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re PR c/8639 (simple integer arithmetic expression broken) 

PR c/8639
        * fold-const.c (extract_muldiv): Don't propagate division unless
        both arguments are multiples of C.

From-SVN: r59471
This commit is contained in:
Christian Ehrhardt 2002-11-25 22:41:58 +00:00 committed by Richard Henderson
parent 2d339de623
commit 42370c15bb
2 changed files with 10 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-11-25 Christian Ehrhardt <ehrhardt@mathematik.uni-ulm.de>
PR c/8639
* fold-const.c (extract_muldiv): Don't propagate division unless
both arguments are multiples of C.
2002-11-24  Eric Botcazou  <ebotcazou@libertysurf.fr>
PR optimization/8275

8
gcc/fold-const.c
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@ -4617,10 +4617,10 @@ extract_muldiv (t, c, code, wide_type)
t2 = extract_muldiv (op1, c, code, wide_type);
if (t1 != 0 && t2 != 0
&& (code == MULT_EXPR
/* If not multiplication, we can only do this if either operand
is divisible by c. */
|| multiple_of_p (ctype, op0, c)
|| multiple_of_p (ctype, op1, c)))
/* If not multiplication, we can only do this if both operands
are divisible by c. */
|| (multiple_of_p (ctype, op0, c)
&& multiple_of_p (ctype, op1, c))))
return fold (build (tcode, ctype, convert (ctype, t1),
convert (ctype, t2)));