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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2009-08-09 18:38:04 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2009-08-09 18:38:04 +0000 |
| commit | f517845606b6b8290b52f2068775a9325eceff6b (patch) | |
| tree | 4f384af8342874e6f72150b4b11a160bb03fa4be /gcc/tree-ssa-ifcombine.c | |
| parent | 8f048d2f21ea75e65fe9000cd9f7c1cfbbb7788a (diff) | |
| download | gcc-f517845606b6b8290b52f2068775a9325eceff6b.zip gcc-f517845606b6b8290b52f2068775a9325eceff6b.tar.gz gcc-f517845606b6b8290b52f2068775a9325eceff6b.tar.bz2 | |
c-common.c (c_fully_fold_internal): Issue a warning if a binary operation overflows.
gcc/
* c-common.c (c_fully_fold_internal): Issue a warning if a binary
operation overflows. Likewise non-cast unary arithmetic.
If one arm of a conditional expression is always taken,
inhibit evaluation warnings for the other arm. Likewise inhibit
evaluation warnings for the second && or || operand if the first
operand is enough to determine the result.
* c-typeck.c (build_conditional_expr): Apply the same inhibition
rules here.
(build_binary_op): Prevent duplicate evaluation warnings.
gcc/testsuite/
* gcc.dg/overflow-warn-8.c: New test.
From-SVN: r150594
Diffstat (limited to 'gcc/tree-ssa-ifcombine.c')
0 files changed, 0 insertions, 0 deletions