* haifa-sched.c (haifa_classify_insn): TRAP_IF is risky.

	(sched_analyze_2): Allow scheduling TRAP_IF.
	* reorg.c (mark_referenced_resources): Examine operands of TRAP_IF.
	* rtl.h (TRAP_CODE): New macro.
	* rtl.def (TRAP_IF): Change second operand type to rtx.
	* optabs.c (gen_cond_trap): New function.
	(init_traps): New function.
	(init_optabs): Call init_traps.
	* expr.h: Declare gen_cond_trap.
	* jump.c (jump_optimize): Optimize jumps to and around traps.
	* sparc.md: Define trap instructions.
	* rs6000.md: Define trap instructions.
	* rs6000.c (print_operand): New code 'V' for trap condition.
	(trap_comparison_operator): New function.
	* m88k.md: Update use of TRAP_IF.
	* tree.h (enum built_in_function): New function code BUILT_IN_TRAP.
	* c-decl.c (init_decl_processing): New builtin __builtin_trap.
	* expr.c (expand_builtin): Handle BUILT_IN_TRAP.
	* expr.c (expand_builtin): Error if __builtin_longjmp second argument
	is not 1.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20543 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 1 deletions

diff --git a/gcc/reorg.c b/gcc/reorg.c
index f2ee5b8884b..7370a356dc4 100644
--- a/gcc/reorg.c
+++ b/gcc/reorg.c
@@ -340,11 +340,14 @@ mark_referenced_resources (x, res, include_delayed_effects)
 
     case UNSPEC_VOLATILE:
     case ASM_INPUT:
-    case TRAP_IF:
       /* Traditional asm's are always volatile.  */
       res->volatil = 1;
       return;
 
+    case TRAP_IF:
+      res->volatil = 1;
+      break;
+
     case ASM_OPERANDS:
       res->volatil = MEM_VOLATILE_P (x);