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| author | Jeff Law <law@redhat.com> | 2020-11-05 20:42:17 -0700 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 2020-11-05 20:46:00 -0700 |
| commit | 32ee472864ada44ef05b2a3b087b8ce413bee282 (patch) | |
| tree | 058c571d79ef476500b22795e764f3cce62c755d /gcc/fortran/module.c | |
| parent | 6483f05989ef31ebf2583deeb4753211ca2b7e17 (diff) | |
| download | gcc-32ee472864ada44ef05b2a3b087b8ce413bee282.zip gcc-32ee472864ada44ef05b2a3b087b8ce413bee282.tar.gz gcc-32ee472864ada44ef05b2a3b087b8ce413bee282.tar.bz2 | |
Improve overflow check
Convert
x < (short) ((unsigned short)x + const)
to
x <= SHORT_MAX – const
(and similarly for other integral types) if const is not 0.
gcc/
PR tree-optimization/97223
* match.pd (overflow detection and optimization): Handle conversions.
gcc/testsuite/
* gcc.dg/no-strict-overflow-4.c: Adjust expected output.
Diffstat (limited to 'gcc/fortran/module.c')
0 files changed, 0 insertions, 0 deletions