diff options
Diffstat (limited to 'gcc-4.8/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c')
| -rw-r--r-- | gcc-4.8/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c b/gcc-4.8/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c new file mode 100644 index 000000000..0f5bd561d --- /dev/null +++ b/gcc-4.8/gcc/testsuite/gcc.target/i386/pr11001-memcpy-3.c @@ -0,0 +1,23 @@ +/* Ensure that we don't use 'rep movX' in the presence of register globals. */ +/* { dg-do compile } */ +/* { dg-options "-Os -w" } */ + +extern void *memcpy (void *, const void *, __SIZE_TYPE__); + +register int regvar asm("%ecx"); + +int foo[10]; +int bar[10]; + +char baz[15]; +char quux[15]; + +void +do_copy () +{ + memcpy (foo, bar, sizeof foo); + memcpy (baz, quux, sizeof baz); +} + +/* { dg-final { scan-assembler-not "rep movsl" } } */ +/* { dg-final { scan-assembler-not "rep movsb" } } */ |