From 52a75c3c22a68d2acdbdf6e2e5070b1f424bfc81 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sun, 6 Feb 2000 02:56:56 -0800 Subject: 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 --- gcc/simplify-rtx.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'gcc/simplify-rtx.c') 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 -- cgit v1.1