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| author | Richard Stallman <rms@gnu.org> | 1992-09-27 03:28:28 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1992-09-27 03:28:28 +0000 |
| commit | 0ba846c771eba2229f64fc22b3bf86ceb70e4557 (patch) | |
| tree | 04ad294e6a5342b8564bd37c4afae06a405777ff | |
| parent | 4a5d0fb5959a5dd39e1fcf765de5912dfb2febd8 (diff) | |
| download | gcc-0ba846c771eba2229f64fc22b3bf86ceb70e4557.zip gcc-0ba846c771eba2229f64fc22b3bf86ceb70e4557.tar.gz gcc-0ba846c771eba2229f64fc22b3bf86ceb70e4557.tar.bz2 | |
(eliminate_regs_in_insn): If recognition fails on modified insn,
go ahead and modify just the same.
From-SVN: r2258
| -rw-r--r-- | gcc/reload1.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 42dedca..2d6b43b 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -2988,20 +2988,22 @@ eliminate_regs_in_insn (insn, replace) if (new_body != old_body) { /* If we had a move insn but now we don't, rerecognize it. */ - if (GET_CODE (old_body) == SET && GET_CODE (SET_SRC (old_body)) == REG - && (GET_CODE (new_body) != SET - || GET_CODE (SET_SRC (new_body)) != REG)) + if ((GET_CODE (old_body) == SET && GET_CODE (SET_SRC (old_body)) == REG + && (GET_CODE (new_body) != SET + || GET_CODE (SET_SRC (new_body)) != REG)) + /* If this was an add insn before, rerecognize. */ + || + (GET_CODE (old_body) == SET + && GET_CODE (SET_SRC (old_body)) == PLUS)) { if (! validate_change (insn, &PATTERN (insn), new_body, 0)) - abort (); + /* If recognition fails, store the new body anyway. + It's normal to have recognition failures here + due to bizarre memory addresses; reloading will fix them. */ + PATTERN (insn) = new_body; } - /* If this was not a move insn, rerecognize. */ - else if (GET_CODE (old_body) != SET - || GET_CODE (SET_SRC (old_body)) != PLUS - || ! validate_change (insn, &PATTERN (insn), new_body, 0)) + else PATTERN (insn) = new_body; - /* ??? Is it really correct to store the new body anyway - if validate_change fails? Shouldn't this abort instead? */ if (replace && REG_NOTES (insn)) REG_NOTES (insn) = eliminate_regs (REG_NOTES (insn), 0, NULL_RTX); |