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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/execute/floatunsisf-1.c | |
| download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/floatunsisf-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/floatunsisf-1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/floatunsisf-1.c b/gcc/testsuite/gcc.c-torture/execute/floatunsisf-1.c new file mode 100644 index 000000000..cc4c49bbe --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/floatunsisf-1.c @@ -0,0 +1,21 @@ +/* The fp-bit.c function __floatunsisf had a latent bug where guard bits + could be lost leading to incorrect rounding. */ +/* Origin: Joseph Myers <joseph@codesourcery.com> */ + +extern void abort (void); +extern void exit (int); +#if __INT_MAX__ >= 0x7fffffff +volatile unsigned u = 0x80000081; +#else +volatile unsigned long u = 0x80000081; +#endif +volatile float f1, f2; +int +main (void) +{ + f1 = (float) u; + f2 = (float) 0x80000081; + if (f1 != f2) + abort (); + exit (0); +} |