diff options
| author | Tom Wood <wood@gnu.org> | 1992-08-13 20:48:40 +0000 |
|---|---|---|
| committer | Tom Wood <wood@gnu.org> | 1992-08-13 20:48:40 +0000 |
| commit | e5ed215546e9bdc14a4ae1b537822ecfd6a708b6 (patch) | |
| tree | 5c1d07cc562a6f05d21ca675d3fd34694d62658f | |
| parent | e913669934c6399060a41e6c0d82b559b6b99c53 (diff) | |
| download | gcc-e5ed215546e9bdc14a4ae1b537822ecfd6a708b6.zip gcc-e5ed215546e9bdc14a4ae1b537822ecfd6a708b6.tar.gz gcc-e5ed215546e9bdc14a4ae1b537822ecfd6a708b6.tar.bz2 | |
(regclass): Don't scan the constraints if there aren't any operands.
(regclass): Don't scan the constraints if there aren't
any operands. Don't look for a commutative constraint in the last
operand.
From-SVN: r1813
| -rw-r--r-- | gcc/regclass.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index 6c6e029..cb88cf8 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -561,7 +561,8 @@ regclass (f, nregs) { decode_asm_operands (PATTERN (insn), recog_operand, NULL_PTR, constraints, modes); - nalternatives = n_occurrences (',', constraints[0]) + 1; + nalternatives = (noperands == 0 ? 0 + : n_occurrences (',', constraints[0]) + 1); } else { @@ -733,7 +734,7 @@ regclass (f, nregs) second operand is a constant since that is the case for which the constraints should have been written. */ - for (i = 0; i < noperands; i++) + for (i = 0; i < noperands - 1; i++) if (constraints[i][0] == '%' && ! CONSTANT_P (recog_operand[i+1])) { |