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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-02-06 10:56:56 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-02-06 10:56:56 +0000 |
| commit | 125b9253d075db53bb8365068c882452d9e948ce (patch) | |
| tree | db6ecb99832a88e5633e916992cbab50ca441beb /gcc/simplify-rtx.c | |
| parent | 2ffc1517702eabe581ff1074ca4b7715fbe9e8ee (diff) | |
| download | gcc-125b9253d075db53bb8365068c882452d9e948ce.tar.gz | |
* simplify-rtx.c (simplify_relational_operation): Canonicalize
constant to op1 for testing.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31825 138bc75d-0d04-0410-961f-82ee72b054a4
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 12d1d8c91b8..c02248e7930 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 |