diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-8.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-8.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-8.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-8.c new file mode 100644 index 000000000..436379cb2 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/patch-functions-8.c @@ -0,0 +1,29 @@ +/* Verify -mpatch-functions-for-instrumentation works. */ +/* { dg-do run } */ +/* { dg-require-effective-target lp64 } */ + +/* -O2 forces a sibling call for foo from bar. */ +/* { dg-options "-O2 -mpatch-functions-for-instrumentation --param function-patch-min-instructions=0" } */ + +__attribute__ ((noinline)) +int foo() +{ + /* Dummy loop. */ + int x = 10; + int y = 100; + while (--x) + ++y; + return y; +} + +__attribute__ ((noinline)) +int bar() +{ + return foo(); +} + +int main() +{ + bar(); + return 0; +} |