| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s |
| |
| define float @fdiv_constant_fold() #0 { |
| ; CHECK-LABEL: @fdiv_constant_fold( |
| ; CHECK-NEXT: ret float 1.500000e+00 |
| ; |
| %f = call float @llvm.experimental.constrained.fdiv.f32(float 3.0, float 2.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| |
| ret float %f |
| } |
| |
| define float @fdiv_constant_fold_strict() #0 { |
| ; CHECK-LABEL: @fdiv_constant_fold_strict( |
| ; CHECK-NEXT: [[F:%.*]] = call float @llvm.experimental.constrained.fdiv.f32(float 3.000000e+00, float 2.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0:[0-9]+]] |
| ; CHECK-NEXT: ret float 1.500000e+00 |
| ; |
| %f = call float @llvm.experimental.constrained.fdiv.f32(float 3.0, float 2.0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 |
| |
| ret float %f |
| } |
| |
| define float @fdiv_constant_fold_strict2() #0 { |
| ; CHECK-LABEL: @fdiv_constant_fold_strict2( |
| ; CHECK-NEXT: [[F:%.*]] = call float @llvm.experimental.constrained.fdiv.f32(float 2.000000e+00, float 3.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]] |
| ; CHECK-NEXT: ret float [[F]] |
| ; |
| %f = call float @llvm.experimental.constrained.fdiv.f32(float 2.0, float 3.0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 |
| |
| ret float %f |
| } |
| |
| define float @frem_constant_fold() #0 { |
| ; CHECK-LABEL: @frem_constant_fold( |
| ; CHECK-NEXT: ret float 1.000000e+00 |
| ; |
| %f = call float @llvm.experimental.constrained.frem.f32(float 3.0, float 2.0, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| ret float %f |
| } |
| |
| define float @frem_constant_fold_strict() #0 { |
| ; CHECK-LABEL: @frem_constant_fold_strict( |
| ; CHECK-NEXT: [[F:%.*]] = call float @llvm.experimental.constrained.frem.f32(float 3.000000e+00, float 2.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict") #[[ATTR0]] |
| ; CHECK-NEXT: ret float 1.000000e+00 |
| ; |
| %f = call float @llvm.experimental.constrained.frem.f32(float 3.0, float 2.0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 |
| ret float %f |
| } |
| |
| define double @fmul_fdiv_common_operand(double %x, double %y) #0 { |
| ; CHECK-LABEL: @fmul_fdiv_common_operand( |
| ; CHECK-NEXT: [[M:%.*]] = call double @llvm.experimental.constrained.fmul.f64(double [[X:%.*]], double [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]] |
| ; CHECK-NEXT: [[D:%.*]] = call reassoc nnan double @llvm.experimental.constrained.fdiv.f64(double [[M]], double [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]] |
| ; CHECK-NEXT: ret double [[D]] |
| ; |
| %m = call double @llvm.experimental.constrained.fmul.f64(double %x, double %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| %d = call reassoc nnan double @llvm.experimental.constrained.fdiv.f64(double %m, double %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| ret double %d |
| } |
| |
| ; Negative test - the fdiv must be reassociative and not allow NaNs. |
| |
| define double @fmul_fdiv_common_operand_too_strict(double %x, double %y) #0 { |
| ; CHECK-LABEL: @fmul_fdiv_common_operand_too_strict( |
| ; CHECK-NEXT: [[M:%.*]] = call fast double @llvm.experimental.constrained.fmul.f64(double [[X:%.*]], double [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]] |
| ; CHECK-NEXT: [[D:%.*]] = call reassoc double @llvm.experimental.constrained.fdiv.f64(double [[M]], double [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]] |
| ; CHECK-NEXT: ret double [[D]] |
| ; |
| %m = call fast double @llvm.experimental.constrained.fmul.f64(double %x, double %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| %d = call reassoc double @llvm.experimental.constrained.fdiv.f64(double %m, double %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| ret double %d |
| } |
| |
| ; Commute the fmul operands. Use a vector type to verify that works too. |
| |
| define <2 x float> @fmul_fdiv_common_operand_commute_vec(<2 x float> %x, <2 x float> %y) #0 { |
| ; CHECK-LABEL: @fmul_fdiv_common_operand_commute_vec( |
| ; CHECK-NEXT: [[M:%.*]] = call <2 x float> @llvm.experimental.constrained.fmul.v2f32(<2 x float> [[Y:%.*]], <2 x float> [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]] |
| ; CHECK-NEXT: [[D:%.*]] = call fast <2 x float> @llvm.experimental.constrained.fdiv.v2f32(<2 x float> [[M]], <2 x float> [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore") #[[ATTR0]] |
| ; CHECK-NEXT: ret <2 x float> [[D]] |
| ; |
| %m = call <2 x float> @llvm.experimental.constrained.fmul.v2f32(<2 x float> %y, <2 x float> %x, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| %d = call fast <2 x float> @llvm.experimental.constrained.fdiv.v2f32(<2 x float> %m, <2 x float> %y, metadata !"round.tonearest", metadata !"fpexcept.ignore") #0 |
| ret <2 x float> %d |
| } |
| |
| declare double @llvm.experimental.constrained.fmul.f64(double, double, metadata, metadata) #0 |
| declare <2 x float> @llvm.experimental.constrained.fmul.v2f32(<2 x float>, <2 x float>, metadata, metadata) #0 |
| |
| declare float @llvm.experimental.constrained.fdiv.f32(float, float, metadata, metadata) #0 |
| declare double @llvm.experimental.constrained.fdiv.f64(double, double, metadata, metadata) #0 |
| declare <2 x float> @llvm.experimental.constrained.fdiv.v2f32(<2 x float>, <2 x float>, metadata, metadata) #0 |
| |
| declare float @llvm.experimental.constrained.frem.f32(float, float, metadata, metadata) #0 |
| |
| attributes #0 = { strictfp } |
| |