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| author | Sanjay Patel <spatel@rotateright.com> | 2015-01-23 16:40:50 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2015-01-23 16:40:50 +0000 |
| commit | 76c9e0986c42bd789f8734106a86c144f2b5e14c (patch) | |
| tree | ef6d6a0882acfa200c46b841329c519524945579 /clang/test/Driver/fast-math.c | |
| parent | 6ee521c7eb8b58b5b1faf471bf03da434440bcf0 (diff) | |
| download | bcm5719-llvm-76c9e0986c42bd789f8734106a86c144f2b5e14c.tar.gz bcm5719-llvm-76c9e0986c42bd789f8734106a86c144f2b5e14c.zip | |
Process the -fno-signed-zeros optimization flag (PR20870)
The driver currently accepts but ignores the -fno-signed-zeros flag.
This patch passes the flag through and enables 'nsz' fast-math-flag
generation in IR.
The existing OpenCL flag for the same functionality is made into an
alias here. It may be removed in a subsequent patch.
This should resolve bug 20870 ( http://llvm.org/bugs/show_bug.cgi?id=20870 );
patches for the optimizer were checked in at:
http://llvm.org/viewvc/llvm-project?view=revision&revision=225050
http://llvm.org/viewvc/llvm-project?view=revision&revision=224583
Differential Revision: http://reviews.llvm.org/D6873
llvm-svn: 226915
Diffstat (limited to 'clang/test/Driver/fast-math.c')
| -rw-r--r-- | clang/test/Driver/fast-math.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/clang/test/Driver/fast-math.c b/clang/test/Driver/fast-math.c index 690d7a1e6ef..bacd7fe4cbb 100644 --- a/clang/test/Driver/fast-math.c +++ b/clang/test/Driver/fast-math.c @@ -25,6 +25,21 @@ // CHECK-NO-INFS-NO-FAST-MATH: "-cc1" // CHECK-NO-INFS-NO-FAST-MATH-NOT: "-menable-no-infs" // +// RUN: %clang -### -fno-signed-zeros -c %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-NO-SIGNED-ZEROS %s +// CHECK-NO-SIGNED-ZEROS: "-cc1" +// CHECK-NO-SIGNED-ZEROS: "-fno-signed-zeros" +// +// RUN: %clang -### -fno-fast-math -fno-signed-zeros -c %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-NO-FAST-MATH-NO-SIGNED-ZEROS %s +// CHECK-NO-FAST-MATH-NO-SIGNED-ZEROS: "-cc1" +// CHECK-NO-FAST-MATH-NO-SIGNED-ZEROS: "-fno-signed-zeros" +// +// RUN: %clang -### -fno-signed-zeros -fno-fast-math -c %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-NO-SIGNED-ZEROS-NO-FAST-MATH %s +// CHECK-NO-SIGNED-ZEROS-NO-FAST-MATH: "-cc1" +// CHECK-NO-SIGNED-ZEROS-NO-FAST-MATH-NOT: "-fno-signed-zeros" +// // RUN: %clang -### -fno-honor-nans -c %s 2>&1 \ // RUN: | FileCheck --check-prefix=CHECK-NO-NANS %s // CHECK-NO-NANS: "-cc1" |
