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riscv-gcc-1
Commit f9011d04 by Richard Kenner
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Install proper change 

From-SVN: r30715
parent 59adecfa
Showing with 3 additions and 2 deletions
gcc/fold-const.c
...@@ -4367,14 +4367,15 @@ extract_muldiv (t, c, code, wide_type) ...@@ -4367,14 +4367,15 @@ extract_muldiv (t, c, code, wide_type)
if (t1 != 0 && t2 != 0) if (t1 != 0 && t2 != 0)
return fold (build (tcode, ctype, convert (ctype, t1), return fold (build (tcode, ctype, convert (ctype, t1),
convert (ctype, t2))); convert (ctype, t2)));
else if (TREE_CODE (op1) != INTEGER_CST)
break;
/* If this was a subtraction, negate OP1 and set it to be an addition. /* If this was a subtraction, negate OP1 and set it to be an addition.
This simplifies the logic below. */ This simplifies the logic below. */
if (tcode == MINUS_EXPR) if (tcode == MINUS_EXPR)
tcode = PLUS_EXPR, op1 = negate_expr (op1); tcode = PLUS_EXPR, op1 = negate_expr (op1);
if (TREE_CODE (op1) != INTEGER_CST)
break;
/* If either OP1 or C are negative, this optimization is not safe for /* If either OP1 or C are negative, this optimization is not safe for
some of the division and remainder types while for others we need some of the division and remainder types while for others we need
to change the code. */ to change the code. */
......
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