Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/pr46212.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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/* PR rtl-optimization/46212 */ /* { dg-do compile } */ /* { dg-options "-O3 -funroll-loops" } */ /* { dg-options "-O3 -funroll-loops -march=i386" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */ /* { dg-require-effective-target int32plus } */ 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; } }