From: Philip Blundell <philb@gnu.org>
Date: Fri, 25 Jun 2004 21:48:38 +0000 (+0000)
Subject: re PR tree-optimization/15089 (local register variable with a specified register... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6ef30017a0e7c6855a1e679f6934f65260845b5d;p=gcc.git

re PR tree-optimization/15089 (local register variable with a specified register is bad)

	PR wrong-code/15089
	* loop.c (scan_loop): Do not move user-specified register
	assignments.

From-SVN: r83684
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f015ca46904..8886dc59d52 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2004-06-25  Philip Blundell  <philb@gnu.org>
+
+	PR wrong-code/15089
+	* loop.c (scan_loop): Do not move user-specified register
+	assignments.
+	
 2004-06-25  DJ Delorie  <dj@redhat.com>
 
 	* c-common.h (warn_cast_qual, warn_missing_format_attribute,
diff --git a/gcc/loop.c b/gcc/loop.c
index aafb18c02f9..28507b37e20 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -931,6 +931,7 @@ scan_loop (struct loop *loop, int flags)
 			  || (! (REG_P (SET_SRC (set))
 				 && (REGNO (SET_SRC (set))
 				     < FIRST_PSEUDO_REGISTER))))
+		      && regno >= FIRST_PSEUDO_REGISTER 
 		      /* This test is not redundant; SET_SRC (set) might be
 			 a call-clobbered register and the life of REGNO
 			 might span a call.  */