| // -O2 |
| // RUN: %clang_cc1 -Wno-implicit-function-declaration \ |
| // RUN: -triple x86_64-unknown-unknown -fmath-errno -ffp-contract=on \ |
| // RUN: -fno-rounding-math -O2 -emit-llvm -o - %s \ |
| // RUN: | FileCheck %s |
| |
| // -ffast-math |
| // RUN: %clang_cc1 -Wno-implicit-function-declaration \ |
| // RUN: -triple x86_64-unknown-unknown -menable-no-infs -menable-no-nans \ |
| // RUN: -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate \ |
| // RUN: -freciprocal-math -ffp-contract=fast -fno-rounding-math -ffast-math \ |
| // RUN: -ffinite-math-only -ffast-math -emit-llvm -o - %s \ |
| // RUN: | FileCheck %s -check-prefix=FAST |
| |
| // -O0 |
| // RUN: %clang_cc1 -Wno-implicit-function-declaration \ |
| // RUN: -triple x86_64-unknown-unknown -fmath-errno -ffp-contract=on \ |
| // RUN: -fno-rounding-math -O0 \ |
| // RUN: -emit-llvm -o - %s | FileCheck %s -check-prefix=NOOPT |
| |
| #pragma float_control(precise,on) |
| float f1(float x) { |
| return sqrtf(x); |
| } |
| |
| // CHECK-LABEL: define {{.*}} float @f1 |
| // CHECK: tail call float @sqrtf(float noundef {{.*}}) #[[ATTR4_O2:[0-9]+]] |
| |
| // FAST-LABEL: define {{.*}} nofpclass(nan inf) float @f1 |
| // FAST: call nofpclass(nan inf) float @sqrtf(float noundef nofpclass(nan inf) {{.*}}) #[[ATTR3_FAST:[0-9]+]] |
| |
| // NOOPT-LABEL: define {{.*}} float @f1 |
| // NOOPT: call float @sqrtf(float noundef {{.*}}) #[[ATTR4_NOOPT:[0-9]+]] |
| |
| #pragma float_control(precise,off) |
| float f2(float x) { |
| return sqrtf(x); |
| } |
| |
| // CHECK-LABEL: define {{.*}} float @f2 |
| // CHECK: tail call fast float @llvm.sqrt.f32(float {{.*}}) |
| |
| // FAST-LABEL: define {{.*}} nofpclass(nan inf) float @f2 |
| // FAST: call fast float @llvm.sqrt.f32(float {{.*}}) |
| |
| // NOOPT-LABEL: define {{.*}} float @f2 |
| // NOOPT: call fast float @sqrtf(float {{.*}}) #[[ATTR4_NOOPT:[0-9]+]] |
| |
| __attribute__((optnone)) |
| float f3(float x) { |
| x = sqrtf(x); |
| return x; |
| } |
| |
| // CHECK-LABEL: define {{.*}} float @f3 |
| // CHECK: call float @sqrtf(float noundef {{.*}}) |
| |
| // FAST-LABEL: define {{.*}} nofpclass(nan inf) float @f3 |
| // FAST: call nofpclass(nan inf) float @sqrtf(float noundef nofpclass(nan inf) {{.*}}) #[[ATTR4_FAST:[0-9]+]] |
| |
| // NOOPT-LABEL: define {{.*}} float @f3 |
| // NOOPT: call float @sqrtf(float noundef %0) #[[ATTR4_NOOPT:[0-9]+]] |
| |
| // CHECK: [[ATTR4_O2]] = { nounwind } |
| // FAST: [[ATTR3_FAST]] = { nounwind willreturn memory(none) } |
| // NOOPT: [[ATTR4_NOOPT]] = { nounwind } |
