From: Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
Date: Wed, 18 Mar 1998 13:41:50 +0000 (+0000)
Subject: expr.c (expand_expr, [...]): If have conditional move, don't use ORIGINAL_TARGET... 
X-Git-Tag: prereleases/egcs-1.1-prerelease~2055
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7c00d1fe83e896e59dd6f445f0da11232ba0803f;p=thirdparty%2Fgcc.git

expr.c (expand_expr, [...]): If have conditional move, don't use ORIGINAL_TARGET unless REG.

Wed Mar 18 13:42:01 1998  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
        * expr.c (expand_expr, case COND_EXPR): If have conditional move,
        don't use ORIGINAL_TARGET unless REG.

From-SVN: r18671
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d90f217ff693..dd4f83cf2aff 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Wed Mar 18 13:42:01 1998  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+	* expr.c (expand_expr, case COND_EXPR): If have conditional move,
+	don't use ORIGINAL_TARGET unless REG.
+
 Wed Mar 18 16:53:19 1998  J"orn Rennecke <amylaar@cygnus.co.uk>
 
 	* netbsd.h (ASM_OUTPUT_ALIGN): Redefine.
diff --git a/gcc/expr.c b/gcc/expr.c
index 8edc49ea338f..178f4f1e1ad0 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -6765,6 +6765,11 @@ expand_expr (exp, target, tmode, modifier)
 			 && REGNO (original_target) >= FIRST_PSEUDO_REGISTER
 			 && original_target == var_rtx (singleton)))
 		 && GET_MODE (original_target) == mode
+#ifdef HAVE_conditional_move
+		 && (! can_conditionally_move_p (mode)
+		     || GET_CODE (original_target) == REG
+		     || TREE_ADDRESSABLE (type))
+#endif
 		 && ! (GET_CODE (original_target) == MEM
 		       && MEM_VOLATILE_P (original_target)))
 	  temp = original_target;