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| author | Richard Henderson <rth@gcc.gnu.org> | 2000-02-06 02:56:56 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2000-02-06 02:56:56 -0800 |
| commit | 52a75c3c22a68d2acdbdf6e2e5070b1f424bfc81 (patch) | |
| tree | db6ecb99832a88e5633e916992cbab50ca441beb /gcc/simplify-rtx.c | |
| parent | b027470f4234f042f2a736ee5e830f3b20acadca (diff) | |
| download | gcc-52a75c3c22a68d2acdbdf6e2e5070b1f424bfc81.zip gcc-52a75c3c22a68d2acdbdf6e2e5070b1f424bfc81.tar.gz gcc-52a75c3c22a68d2acdbdf6e2e5070b1f424bfc81.tar.bz2 | |
simplify-rtx.c (simplify_relational_operation): Canonicalize constant to op1 for testing.
* simplify-rtx.c (simplify_relational_operation): Canonicalize
constant to op1 for testing.
From-SVN: r31825
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 12d1d8c..c02248e 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1591,6 +1591,14 @@ simplify_relational_operation (code, mode, op0, op1) ) return 0; + /* Make sure the constant is second. */ + if ((CONSTANT_P (op0) && ! CONSTANT_P (op1)) + || (GET_CODE (op0) == CONST_INT && GET_CODE (op1) != CONST_INT)) + { + tem = op0, op0 = op1, op1 = tem; + code = swap_condition (code); + } + /* For integer comparisons of A and B maybe we can simplify A - B and can then simplify a comparison of that with zero. If A and B are both either a register or a CONST_INT, this can't help; testing for these cases will |