diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c new file mode 100644 index 000000000..847a95ce6 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c @@ -0,0 +1,26 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target lp64 } */ +/* -O2 forces a sibling call. */ +/* { dg-options "-O2 -mpatch-functions-for-instrumentation" } */ + +/* { dg-final { scan-assembler ".byte\t0xeb,0x09(.*).byte\t0x90" } } */ + +/* Checks correct nop-bytes are generated just before a sibling call. */ +/* { dg-final { scan-assembler ".byte\t0xeb,0x09(.*).byte\t0x90(.*)jmp" } } */ + +/* Not instrumented as function has no loop and is small. */ +__attribute__ ((noinline)) +int foo(int n) +{ + int x = 0; + return n + 10; +} + +__attribute__ ((noinline)) +int bar(int n) +{ + /* Dummy loop. */ + while (--n) + n = n * 2; + return foo(n); +} |