From: Bob Wilson <bob.wilson@acm.org>
Date: Tue, 11 Feb 2003 22:18:53 +0000 (+0000)
Subject: xtensa.md (set_frame_ptr): Change rtl to set reg a7.
X-Git-Tag: releases/gcc-3.2.3~211
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c26f81ee7518def2a05fa186eefa3ad818ab9c7;p=thirdparty%2Fgcc.git

xtensa.md (set_frame_ptr): Change rtl to set reg a7.

        * config/xtensa/xtensa.md (set_frame_ptr): Change rtl to set reg a7.
        * config/xtensa/xtensa.c (xtensa_reorg): Search for UNSPECV_SET_FP
        as a SET pattern.

From-SVN: r62737
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ece8df5528e5..0bb53a754ec0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2003-02-11  Bob Wilson  <bob.wilson@acm.org>
+
+	Backport following patch:
+
+	2003-02-11  Bob Wilson  <bob.wilson@acm.org>
+
+	* config/xtensa/xtensa.md (set_frame_ptr): Change rtl to set reg a7.
+	* config/xtensa/xtensa.c (xtensa_reorg): Search for UNSPECV_SET_FP
+	as a SET pattern.
+	
 2003-02-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
             Christian Ehrhardt  <ehrhardt@mathematik.uni-ulm.de>
 
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 6beb6745626e..40d914f45c9a 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -2245,8 +2245,9 @@ xtensa_reorg (first)
 	continue;
 
       pat = PATTERN (insn);
-      if (GET_CODE (pat) == UNSPEC_VOLATILE
-	  && (XINT (pat, 1) == UNSPECV_SET_FP))
+      if (GET_CODE (pat) == SET
+	  && GET_CODE (SET_SRC (pat)) == UNSPEC_VOLATILE
+	  && (XINT (SET_SRC (pat), 1) == UNSPECV_SET_FP))
 	{
 	  set_frame_ptr_insn = insn;
 	  break;
diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
index b0cf9a1724ff..55bfd0b8377f 100644
--- a/gcc/config/xtensa/xtensa.md
+++ b/gcc/config/xtensa/xtensa.md
@@ -2392,7 +2392,7 @@
 ;; to set up the frame pointer.
 
 (define_insn "set_frame_ptr"
-  [(unspec_volatile [(const_int 0)] UNSPECV_SET_FP)]
+  [(set (reg:SI A7_REG) (unspec_volatile [(const_int 0)] UNSPECV_SET_FP))]
   ""
   "*
 {
@@ -2406,7 +2406,7 @@
 
 ;; Post-reload splitter to remove fp assignment when it's not needed.
 (define_split
-  [(unspec_volatile [(const_int 0)] UNSPECV_SET_FP)]
+  [(set (reg:SI A7_REG) (unspec_volatile [(const_int 0)] UNSPECV_SET_FP))]
   "reload_completed && !frame_pointer_needed"
   [(unspec [(const_int 0)] UNSPEC_NOP)]
   "")