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| author | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2021-02-12 02:57:26 +0100 |
|---|---|---|
| committer | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2021-02-18 12:36:46 -0600 |
| commit | e57bd1ff4fb65208cb3060b62e1c48aa0aac623f (patch) | |
| tree | 4b2aac52d3c09b5aa0a8c702d0ea88128ca710ac /libcxx/src/filesystem/operations.cpp | |
| parent | bb260b1ca7d51869e140212aa543f53dfcf01a1b (diff) | |
| download | llvm-e57bd1ff4fb65208cb3060b62e1c48aa0aac623f.zip llvm-e57bd1ff4fb65208cb3060b62e1c48aa0aac623f.tar.gz llvm-e57bd1ff4fb65208cb3060b62e1c48aa0aac623f.tar.bz2 | |
[CFE, SystemZ] New target hook testFPKind() for checks of FP values.
The recent commit 00a6254 "Stop traping on sNaN in builtin_isnan" changed the
lowering in constrained FP mode of builtin_isnan from an FP comparison to
integer operations to avoid trapping.
SystemZ has a special instruction "Test Data Class" which is the preferred
way to do this check. This patch adds a new target hook "testFPKind()" that
lets SystemZ emit the s390_tdc intrinsic instead.
testFPKind() takes the BuiltinID as an argument and is expected to soon
handle more opcodes than just 'builtin_isnan'.
Review: Thomas Preud'homme, Ulrich Weigand
Differential Revision: https://reviews.llvm.org/D96568
Diffstat (limited to 'libcxx/src/filesystem/operations.cpp')
0 files changed, 0 insertions, 0 deletions