Index: gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c |
diff --git a/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c b/gcc/testsuite/gcc.target/i386/patch-functions-sibling-call.c |
new file mode 100644 |
index 0000000..847a95c |
--- /dev/null |
+++ b/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); |
+} |