forked from OSchip/llvm-project
539 lines
31 KiB
LLVM
539 lines
31 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instsimplify -S | FileCheck %s
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; fneg (fsub -0.0, X) ==> X
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define float @fsub_-0_x(float %a) #0 {
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; CHECK-LABEL: @fsub_-0_x(
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; CHECK-NEXT: [[T1:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0:[0-9]+]]
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; CHECK-NEXT: [[RET:%.*]] = fneg float [[T1]]
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; CHECK-NEXT: ret float [[RET]]
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;
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%t1 = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = fneg float %t1
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ret float %ret
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}
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define <2 x float> @fsub_-0_x_vec(<2 x float> %a) #0 {
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; CHECK-LABEL: @fsub_-0_x_vec(
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; CHECK-NEXT: [[T1:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.000000e+00, float -0.000000e+00>, <2 x float> [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = fneg <2 x float> [[T1]]
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; CHECK-NEXT: ret <2 x float> [[RET]]
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;
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%t1 = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float -0.0>, <2 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = fneg <2 x float> %t1
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ret <2 x float> %ret
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}
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define <2 x float> @fsub_-0_x_vec_undef_elts(<2 x float> %a) #0 {
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; CHECK-LABEL: @fsub_-0_x_vec_undef_elts(
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; CHECK-NEXT: [[T1:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.000000e+00, float undef>, <2 x float> [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = fneg <2 x float> [[T1]]
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; CHECK-NEXT: ret <2 x float> [[RET]]
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;
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%t1 = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float undef>, <2 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = fneg <2 x float> %t1
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ret <2 x float> %ret
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}
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define <2 x float> @fsub_negzero_vec_undef_elts(<2 x float> %x) #0 {
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; CHECK-LABEL: @fsub_negzero_vec_undef_elts(
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; CHECK-NEXT: [[R:%.*]] = call nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float undef, float -0.000000e+00>, <2 x float> [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%r = call nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float undef, float -0.0>, <2 x float> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %r
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}
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; fsub -0.0, (fsub -0.0, X) ==> X
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define float @fsub_-0_-0_x(float %a) #0 {
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; CHECK-LABEL: @fsub_-0_-0_x(
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; CHECK-NEXT: [[T1:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[T1]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[RET]]
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;
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%t1 = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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; fsub -0.0, (fneg X) ==> X
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define float @fneg_x(float %a) #0 {
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; CHECK-LABEL: @fneg_x(
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; CHECK-NEXT: ret float [[A:%.*]]
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;
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%t1 = fneg float %a
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%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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define <2 x float> @fsub_-0_-0_x_vec(<2 x float> %a) #0 {
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; CHECK-LABEL: @fsub_-0_-0_x_vec(
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; CHECK-NEXT: [[T1:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.000000e+00, float -0.000000e+00>, <2 x float> [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.000000e+00, float -0.000000e+00>, <2 x float> [[T1]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret <2 x float> [[RET]]
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;
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%t1 = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float -0.0>, <2 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float -0.0>, <2 x float> %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %ret
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}
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define <2 x float> @fneg_x_vec(<2 x float> %a) #0 {
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; CHECK-LABEL: @fneg_x_vec(
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; CHECK-NEXT: ret <2 x float> [[A:%.*]]
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;
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%t1 = fneg <2 x float> %a
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%ret = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float -0.0>, <2 x float> %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %ret
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}
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define <2 x float> @fsub_-0_-0_x_vec_undef_elts(<2 x float> %a) #0 {
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; CHECK-LABEL: @fsub_-0_-0_x_vec_undef_elts(
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; CHECK-NEXT: [[T1:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float undef, float -0.000000e+00>, <2 x float> [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.000000e+00, float undef>, <2 x float> [[T1]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret <2 x float> [[RET]]
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;
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%t1 = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float undef, float -0.0>, <2 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float undef>, <2 x float> %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %ret
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}
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define <2 x float> @fneg_x_vec_undef_elts(<2 x float> %a) #0 {
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; CHECK-LABEL: @fneg_x_vec_undef_elts(
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; CHECK-NEXT: ret <2 x float> [[A:%.*]]
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;
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%t1 = fneg <2 x float> %a
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%ret = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float><float -0.0, float undef>, <2 x float> %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %ret
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}
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; fsub -0.0, (fsub 0.0, X) != X
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define float @fsub_-0_0_x(float %a) #0 {
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; CHECK-LABEL: @fsub_-0_0_x(
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; CHECK-NEXT: [[T1:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[T1]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[RET]]
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;
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%t1 = call float @llvm.experimental.constrained.fsub.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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; fsub 0.0, (fsub -0.0, X) != X
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define float @fsub_0_-0_x(float %a) #0 {
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; CHECK-LABEL: @fsub_0_-0_x(
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; CHECK-NEXT: [[T1:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[T1]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[RET]]
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;
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%t1 = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call float @llvm.experimental.constrained.fsub.f32(float 0.0, float %t1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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; fsub X, 0 ==> X
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define float @fsub_x_0(float %x) #0 {
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; CHECK-LABEL: @fsub_x_0(
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; CHECK-NEXT: ret float [[X:%.*]]
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;
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%r = call float @llvm.experimental.constrained.fsub.f32(float %x, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %r
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}
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define <2 x float> @fsub_x_0_vec_undef(<2 x float> %x) #0 {
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; CHECK-LABEL: @fsub_x_0_vec_undef(
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; CHECK-NEXT: ret <2 x float> [[X:%.*]]
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;
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%r = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> %x, <2 x float><float undef, float 0.0>, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %r
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}
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; fadd X, -0 ==> X
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define float @fadd_x_n0(float %a) #0 {
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; CHECK-LABEL: @fadd_x_n0(
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; CHECK-NEXT: ret float [[A:%.*]]
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;
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%ret = call float @llvm.experimental.constrained.fadd.f32(float %a, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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define <2 x float> @fadd_x_n0_vec_undef_elt(<2 x float> %a) #0 {
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; CHECK-LABEL: @fadd_x_n0_vec_undef_elt(
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; CHECK-NEXT: ret <2 x float> [[A:%.*]]
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;
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%ret = call <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %a, <2 x float> <float -0.0, float undef>, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %ret
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}
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; fadd X, 0 ==> X
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define float @fadd_x_p0(float %a) #0 {
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; CHECK-LABEL: @fadd_x_p0(
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; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[RET]]
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;
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%ret = call float @llvm.experimental.constrained.fadd.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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define <2 x float> @fadd_x_p0_vec_undef_elt(<2 x float> %a) #0 {
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; CHECK-LABEL: @fadd_x_p0_vec_undef_elt(
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; CHECK-NEXT: [[RET:%.*]] = call <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> [[A:%.*]], <2 x float> <float 0.000000e+00, float undef>, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret <2 x float> [[RET]]
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;
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%ret = call <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %a, <2 x float> <float 0.0, float undef>, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %ret
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}
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; fmul X, 1.0 ==> X
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define double @fmul_X_1(double %a) #0 {
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; CHECK-LABEL: @fmul_X_1(
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; CHECK-NEXT: ret double [[A:%.*]]
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;
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%b = call double @llvm.experimental.constrained.fmul.f64(double 1.0, double %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret double %b
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}
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; Originally PR2642
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define <4 x float> @fmul_X_1_vec(<4 x float> %x) {
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; CHECK-LABEL: @fmul_X_1_vec(
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; CHECK-NEXT: ret <4 x float> [[X:%.*]]
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;
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%m = call <4 x float> @llvm.experimental.constrained.fmul.v4f32(<4 x float> %x, <4 x float> <float 1.0, float 1.0, float 1.0, float 1.0>, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <4 x float> %m
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}
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; fdiv X, 1.0 ==> X
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define float @fdiv_x_1(float %a) #0 {
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; CHECK-LABEL: @fdiv_x_1(
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; CHECK-NEXT: ret float [[A:%.*]]
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;
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%ret = call float @llvm.experimental.constrained.fdiv.f32(float %a, float 1.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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; The fabs can't be eliminated because llvm.experimental.constrained.sqrt.f32 may return -0 or NaN with
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; an arbitrary sign bit.
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define float @fabs_sqrt(float %a) #0 {
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; CHECK-LABEL: @fabs_sqrt(
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; CHECK-NEXT: [[SQRT:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[SQRT]])
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; CHECK-NEXT: ret float [[FABS]]
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;
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%sqrt = call float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%fabs = call float @llvm.fabs.f32(float %sqrt)
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ret float %fabs
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}
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; The fabs can't be eliminated because the nnan sqrt may still return -0.
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define float @fabs_sqrt_nnan(float %a) #0 {
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; CHECK-LABEL: @fabs_sqrt_nnan(
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; CHECK-NEXT: [[SQRT:%.*]] = call nnan float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[SQRT]])
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; CHECK-NEXT: ret float [[FABS]]
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;
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%sqrt = call nnan float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%fabs = call float @llvm.fabs.f32(float %sqrt)
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ret float %fabs
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}
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; The fabs can't be eliminated because the nsz sqrt may still return NaN.
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define float @fabs_sqrt_nsz(float %a) #0 {
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; CHECK-LABEL: @fabs_sqrt_nsz(
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; CHECK-NEXT: [[SQRT:%.*]] = call nsz float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[SQRT]])
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; CHECK-NEXT: ret float [[FABS]]
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;
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%sqrt = call nsz float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%fabs = call float @llvm.fabs.f32(float %sqrt)
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ret float %fabs
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}
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; The fabs can be eliminated because we're nsz and nnan.
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define float @fabs_sqrt_nnan_nsz(float %a) #0 {
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; CHECK-LABEL: @fabs_sqrt_nnan_nsz(
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; CHECK-NEXT: [[SQRT:%.*]] = call nnan nsz float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[SQRT]])
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; CHECK-NEXT: ret float [[FABS]]
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;
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%sqrt = call nnan nsz float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%fabs = call float @llvm.fabs.f32(float %sqrt)
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ret float %fabs
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}
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; The second fabs can be eliminated because the operand to sqrt cannot be -0.
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define float @fabs_sqrt_nnan_fabs(float %a) #0 {
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; CHECK-LABEL: @fabs_sqrt_nnan_fabs(
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; CHECK-NEXT: [[B:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]])
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; CHECK-NEXT: [[SQRT:%.*]] = call nnan float @llvm.experimental.constrained.sqrt.f32(float [[B]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[SQRT]])
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; CHECK-NEXT: ret float [[FABS]]
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;
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%b = call float @llvm.fabs.f32(float %a)
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%sqrt = call nnan float @llvm.experimental.constrained.sqrt.f32(float %b, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%fabs = call float @llvm.fabs.f32(float %sqrt)
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ret float %fabs
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}
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; Y - (Y - X) --> X
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define float @fsub_fsub_common_op(float %x, float %y) #0 {
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; CHECK-LABEL: @fsub_fsub_common_op(
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; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[S]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[R]]
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;
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%s = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %y, float %s, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %r
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}
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define <2 x float> @fsub_fsub_common_op_vec(<2 x float> %x, <2 x float> %y) #0 {
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; CHECK-LABEL: @fsub_fsub_common_op_vec(
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; CHECK-NEXT: [[S:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> [[Y:%.*]], <2 x float> [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[R:%.*]] = call reassoc nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> [[Y]], <2 x float> [[S]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%s = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> %y, <2 x float> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> %y, <2 x float> %s, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x float> %r
|
|
}
|
|
|
|
; Negative test - fsub is not commutative.
|
|
; Y - (X - Y) --> (Y - X) + Y (canonicalized)
|
|
|
|
define float @fsub_fsub_wrong_common_op(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fsub_fsub_wrong_common_op(
|
|
; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[S]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%s = call float @llvm.experimental.constrained.fsub.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %y, float %s, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - negated operand needed.
|
|
; (Y - X) - Y --> -X
|
|
|
|
define float @fsub_fsub_common_op_wrong_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fsub_fsub_common_op_wrong_commute(
|
|
; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[S]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%s = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %s, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - fsub is not commutative.
|
|
; (X - Y) - Y --> ?
|
|
|
|
define float @fsub_fsub_wrong_common_op_wrong_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fsub_fsub_wrong_common_op_wrong_commute(
|
|
; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[S]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%s = call float @llvm.experimental.constrained.fsub.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %s, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; (Y + X) - Y --> X
|
|
|
|
define float @fadd_fsub_common_op(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fadd_fsub_common_op(
|
|
; CHECK-NEXT: [[A:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[A]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%a = call float @llvm.experimental.constrained.fadd.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %a, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; (X + Y) - Y --> X
|
|
|
|
define <2 x float> @fadd_fsub_common_op_commute_vec(<2 x float> %x, <2 x float> %y) #0 {
|
|
; CHECK-LABEL: @fadd_fsub_common_op_commute_vec(
|
|
; CHECK-NEXT: [[A:%.*]] = call <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> [[X:%.*]], <2 x float> [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> [[A]], <2 x float> [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret <2 x float> [[R]]
|
|
;
|
|
%a = call <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %x, <2 x float> %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> %a, <2 x float> %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x float> %r
|
|
}
|
|
|
|
; Negative test - negated operand needed.
|
|
; Y - (Y + X) --> -X
|
|
|
|
define float @fadd_fsub_common_op_wrong_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fadd_fsub_common_op_wrong_commute(
|
|
; CHECK-NEXT: [[A:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%a = call float @llvm.experimental.constrained.fadd.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %y, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - negated operand needed.
|
|
; Y - (X + Y) --> -X
|
|
|
|
define float @fadd_fsub_common_op_wrong_commute_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fadd_fsub_common_op_wrong_commute_commute(
|
|
; CHECK-NEXT: [[A:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%a = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float %y, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Y + (X - Y) --> X
|
|
|
|
define <2 x float> @fsub_fadd_common_op_vec(<2 x float> %x, <2 x float> %y) #0 {
|
|
; CHECK-LABEL: @fsub_fadd_common_op_vec(
|
|
; CHECK-NEXT: [[S:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> [[X:%.*]], <2 x float> [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> [[Y]], <2 x float> [[S]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret <2 x float> [[R]]
|
|
;
|
|
%s = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> %x, <2 x float> %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %y, <2 x float> %s, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x float> %r
|
|
}
|
|
|
|
; (X - Y) + Y --> X
|
|
|
|
define float @fsub_fadd_common_op_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fsub_fadd_common_op_commute(
|
|
; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fadd.f32(float [[S]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%s = call float @llvm.experimental.constrained.fsub.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fadd.f32(float %s, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test.
|
|
; Y + (Y - X) --> ?
|
|
|
|
define float @fsub_fadd_common_op_wrong_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fsub_fadd_common_op_wrong_commute(
|
|
; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fadd.f32(float [[Y]], float [[S]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%s = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fadd.f32(float %y, float %s, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test.
|
|
; (Y - X) + Y --> ?
|
|
|
|
define float @fsub_fadd_common_op_wrong_commute_commute(float %x, float %y) #0 {
|
|
; CHECK-LABEL: @fsub_fadd_common_op_wrong_commute_commute(
|
|
; CHECK-NEXT: [[S:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[R:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fadd.f32(float [[S]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%s = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%r = call reassoc nsz float @llvm.experimental.constrained.fadd.f32(float %s, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %r
|
|
}
|
|
|
|
; Originally PR46627 - https://bugs.llvm.org/show_bug.cgi?id=46627
|
|
|
|
define float @maxnum_with_poszero_op(float %a) #0 {
|
|
; CHECK-LABEL: @maxnum_with_poszero_op(
|
|
; CHECK-NEXT: [[MAX:%.*]] = call float @llvm.experimental.constrained.maxnum.f32(float [[A:%.*]], float 0.000000e+00, metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[MAX]])
|
|
; CHECK-NEXT: ret float [[FABS]]
|
|
;
|
|
%max = call float @llvm.experimental.constrained.maxnum.f32(float %a, float 0.0, metadata !"fpexcept.ignore") #0
|
|
%fabs = call float @llvm.fabs.f32(float %max)
|
|
ret float %fabs
|
|
}
|
|
|
|
define float @maxnum_with_poszero_op_commute(float %a) #0 {
|
|
; CHECK-LABEL: @maxnum_with_poszero_op_commute(
|
|
; CHECK-NEXT: [[SQRT:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[MAX:%.*]] = call float @llvm.experimental.constrained.maxnum.f32(float 0.000000e+00, float [[SQRT]], metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[MAX]])
|
|
; CHECK-NEXT: ret float [[FABS]]
|
|
;
|
|
%sqrt = call float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%max = call float @llvm.experimental.constrained.maxnum.f32(float 0.0, float %sqrt, metadata !"fpexcept.ignore") #0
|
|
%fabs = call float @llvm.fabs.f32(float %max)
|
|
ret float %fabs
|
|
}
|
|
|
|
define float @maxnum_with_negzero_op(float %a) #0 {
|
|
; CHECK-LABEL: @maxnum_with_negzero_op(
|
|
; CHECK-NEXT: [[NNAN:%.*]] = call nnan float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABSA:%.*]] = call float @llvm.fabs.f32(float [[NNAN]])
|
|
; CHECK-NEXT: [[MAX:%.*]] = call float @llvm.experimental.constrained.maxnum.f32(float -0.000000e+00, float [[FABSA]], metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[MAX]])
|
|
; CHECK-NEXT: ret float [[FABS]]
|
|
;
|
|
%nnan = call nnan float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%fabsa = call float @llvm.fabs.f32(float %nnan)
|
|
%max = call float @llvm.experimental.constrained.maxnum.f32(float -0.0, float %fabsa, metadata !"fpexcept.ignore") #0
|
|
%fabs = call float @llvm.fabs.f32(float %max)
|
|
ret float %fabs
|
|
}
|
|
|
|
define float @maxnum_with_negzero_op_commute(float %a) #0 {
|
|
; CHECK-LABEL: @maxnum_with_negzero_op_commute(
|
|
; CHECK-NEXT: [[NNAN:%.*]] = call nnan float @llvm.experimental.constrained.sqrt.f32(float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABSA:%.*]] = call float @llvm.fabs.f32(float [[NNAN]])
|
|
; CHECK-NEXT: [[MAX:%.*]] = call float @llvm.experimental.constrained.maxnum.f32(float [[FABSA]], float -0.000000e+00, metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[MAX]])
|
|
; CHECK-NEXT: ret float [[FABS]]
|
|
;
|
|
%nnan = call nnan float @llvm.experimental.constrained.sqrt.f32(float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%fabsa = call float @llvm.fabs.f32(float %nnan)
|
|
%max = call float @llvm.experimental.constrained.maxnum.f32(float %fabsa, float -0.0, metadata !"fpexcept.ignore") #0
|
|
%fabs = call float @llvm.fabs.f32(float %max)
|
|
ret float %fabs
|
|
}
|
|
|
|
; If an operand is strictly greater than 0.0, we know the sign of the result of maxnum.
|
|
|
|
define float @maxnum_with_pos_one_op(float %a) #0 {
|
|
; CHECK-LABEL: @maxnum_with_pos_one_op(
|
|
; CHECK-NEXT: [[MAX:%.*]] = call float @llvm.experimental.constrained.maxnum.f32(float [[A:%.*]], float 1.000000e+00, metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[MAX]])
|
|
; CHECK-NEXT: ret float [[FABS]]
|
|
;
|
|
%max = call float @llvm.experimental.constrained.maxnum.f32(float %a, float 1.0, metadata !"fpexcept.ignore") #0
|
|
%fabs = call float @llvm.fabs.f32(float %max)
|
|
ret float %fabs
|
|
}
|
|
|
|
declare float @llvm.fabs.f32(float)
|
|
declare <2 x float> @llvm.fabs.v2f32(<2 x float>)
|
|
|
|
declare float @llvm.experimental.constrained.fadd.f32(float, float, metadata, metadata) #0
|
|
declare <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float>, <2 x float>, metadata, metadata) #0
|
|
|
|
declare float @llvm.experimental.constrained.fsub.f32(float, float, metadata, metadata) #0
|
|
declare <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float>, <2 x float>, metadata, metadata) #0
|
|
|
|
declare double @llvm.experimental.constrained.fmul.f64(double, double, metadata, metadata) #0
|
|
declare <4 x float> @llvm.experimental.constrained.fmul.v4f32(<4 x float>, <4 x float>, metadata, metadata) #0
|
|
|
|
declare float @llvm.experimental.constrained.fdiv.f32(float, float, metadata, metadata) #0
|
|
|
|
declare float @llvm.experimental.constrained.maxnum.f32(float, float, metadata) #0
|
|
declare float @llvm.experimental.constrained.sqrt.f32(float, metadata, metadata) #0
|
|
|
|
attributes #0 = { strictfp }
|