[PATCH] Fix middle-end/35429 ICE with complex arithmetic and && or || with comparision to zero
Andrew Pinski
pinskia@gmail.com
Wed Mar 26 18:10:00 GMT 2008
Hi,
The problem here is that fold uses integer_zerop to check if an
equal or no equal expression is the integer zero but integer_zerop
also returns true for complex integer zero. Even before Richard's
patch to use build_int_cst, we were producing a BIT_IOR_EXPR of a
complex integer type which does not make sense. This patch adds a
check for integeral types for these two optimizations.
OK? Bootstrapped and tested on i686-linux-gnu with no regressions.
Thanks,
Andrew Pinski
ChangeLog:
* fold-const.c (fold_truthop): Check for integeral types when folding
a == 0 && b == 0 and
a != 0 || b != 0 .
* gcc.c-torture/compile/complex-5.c: New test.
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