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

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
94bb1a2d · John David Anglin · John David Anglin · 1a59548b · 94bb1a2d · 94bb1a2d
Commit 94bb1a2d authored Jul 07, 2005 by John David Anglin Committed by John David Anglin Jul 07, 2005
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gcc/ChangeLog
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gcc/loop.c
+1 -0

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+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

--- 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),