[Bug rtl-optimization/56732] ICE in advance_target_bb

[gretay at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56732



--- Comment #6 from gretay at gcc dot gnu.org 2013-05-01 17:32:14 UTC ---

Thanks for the small testcase! There is indeed a problem with rtl epilogue

generated for naked functions. Here is a fix, testing in progress.



diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c

index 464d91c..9d4a453 100644

--- a/gcc/config/arm/arm.c

+++ b/gcc/config/arm/arm.c

@@ -24067,7 +24067,8 @@ arm_expand_epilogue (bool really_return)

   if (IS_NAKED (func_type)

       || (IS_VOLATILE (func_type) && TARGET_ABORT_NORETURN))

     {

-      emit_jump_insn (simple_return_rtx);

+      if (really_return)

+        emit_jump_insn (simple_return_rtx);

       return;

     }