diff options
Diffstat (limited to 'gcc/dojump.c')
| -rw-r--r-- | gcc/dojump.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/gcc/dojump.c b/gcc/dojump.c index e506684f41d..bcb575c36a1 100644 --- a/gcc/dojump.c +++ b/gcc/dojump.c @@ -689,9 +689,10 @@ do_jump_by_parts_equality_rtx (rtx op0, rtx if_false_label, rtx if_true_label) } /* Generate code for a comparison of OP0 and OP1 with rtx code CODE. - (including code to compute the values to be compared) - and set (CC0) according to the result. - The decision as to signed or unsigned comparison must be made by the caller. + MODE is the machine mode of the comparison, not of the result. + (including code to compute the values to be compared) and set CC0 + according to the result. The decision as to signed or unsigned + comparison must be made by the caller. We force a stack adjustment unless there are currently things pushed on the stack that aren't yet used. @@ -725,17 +726,21 @@ compare_from_rtx (rtx op0, rtx op1, enum rtx_code code, int unsignedp, do_pending_stack_adjust (); code = unsignedp ? unsigned_condition (code) : code; - if (0 != (tem = simplify_relational_operation (code, mode, VOIDmode, - op0, op1))) + tem = simplify_relational_operation (code, VOIDmode, mode, op0, op1); + if (tem) { if (CONSTANT_P (tem)) return tem; - code = GET_CODE (tem); - mode = GET_MODE (tem); - op0 = XEXP (tem, 0); - op1 = XEXP (tem, 1); - unsignedp = (code == GTU || code == LTU || code == GEU || code == LEU); + if (COMPARISON_P (tem)) + { + code = GET_CODE (tem); + op0 = XEXP (tem, 0); + op1 = XEXP (tem, 1); + mode = GET_MODE (op0); + unsignedp = (code == GTU || code == LTU + || code == GEU || code == LEU); + } } emit_cmp_insn (op0, op1, code, size, mode, unsignedp); |