43 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -mreassociate -o - %s \2// RUN: | FileCheck --check-prefix CHECK %s3 4// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -mreassociate -o - %s \5// RUN: | FileCheck --check-prefix CHECK %s6 7// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -mreassociate \8// RUN: -fprotect-parens -ffp-contract=on -o - %s \9// RUN: | FileCheck --check-prefix CHECK %s10 11template <typename T> T addAF(T a, T b) {12 return __arithmetic_fence(a + b);13}14 15int addit(float a, float b) {16 // CHECK-LABEL: define {{.*}} @{{.*}}additff(float {{.*}}, float {{.*}}) #0 {17 float af = addAF(a,b);18 19 // CHECK: [[ADDR_A:%.*]] = alloca float, align 420 // CHECK-NEXT: [[ADDR_B:%.*]] = alloca float, align 421 // CHECK-NEXT: [[AF:%.*]] = alloca float, align 422 // CHECK-NEXT: store float {{.*}}, ptr [[ADDR_A]], align 423 // CHECK-NEXT: store float {{.*}}, ptr [[ADDR_B]], align 424 // CHECK-NEXT: [[TEMP_A:%.*]] = load float, ptr [[ADDR_A]], align 425 // CHECK-NEXT: [[TEMP_B:%.*]] = load float, ptr [[ADDR_B]], align 426 // CHECK-NEXT: [[CALL2:%.*]] = call reassoc noundef float @_Z5addAFIfET_S0_S0_(float noundef [[TEMP_A]], float noundef [[TEMP_B]])27 // CHECK-NEXT: store float [[CALL2]], ptr [[AF]], align 428 29 return 0;30 // CHECK-NEXT ret i32 031}32 33 // CHECK-LABEL: define linkonce_odr noundef float @_Z5addAFIfET_S0_S0_(float noundef {{.*}}, float noundef {{.*}})34 // CHECK: [[A:%.*]] = alloca float, align 435 // CHECK-NEXT: [[B:%.*]] = alloca float, align 436 // CHECK-NEXT: store float {{.*}}, ptr [[A]], align 437 // CHECK-NEXT: store float {{.*}}, ptr [[B]], align 438 // CHECK-NEXT: [[Z1:%.*]] = load float, ptr [[A]], align 439 // CHECK-NEXT: [[Z2:%.*]] = load float, ptr [[B]], align 440 // CHECK-NEXT: [[ADD:%.*]] = fadd reassoc float [[Z1]], [[Z2]]41 // CHECK-NEXT: [[RES:%.*]] = call reassoc float @llvm.arithmetic.fence.f32(float [[ADD]])42 // CHECK: ret float [[RES]]43