[AArch64] Intrinsics aarch64_{get,set}_fpsr #81867
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Two new intrinsics are introduced to read/write FPSR. They are similar
to the existing intrinsics aarch64_{get,set}_fpcr.
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@llvm/pr-subscribers-backend-aarch64 @llvm/pr-subscribers-llvm-ir Author: Serge Pavlov (spavloff) ChangesTwo new intrinsics are introduced to read/write FPSR. They are similar to the existing intrinsics aarch64_{get,set}_fpcr. Patch is 25.22 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/81867.diff 5 Files Affected:
diff --git a/llvm/include/llvm/IR/IntrinsicsAArch64.td b/llvm/include/llvm/IR/IntrinsicsAArch64.td
index 921e5b95ae03e8..d5ea1ba1a5e332 100644
--- a/llvm/include/llvm/IR/IntrinsicsAArch64.td
+++ b/llvm/include/llvm/IR/IntrinsicsAArch64.td
@@ -703,17 +703,19 @@ def int_aarch64_neon_tbx3 : AdvSIMD_Tbx3_Intrinsic;
def int_aarch64_neon_tbx4 : AdvSIMD_Tbx4_Intrinsic;
let TargetPrefix = "aarch64" in {
- class FPCR_Get_Intrinsic
+ class FPENV_Get_Intrinsic
: DefaultAttrsIntrinsic<[llvm_i64_ty], [], [IntrNoMem, IntrHasSideEffects]>;
- class FPCR_Set_Intrinsic
+ class FPENV_Set_Intrinsic
: DefaultAttrsIntrinsic<[], [llvm_i64_ty], [IntrNoMem, IntrHasSideEffects]>;
class RNDR_Intrinsic
: DefaultAttrsIntrinsic<[llvm_i64_ty, llvm_i1_ty], [], [IntrNoMem, IntrHasSideEffects]>;
}
-// FPCR
-def int_aarch64_get_fpcr : FPCR_Get_Intrinsic;
-def int_aarch64_set_fpcr : FPCR_Set_Intrinsic;
+// FP environment registers.
+def int_aarch64_get_fpcr : FPENV_Get_Intrinsic;
+def int_aarch64_set_fpcr : FPENV_Set_Intrinsic;
+def int_aarch64_get_fpsr : FPENV_Get_Intrinsic;
+def int_aarch64_set_fpsr : FPENV_Set_Intrinsic;
// Armv8.5-A Random number generation intrinsics
def int_aarch64_rndr : RNDR_Intrinsic;
diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.td b/llvm/lib/Target/AArch64/AArch64InstrInfo.td
index 8c2a852850320f..47cff8ec5313fb 100644
--- a/llvm/lib/Target/AArch64/AArch64InstrInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.td
@@ -1805,7 +1805,7 @@ def HWASAN_CHECK_MEMACCESS_SHORTGRANULES : Pseudo<
// The virtual cycle counter register is CNTVCT_EL0.
def : Pat<(readcyclecounter), (MRS 0xdf02)>;
-// FPCR register
+// FPCR and FPSR registers.
let Uses = [FPCR] in
def MRS_FPCR : Pseudo<(outs GPR64:$dst), (ins),
[(set GPR64:$dst, (int_aarch64_get_fpcr))]>,
@@ -1817,6 +1817,17 @@ def MSR_FPCR : Pseudo<(outs), (ins GPR64:$val),
PseudoInstExpansion<(MSR 0xda20, GPR64:$val)>,
Sched<[WriteSys]>;
+let Uses = [FPSR] in
+def MRS_FPSR : Pseudo<(outs GPR64:$dst), (ins),
+ [(set GPR64:$dst, (int_aarch64_get_fpsr))]>,
+ PseudoInstExpansion<(MRS GPR64:$dst, 0xda21)>,
+ Sched<[WriteSys]>;
+let Defs = [FPSR] in
+def MSR_FPSR : Pseudo<(outs), (ins GPR64:$val),
+ [(int_aarch64_set_fpsr i64:$val)]>,
+ PseudoInstExpansion<(MSR 0xda21, GPR64:$val)>,
+ Sched<[WriteSys]>;
+
// Generic system instructions
def SYSxt : SystemXtI<0, "sys">;
def SYSLxt : SystemLXtI<1, "sysl">;
diff --git a/llvm/lib/Target/AArch64/AArch64RegisterInfo.td b/llvm/lib/Target/AArch64/AArch64RegisterInfo.td
index 569944e0e660b7..fef1748021b07c 100644
--- a/llvm/lib/Target/AArch64/AArch64RegisterInfo.td
+++ b/llvm/lib/Target/AArch64/AArch64RegisterInfo.td
@@ -147,6 +147,9 @@ def VG : AArch64Reg<0, "vg">, DwarfRegNum<[46]>;
// Floating-point control register
def FPCR : AArch64Reg<0, "fpcr">;
+// Floating-point status register.
+def FPSR : AArch64Reg<0, "fpsr">;
+
// GPR register classes with the intersections of GPR32/GPR32sp and
// GPR64/GPR64sp for use by the coalescer.
def GPR32common : RegisterClass<"AArch64", [i32], 32, (sequence "W%u", 0, 30)> {
diff --git a/llvm/test/CodeGen/AArch64/arm64-fpenv.ll b/llvm/test/CodeGen/AArch64/arm64-fpenv.ll
new file mode 100644
index 00000000000000..030809caee3394
--- /dev/null
+++ b/llvm/test/CodeGen/AArch64/arm64-fpenv.ll
@@ -0,0 +1,45 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc -mtriple=aarch64 < %s | FileCheck %s
+
+define i64 @get_fpcr() #0 {
+; CHECK-LABEL: get_fpcr:
+; CHECK: // %bb.0:
+; CHECK-NEXT: mrs x0, FPCR
+; CHECK-NEXT: ret
+ %1 = tail call i64 @llvm.aarch64.get.fpcr()
+ ret i64 %1
+}
+
+define void @set_fpcr(i64 %cr) {
+; CHECK-LABEL: set_fpcr:
+; CHECK: // %bb.0:
+; CHECK-NEXT: msr FPCR, x0
+; CHECK-NEXT: ret
+ call void @llvm.aarch64.set.fpcr(i64 %cr)
+ ret void
+}
+
+define i64 @get_fpsr() {
+; CHECK-LABEL: get_fpsr:
+; CHECK: // %bb.0:
+; CHECK-NEXT: mrs x0, FPSR
+; CHECK-NEXT: ret
+ %1 = tail call i64 @llvm.aarch64.get.fpsr()
+ ret i64 %1
+}
+
+define void @set_fpsr(i64 %sr) {
+; CHECK-LABEL: set_fpsr:
+; CHECK: // %bb.0:
+; CHECK-NEXT: msr FPSR, x0
+; CHECK-NEXT: ret
+ call void @llvm.aarch64.set.fpsr(i64 %sr)
+ ret void
+}
+
+declare i64 @llvm.aarch64.get.fpcr()
+declare void @llvm.aarch64.set.fpcr(i64)
+declare i64 @llvm.aarch64.get.fpsr()
+declare void @llvm.aarch64.set.fpsr(i64)
+
+attributes #0 = { nounwind }
diff --git a/llvm/test/CodeGen/AArch64/preserve.ll b/llvm/test/CodeGen/AArch64/preserve.ll
index f95de60fbb24c8..d11a45144a9049 100644
--- a/llvm/test/CodeGen/AArch64/preserve.ll
+++ b/llvm/test/CodeGen/AArch64/preserve.ll
@@ -4,13 +4,13 @@
target triple = "aarch64-unknown-unknown"
declare void @bar1()
define preserve_mostcc void @baz() #0 {
-; CHECK: baz Clobbered Registers: $ffr $fpcr $nzcv $sp $vg $wsp $za $b0 $b1 $b2 $b3 $b4 $b5 $b6 $b7 $b16 $b17 $b18 $b19 $b20 $b21 $b22 $b23 $b24 $b25 $b26 $b27 $b28 $b29 $b30 $b31 $d0 $d1 $d2 $d3 $d4 $d5 $d6 $d7 $d16 $d17 $d18 $d19 $d20 $d21 $d22 $d23 $d24 $d25 $d26 $d27 $d28 $d29 $d30 $d31 $h0 $h1 $h2 $h3 $h4 $h5 $h6 $h7 $h16 $h17 $h18 $h19 $h20 $h21 $h22 $h23 $h24 $h25 $h26 $h27 $h28 $h29 $h30 $h31 $p0 $p1 $p2 $p3 $p4 $p5 $p6 $p7 $p8 $p9 $p10 $p11 $p12 $p13 $p14 $p15 $pn0 $pn1 $pn2 $pn3 $pn4 $pn5 $pn6 $pn7 $pn8 $pn9 $pn10 $pn11 $pn12 $pn13 $pn14 $pn15 $q0 $q1 $q2 $q3 $q4 $q5 $q6 $q7 $q8 $q9 $q10 $q11 $q12 $q13 $q14 $q15 $q16 $q17 $q18 $q19 $q20 $q21 $q22 $q23 $q24 $q25 $q26 $q27 $q28 $q29 $q30 $q31 $s0 $s1 $s2 $s3 $s4 $s5 $s6 $s7 $s16 $s17 $s18 $s19 $s20 $s21 $s22 $s23 $s24 $s25 $s26 $s27 $s28 $s29 $s30 $s31 $w0 $w1 $w2 $w3 $w4 $w5 $w6 $w7 $w8 $w16 $w17 $w18 $x0 $x1 $x2 $x3 $x4 $x5 $x6 $x7 $x8 $x16 $x17 $x18 $z0 $z1 $z2 $z3 $z4 $z5 $z6 $z7 $z8 $z9 $z10 $z11 $z12 $z13 $z14 $z15 $z16 $z17 $z18 $z19 $z20 $z21 $z22 $z23 $z24 $z25 $z26 $z27 $z28 $z29 $z30 $z31 $zab0 $zad0 $zad1 $zad2 $zad3 $zad4 $zad5 $zad6 $zad7 $zah0 $zah1 $zaq0 $zaq1 $zaq2 $zaq3 $zaq4 $zaq5 $zaq6 $zaq7 $zaq8 $zaq9 $zaq10 $zaq11 $zaq12 $zaq13 $zaq14 $zaq15 $zas0 $zas1 $zas2 $zas3 $zt0 $d0_d1 $d1_d2 $d2_d3 $d3_d4 $d4_d5 $d5_d6 $d6_d7 $d7_d8 $d15_d16 $d16_d17 $d17_d18 $d18_d19 $d19_d20 $d20_d21 $d21_d22 $d22_d23 $d23_d24 $d24_d25 $d25_d26 $d26_d27 $d27_d28 $d28_d29 $d29_d30 $d30_d31 $d31_d0 $d0_d1_d2_d3 $d1_d2_d3_d4 $d2_d3_d4_d5 $d3_d4_d5_d6 $d4_d5_d6_d7 $d5_d6_d7_d8 $d6_d7_d8_d9 $d7_d8_d9_d10 $d13_d14_d15_d16 $d14_d15_d16_d17 $d15_d16_d17_d18 $d16_d17_d18_d19 $d17_d18_d19_d20 $d18_d19_d20_d21 $d19_d20_d21_d22 $d20_d21_d22_d23 $d21_d22_d23_d24 $d22_d23_d24_d25 $d23_d24_d25_d26 $d24_d25_d26_d27 $d25_d26_d27_d28 $d26_d27_d28_d29 $d27_d28_d29_d30 $d28_d29_d30_d31 $d29_d30_d31_d0 $d30_d31_d0_d1 $d31_d0_d1_d2 $d0_d1_d2 $d1_d2_d3 $d2_d3_d4 $d3_d4_d5 $d4_d5_d6 $d5_d6_d7 $d6_d7_d8 $d7_d8_d9 $d14_d15_d16 $d15_d16_d17 $d16_d17_d18 $d17_d18_d19 $d18_d19_d20 $d19_d20_d21 $d20_d21_d22 $d21_d22_d23 $d22_d23_d24 $d23_d24_d25 $d24_d25_d26 $d25_d26_d27 $d26_d27_d28 $d27_d28_d29 $d28_d29_d30 $d29_d30_d31 $d30_d31_d0 $d31_d0_d1 $p0_p1 $p1_p2 $p2_p3 $p3_p4 $p4_p5 $p5_p6 $p6_p7 $p7_p8 $p8_p9 $p9_p10 $p10_p11 $p11_p12 $p12_p13 $p13_p14 $p14_p15 $p15_p0 $q0_q1 $q1_q2 $q2_q3 $q3_q4 $q4_q5 $q5_q6 $q6_q7 $q7_q8 $q8_q9 $q9_q10 $q10_q11 $q11_q12 $q12_q13 $q13_q14 $q14_q15 $q15_q16 $q16_q17 $q17_q18 $q18_q19 $q19_q20 $q20_q21 $q21_q22 $q22_q23 $q23_q24 $q24_q25 $q25_q26 $q26_q27 $q27_q28 $q28_q29 $q29_q30 $q30_q31 $q31_q0 $q0_q1_q2_q3 $q1_q2_q3_q4 $q2_q3_q4_q5 $q3_q4_q5_q6 $q4_q5_q6_q7 $q5_q6_q7_q8 $q6_q7_q8_q9 $q7_q8_q9_q10 $q8_q9_q10_q11 $q9_q10_q11_q12 $q10_q11_q12_q13 $q11_q12_q13_q14 $q12_q13_q14_q15 $q13_q14_q15_q16 $q14_q15_q16_q17 $q15_q16_q17_q18 $q16_q17_q18_q19 $q17_q18_q19_q20 $q18_q19_q20_q21 $q19_q20_q21_q22 $q20_q21_q22_q23 $q21_q22_q23_q24 $q22_q23_q24_q25 $q23_q24_q25_q26 $q24_q25_q26_q27 $q25_q26_q27_q28 $q26_q27_q28_q29 $q27_q28_q29_q30 $q28_q29_q30_q31 $q29_q30_q31_q0 $q30_q31_q0_q1 $q31_q0_q1_q2 $q0_q1_q2 $q1_q2_q3 $q2_q3_q4 $q3_q4_q5 $q4_q5_q6 $q5_q6_q7 $q6_q7_q8 $q7_q8_q9 $q8_q9_q10 $q9_q10_q11 $q10_q11_q12 $q11_q12_q13 $q12_q13_q14 $q13_q14_q15 $q14_q15_q16 $q15_q16_q17 $q16_q17_q18 $q17_q18_q19 $q18_q19_q20 $q19_q20_q21 $q20_q21_q22 $q21_q22_q23 $q22_q23_q24 $q23_q24_q25 $q24_q25_q26 $q25_q26_q27 $q26_q27_q28 $q27_q28_q29 $q28_q29_q30 $q29_q30_q31 $q30_q31_q0 $q31_q0_q1 $x0_x1_x2_x3_x4_x5_x6_x7 $x2_x3_x4_x5_x6_x7_x8_x9 $x4_x5_x6_x7_x8_x9_x10_x11 $x6_x7_x8_x9_x10_x11_x12_x13 $x8_x9_x10_x11_x12_x13_x14_x15 $x10_x11_x12_x13_x14_x15_x16_x17 $x12_x13_x14_x15_x16_x17_x18_x19 $x14_x15_x16_x17_x18_x19_x20_x21 $x16_x17_x18_x19_x20_x21_x22_x23 $x18_x19_x20_x21_x22_x23_x24_x25 $w30_wzr $w0_w1 $w2_w3 $w4_w5 $w6_w7 $w8_w9 $w10_w11 $w12_w13 $w14_w15 $w16_w17 $w18_w19 $lr_xzr $x0_x1 $x2_x3 $x4_x5 $x6_x7 $x8_x9 $x10_x11 $x12_x13 $x14_x15 $x16_x17 $x18_x19 $z0_z1 $z1_z2 $z2_z3 $z3_z4 $z4_z5 $z5_z6 $z6_z7 $z7_z8 $z8_z9 $z9_z10 $z10_z11 $z11_z12 $z12_z13 $z13_z14 $z14_z15 $z15_z16 $z16_z17 $z17_z18 $z18_z19 $z19_z20 $z20_z21 $z21_z22 $z22_z23 $z23_z24 $z24_z25 $z25_z26 $z26_z27 $z27_z28 $z28_z29 $z29_z30 $z30_z31 $z31_z0 $z0_z1_z2_z3 $z1_z2_z3_z4 $z2_z3_z4_z5 $z3_z4_z5_z6 $z4_z5_z6_z7 $z5_z6_z7_z8 $z6_z7_z8_z9 $z7_z8_z9_z10 $z8_z9_z10_z11 $z9_z10_z11_z12 $z10_z11_z12_z13 $z11_z12_z13_z14 $z12_z13_z14_z15 $z13_z14_z15_z16 $z14_z15_z16_z17 $z15_z16_z17_z18 $z16_z17_z18_z19 $z17_z18_z19_z20 $z18_z19_z20_z21 $z19_z20_z21_z22 $z20_z21_z22_z23 $z21_z22_z23_z24 $z22_z23_z24_z25 $z23_z24_z25_z26 $z24_z25_z26_z27 $z25_z26_z27_z28 $z26_z27_z28_z29 $z27_z28_z29_z30 $z28_z29_z30_z31 $z29_z30_z31_z0 $z30_z31_z0_z1 $z31_z0_z1_z2 $z0_z1_z2 $z1_z2_z3 $z2_z3_z4 $z3_z4_z5 $z4_z5_z6 $z5_z6_z7 $z6_z7_z8 $z7_z8_z9 $z8_z9_z10 $z9_z10_z11 $z10_z11_z12 $z11_z12_z13 $z12_z13_z14 $z13_z14_z15 $z14_z15_z16 $z15_z16_z17 $z16_z17_z18 $z17_z18_z19 $z18_z19_z20 $z19_z20_z21 $z20_z21_z22 $z21_z22_z23 $z22_z23_z24 $z23_z24_z25 $z24_z25_z26 $z25_z26_z27 $z26_z27_z28 $z27_z28_z29 $z28_z29_z30 $z29_z30_z31 $z30_z31_z0 $z31_z0_z1 $z16_z24 $z17_z25 $z18_z26 $z19_z27 $z20_z28 $z21_z29 $z22_z30 $z23_z31 $z0_z8 $z1_z9 $z2_z10 $z3_z11 $z4_z12 $z5_z13 $z6_z14 $z7_z15 $z16_z20_z24_z28 $z17_z21_z25_z29 $z18_z22_z26_z30 $z19_z23_z27_z31 $z0_z4_z8_z12 $z1_z5_z9_z13 $z2_z6_z10_z14 $z3_z7_z11_z15
+; CHECK: baz Clobbered Registers: $ffr $fpcr $fpsr $nzcv $sp $vg $wsp $za $b0 $b1 $b2 $b3 $b4 $b5 $b6 $b7 $b16 $b17 $b18 $b19 $b20 $b21 $b22 $b23 $b24 $b25 $b26 $b27 $b28 $b29 $b30 $b31 $d0 $d1 $d2 $d3 $d4 $d5 $d6 $d7 $d16 $d17 $d18 $d19 $d20 $d21 $d22 $d23 $d24 $d25 $d26 $d27 $d28 $d29 $d30 $d31 $h0 $h1 $h2 $h3 $h4 $h5 $h6 $h7 $h16 $h17 $h18 $h19 $h20 $h21 $h22 $h23 $h24 $h25 $h26 $h27 $h28 $h29 $h30 $h31 $p0 $p1 $p2 $p3 $p4 $p5 $p6 $p7 $p8 $p9 $p10 $p11 $p12 $p13 $p14 $p15 $pn0 $pn1 $pn2 $pn3 $pn4 $pn5 $pn6 $pn7 $pn8 $pn9 $pn10 $pn11 $pn12 $pn13 $pn14 $pn15 $q0 $q1 $q2 $q3 $q4 $q5 $q6 $q7 $q8 $q9 $q10 $q11 $q12 $q13 $q14 $q15 $q16 $q17 $q18 $q19 $q20 $q21 $q22 $q23 $q24 $q25 $q26 $q27 $q28 $q29 $q30 $q31 $s0 $s1 $s2 $s3 $s4 $s5 $s6 $s7 $s16 $s17 $s18 $s19 $s20 $s21 $s22 $s23 $s24 $s25 $s26 $s27 $s28 $s29 $s30 $s31 $w0 $w1 $w2 $w3 $w4 $w5 $w6 $w7 $w8 $w16 $w17 $w18 $x0 $x1 $x2 $x3 $x4 $x5 $x6 $x7 $x8 $x16 $x17 $x18 $z0 $z1 $z2 $z3 $z4 $z5 $z6 $z7 $z8 $z9 $z10 $z11 $z12 $z13 $z14 $z15 $z16 $z17 $z18 $z19 $z20 $z21 $z22 $z23 $z24 $z25 $z26 $z27 $z28 $z29 $z30 $z31 $zab0 $zad0 $zad1 $zad2 $zad3 $zad4 $zad5 $zad6 $zad7 $zah0 $zah1 $zaq0 $zaq1 $zaq2 $zaq3 $zaq4 $zaq5 $zaq6 $zaq7 $zaq8 $zaq9 $zaq10 $zaq11 $zaq12 $zaq13 $zaq14 $zaq15 $zas0 $zas1 $zas2 $zas3 $zt0 $d0_d1 $d1_d2 $d2_d3 $d3_d4 $d4_d5 $d5_d6 $d6_d7 $d7_d8 $d15_d16 $d16_d17 $d17_d18 $d18_d19 $d19_d20 $d20_d21 $d21_d22 $d22_d23 $d23_d24 $d24_d25 $d25_d26 $d26_d27 $d27_d28 $d28_d29 $d29_d30 $d30_d31 $d31_d0 $d0_d1_d2_d3 $d1_d2_d3_d4 $d2_d3_d4_d5 $d3_d4_d5_d6 $d4_d5_d6_d7 $d5_d6_d7_d8 $d6_d7_d8_d9 $d7_d8_d9_d10 $d13_d14_d15_d16 $d14_d15_d16_d17 $d15_d16_d17_d18 $d16_d17_d18_d19 $d17_d18_d19_d20 $d18_d19_d20_d21 $d19_d20_d21_d22 $d20_d21_d22_d23 $d21_d22_d23_d24 $d22_d23_d24_d25 $d23_d24_d25_d26 $d24_d25_d26_d27 $d25_d26_d27_d28 $d26_d27_d28_d29 $d27_d28_d29_d30 $d28_d29_d30_d31 $d29_d30_d31_d0 $d30_d31_d0_d1 $d31_d0_d1_d2 $d0_d1_d2 $d1_d2_d3 $d2_d3_d4 $d3_d4_d5 $d4_d5_d6 $d5_d6_d7 $d6_d7_d8 $d7_d8_d9 $d14_d15_d16 $d15_d16_d17 $d16_d17_d18 $d17_d18_d19 $d18_d19_d20 $d19_d20_d21 $d20_d21_d22 $d21_d22_d23 $d22_d23_d24 $d23_d24_d25 $d24_d25_d26 $d25_d26_d27 $d26_d27_d28 $d27_d28_d29 $d28_d29_d30 $d29_d30_d31 $d30_d31_d0 $d31_d0_d1 $p0_p1 $p1_p2 $p2_p3 $p3_p4 $p4_p5 $p5_p6 $p6_p7 $p7_p8 $p8_p9 $p9_p10 $p10_p11 $p11_p12 $p12_p13 $p13_p14 $p14_p15 $p15_p0 $q0_q1 $q1_q2 $q2_q3 $q3_q4 $q4_q5 $q5_q6 $q6_q7 $q7_q8 $q8_q9 $q9_q10 $q10_q11 $q11_q12 $q12_q13 $q13_q14 $q14_q15 $q15_q16 $q16_q17 $q17_q18 $q18_q19 $q19_q20 $q20_q21 $q21_q22 $q22_q23 $q23_q24 $q24_q25 $q25_q26 $q26_q27 $q27_q28 $q28_q29 $q29_q30 $q30_q31 $q31_q0 $q0_q1_q2_q3 $q1_q2_q3_q4 $q2_q3_q4_q5 $q3_q4_q5_q6 $q4_q5_q6_q7 $q5_q6_q7_q8 $q6_q7_q8_q9 $q7_q8_q9_q10 $q8_q9_q10_q11 $q9_q10_q11_q12 $q10_q11_q12_q13 $q11_q12_q13_q14 $q12_q13_q14_q15 $q13_q14_q15_q16 $q14_q15_q16_q17 $q15_q16_q17_q18 $q16_q17_q18_q19 $q17_q18_q19_q20 $q18_q19_q20_q21 $q19_q20_q21_q22 $q20_q21_q22_q23 $q21_q22_q23_q24 $q22_q23_q24_q25 $q23_q24_q25_q26 $q24_q25_q26_q27 $q25_q26_q27_q28 $q26_q27_q28_q29 $q27_q28_q29_q30 $q28_q29_q30_q31 $q29_q30_q31_q0 $q30_q31_q0_q1 $q31_q0_q1_q2 $q0_q1_q2 $q1_q2_q3 $q2_q3_q4 $q3_q4_q5 $q4_q5_q6 $q5_q6_q7 $q6_q7_q8 $q7_q8_q9 $q8_q9_q10 $q9_q10_q11 $q10_q11_q12 $q11_q12_q13 $q12_q13_q14 $q13_q14_q15 $q14_q15_q16 $q15_q16_q17 $q16_q17_q18 $q17_q18_q19 $q18_q19_q20 $q19_q20_q21 $q20_q21_q22 $q21_q22_q23 $q22_q23_q24 $q23_q24_q25 $q24_q25_q26 $q25_q26_q27 $q26_q27_q28 $q27_q28_q29 $q28_q29_q30 $q29_q30_q31 $q30_q31_q0 $q31_q0_q1 $x0_x1_x2_x3_x4_x5_x6_x7 $x2_x3_x4_x5_x6_x7_x8_x9 $x4_x5_x6_x7_x8_x9_x10_x11 $x6_x7_x8_x9_x10_x11_x12_x13 $x8_x9_x10_x11_x12_x13_x14_x15 $x10_x11_x12_x13_x14_x15_x16_x17 $x12_x13_x14_x15_x16_x17_x18_x19 $x14_x15_x16_x17_x18_x19_x20_x21 $x16_x17_x18_x19_x20_x21_x22_x23 $x18_x19_x20_x21_x22_x23_x24_x25 $w30_wzr $w0_w1 $w2_w3 $w4_w5 $w6_w7 $w8_w9 $w10_w11 $w12_w13 $w14_w15 $w16_w17 $w18_w19 $lr_xzr $x0_x1 $x2_x3 $x4_x5 $x6_x7 $x8_x9 $x10_x11 $x12_x13 $x14_x15 $x16_x17 $x18_x19 $z0_z1 $z1_z2 $z2_z3 $z3_z4 $z4_z5 $z5_z6 $z6_z7 $z7_z8 $z8_z9 $z9_z10 $z10_z11 $z11_z12 $z12_z13 $z13_z14 $z14_z15 $z15_z16 $z16_z17 $z17_z18 $z18_z19 $z19_z20 $z20_z21 $z21_z22 $z22_z23 $z23_z24 $z24_z25 $z25_z26 $z26_z27 $z27_z28 $z28_z29 $z29_z30 $z30_z31 $z31_z0 $z0_z1_z2_z3 $z1_z2_z3_z4 $z2_z3_z4_z5 $z3_z4_z5_z6 $z4_z5_z6_z7 $z5_z6_z7_z8 $z6_z7_z8_z9 $z7_z8_z9_z10 $z8_z9_z10_z11 $z9_z10_z11_z12 $z10_z11_z12_z13 $z11_z12_z13_z14 $z12_z13_z14_z15 $z13_z14_z15_z16 $z14_z15_z16_z17 $z15_z16_z17_z18 $z16_z17_z18_z19 $z17_z18_z19_z20 $z18_z19_z20_z21 $z19_z20_z21_z22 $z20_z21_z22_z23 $z21_z22_z23_z24 $z22_z23_z24_z25 $z23_z24_z25_z26 $z24_z25_z26_z27 $z25_z26_z27_z28 $z26_z27_z28_z29 $z27_z28_z29_z30 $z28_z29_z30_z31 $z29_z30_z31_z0 $z30_z31_z0_z1 $z31_z0_z1_z2 $z0_z1_z2 $z1_z2_z3 $z2_z3_z4 $z3_z4_z5 $z4_z5_z6 $z5_z6_z7 $z6_z7_z8 $z7_z8_z9 $z8_z9_z10 $z9_z10_z11 $z10_z11_z12 $z11_z12_z13 $z12_z13_z14 $z13_z14_z15 $z14_z15_z16 $z15_z16_z17 $z16_z17_z18 $z17_z18_z19 $z18_z19_z20 $z19_z20_z21 $z20_z21_z22 $z21_z22_z23 $z22_z23_z24 $z23_z24_z25 $z24_z25_z26 $z25_z26_z27 $z26_z27_z28 $z27_z28_z29 $z28_z29_z30 $z29_z30_z31 $z30_z31_z0 $z31_z0_z1 $z16_z24 $z17_z25 $z18_z26 $z19_z27 $z20_z28 $z21_z29 $z22_z30 $z23_z31 $z0_z8 $z1_z9 $z2_z10 $z3_z11 $z4_z12 $z5_z13 $z6_z14 $z7_z15 $z16_z20_z24_z28 $z17_z21_z25_z29 $z18_z22_z26_z30 $z19_z23_z27_z31 $z0_z4_z8_z12 $z1_z5_z9_z13 $z2_z6_z10_z14 $z3_z7_z11_z15
call void @bar1()
call void @bar2()
ret void
}
define preserve_allcc void @foo() #0 {
-; CHECK: foo Clobbered Registers: $ffr $fpcr $nzcv $sp $vg $wsp $za $b0 $b1 $b2 $b3 $b4 $b5 $b6 $b7 $d0 $d1 $d2 $d3 $d4 $d5 $d6 $d7 $h0 $h1 $h2 $h3 $h4 $h5 $h6 $h7 $p0 $p1 $p2 $p3 $p4 $p5 $p6 $p7 $p8 $p9 $p10 $p11 $p12 $p13 $p14 $p15 $pn0 $pn1 $pn2 $pn3 $pn4 $pn5 $pn6 $pn7 $pn8 $pn9 $pn10 $pn11 $pn12 $pn13 $pn14 $pn15 $q0 $q1 $q2 $q3 $q4 $q5 $q6 $q7 $s0 $s1 $s2 $s3 $s4 $s5 $s6 $s7 $w0 $w1 $w2 $w3 $w4 $w5 $w6 $w7 $w8 $w16 $w17 $w18 $x0 $x1 $x2 $x3 $x4 $x5 $x6 $x7 $x8 $x16 $x17 $x18 $z0 $z1 $z2 $z3 $z4 $z5 $z6 $z7 $z8 $z9 $z10 $z11 $z12 $z13 $z14 $z15 $z16 $z17 $z18 $z19 $z20 $z21 $z22 $z23 $z24 $z25 $z26 $z27 $z28 $z29 $z30 $z31 $zab0 $zad0 $zad1 $zad2 $zad3 $zad4 $zad5 $zad6 $zad7 $zah0 $zah1 $zaq0 $zaq1 $zaq2 $zaq3 $zaq4 $zaq5 $zaq6 $zaq7 $zaq8 $zaq9 $zaq10 $zaq11 $zaq12 $zaq13 $zaq14 $zaq15 $zas0 $zas1 $zas2 $zas3 $zt0 $d0_d1 $d1_d2 $d2_d3 $d3_d4 $d4_d5 $d5_d6 $d6_d7 $d7_d8 $d15_d16 $d16_d17 $d17_d18 $d18_d19 $d19_d20 $d20_d21 $d21_d22 $d22_d23 $d23_d24 $d24_d25 $d25_d26 $d26_d27 $d27_d28 $d28_d29 $d29_d30 $d30_d31 $d31_d0 $d0_d1_d2_d3 $d1_d2_d3_d4 $d2_d3_d4_d5 $d3_d4_d5_d6 $d4_d5_d6_d7 $d5_d6_d7_d8 $d6_d7_d8_d9 $d7_d8_d9_d10 $d13_d14_d15_d16 $d14_d15_d16_d17 $d15_d16_d17_d18 $d16_d17_d18_d19 $d17_d18_d19_d20 $d18_d19_d20_d21 $d19_d20_d21_d22 $d20_d21_d22_d23 $d21_d22_d23_d24 $d22_d23_d24_d25 $d23_d24_d25_d26 $d24_d25_d26_d27 $d25_d26_d27_d28 $d26_d27_d28_d29 $d27_d28_d29_d30 $d28_d29_d30_d31 $d29_d30_d31_d0 $d30_d31_d0_d1 $d31_d0_d1_d2 $d0_d1_d2 $d1_d2_d3 $d2_d3_d4 $d3_d4_d5 $d4_d5_d6 $d5_d6_d7 $d6_d7_d8 $d7_d8_d9 $d14_d15_d16 $d15_d16_d17 $d16_d17_d18 $d17_d18_d19 $d18_d19_d20 $d19_d20_d21 $d20_d21_d22 $d21_d22_d23 $d22_d23_d24 $d23_d24_d25 $d24_d25_d26 $d25_d26_d27 $d26_d27_d28 $d27_d28_d29 $d28_d29_d30 $d29_d30_d31 $d30_d31_d0 $d31_d0_d1 $p0_p1 $p1_p2 $p2_p3 $p3_p4 $p4_p5 $p5_p6 $p6_p7 $p7_p8 $p8_p9 $p9_p10 $p10_p11 $p11_p12 $p12_p13 $p13_p14 $p14_p15 $p15_p0 $q0_q1 $q1_q2 $q2_q3 $q3_q4 $q4_q5 $q5_q6 $q6_q7 $q7_q8 $q8_q9 $q9_q10 $q10_q11 $q11_q12 $q12_q13 $q13_q14 $q14_q15 $q15_q16 $q16_q17 $q17_q18 $q18_q19 $q19_q20 $q20_q21 $q21_q22 $q22_q23 $q23_q24 $q24_q25 $q25_q26 $q26_q27 $q27_q28 $q28_q29 $q29_q30 $q30_q31 $q31_q0 $q0_q1_q2_q3 $q1_q2_q3_q4 $q2_q3_q4_q5 $q3_q4_q5_q6 $q4_q5_q6_q7 $q5_q6_q7_q8 $q6_q7_q8_q9 $q7_q8_q9_q10 $q8_q9_q10_q11 $q9_q10_q11_q12 $q10_q11_q12_q13 $q11_q12_q13_q14 $q12_q13_q14_q15 $q13_q14_q15_q16 $q14_q15_q16_q17 $q15_q16_q17_q18 $q16_q17_q18_q19 $q17_q18_q19_q20 $q18_q19_q20_q21 $q19_q20_q21_q22 $q20_q21_q22_q23 $q21_q22_q23_q24 $q22_q23_q24_q25 $q23_q24_q25_q26 $q24_q25_q26_q27 $q25_q26_q27_q28 $q26_q27_q28_q29 $q27_q28_q29_q30 $q28_q29_q30_q31 $q29_q30_q31_q0 $q30_q31_q0_q1 $q31_q0_q1_q2 $q0_q1_q2 $q1_q2_q3 $q2_q3_q4 $q3_q4_q5 $q4_q5_q6 $q5_q6_q7 $q6_q7_q8 $q7_q8_q9 $q8_q9_q10 $q9_q10_q11 $q10_q11_q12 $q11_q12_q13 $q12_q13_q14 $q13_q14_q15 $q14_q15_q16 $q15_q16_q17 $q16_q17_q18 $q17_q18_q19 $q18_q19_q20 $q19_q20_q21 $q20_q21_q22 $q21_q22_q23 $q22_q23_q24 $q23_q24_q25 $q24_q25_q26 $q25_q26_q27 $q26_q27_q28 $q27_q28_q29 $q28_q29_q30 $q29_q30_q31 $q30_q31_q0 $q31_q0_q1 $x0_x1_x2_x3_x4_x5_x6_x7 $x2_x3_x4_x5_x6_x7_x8_x9 $x4_x5_x6_x7_x8_x9_x10_x11 $x6_x7_x8_x9_x10_x11_x12_x13 $x8_x9_x10_x11_x12_x13_x14_x15 $x10_x11_x12_x13_x14_x15_x16_x17 $x12_x13_x14_x15_x16_x17_x18_x19 $x14_x15_x16_x17_x18_x19_x20_x21 $x16_x17_x18_x19_x20_x21_x22_x23 $x18_x19_x20_x21_x22_x23_x24_x25 $w30_wzr $w0_w1 $w2_w3 $w4_w5 $w6_w7 $w8_w9 $w10_w11 $w12_w13 $w14_w15 $w16_w17 $w18_w19 $lr_xzr $x0_x1 $x2_x3 $x4_x5 $x6_x7 $x8_x9 $x10_x11 $x12_x13 $x14_x15 $x16_x17 $x18_x19 $z0_z1 $z1_z2 $z2_z3 $z3_z4 $z4_z5 $z5_z6 $z6_z7 $z7_z8 $z8_z9 $z9_z10 $z10_z11 $z11_z12 $z12_z13 $z13_z14 $z14_z15 $z15_z16 $z16_z17 $z17_z18 $z18_z19 $z19_z20 $z20_z21 $z21_z22 $z22_z23 $z23_z24 $z24_z25 $z25_z26 $z26_z27 $z27_z28 $z28_z29 $z29_z30 $z30_z31 $z31_z0 $z0_z1_z2_z3 $z1_z2_z3_z4 $z2_z3_z4_z5 $z3_z4_z5_z6 $z4_z5_z6_z7 $z5_z6_z7_z8 $z6_z7_z8_z9 $z7_z8_z9_z10 $z8_z9_z10_z11 $z9_z10_z11_z12 $z10_z11_z12_z13 $z11_z12_z13_z14 $z12_z13_z14_z15 $z13_z14_z15_z16 $z14_z15_z16_z17 $z15_z16_z17_z18 $z16_z17_z18_z19 $z17_z18_z19_z20 $z18_z19_z20_z21 $z19_z20_z21_z22 $z20_z21_z22_z23 $z21_z22_z23_z24 $z22_z23_z24_z25 $z23_z24_z25_z26 $z24_z25_z26_z27 $z25_z26_z27_z28 $z26_z27_z28_z29 $z27_z28_z29_z30 $z28_z29_z30_z31 $z29_z30_z31_z0 $z30_z31_z0_z1 $z31_z0_z1_z2 $z0_z1_z2 $z1_z2_z3 $z2_z3_z4 $z3_z4_z5 $z4_z5_z6 $z5_z6_z7 $z6_z7_z8 $z7_z8_z9 $z8_z9_z10 $z9_z10_z11 $z10_z11_z12 $z11_z12_z13 $z12_z13_z14 $z13_z14_z15 $z14_z15_z16 $z15_z16_z17 $z16_z17_z18 $z17_z18_z19 $z18_z19_z20 $z19_z20_z21 $z20_z21_z22 $z21_z22_z23 $z22_z23_z24 $z23_z24_z25 $z24_z25_z26 $z25_z26_z27 $z26_...
[truncated]
|
|
Have these intrinsics been defined in the acle? https://github.com/ARM-software/acle/tree/main |
|
I don't see function that operate FP status bits in acle. |
|
Given these are LLVM intrinsics I don't see ACLE related concerns here. Depending on the extent of access required it might be worth promoting their inclusion but I doubt they'll be used extensively enough, especially in a "can be optimised by the compiler" context to warrant then. |
MDevereau
approved these changes
Feb 22, 2024
spavloff
added a commit
to spavloff/llvm-project
that referenced
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Feb 25, 2024
This is follow-up of llvm#81867. FPSR was not added to reserved registers, this resulted in machine verifier fails.
spavloff
added a commit
that referenced
this pull request
Feb 25, 2024
This is follow-up of #81867. FPSR was not added to reserved registers, this resulted in machine verifier fails.
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Two new intrinsics are introduced to read/write FPSR. They are similar to the existing intrinsics aarch64_{get,set}_fpcr.