From: Jeffrey A Law <law@cygnus.com>
Date: Mon, 17 Nov 1997 06:51:20 +0000 (+0000)
Subject: cse.c (cse_insn): Don't look at JUMP_LABEL field of a conditionl return.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=85c3ba60dd713e3efc0f7d65fe25e2ebf4771d86;p=gcc.git

cse.c (cse_insn): Don't look at JUMP_LABEL field of a conditionl return.

        * cse.c (cse_insn): Don't look at JUMP_LABEL field of a conditionl
        return.
        (cse_end_of_basic_block): Similarly.

From-SVN: r16534
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c99a44d06fc..ab3fad66b17 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+Sun Nov 16 23:52:48 1997  Jeffrey A Law  (law@cygnus.com)
+
+	* cse.c (cse_insn): Don't look at JUMP_LABEL field of a conditionl
+	return.
+	(cse_end_of_basic_block): Similarly.
+ 
 Sun Nov 16 23:01:40 1997  J. Kean Johnston  <jkj@sco.com>
 
 	* i386/sco5.h (ASM_OUTPUT_ALIGNED_BSS): Define.
diff --git a/gcc/cse.c b/gcc/cse.c
index 5ab24441deb..1f5504ae04b 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -7062,7 +7062,8 @@ cse_insn (insn, in_libcall_block)
 	  NOTE_SOURCE_FILE (insn) = 0;
 	  cse_jumps_altered = 1;
 	  /* One less use of the label this insn used to jump to.  */
-	  --LABEL_NUSES (JUMP_LABEL (insn));
+	  if (JUMP_LABEL (insn) != 0)
+	    --LABEL_NUSES (JUMP_LABEL (insn));
 	  /* No more processing for this set.  */
 	  sets[i].rtl = 0;
 	}
@@ -8095,6 +8096,7 @@ cse_end_of_basic_block (insn, data, follow_jumps, after_loop, skip_blocks)
 	       && GET_CODE (p) == JUMP_INSN
       	       && GET_CODE (PATTERN (p)) == SET
 	       && GET_CODE (SET_SRC (PATTERN (p))) == IF_THEN_ELSE
+	       && JUMP_LABEL (p) != 0
 	       && LABEL_NUSES (JUMP_LABEL (p)) == 1
 	       && NEXT_INSN (JUMP_LABEL (p)) != 0)
 	{