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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-02-08 06:14:53 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-02-08 06:14:53 +0000 |
| commit | da7c4ba1af98430eb16468d2cf211473a3be175e (patch) | |
| tree | f42101a97dc688acefcbd411a1f0b8e50cbd9007 /llvm/lib/Target/PowerPC/PPCInstrInfo.cpp | |
| parent | 5bc1712940fb7b88aae6ba46766567c9c886a1f8 (diff) | |
| download | bcm5719-llvm-da7c4ba1af98430eb16468d2cf211473a3be175e.tar.gz bcm5719-llvm-da7c4ba1af98430eb16468d2cf211473a3be175e.zip | |
Implement the agreed resolution to DR1457: a signed left shift of a 1 bit into
the sign bit doesn't have undefined behavior, but a signed left shift of a 1 bit
out of the sign bit still does. As promised to Howard :)
The suppression of the potential constant expression checking in system headers
is also removed, since the problem it was working around is gone.
llvm-svn: 150059
Diffstat (limited to 'llvm/lib/Target/PowerPC/PPCInstrInfo.cpp')
0 files changed, 0 insertions, 0 deletions
