forked from OSchip/llvm-project
583 lines
35 KiB
LLVM
583 lines
35 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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;; x * 0 ==> 0 when no-nans and no-signed-zero
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define float @mul_zero_1(float %a) #0 {
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; CHECK-LABEL: @mul_zero_1(
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; CHECK-NEXT: ret float 0.000000e+00
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;
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%b = call nsz nnan float @llvm.experimental.constrained.fmul.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %b
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}
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define float @mul_zero_2(float %a) #0 {
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; CHECK-LABEL: @mul_zero_2(
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; CHECK-NEXT: ret float 0.000000e+00
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;
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%b = call fast float @llvm.experimental.constrained.fmul.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %b
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}
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define <2 x float> @mul_zero_nsz_nnan_vec_undef(<2 x float> %a) #0 {
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; CHECK-LABEL: @mul_zero_nsz_nnan_vec_undef(
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; CHECK-NEXT: ret <2 x float> zeroinitializer
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;
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%b = call nsz nnan <2 x float> @llvm.experimental.constrained.fmul.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> %b
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}
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;; x * 0 =/=> 0 when there could be nans or -0
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define float @no_mul_zero_1(float %a) #0 {
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; CHECK-LABEL: @no_mul_zero_1(
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; CHECK-NEXT: [[B:%.*]] = call nsz float @llvm.experimental.constrained.fmul.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0:[0-9]+]]
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; CHECK-NEXT: ret float [[B]]
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;
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%b = call nsz float @llvm.experimental.constrained.fmul.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %b
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}
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define float @no_mul_zero_2(float %a) #0 {
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; CHECK-LABEL: @no_mul_zero_2(
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; CHECK-NEXT: [[B:%.*]] = call nnan float @llvm.experimental.constrained.fmul.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[B]]
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;
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%b = call nnan float @llvm.experimental.constrained.fmul.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %b
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}
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define float @no_mul_zero_3(float %a) #0 {
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; CHECK-LABEL: @no_mul_zero_3(
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; CHECK-NEXT: [[B:%.*]] = call float @llvm.experimental.constrained.fmul.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[B]]
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;
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%b = call float @llvm.experimental.constrained.fmul.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %b
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}
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; -X + X --> 0.0 (with nnan on the fadd)
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define float @fadd_binary_fnegx(float %x) #0 {
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; CHECK-LABEL: @fadd_binary_fnegx(
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; CHECK-NEXT: [[NEGX:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[R:%.*]] = call nnan float @llvm.experimental.constrained.fadd.f32(float [[NEGX]], float [[X]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[R]]
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;
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%negx = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%r = call nnan float @llvm.experimental.constrained.fadd.f32(float %negx, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %r
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}
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define float @fadd_unary_fnegx(float %x) #0 {
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; CHECK-LABEL: @fadd_unary_fnegx(
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; CHECK-NEXT: ret float 0.000000e+00
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;
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%negx = fneg float %x
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%r = call nnan float @llvm.experimental.constrained.fadd.f32(float %negx, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %r
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}
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; X + -X --> 0.0 (with nnan on the fadd)
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define <2 x float> @fadd_binary_fnegx_commute_vec(<2 x float> %x) #0 {
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; CHECK-LABEL: @fadd_binary_fnegx_commute_vec(
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; CHECK-NEXT: [[NEGX:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.000000e+00, float -0.000000e+00>, <2 x float> [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[R:%.*]] = call nnan <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> [[X]], <2 x float> [[NEGX]], 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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%negx = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float -0.0, float -0.0>, <2 x float> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%r = call nnan <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %x, <2 x float> %negx, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %r
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}
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define <2 x float> @fadd_unary_fnegx_commute_vec(<2 x float> %x) #0 {
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; CHECK-LABEL: @fadd_unary_fnegx_commute_vec(
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; CHECK-NEXT: ret <2 x float> zeroinitializer
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;
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%negx = fneg <2 x float> %x
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%r = call nnan <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %x, <2 x float> %negx, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %r
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}
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define <2 x float> @fadd_fnegx_commute_vec_undef(<2 x float> %x) #0 {
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; CHECK-LABEL: @fadd_fnegx_commute_vec_undef(
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; CHECK-NEXT: [[NEGX:%.*]] = call <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: [[R:%.*]] = call nnan <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> [[X]], <2 x float> [[NEGX]], 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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%negx = call <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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%r = call nnan <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %x, <2 x float> %negx, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %r
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}
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; https://bugs.llvm.org/show_bug.cgi?id=26958
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; https://bugs.llvm.org/show_bug.cgi?id=27151
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define float @fadd_binary_fneg_nan(float %x) #0 {
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; CHECK-LABEL: @fadd_binary_fneg_nan(
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; CHECK-NEXT: [[T:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[COULD_BE_NAN:%.*]] = call ninf float @llvm.experimental.constrained.fadd.f32(float [[T]], float [[X]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[COULD_BE_NAN]]
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;
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%t = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.0, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%could_be_nan = call ninf float @llvm.experimental.constrained.fadd.f32(float %t, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %could_be_nan
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}
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define float @fadd_unary_fneg_nan(float %x) #0 {
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; CHECK-LABEL: @fadd_unary_fneg_nan(
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; CHECK-NEXT: [[T:%.*]] = fneg nnan float [[X:%.*]]
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; CHECK-NEXT: [[COULD_BE_NAN:%.*]] = call ninf float @llvm.experimental.constrained.fadd.f32(float [[T]], float [[X]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[COULD_BE_NAN]]
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;
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%t = fneg nnan float %x
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%could_be_nan = call ninf float @llvm.experimental.constrained.fadd.f32(float %t, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %could_be_nan
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}
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define float @fadd_binary_fneg_nan_commute(float %x) #0 {
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; CHECK-LABEL: @fadd_binary_fneg_nan_commute(
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; CHECK-NEXT: [[T:%.*]] = call nnan ninf float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[COULD_BE_NAN:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X]], float [[T]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[COULD_BE_NAN]]
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;
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%t = call nnan ninf float @llvm.experimental.constrained.fsub.f32(float -0.0, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%could_be_nan = call float @llvm.experimental.constrained.fadd.f32(float %x, float %t, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %could_be_nan
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}
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define float @fadd_unary_fneg_nan_commute(float %x) #0 {
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; CHECK-LABEL: @fadd_unary_fneg_nan_commute(
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; CHECK-NEXT: [[T:%.*]] = fneg nnan ninf float [[X:%.*]]
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; CHECK-NEXT: [[COULD_BE_NAN:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X]], float [[T]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[COULD_BE_NAN]]
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;
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%t = fneg nnan ninf float %x
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%could_be_nan = call float @llvm.experimental.constrained.fadd.f32(float %x, float %t, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %could_be_nan
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}
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; X + (0.0 - X) --> 0.0 (with nnan on the fadd)
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define float @fadd_fsub_nnan_ninf(float %x) #0 {
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; CHECK-LABEL: @fadd_fsub_nnan_ninf(
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; CHECK-NEXT: [[SUB:%.*]] = call nnan ninf float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[ZERO:%.*]] = call nnan ninf float @llvm.experimental.constrained.fadd.f32(float [[X]], float [[SUB]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[ZERO]]
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;
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%sub = call nnan ninf float @llvm.experimental.constrained.fsub.f32(float 0.0, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%zero = call nnan ninf float @llvm.experimental.constrained.fadd.f32(float %x, float %sub, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %zero
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}
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; (0.0 - X) + X --> 0.0 (with nnan on the fadd)
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define <2 x float> @fadd_fsub_nnan_ninf_commute_vec(<2 x float> %x) #0 {
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; CHECK-LABEL: @fadd_fsub_nnan_ninf_commute_vec(
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; CHECK-NEXT: [[SUB:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> zeroinitializer, <2 x float> [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[ZERO:%.*]] = call nnan ninf <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> [[SUB]], <2 x float> [[X]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret <2 x float> [[ZERO]]
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;
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%sub = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> zeroinitializer, <2 x float> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%zero = call nnan ninf <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %sub, <2 x float> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret <2 x float> %zero
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}
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; 'ninf' is not required because 'nnan' allows us to assume
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; that X is not INF or -INF (adding opposite INFs would be NaN).
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define float @fadd_fsub_nnan(float %x) #0 {
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; CHECK-LABEL: @fadd_fsub_nnan(
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; CHECK-NEXT: [[SUB:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[ZERO:%.*]] = call nnan float @llvm.experimental.constrained.fadd.f32(float [[SUB]], float [[X]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[ZERO]]
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;
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%sub = call float @llvm.experimental.constrained.fsub.f32(float 0.0, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%zero = call nnan float @llvm.experimental.constrained.fadd.f32(float %sub, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %zero
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}
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; fsub nnan x, x ==> 0.0
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define float @fsub_x_x(float %a) #0 {
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; X - X ==> 0
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; CHECK-LABEL: @fsub_x_x(
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; CHECK-NEXT: [[NO_ZERO1:%.*]] = call ninf float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[NO_ZERO2:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[NO_ZERO:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[NO_ZERO1]], float [[NO_ZERO2]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: ret float [[NO_ZERO]]
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;
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%zero1 = call nnan float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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; Dont fold
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%no_zero1 = call ninf float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%no_zero2 = call float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%no_zero = call float @llvm.experimental.constrained.fadd.f32(float %no_zero1, float %no_zero2, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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; Should get folded
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%ret = call nsz float @llvm.experimental.constrained.fadd.f32(float %no_zero, float %zero1, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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ret float %ret
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}
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; fsub nsz 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 nsz 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 nsz 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 nsz 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 nsz 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_undef1(<2 x float> %a) #0 {
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; CHECK-LABEL: @fsub_0_0_x_vec_undef1(
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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:%.*]] = call nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> zeroinitializer, <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 undef>, <2 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> zeroinitializer, <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_undef1(<2 x float> %a) #0 {
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; CHECK-LABEL: @fneg_x_vec_undef1(
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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 nsz <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> @fsub_0_0_x_vec_undef2(<2 x float> %a) #0 {
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; CHECK-LABEL: @fsub_0_0_x_vec_undef2(
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; CHECK-NEXT: [[T1:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> zeroinitializer, <2 x float> [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
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; CHECK-NEXT: [[RET:%.*]] = call nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float undef, 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> zeroinitializer, <2 x float> %a, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
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%ret = call nsz <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float undef, 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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; fadd nsz X, 0 ==> X
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define <2 x float> @fadd_zero_nsz_vec(<2 x float> %x) #0 {
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; CHECK-LABEL: @fadd_zero_nsz_vec(
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; CHECK-NEXT: ret <2 x float> [[X:%.*]]
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;
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%r = call nsz <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %x, <2 x float> zeroinitializer, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x float> %r
|
|
}
|
|
|
|
define <2 x float> @fadd_zero_nsz_vec_undef(<2 x float> %x) #0 {
|
|
; CHECK-LABEL: @fadd_zero_nsz_vec_undef(
|
|
; CHECK-NEXT: ret <2 x float> [[X:%.*]]
|
|
;
|
|
%r = call nsz <2 x float> @llvm.experimental.constrained.fadd.v2f32(<2 x float> %x, <2 x float> <float 0.0, float undef>, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x float> %r
|
|
}
|
|
|
|
define float @nofold_fadd_x_0(float %a) #0 {
|
|
; Dont fold
|
|
; CHECK-LABEL: @nofold_fadd_x_0(
|
|
; CHECK-NEXT: [[NO_ZERO1:%.*]] = call ninf float @llvm.experimental.constrained.fadd.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[NO_ZERO2:%.*]] = call nnan float @llvm.experimental.constrained.fadd.f32(float [[A]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[NO_ZERO:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[NO_ZERO1]], float [[NO_ZERO2]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[NO_ZERO]]
|
|
;
|
|
%no_zero1 = call ninf float @llvm.experimental.constrained.fadd.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%no_zero2 = call nnan float @llvm.experimental.constrained.fadd.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%no_zero = call float @llvm.experimental.constrained.fadd.f32(float %no_zero1, float %no_zero2, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %no_zero
|
|
}
|
|
|
|
define float @fold_fadd_nsz_x_0(float %a) #0 {
|
|
; CHECK-LABEL: @fold_fadd_nsz_x_0(
|
|
; CHECK-NEXT: ret float [[A:%.*]]
|
|
;
|
|
%add = call nsz float @llvm.experimental.constrained.fadd.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %add
|
|
}
|
|
|
|
; 'nsz' does not guarantee that -0.0 does not occur, so this does not simplify.
|
|
|
|
define float @fold_fadd_cannot_be_neg0_nsz_src_x_0(float %a, float %b) #0 {
|
|
; CHECK-LABEL: @fold_fadd_cannot_be_neg0_nsz_src_x_0(
|
|
; CHECK-NEXT: [[NSZ:%.*]] = call nsz float @llvm.experimental.constrained.fmul.f32(float [[A:%.*]], float [[B:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[NSZ]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%nsz = call nsz float @llvm.experimental.constrained.fmul.f32(float %a, float %b, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%add = call float @llvm.experimental.constrained.fadd.f32(float %nsz, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %add
|
|
}
|
|
|
|
define float @fold_fadd_cannot_be_neg0_fabs_src_x_0(float %a) #0 {
|
|
; CHECK-LABEL: @fold_fadd_cannot_be_neg0_fabs_src_x_0(
|
|
; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]])
|
|
; CHECK-NEXT: ret float [[FABS]]
|
|
;
|
|
%fabs = call float @llvm.fabs.f32(float %a)
|
|
%add = call float @llvm.experimental.constrained.fadd.f32(float %fabs, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %add
|
|
}
|
|
|
|
; 'nsz' does not guarantee that -0.0 does not occur, so this does not simplify.
|
|
|
|
define float @fold_fadd_cannot_be_neg0_sqrt_nsz_src_x_0(float %a, float %b) #0 {
|
|
; CHECK-LABEL: @fold_fadd_cannot_be_neg0_sqrt_nsz_src_x_0(
|
|
; CHECK-NEXT: [[NSZ:%.*]] = call nsz float @llvm.experimental.constrained.fmul.f32(float [[A:%.*]], float [[B:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[SQRT:%.*]] = call float @llvm.experimental.constrained.sqrt.f32(float [[NSZ]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[SQRT]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%nsz = call nsz float @llvm.experimental.constrained.fmul.f32(float %a, float %b, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%sqrt = call float @llvm.experimental.constrained.sqrt.f32(float %nsz, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%add = call float @llvm.experimental.constrained.fadd.f32(float %sqrt, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %add
|
|
}
|
|
|
|
; 'nsz' does not guarantee that -0.0 does not occur, so this does not simplify.
|
|
|
|
define float @fold_fadd_cannot_be_neg0_canonicalize_nsz_src_x_0(float %a, float %b) #0 {
|
|
; CHECK-LABEL: @fold_fadd_cannot_be_neg0_canonicalize_nsz_src_x_0(
|
|
; CHECK-NEXT: [[NSZ:%.*]] = call nsz float @llvm.experimental.constrained.fmul.f32(float [[A:%.*]], float [[B:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[CANON:%.*]] = call float @llvm.canonicalize.f32(float [[NSZ]])
|
|
; CHECK-NEXT: [[ADD:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[CANON]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%nsz = call nsz float @llvm.experimental.constrained.fmul.f32(float %a, float %b, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%canon = call float @llvm.canonicalize.f32(float %nsz)
|
|
%add = call float @llvm.experimental.constrained.fadd.f32(float %canon, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %add
|
|
}
|
|
|
|
; fdiv nsz nnan 0, X ==> 0
|
|
; 0 / X -> 0
|
|
|
|
define double @fdiv_zero_by_x(double %x) #0 {
|
|
; CHECK-LABEL: @fdiv_zero_by_x(
|
|
; CHECK-NEXT: ret double 0.000000e+00
|
|
;
|
|
%r = call nnan nsz double @llvm.experimental.constrained.fdiv.f64(double 0.0, double %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %r
|
|
}
|
|
|
|
define <2 x double> @fdiv_zero_by_x_vec_undef(<2 x double> %x) #0 {
|
|
; CHECK-LABEL: @fdiv_zero_by_x_vec_undef(
|
|
; CHECK-NEXT: ret <2 x double> zeroinitializer
|
|
;
|
|
%r = call nnan nsz <2 x double> @llvm.experimental.constrained.fdiv.v2f64(<2 x double> <double 0.0, double undef>, <2 x double> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x double> %r
|
|
}
|
|
|
|
; 0 % X -> 0
|
|
; nsz is not necessary - frem result always has the sign of the dividend
|
|
|
|
define double @frem_zero_by_x(double %x) #0 {
|
|
; CHECK-LABEL: @frem_zero_by_x(
|
|
; CHECK-NEXT: ret double 0.000000e+00
|
|
;
|
|
%r = call nnan double @llvm.experimental.constrained.frem.f64(double 0.0, double %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %r
|
|
}
|
|
|
|
define <2 x double> @frem_poszero_by_x_vec_undef(<2 x double> %x) #0 {
|
|
; CHECK-LABEL: @frem_poszero_by_x_vec_undef(
|
|
; CHECK-NEXT: ret <2 x double> zeroinitializer
|
|
;
|
|
%r = call nnan <2 x double> @llvm.experimental.constrained.frem.v2f64(<2 x double> <double 0.0, double undef>, <2 x double> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x double> %r
|
|
}
|
|
|
|
; -0 % X -> -0
|
|
; nsz is not necessary - frem result always has the sign of the dividend
|
|
|
|
define double @frem_negzero_by_x(double %x) #0 {
|
|
; CHECK-LABEL: @frem_negzero_by_x(
|
|
; CHECK-NEXT: ret double -0.000000e+00
|
|
;
|
|
%r = call nnan double @llvm.experimental.constrained.frem.f64(double -0.0, double %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %r
|
|
}
|
|
|
|
define <2 x double> @frem_negzero_by_x_vec_undef(<2 x double> %x) #0 {
|
|
; CHECK-LABEL: @frem_negzero_by_x_vec_undef(
|
|
; CHECK-NEXT: ret <2 x double> <double -0.000000e+00, double -0.000000e+00>
|
|
;
|
|
%r = call nnan <2 x double> @llvm.experimental.constrained.frem.v2f64(<2 x double> <double undef, double -0.0>, <2 x double> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x double> %r
|
|
}
|
|
|
|
define float @fdiv_self(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_self(
|
|
; CHECK-NEXT: ret float 1.000000e+00
|
|
;
|
|
%div = call nnan float @llvm.experimental.constrained.fdiv.f32(float %f, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define float @fdiv_self_invalid(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_self_invalid(
|
|
; CHECK-NEXT: [[DIV:%.*]] = call float @llvm.experimental.constrained.fdiv.f32(float [[F:%.*]], float [[F]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[DIV]]
|
|
;
|
|
%div = call float @llvm.experimental.constrained.fdiv.f32(float %f, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define float @fdiv_neg1(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_neg1(
|
|
; CHECK-NEXT: [[NEG:%.*]] = call fast float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[DIV:%.*]] = call nnan float @llvm.experimental.constrained.fdiv.f32(float [[NEG]], float [[F]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[DIV]]
|
|
;
|
|
%neg = call fast float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%div = call nnan float @llvm.experimental.constrained.fdiv.f32(float %neg, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define float @fdiv_neg2(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_neg2(
|
|
; CHECK-NEXT: [[NEG:%.*]] = call fast float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[DIV:%.*]] = call nnan float @llvm.experimental.constrained.fdiv.f32(float [[NEG]], float [[F]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[DIV]]
|
|
;
|
|
%neg = call fast float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%div = call nnan float @llvm.experimental.constrained.fdiv.f32(float %neg, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define float @fdiv_neg_invalid(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_neg_invalid(
|
|
; CHECK-NEXT: [[NEG:%.*]] = call fast float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[DIV:%.*]] = call float @llvm.experimental.constrained.fdiv.f32(float [[NEG]], float [[F]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[DIV]]
|
|
;
|
|
%neg = call fast float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%div = call float @llvm.experimental.constrained.fdiv.f32(float %neg, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define float @fdiv_neg_swapped1(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_neg_swapped1(
|
|
; CHECK-NEXT: [[NEG:%.*]] = call fast float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[DIV:%.*]] = call nnan float @llvm.experimental.constrained.fdiv.f32(float [[F]], float [[NEG]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[DIV]]
|
|
;
|
|
%neg = call fast float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%div = call nnan float @llvm.experimental.constrained.fdiv.f32(float %f, float %neg, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define float @fdiv_neg_swapped2(float %f) #0 {
|
|
; CHECK-LABEL: @fdiv_neg_swapped2(
|
|
; CHECK-NEXT: [[NEG:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[DIV:%.*]] = call nnan float @llvm.experimental.constrained.fdiv.f32(float [[F]], float [[NEG]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret float [[DIV]]
|
|
;
|
|
%neg = call float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%div = call nnan float @llvm.experimental.constrained.fdiv.f32(float %f, float %neg, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret float %div
|
|
}
|
|
|
|
define <2 x float> @fdiv_neg_vec_undef_elt(<2 x float> %f) #0 {
|
|
; CHECK-LABEL: @fdiv_neg_vec_undef_elt(
|
|
; CHECK-NEXT: [[NEG:%.*]] = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float 0.000000e+00, float undef>, <2 x float> [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: [[DIV:%.*]] = call nnan <2 x float> @llvm.experimental.constrained.fdiv.v2f32(<2 x float> [[F]], <2 x float> [[NEG]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret <2 x float> [[DIV]]
|
|
;
|
|
%neg = call <2 x float> @llvm.experimental.constrained.fsub.v2f32(<2 x float> <float 0.000000e+00, float undef>, <2 x float> %f, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
%div = call nnan <2 x float> @llvm.experimental.constrained.fdiv.v2f32(<2 x float> %f, <2 x float> %neg, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret <2 x float> %div
|
|
}
|
|
|
|
; PR21126: http://llvm.org/bugs/show_bug.cgi?id=21126
|
|
; With loose math, sqrt(X) * sqrt(X) is just X.
|
|
|
|
declare double @llvm.sqrt.f64(double)
|
|
|
|
define double @sqrt_squared(double %f) #0 {
|
|
; CHECK-LABEL: @sqrt_squared(
|
|
; CHECK-NEXT: [[SQRT:%.*]] = call double @llvm.experimental.constrained.sqrt.f64(double [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
; CHECK-NEXT: [[MUL:%.*]] = call reassoc nnan nsz double @llvm.experimental.constrained.fmul.f64(double [[SQRT]], double [[SQRT]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret double [[MUL]]
|
|
;
|
|
%sqrt = call double @llvm.experimental.constrained.sqrt.f64(double %f, metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
%mul = call reassoc nnan nsz double @llvm.experimental.constrained.fmul.f64(double %sqrt, double %sqrt, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %mul
|
|
}
|
|
|
|
; Negative tests for the above transform: we need all 3 of those flags.
|
|
|
|
define double @sqrt_squared_not_fast_enough1(double %f) #0 {
|
|
; CHECK-LABEL: @sqrt_squared_not_fast_enough1(
|
|
; CHECK-NEXT: [[SQRT:%.*]] = call double @llvm.experimental.constrained.sqrt.f64(double [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
; CHECK-NEXT: [[MUL:%.*]] = call nnan nsz double @llvm.experimental.constrained.fmul.f64(double [[SQRT]], double [[SQRT]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret double [[MUL]]
|
|
;
|
|
%sqrt = call double @llvm.experimental.constrained.sqrt.f64(double %f, metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
%mul = call nnan nsz double @llvm.experimental.constrained.fmul.f64(double %sqrt, double %sqrt, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %mul
|
|
}
|
|
|
|
define double @sqrt_squared_not_fast_enough2(double %f) #0 {
|
|
; CHECK-LABEL: @sqrt_squared_not_fast_enough2(
|
|
; CHECK-NEXT: [[SQRT:%.*]] = call double @llvm.experimental.constrained.sqrt.f64(double [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
; CHECK-NEXT: [[MUL:%.*]] = call reassoc nnan double @llvm.experimental.constrained.fmul.f64(double [[SQRT]], double [[SQRT]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret double [[MUL]]
|
|
;
|
|
%sqrt = call double @llvm.experimental.constrained.sqrt.f64(double %f, metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
%mul = call reassoc nnan double @llvm.experimental.constrained.fmul.f64(double %sqrt, double %sqrt, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %mul
|
|
}
|
|
|
|
define double @sqrt_squared_not_fast_enough3(double %f) #0 {
|
|
; CHECK-LABEL: @sqrt_squared_not_fast_enough3(
|
|
; CHECK-NEXT: [[SQRT:%.*]] = call double @llvm.experimental.constrained.sqrt.f64(double [[F:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
; CHECK-NEXT: [[MUL:%.*]] = call reassoc nsz double @llvm.experimental.constrained.fmul.f64(double [[SQRT]], double [[SQRT]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]]
|
|
; CHECK-NEXT: ret double [[MUL]]
|
|
;
|
|
%sqrt = call double @llvm.experimental.constrained.sqrt.f64(double %f, metadata !"round.tonearest", metadata !"fpexcept.ignore")
|
|
%mul = call reassoc nsz double @llvm.experimental.constrained.fmul.f64(double %sqrt, double %sqrt, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0
|
|
ret double %mul
|
|
}
|
|
|
|
declare float @llvm.fabs.f32(float)
|
|
declare float @llvm.experimental.constrained.sqrt.f32(float, metadata, metadata) #0
|
|
declare double @llvm.experimental.constrained.sqrt.f64(double, metadata, metadata) #0
|
|
declare float @llvm.canonicalize.f32(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 float @llvm.experimental.constrained.fmul.f32(float, float, metadata, metadata) #0
|
|
declare double @llvm.experimental.constrained.fmul.f64(double, double, metadata, metadata) #0
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declare <2 x float> @llvm.experimental.constrained.fmul.v2f32(<2 x float>, <2 x float>, metadata, metadata) #0
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declare float @llvm.experimental.constrained.fdiv.f32(float, float, metadata, metadata) #0
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declare double @llvm.experimental.constrained.fdiv.f64(double, double, metadata, metadata) #0
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declare <2 x float> @llvm.experimental.constrained.fdiv.v2f32(<2 x float>, <2 x float>, metadata, metadata) #0
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declare <2 x double> @llvm.experimental.constrained.fdiv.v2f64(<2 x double>, <2 x double>, metadata, metadata) #0
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declare double @llvm.experimental.constrained.frem.f64(double, double, metadata, metadata) #0
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declare <2 x double> @llvm.experimental.constrained.frem.v2f64(<2 x double>, <2 x double>, metadata, metadata) #0
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attributes #0 = { strictfp }
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