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2010-11-24 Richard Sandiford <richard.sandiford@linaro.org>
Launchpad #618684
Backport from mainline:
2010-04-10 Bernd Schmidt <bernds@codesourcery.com>
* reload1.c (eliminate_regs_in_insn): Don't restore an operand
if doing so would replace the entire pattern.
=== modified file 'gcc/reload1.c'
--- old/gcc/reload1.c 2010-10-04 00:50:43 +0000
+++ new/gcc/reload1.c 2010-11-24 13:40:23 +0000
@@ -3567,7 +3567,10 @@
{
/* Restore the old body. */
for (i = 0; i < recog_data.n_operands; i++)
- *recog_data.operand_loc[i] = orig_operand[i];
+ /* Restoring a top-level match_parallel would clobber the new_body
+ we installed in the insn. */
+ if (recog_data.operand_loc[i] != &PATTERN (insn))
+ *recog_data.operand_loc[i] = orig_operand[i];
for (i = 0; i < recog_data.n_dups; i++)
*recog_data.dup_loc[i] = orig_operand[(int) recog_data.dup_num[i]];
}
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