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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/pr46212.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.dg/pr46212.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr46212.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr46212.c b/gcc/testsuite/gcc.dg/pr46212.c new file mode 100644 index 000000000..9dbb601e0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr46212.c @@ -0,0 +1,23 @@ +/* PR rtl-optimization/46212 */ +/* { dg-do compile } */ +/* { dg-options "-O3 -funroll-loops" } */ +/* { dg-options "-O3 -funroll-loops -march=i386" { target { { i686-*-* x86_64-*-* } && ilp32 } } } */ + +static inline unsigned +foo (void *x) +{ + unsigned y = *(volatile unsigned *) (x); + return (y >> 24) | ((y >> 8) & 0xff00) | ((y & 0xff00) << 8) | (y << 24); +} + +void +bar (void *x, void *y, int z) +{ + unsigned c; + while (z--) + { + c = foo (y); + *(unsigned *) x = (c & 0xf80000) >> 9 | (c & 0xf800) >> 6 + | (c & 0xf8) >> 3 | (c & 0x80000000) >> 16; + } +} |