| // Test that the GCC fast-math floating point flags get lowered to the correct |
| // permutation of Clang frontend flags. This is non-trivial for a few reasons. |
| // First, the GCC flags have many different and surprising effects. Second, |
| // LLVM only supports three switches which is more coarse grained than GCC's |
| // support. |
| // |
| // RUN: %clang -### -fno-honor-infinities -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-INFS %s |
| // CHECK-NO-INFS: "-cc1" |
| // CHECK-NO-INFS: "-menable-no-infs" |
| // |
| // RUN: %clang -### -fno-honor-nans -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NANS %s |
| // CHECK-NO-NANS: "-cc1" |
| // CHECK-NO-NANS: "-menable-no-nans" |
| // |
| // RUN: %clang -### -fmath-errno -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-MATH-ERRNO %s |
| // CHECK-MATH-ERRNO: "-cc1" |
| // CHECK-MATH-ERRNO: "-fmath-errno" |
| // |
| // RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \ |
| // RUN: -fno-trapping-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-UNSAFE-MATH %s |
| // CHECK-UNSAFE-MATH: "-cc1" |
| // CHECK-UNSAFE-MATH: "-menable-unsafe-fp-math" |
| // |
| // Check that various umbrella flags also enable these frontend options. |
| // RUN: %clang -### -ffast-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-INFS %s |
| // RUN: %clang -### -ffast-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NANS %s |
| // RUN: %clang -### -ffast-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-UNSAFE-MATH %s |
| // RUN: %clang -### -ffinite-math-only -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-INFS %s |
| // RUN: %clang -### -ffinite-math-only -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NANS %s |
| // RUN: %clang -### -funsafe-math-optimizations -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-UNSAFE-MATH %s |
| // |
| // One umbrella flag is *really* weird and also changes the semantics of the |
| // program by adding a special preprocessor macro. Check that the frontend flag |
| // modeling this semantic change is provided. Also check that the semantic |
| // impact remains even if every optimization is disabled. |
| // RUN: %clang -### -ffast-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-FAST-MATH %s |
| // RUN: %clang -### -ffast-math -fno-finite-math-only \ |
| // RUN: -fno-unsafe-math-optimizations -fmath-errno -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-FAST-MATH %s |
| // CHECK-FAST-MATH: "-cc1" |
| // CHECK-FAST-MATH: "-ffast-math" |
| // |
| // Check various means of disabling these flags, including disabling them after |
| // they've been enabled via an umbrella flag. |
| // RUN: %clang -### -fno-honor-infinities -fhonor-infinities -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-INFS %s |
| // RUN: %clang -### -ffinite-math-only -fhonor-infinities -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-INFS %s |
| // RUN: %clang -### -ffinite-math-only -fno-finite-math-only -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-INFS %s |
| // RUN: %clang -### -ffast-math -fhonor-infinities -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-INFS %s |
| // RUN: %clang -### -ffast-math -fno-finite-math-only -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-INFS %s |
| // CHECK-NO-NO-INFS: "-cc1" |
| // CHECK-NO-NO-INFS-NOT: "-menable-no-infs" |
| // CHECK-NO-NO-INFS: "-o" |
| // |
| // RUN: %clang -### -fno-honor-nans -fhonor-nans -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-NANS %s |
| // RUN: %clang -### -ffinite-math-only -fhonor-nans -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-NANS %s |
| // RUN: %clang -### -ffinite-math-only -fno-finite-math-only -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-NANS %s |
| // RUN: %clang -### -ffast-math -fhonor-nans -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-NANS %s |
| // RUN: %clang -### -ffast-math -fno-finite-math-only -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-NO-NANS %s |
| // CHECK-NO-NO-NANS: "-cc1" |
| // CHECK-NO-NO-NANS-NOT: "-menable-no-nans" |
| // CHECK-NO-NO-NANS: "-o" |
| // |
| // RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \ |
| // RUN: -fno-trapping-math -fno-associative-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \ |
| // RUN: -fno-trapping-math -fno-reciprocal-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \ |
| // RUN: -fno-trapping-math -fsigned-zeros -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -fassociative-math -freciprocal-math -fno-signed-zeros \ |
| // RUN: -fno-trapping-math -ftrapping-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -funsafe-math-optimizations -fno-associative-math -c %s \ |
| // RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -funsafe-math-optimizations -fno-reciprocal-math -c %s \ |
| // RUN: 2>&1 | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -funsafe-math-optimizations -fsigned-zeros -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -funsafe-math-optimizations -ftrapping-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -funsafe-math-optimizations -fno-unsafe-math-optimizations \ |
| // RUN: -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -ffast-math -fno-associative-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -ffast-math -fno-reciprocal-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -ffast-math -fsigned-zeros -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -ffast-math -ftrapping-math -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // RUN: %clang -### -ffast-math -fno-unsafe-math-optimizations -c %s 2>&1 \ |
| // RUN: | FileCheck --check-prefix=CHECK-NO-UNSAFE-MATH %s |
| // CHECK-NO-UNSAFE-MATH: "-cc1" |
| // CHECK-NO-UNSAFE-MATH-NOT: "-menable-unsafe-fp-math" |
| // CHECK-NO-UNSAFE-MATH: "-o" |
