From: Mark Mitchell <mark@codesourcery.com>
Date: Sun, 16 Mar 2003 20:13:36 +0000 (+0000)
Subject: re PR rtl-optimization/9016 (Failure to consistently constant fold "constant" C+... 
X-Git-Tag: releases/gcc-3.4.0~7880
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=ddc67067146f2783f386e61f880d6fe87fb324a3;p=thirdparty%2Fgcc.git

re PR rtl-optimization/9016 (Failure to consistently constant fold "constant" C++ objects)

	PR optimization/9016
	* config/i386/i386.c (ix86_expand_move): Force more CONST_DOUBLEs
	into the constant pool.

From-SVN: r64445
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d7d2eb465618..9fee3589340c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2003-03-14  Mark Mitchell  <mark@codesourcery.com>
+
+	PR optimization/9016
+	* config/i386/i386.c (ix86_expand_move): Force more CONST_DOUBLEs
+	into the constant pool.
+
 2003-03-16  Falk Hueffner  <falk.hueffner@student.uni-tuebingen.de>
 
 	PR target/9164
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index ae2f118215ec..2dddfb7f8773 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -8373,9 +8373,17 @@ ix86_expand_move (mode, operands)
 
 	  if (strict)
 	    ;
-	  else if (GET_CODE (op1) == CONST_DOUBLE
-		   && register_operand (op0, mode))
-	    op1 = validize_mem (force_const_mem (mode, op1));
+	  else if (GET_CODE (op1) == CONST_DOUBLE)
+	    {
+	      op1 = validize_mem (force_const_mem (mode, op1));
+	      if (!register_operand (op0, mode))
+		{
+		  rtx temp = gen_reg_rtx (mode);
+		  emit_insn (gen_rtx_SET (VOIDmode, temp, op1));
+		  emit_move_insn (op0, temp);
+		  return;
+		}
+	    }
 	}
     }