From: Roger Sayle <roger@eyesopen.com>
Date: Wed, 16 Jul 2003 19:36:38 +0000 (+0000)
Subject: combine.c (subst): Also handle (subreg (const_double ...)) case if created by a subst... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cc8c96fd6d398dd6013198715b0880af2d8769d8;p=gcc.git

combine.c (subst): Also handle (subreg (const_double ...)) case if created by a substitution...


	* combine.c (subst): Also handle (subreg (const_double ...)) case
	if created by a substitution, by using the original inner mode.

From-SVN: r69476
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ba9356f6e6c..de703097ecf 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-07-16  Roger Sayle  <roger@eyesopen.com>
+
+	* combine.c (subst): Also handle (subreg (const_double ...)) case
+	if created by a substitution, by using the original inner mode.
+
 2003-07-16  Roger Sayle  <roger@eyesopen.com>
 
 	* simplify-rtx.c (simplify_replace_rtx): Convert constant comparisons
diff --git a/gcc/combine.c b/gcc/combine.c
index 3c3172b0835..5a752014873 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -3476,7 +3476,9 @@ subst (rtx x, rtx from, rtx to, int in_dest, int unique_copy)
 	      if (GET_CODE (new) == CLOBBER && XEXP (new, 0) == const0_rtx)
 		return new;
 
-	      if (GET_CODE (new) == CONST_INT && GET_CODE (x) == SUBREG)
+	      if (GET_CODE (x) == SUBREG
+		  && (GET_CODE (new) == CONST_INT
+		      || GET_CODE (new) == CONST_DOUBLE))
 		{
 		  enum machine_mode mode = GET_MODE (x);