 0
+; CHECK-NEXT:    li 4, 0
+; CHECK-NEXT:    addi 3, 3, 1
+; CHECK-NEXT:    li 5, 0
+; CHECK-NEXT:    li 7, -1
+; CHECK-NEXT:    mtctr 3
+; CHECK-NEXT:    lbz 5, 0(5)
+; CHECK-NEXT:    li 3, 1
+; CHECK-NEXT:    bdz .LBB0_4
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    xori 5, 5, 84
+; CHECK-NEXT:    cntlzw 5, 5
+; CHECK-NEXT:    srwi 6, 5, 5
+; CHECK-NEXT:    clrldi 5, 7, 32
+; CHECK-NEXT:    addi 7, 7, -1
+; CHECK-NEXT:    lbz 5, 0(5)
+; CHECK-NEXT:    addi 3, 3, 1
+; CHECK-NEXT:    bdz .LBB0_3
+; CHECK-NEXT:    .p2align 4
+; CHECK-NEXT:  .LBB0_2: #
+; CHECK-NEXT:    xori 5, 5, 84
+; CHECK-NEXT:    clrldi 8, 7, 32
+; CHECK-NEXT:    add 4, 4, 6
+; CHECK-NEXT:    cntlzw 6, 5
+; CHECK-NEXT:    lbz 5, 0(8)
+; CHECK-NEXT:    addi 7, 7, -1
+; CHECK-NEXT:    addi 3, 3, 1
+; CHECK-NEXT:    srwi 6, 6, 5
+; CHECK-NEXT:    bdnz .LBB0_2
+; CHECK-NEXT:  .LBB0_3:
+; CHECK-NEXT:    add 4, 4, 6
+; CHECK-NEXT:  .LBB0_4:
+; CHECK-NEXT:    xori 5, 5, 84
+; CHECK-NEXT:    cntlzw 5, 5
+; CHECK-NEXT:    clrldi 3, 3, 32
+; CHECK-NEXT:    std 3, 104(1)
+; CHECK-NEXT:    addis 3, 2, .LC0@toc@ha
+; CHECK-NEXT:    ld 3, .LC0@toc@l(3)
+; CHECK-NEXT:    li 7, 0
+; CHECK-NEXT:    li 8, 3
+; CHECK-NEXT:    srwi 5, 5, 5
+; CHECK-NEXT:    add 4, 4, 5
+; CHECK-NEXT:    li 5, 0
+; CHECK-NEXT:    std 5, 120(1)
+; CHECK-NEXT:    li 5, 3
+; CHECK-NEXT:    std 5, 96(1)
+; CHECK-NEXT:    clrldi 6, 4, 32
+; CHECK-NEXT:    li 4, 3
+; CHECK-NEXT:    li 5, 0
+; CHECK-NEXT:    li 10, 0
+; CHECK-NEXT:    bl printf
+; CHECK-NEXT:    nop
+  %1 = load i32, i32* undef, align 4
+  %2 = add i32 %1, -1
+  %3 = zext i32 %2 to i64
+  %4 = zext i32 3 to i64
+  br label %5
+
+5:                                                ; preds = %5, %0
+  %6 = phi i64 [ %16, %5 ], [ 0, %0 ]
+  %7 = phi i32 [ %15, %5 ], [ 0, %0 ]
+  %8 = trunc i64 %6 to i32
+  %9 = sub i32 0, %8
+  %10 = zext i32 %9 to i64
+  %11 = getelementptr inbounds i8, i8* null, i64 %10
+  %12 = load i8, i8* %11, align 1
+  %13 = icmp eq i8 %12, 84
+  %14 = zext i1 %13 to i32
+  %15 = add i32 %7, %14
+  %16 = add nuw nsw i64 %6, 1
+  %17 = icmp ult i64 %16, %3
+  %18 = icmp ult i64 %16, %4
+  %19 = and i1 %18, %17
+  br i1 %19, label %5, label %20
+
+20:                                               ; preds = %5
+  %21 = trunc i64 %16 to i32
+  call void (i8*, ...) @printf(i8* getelementptr inbounds ([69 x i8], [69 x i8]* @.str.28, i64 0, i64 0), i32 zeroext 3, i32 zeroext undef, i32 zeroext %15, i32 zeroext undef, i32 zeroext 3, i8* undef, i32 zeroext undef, i32 zeroext 3, i32 zeroext %21, i8* undef, i32 zeroext undef) #1
+  unreachable
+}
+
+declare void @printf(i8*, ...) local_unnamed_addr #0

llvm/test/CodeGen/PowerPC/sms-phi-1.ll

@@ -0,0 +1,67 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
+; RUN:       -mcpu=pwr9 --ppc-enable-pipeliner 2>&1 | FileCheck %s
+
+define void @main() local_unnamed_addr #0 {
+; CHECK-LABEL: main:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    mflr 0
+; CHECK-NEXT:    .cfi_def_cfa_offset 48
+; CHECK-NEXT:    .cfi_offset lr, 16
+; CHECK-NEXT:    .cfi_offset r30, -16
+; CHECK-NEXT:    std 30, -16(1) # 8-byte Folded Spill
+; CHECK-NEXT:    std 0, 16(1)
+; CHECK-NEXT:    stdu 1, -48(1)
+; CHECK-NEXT:    bl strtol
+; CHECK-NEXT:    nop
+; CHECK-NEXT:    mr 30, 3
+; CHECK-NEXT:    bl calloc
+; CHECK-NEXT:    nop
+; CHECK-NEXT:    clrldi 4, 30, 32
+; CHECK-NEXT:    li 5, 0
+; CHECK-NEXT:    addi 3, 3, -4
+; CHECK-NEXT:    mtctr 4
+; CHECK-NEXT:    mullw 4, 5, 5
+; CHECK-NEXT:    li 6, 1
+; CHECK-NEXT:    bdz .LBB0_3
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    stwu 4, 4(3)
+; CHECK-NEXT:    mullw 4, 6, 6
+; CHECK-NEXT:    addi 5, 6, 1
+; CHECK-NEXT:    bdz .LBB0_3
+; CHECK-NEXT:    .p2align 4
+; CHECK-NEXT:  .LBB0_2: #
+; CHECK-NEXT:    stwu 4, 4(3)
+; CHECK-NEXT:    mullw 4, 5, 5
+; CHECK-NEXT:    addi 5, 5, 1
+; CHECK-NEXT:    bdnz .LBB0_2
+; CHECK-NEXT:  .LBB0_3:
+; CHECK-NEXT:    stwu 4, 4(3)
+; CHECK-NEXT:    addi 1, 1, 48
+; CHECK-NEXT:    ld 0, 16(1)
+; CHECK-NEXT:    mtlr 0
+; CHECK-NEXT:    ld 30, -16(1) # 8-byte Folded Reload
+; CHECK-NEXT:    blr
+  %1 = tail call i64 @strtol()
+  %2 = trunc i64 %1 to i32
+  %3 = tail call noalias i8* @calloc()
+  %4 = bitcast i8* %3 to i32*
+  %5 = zext i32 %2 to i64
+  br label %6
+
+6:                                                ; preds = %6, %0
+  %7 = phi i64 [ %11, %6 ], [ 0, %0 ]
+  %8 = trunc i64 %7 to i32
+  %9 = mul nsw i32 %8, %8
+  %10 = getelementptr inbounds i32, i32* %4, i64 %7
+  store i32 %9, i32* %10, align 4
+  %11 = add nuw nsw i64 %7, 1
+  %12 = icmp eq i64 %11, %5
+  br i1 %12, label %13, label %6
+
+13:                                               ; preds = %6
+  ret void
+}
+
+declare i8* @calloc() local_unnamed_addr
+declare i64 @strtol() local_unnamed_addr

llvm/test/CodeGen/PowerPC/sms-phi-2.ll

@@ -0,0 +1,69 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
+; RUN:       -mcpu=pwr9 --ppc-enable-pipeliner 2>&1 | FileCheck %s
+
+define void @phi2(i32, i32, i8*) local_unnamed_addr {
+; CHECK-LABEL: phi2:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    divw 8, 3, 4
+; CHECK-NEXT:    li 5, 55
+; CHECK-NEXT:    li 6, 48
+; CHECK-NEXT:    mtctr 3
+; CHECK-NEXT:    bdz .LBB0_4
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    divw 9, 8, 4
+; CHECK-NEXT:    mullw 7, 8, 4
+; CHECK-NEXT:    subf 3, 7, 3
+; CHECK-NEXT:    cmplwi 3, 10
+; CHECK-NEXT:    isel 7, 6, 5, 0
+; CHECK-NEXT:    add 3, 7, 3
+; CHECK-NEXT:    stbu 3, -1(7)
+; CHECK-NEXT:    mr 3, 8
+; CHECK-NEXT:    bdz .LBB0_3
+; CHECK-NEXT:    .p2align 4
+; CHECK-NEXT:  .LBB0_2: #
+; CHECK-NEXT:    mr 3, 9
+; CHECK-NEXT:    mullw 9, 9, 4
+; CHECK-NEXT:    divw 10, 3, 4
+; CHECK-NEXT:    subf 8, 9, 8
+; CHECK-NEXT:    cmplwi 8, 10
+; CHECK-NEXT:    isel 9, 6, 5, 0
+; CHECK-NEXT:    add 8, 9, 8
+; CHECK-NEXT:    mr 9, 10
+; CHECK-NEXT:    stbu 8, -1(7)
+; CHECK-NEXT:    mr 8, 3
+; CHECK-NEXT:    bdnz .LBB0_2
+; CHECK-NEXT:  .LBB0_3:
+; CHECK-NEXT:    mr 8, 9
+; CHECK-NEXT:    b .LBB0_5
+; CHECK-NEXT:  .LBB0_4:
+; CHECK-NEXT:    # implicit-def: $x7
+; CHECK-NEXT:  .LBB0_5:
+; CHECK-NEXT:    mullw 4, 8, 4
+; CHECK-NEXT:    subf 3, 4, 3
+; CHECK-NEXT:    cmplwi 3, 10
+; CHECK-NEXT:    isel 4, 6, 5, 0
+; CHECK-NEXT:    add 3, 4, 3
+; CHECK-NEXT:    stbu 3, -1(7)
+; CHECK-NEXT:    blr
+  br label %4
+
+4:                                                ; preds = %4, %3
+  %5 = phi i64 [ %7, %4 ], [ undef, %3 ]
+  %6 = phi i32 [ %8, %4 ], [ %0, %3 ]
+  %7 = add nsw i64 %5, -1
+  %8 = sdiv i32 %6, %1
+  %9 = mul nsw i32 %8, %1
+  %10 = sub nsw i32 %6, %9
+  %11 = icmp ult i32 %10, 10
+  %12 = trunc i32 %10 to i8
+  %13 = select i1 %11, i8 48, i8 55
+  %14 = add i8 %13, %12
+  %15 = getelementptr inbounds i8, i8* %2, i64 %7
+  store i8 %14, i8* %15, align 1
+  %16 = icmp sgt i64 %5, 1
+  br i1 %16, label %4, label %17
+
+17:                                               ; preds = %4
+  ret void
+}

llvm/test/CodeGen/PowerPC/sms-phi-3.ll

@@ -0,0 +1,89 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
+; RUN:       -mcpu=pwr9 --ppc-enable-pipeliner 2>&1 | FileCheck %s
+
+%0 = type { double, double, double, i32, i32 }
+declare i8* @malloc() local_unnamed_addr
+
+define void @phi3(i32*) local_unnamed_addr {
+; CHECK-LABEL: phi3:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    mflr 0
+; CHECK-NEXT:    .cfi_def_cfa_offset 64
+; CHECK-NEXT:    .cfi_offset lr, 16
+; CHECK-NEXT:    .cfi_offset r29, -24
+; CHECK-NEXT:    .cfi_offset r30, -16
+; CHECK-NEXT:    std 29, -24(1) # 8-byte Folded Spill
+; CHECK-NEXT:    std 30, -16(1) # 8-byte Folded Spill
+; CHECK-NEXT:    std 0, 16(1)
+; CHECK-NEXT:    stdu 1, -64(1)
+; CHECK-NEXT:    mr 30, 3
+; CHECK-NEXT:    bl malloc
+; CHECK-NEXT:    nop
+; CHECK-NEXT:    mr 29, 3
+; CHECK-NEXT:    bl malloc
+; CHECK-NEXT:    nop
+; CHECK-NEXT:    addi 7, 30, -4
+; CHECK-NEXT:    mtctr 3
+; CHECK-NEXT:    lwzu 8, 4(7)
+; CHECK-NEXT:    addi 4, 29, -8
+; CHECK-NEXT:    li 5, 0
+; CHECK-NEXT:    bdz .LBB0_5
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    extswsli 6, 5, 5
+; CHECK-NEXT:    add 5, 8, 5
+; CHECK-NEXT:    lwzu 8, 4(7)
+; CHECK-NEXT:    bdz .LBB0_4
+; CHECK-NEXT:  # %bb.2:
+; CHECK-NEXT:    add 6, 3, 6
+; CHECK-NEXT:    stdu 6, 8(4)
+; CHECK-NEXT:    extswsli 6, 5, 5
+; CHECK-NEXT:    add 5, 8, 5
+; CHECK-NEXT:    lwzu 8, 4(7)
+; CHECK-NEXT:    bdz .LBB0_4
+; CHECK-NEXT:    .p2align 5
+; CHECK-NEXT:  .LBB0_3: #
+; CHECK-NEXT:    add 9, 3, 6
+; CHECK-NEXT:    extswsli 6, 5, 5
+; CHECK-NEXT:    add 5, 8, 5
+; CHECK-NEXT:    lwzu 8, 4(7)
+; CHECK-NEXT:    stdu 9, 8(4)
+; CHECK-NEXT:    bdnz .LBB0_3
+; CHECK-NEXT:  .LBB0_4:
+; CHECK-NEXT:    add 6, 3, 6
+; CHECK-NEXT:    stdu 6, 8(4)
+; CHECK-NEXT:  .LBB0_5:
+; CHECK-NEXT:    extswsli 5, 5, 5
+; CHECK-NEXT:    add 3, 3, 5
+; CHECK-NEXT:    stdu 3, 8(4)
+; CHECK-NEXT:    addi 1, 1, 64
+; CHECK-NEXT:    ld 0, 16(1)
+; CHECK-NEXT:    mtlr 0
+; CHECK-NEXT:    ld 30, -16(1) # 8-byte Folded Reload
+; CHECK-NEXT:    ld 29, -24(1) # 8-byte Folded Reload
+; CHECK-NEXT:    blr
+  %2 = tail call noalias i8* @malloc()
+  %3 = bitcast i8* %2 to %0**
+  %4 = tail call noalias i8* @malloc()
+  %5 = bitcast i8* %4 to %0*
+  br label %6
+
+6:                                                ; preds = %6, %1
+  %7 = phi i64 [ %16, %6 ], [ 0, %1 ]
+  %8 = phi i32 [ %15, %6 ], [ 0, %1 ]
+  %9 = phi i64 [ %17, %6 ], [ undef, %1 ]
+  %10 = sext i32 %8 to i64
+  %11 = getelementptr inbounds %0, %0* %5, i64 %10
+  %12 = getelementptr inbounds %0*, %0** %3, i64 %7
+  store %0* %11, %0** %12, align 8
+  %13 = getelementptr inbounds i32, i32* %0, i64 %7
+  %14 = load i32, i32* %13, align 4
+  %15 = add nsw i32 %14, %8
+  %16 = add nuw nsw i64 %7, 1
+  %17 = add i64 %9, -1
+  %18 = icmp eq i64 %17, 0
+  br i1 %18, label %19, label %6
+
+19:                                               ; preds = %6
+  ret void
+}

llvm/test/CodeGen/PowerPC/sms-phi-5.ll

@@ -0,0 +1,56 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs\
+; RUN:       -mcpu=pwr9 --ppc-enable-pipeliner 2>&1 | FileCheck %s
+
+define void @phi5() unnamed_addr {
+; CHECK-LABEL: phi5:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    li 3, 0
+; CHECK-NEXT:    li 4, 1
+; CHECK-NEXT:    slw 3, 4, 3
+; CHECK-NEXT:    andi. 3, 3, 6336
+; CHECK-NEXT:    beqlr 0
+; CHECK-NEXT:  # %bb.2:
+; CHECK-NEXT:    lhz 3, 0(3)
+; CHECK-NEXT:    slwi 3, 3, 15
+; CHECK-NEXT:    clrlwi 3, 3, 31
+; CHECK-NEXT:    rlwinm 4, 3, 31, 17, 31
+; CHECK-NEXT:    or 3, 3, 4
+; CHECK-NEXT:    rlwimi 3, 3, 15, 0, 16
+; CHECK-NEXT:  # %bb.3:
+; CHECK-NEXT:    blr
+  switch i12 undef, label %21 [
+    i12 6, label %1
+    i12 7, label %1
+    i12 12, label %1
+    i12 11, label %1
+  ]
+
+1:                                                ; preds = %0, %0, %0, %0
+  %2 = load i16, i16* undef, align 2
+  br label %3
+
+3:                                                ; preds = %3, %1
+  %4 = phi i16 [ %18, %3 ], [ undef, %1 ]
+  %5 = phi i16 [ %13, %3 ], [ undef, %1 ]
+  %6 = phi i16 [ %11, %3 ], [ undef, %1 ]
+  %7 = phi i16 [ undef, %3 ], [ %2, %1 ]
+  %8 = phi i32 [ %19, %3 ], [ undef, %1 ]
+  %9 = lshr i16 %6, 1
+  %10 = shl i16 %7, 15
+  %11 = or i16 %10, %9
+  %12 = shl i16 %6, 15
+  %13 = or i16 %12, 0
+  %14 = and i16 %4, 1
+  %15 = lshr i16 %4, 1
+  %16 = shl i16 %5, 15
+  %17 = or i16 %14, %15
+  %18 = or i16 %17, %16
+  %19 = add i32 %8, -1
+  %20 = icmp eq i32 %19, 0
+  br i1 %20, label %21, label %3
+
+21:                                               ; preds = %3, %0
+  ret void
+}