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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.dg/pr40501.c | |
| download | cbb-gcc-4.6.4-upstream.tar.bz2 cbb-gcc-4.6.4-upstream.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/pr40501.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr40501.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr40501.c b/gcc/testsuite/gcc.dg/pr40501.c new file mode 100644 index 000000000..0e43e63c6 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr40501.c @@ -0,0 +1,24 @@ +/* { dg-do compile { target alpha*-*-* ia64*-*-* x86_64-*-* s390x-*-* } } */ +/* { dg-options "-O2" } */ +/* { dg-require-effective-target lp64 } */ + +/* PR middle-end/40501 */ + +/* This once failed due to the bswap pass missing to add the type + casts of the signed argument and result to the proper unsigned + types. */ + +typedef long int int64_t; + +int64_t +swap64 (int64_t n) +{ + return (((n & (((int64_t) 0xff) )) << 56) | + ((n & (((int64_t) 0xff) << 8)) << 40) | + ((n & (((int64_t) 0xff) << 16)) << 24) | + ((n & (((int64_t) 0xff) << 24)) << 8) | + ((n & (((int64_t) 0xff) << 32)) >> 8) | + ((n & (((int64_t) 0xff) << 40)) >> 24) | + ((n & (((int64_t) 0xff) << 48)) >> 40) | + ((n & (((int64_t) 0xff) << 56)) >> 56)); +} |