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| author | Chad Rosier <mcrosier@apple.com> | 2013-04-24 18:09:54 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@apple.com> | 2013-04-24 18:09:54 +0000 |
| commit | b82e117e4af1062b9f0d1aab89abf4aa804558f1 (patch) | |
| tree | ad3bdc95ab05fc861302f79fa849457aa15dd2df /test | |
| parent | 0127b3f60b5bf7b8caed8426b8bd77c4a019a286 (diff) | |
[driver] Improve the implementation of the -Ofast option.
Specifically, allow the flags that fall under this umbrella (i.e., -O3,
-ffast-math, and -fstrict-aliasing) to be overridden/disabled with the
individual -O[0|1|2|s|z]/-fno- flags.
This also fixes the handling of various floating point optimization
flags that are modified by -ffast-math (and thus -Ofast as well).
Part of rdar://13622687
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180204 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Driver/Ofast.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Driver/Ofast.c b/test/Driver/Ofast.c new file mode 100644 index 0000000000..bceeb8f5fe --- /dev/null +++ b/test/Driver/Ofast.c @@ -0,0 +1,20 @@ +// RUN: %clang -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s +// RUN: %clang -fno-fast-math -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s +// RUN: %clang -fno-strict-aliasing -Ofast -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST %s +// RUN: %clang -Ofast -fno-fast-math -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-NO-FAST-MATH %s +// RUN: %clang -Ofast -fno-strict-aliasing -### %s 2>&1 | FileCheck -check-prefix=CHECK-OFAST-NO-STRICT-ALIASING %s + +// CHECK-OFAST: -cc1 +// CHECK-OFAST-NOT: -relaxed-aliasing +// CHECK-OFAST: -ffast-math +// CHECK-OFAST: -Ofast + +// CHECK-OFAST-NO-FAST-MATH: -cc1 +// CHECK-OFAST-NO-FAST-MATH-NOT: -relaxed-aliasing +// CHECK-OFAST-NO-FAST-MATH-NOT: -ffast-math +// CHECK-OFAST-NO-FAST-MATH: -Ofast + +// CHECK-OFAST-NO-STRICT-ALIASING: -cc1 +// CHECK-OFAST-NO-STRICT-ALIASING: -relaxed-aliasing +// CHECK-OFAST-NO-STRICT-ALIASING: -ffast-math +// CHECK-OFAST-NO-STRICT-ALIASING: -Ofast |