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| author | Jakub Jelinek <jakub@redhat.com> | 2022-02-11 13:52:44 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-02-11 13:52:44 +0100 |
| commit | 84993d94e13ad2ab3aee151bb5a5e767cf75d51e (patch) | |
| tree | 63393b62cb2ff535bad7f56e8184b17c380a59b3 /gcc/c-family/c-attribs.cc | |
| parent | fb76c0ad35f96505ecd9213849ebc3df6163a0f7 (diff) | |
| download | gcc-84993d94e13ad2ab3aee151bb5a5e767cf75d51e.zip gcc-84993d94e13ad2ab3aee151bb5a5e767cf75d51e.tar.gz gcc-84993d94e13ad2ab3aee151bb5a5e767cf75d51e.tar.bz2 | |
c++: Fix up constant expression __builtin_convertvector folding [PR104472]
The following testcase ICEs, because due to the -frounding-math
fold_const_call fails, which is it returns NULL, and returning NULL from
cxx_eval* is wrong, all the callers rely on them to either return folded
value or original with *non_constant_p = true.
The following patch does that, and additionally falls through into the
default case where there is diagnostics for the !ctx->quiet case too.
2022-02-11 Jakub Jelinek <jakub@redhat.com>
PR c++/104472
* constexpr.cc (cxx_eval_internal_function) <case IFN_VEC_CONVERT>:
Only return fold_const_call result if it is non-NULL. Otherwise
fall through into the default: case to return t, set *non_constant_p
and emit diagnostics if needed.
* g++.dg/cpp0x/constexpr-104472.C: New test.
Diffstat (limited to 'gcc/c-family/c-attribs.cc')
0 files changed, 0 insertions, 0 deletions