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riscv-gcc-1
Commit a7c5971a by Richard Kenner
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(compare_from_rtx): Allow simplify_relational_operation to fail. 

From-SVN: r3204
parent 1b6f3c1c
Showing with 6 additions and 3 deletions
gcc/expr.c
...@@ -7109,11 +7109,13 @@ compare_from_rtx (op0, op1, code, unsignedp, mode, size, align) ...@@ -7109,11 +7109,13 @@ compare_from_rtx (op0, op1, code, unsignedp, mode, size, align)
rtx size; rtx size;
int align; int align;
{ {
rtx tem;
/* If one operand is constant, make it the second one. */ /* If one operand is constant, make it the second one. */
if (GET_CODE (op0) == CONST_INT || GET_CODE (op0) == CONST_DOUBLE) if (GET_CODE (op0) == CONST_INT || GET_CODE (op0) == CONST_DOUBLE)
{ {
rtx tem = op0; tem = op0;
op0 = op1; op0 = op1;
op1 = tem; op1 = tem;
code = swap_condition (code); code = swap_condition (code);
...@@ -7127,8 +7129,9 @@ compare_from_rtx (op0, op1, code, unsignedp, mode, size, align) ...@@ -7127,8 +7129,9 @@ compare_from_rtx (op0, op1, code, unsignedp, mode, size, align)
do_pending_stack_adjust (); do_pending_stack_adjust ();
if (GET_CODE (op0) == CONST_INT && GET_CODE (op1) == CONST_INT) if (GET_CODE (op0) == CONST_INT && GET_CODE (op1) == CONST_INT
return simplify_relational_operation (code, mode, op0, op1); && (tem = simplify_relational_operation (code, mode, op0, op1)) != 0)
return tem;
#if 0 #if 0
/* There's no need to do this now that combine.c can eliminate lots of /* There's no need to do this now that combine.c can eliminate lots of
......
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