diff options
| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-11-16 17:15:23 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-11-16 17:15:23 +0000 |
| commit | f2e0dda3066e3d34f0c5424885bf4b1e5591fd81 (patch) | |
| tree | 6894347795260dbf98ccdad4e02632f18f90f9e7 /gcc/testsuite/gcc.dg/fold-overflow-1.c | |
| parent | 363d487eb26583d7e66b35d055543cf7e3348dd9 (diff) | |
| download | gcc-f2e0dda3066e3d34f0c5424885bf4b1e5591fd81.tar.gz | |
* fold-const.c (const_binop): Don't constant fold the operation
if the result has overflowed and flag_trapping_math.
* simplify-rtx.c (simplify_const_binary_operation): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@107092 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/fold-overflow-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/fold-overflow-1.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-overflow-1.c b/gcc/testsuite/gcc.dg/fold-overflow-1.c new file mode 100644 index 00000000000..2dd2188f870 --- /dev/null +++ b/gcc/testsuite/gcc.dg/fold-overflow-1.c @@ -0,0 +1,18 @@ +/* { dg-compile } */ +/* { dg-options "-O -ftrapping-math" } */ + +float f1 = __FLT_MAX__ + __FLT_MAX__; + +float foo1(void) +{ + return __FLT_MAX__ + __FLT_MAX__; +} + +float f2 = 1.0f/0.0f; + +float foo2(void) +{ + return 1.0f/0.0f; +} + +/* { dg-final { scan-assembler-times "2139095040" 2 } } */ |