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| author | Andrew MacLeod <amacleod@redhat.com> | 2021-07-28 13:14:22 -0400 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2021-07-30 15:10:48 -0400 |
| commit | ebbcdd7fae1f802763850e4afedfdfa09cf10e1a (patch) | |
| tree | cf21f2d2140b00303b24119cd93ad5190d43c009 /gcc/tree-ssa-phiopt.c | |
| parent | d242acc396d645267cd1ccbdb4d0d73cc9b1ef48 (diff) | |
| download | gcc-ebbcdd7fae1f802763850e4afedfdfa09cf10e1a.zip gcc-ebbcdd7fae1f802763850e4afedfdfa09cf10e1a.tar.gz gcc-ebbcdd7fae1f802763850e4afedfdfa09cf10e1a.tar.bz2 | |
Change integral divide by zero to produce UNDEFINED.
Instead of VARYING, we can get better results by treating divide by zero
as producing an undefined result.
gcc/
* range-op.cc (operator_div::wi_fold): Return UNDEFINED for [0, 0] divisor.
gcc/testsuite/
* gcc.dg/tree-ssa/pr61839_2.c: Adjust.
Diffstat (limited to 'gcc/tree-ssa-phiopt.c')
0 files changed, 0 insertions, 0 deletions