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| author | Roger Sayle <roger@nextmovesoftware.com> | 2024-07-18 08:27:36 +0100 |
|---|---|---|
| committer | Roger Sayle <roger@nextmovesoftware.com> | 2024-07-18 08:30:31 +0100 |
| commit | 030186cabe8128e752619e101768cf8823a42c38 (patch) | |
| tree | 1b3e6a45de0e56da9163a648a17d63050f8fe902 /gcc/cp/tree.cc | |
| parent | 0231b076dc98eb02e3289b21ace1757782e3917b (diff) | |
| download | gcc-030186cabe8128e752619e101768cf8823a42c38.zip gcc-030186cabe8128e752619e101768cf8823a42c38.tar.gz gcc-030186cabe8128e752619e101768cf8823a42c38.tar.bz2 | |
Implement a -ftrapping-math/-fsignaling-nans TODO in match.pd.
I've been investigating some (float)i == CST optimizations for match.pd,
and noticed there's already a TODO comment in match.pd that's relatively
easy to implement. When CST is a NaN, we only need to worry about
exceptions with flag_trapping_math, and equality/inequality tests for
sNaN only behave differently to qNaN with -fsignaling-nans. These
issues are related to PR 57371 and PR 106805 in bugzilla.
2024-07-18 Roger Sayle <roger@nextmovesoftware.com>
gcc/ChangeLog
* match.pd ((FTYPE) N CMP CST): Only worry about exceptions with
flag_trapping_math, and about signaling NaNs with HONOR_SNANS.
gcc/testsuite/ChangeLog
* c-c++-common/pr57371-4.c: Update comment.
* c-c++-common/pr57371-5.c: Add missing testcases from pr57371-4.c
and update for -fno-signaling-nans -fno-trapping-math.
Diffstat (limited to 'gcc/cp/tree.cc')
0 files changed, 0 insertions, 0 deletions