| /* { dg-do compile } */ |
| /* { dg-require-effective-target lp64 } */ |
| /* { dg-options "-O3 -mpatch-functions-for-instrumentation -mno-patch-functions-main-always" } */ |
| |
| /* Functions which have the always_patch attribute should be patched no matter |
| what. Check that there are nop-bytes at the beginning and end of the |
| function. We add -O3 so that the compiler will try to inline foo (but it |
| will be blocked by the attribute). */ |
| |
| /* { dg-final { scan-assembler ".byte\t0xeb,0x09(.*).byte\t0x90" } } */ |
| /* { dg-final { scan-assembler "ret(.*).byte\t0x90(.*).byte\t0x90" } } */ |
| |
| __attribute__ ((always_patch_for_instrumentation)) |
| static int foo () { |
| return 3; |
| } |
| |
| int main () { |
| volatile int x = foo (); |
| } |
