From: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Date: Thu, 7 Jul 2005 22:53:28 +0000 (+0000)
Subject: re PR rtl-optimization/22239 (i-cobol.adb:482: error: unrecognizable insn)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=94bb1a2dc25ccda35fc21c93a2b7928b629a9b52;p=gcc.git

re PR rtl-optimization/22239 (i-cobol.adb:482: error: unrecognizable insn)

	PR middle-end/22239
	* loop.c (loop_givs_rescan): Check that v->new_reg is a REG.

From-SVN: r101742
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 128a7d2dae8..fd0abeb1f06 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-07-07  John David Anglin  <dave.anglin@nrc-crc.gc.ca>
+
+	PR middle-end/22239
+	* loop.c (loop_givs_rescan): Check that v->new_reg is a REG.
+
 2005-07-07  Khem Raj  <kraj@mvista.com>
 
 	* config/arm/arm.c (thumb_output_function_prologue): Calculate offset
diff --git a/gcc/loop.c b/gcc/loop.c
index b9b285648bc..c0e3272e6d3 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -5496,6 +5496,7 @@ loop_givs_rescan (struct loop *loop, struct iv_class *bl, rtx *reg_map)
 						  v->new_reg));
 	  else if (GET_CODE (*v->location) == PLUS
 		   && REG_P (XEXP (*v->location, 0))
+		   && REG_P (v->new_reg)
 		   && CONSTANT_P (XEXP (*v->location, 1)))
 	    loop_insn_emit_before (loop, 0, v->insn,
 				   gen_move_insn (XEXP (*v->location, 0),