From: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Date: Mon, 30 Jul 2012 15:46:08 +0000 (+0000)
Subject: re PR middle-end/53823 (FAIL: gcc.c-torture/execute/930921-1.c execution at -O0 and... 
X-Git-Tag: releases/gcc-4.8.0~4215
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=caf624554c8dd1bc1bf582a9ff38dec033fba5b3;p=thirdparty%2Fgcc.git

re PR middle-end/53823 (FAIL: gcc.c-torture/execute/930921-1.c execution at -O0 and -O1)

	PR middle-end/53823
	* expmed.c (expand_mult): Skip synth_mult for constant double op1 except
	for special cases.  Don't initialize coeff and is_neg.

From-SVN: r189980
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2b5385f4e524..3b26c17ff82c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2012-07-30  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	PR middle-end/53823
+	* expmed.c (expand_mult): Skip synth_mult for constant double op1 except
+	for special cases.  Don't initialize coeff and is_neg.
+
 2012-07-30  Ulrich Weigand  <ulrich.weigand@linaro.org>
 	    Richard Earnshaw  <rearnsha@arm.com>
 
diff --git a/gcc/expmed.c b/gcc/expmed.c
index 9743fc05ee78..1fe003444f85 100644
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -3176,8 +3176,8 @@ expand_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
   if (INTEGRAL_MODE_P (mode))
     {
       rtx fake_reg;
-      HOST_WIDE_INT coeff = 0;
-      bool is_neg = false;
+      HOST_WIDE_INT coeff;
+      bool is_neg;
       int mode_bitsize;
 
       if (op1 == CONST0_RTX (mode))
@@ -3230,6 +3230,8 @@ expand_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
 		}
 	      goto skip_synth;
 	    }
+	  else
+	    goto skip_synth;
 	}
       else
 	goto skip_synth;