From: amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 13 May 2005 13:34:17 +0000 (+0000)
Subject: 	PR rtl-optimization/20756:
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=4b8784dc6196a68be5fc99cfbee99a6af08a0414

	PR rtl-optimization/20756:
	* basic-block.h (PROP_DEAD_INSN): Define.
	* flow.c (propagate_one_insn): Set during mark_set_regs call
	for a dead insn.
	(mark_set_1): Emit a clobber when we are about to delete a dead insn
	that kills a live register.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99657 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index 4a71d2515b6..5565053337a 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -806,6 +806,8 @@ enum update_life_extent
 #define PROP_SCAN_DEAD_STORES	128	/* Scan for dead code.  */
 #define PROP_ASM_SCAN		256	/* Internal flag used within flow.c
 					   to flag analysis of asms.  */
+#define PROP_DEAD_INSN		1024	/* Internal flag used within flow.c
+					   to flag analysis of dead insn.  */
 #define PROP_FINAL		(PROP_DEATH_NOTES | PROP_LOG_LINKS  \
 				 | PROP_REG_INFO | PROP_KILL_DEAD_CODE  \
 				 | PROP_SCAN_DEAD_CODE | PROP_AUTOINC \