diff options
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/reload1.c | 5 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5b2f0f0..ed09c30 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -9,6 +9,9 @@ (web_main): Call it. (union_defs): Don't try to recognize match_dups. + * reload1.c (eliminate_regs_in_insn): Don't restore an operand + if doing so would replace the entire pattern. + 2010-04-09 Uros Bizjak <ubizjak@gmail.com> PR target/43707 diff --git a/gcc/reload1.c b/gcc/reload1.c index 02fef2d..bd590cb 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -3557,7 +3557,10 @@ eliminate_regs_in_insn (rtx insn, int replace) { /* 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]]; } |