Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/stack-check-10.c @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/stack-check-10.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,41 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fstack-clash-protection -fdump-rtl-pro_and_epilogue -fno-optimize-sibling-calls --param stack-clash-protection-probe-interval=12 --param stack-clash-protection-guard-size=12" } */ +/* { dg-require-effective-target supports_stack_clash_protection } */ + +int f (int *); + +int +g (int a) +{ + return f (&a); +} + +int f1 (void); +int f2 (int); + +int +f3 (void) +{ + return f2 (f1 ()); +} + + +/* If we have caller implicit probes, then we should not need probes in either callee. + Else callees may need probes, particularly if non-leaf functions require a + frame/frame pointer. */ +/* { dg-final { scan-rtl-dump-times "Stack clash no probe" 2 "pro_and_epilogue" { target caller_implicit_probes } } } */ +/* { dg-final { scan-rtl-dump-times "Stack clash inline probe" 1 "pro_and_epilogue" { target { ! caller_implicit_probes } } } } */ +/* { dg-final { scan-rtl-dump-times "Stack clash no probe" 1 "pro_and_epilogue" { target { ! caller_implicit_probes } } } } */ + +/* Neither of these functions are a nonreturn function. */ +/* { dg-final { scan-rtl-dump-times "Stack clash not noreturn" 2 "pro_and_epilogue" } } */ + +/* If the callee realigns the stack or has a mandatory frame, then both functions + have a residual allocation. Else just g() has a residual allocation. */ +/* { dg-final { scan-rtl-dump-times "Stack clash residual allocation in prologue" 2 "pro_and_epilogue" } } */ + + +/* If the target has frame pointers for non-leafs, then both functions will + need a frame pointer. Otherwise neither should. */ +/* { dg-final { scan-rtl-dump-times "Stack clash no frame pointer needed" 2 "pro_and_epilogue" { target { ! frame_pointer_for_non_leaf } } } } */ +/* { dg-final { scan-rtl-dump-times "Stack clash frame pointer needed" 2 "pro_and_epilogue" { target { frame_pointer_for_non_leaf } } } } */