diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/memset-pr70308-1a.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/memset-pr70308-1a.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/memset-pr70308-1a.c b/gcc/testsuite/gcc.target/i386/memset-pr70308-1a.c new file mode 100644 index 0000000..5cc4eee --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/memset-pr70308-1a.c @@ -0,0 +1,46 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=x86-64 -fasynchronous-unwind-tables -fdwarf2-cfi-asm" } */ +/* Keep labels and directives ('.cfi_startproc', '.cfi_endproc'). */ +/* { dg-final { check-function-bodies "**" "" "" { target lp64 } {^\t?\.} } } */ + +/* +**foo: +**.LFB[0-9]+: +** .cfi_startproc +** subq \$16, %rsp +** .cfi_def_cfa_offset 24 +** pxor %xmm0, %xmm0 +** movaps %xmm0, -120\(%rsp\) +** movaps %xmm0, -104\(%rsp\) +** movaps %xmm0, -88\(%rsp\) +** movaps %xmm0, -72\(%rsp\) +** movaps %xmm0, -56\(%rsp\) +** movaps %xmm0, -40\(%rsp\) +** movaps %xmm0, -24\(%rsp\) +** movaps %xmm0, -8\(%rsp\) +** xorl %eax, %eax +** addq \$16, %rsp +** .cfi_def_cfa_offset 8 +** ret +**... +*/ + +extern int scanf (const char *, ...); +extern void *memset (void *, int, __SIZE_TYPE__); + +int +foo (void) +{ + char buf[128]; + +#if USE_SCANF + if (scanf("%s", buf) != 1) + return 42; +#endif + + memset (buf,0, sizeof (buf)); + asm volatile("": : :"memory"); + return 0; +} + +/* { dg-final { scan-assembler-not "rep stos" } } */ |