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| author | Nemanja Ivanovic <nemanja.i.ibm@gmail.com> | 2018-02-16 14:49:01 +0000 |
|---|---|---|
| committer | Nemanja Ivanovic <nemanja.i.ibm@gmail.com> | 2018-02-16 14:49:01 +0000 |
| commit | 6cf41b028d5deaee192d8e9195af2b9a80dea3ed (patch) | |
| tree | d7965ffd04a4c18138be76c9b5fd0ce2d004eaf7 /llvm/lib/Target/PowerPC | |
| parent | e44533b7f1014e17a87ae2e5e75fae8a2e0228fd (diff) | |
| download | bcm5719-llvm-6cf41b028d5deaee192d8e9195af2b9a80dea3ed.tar.gz bcm5719-llvm-6cf41b028d5deaee192d8e9195af2b9a80dea3ed.zip | |
[PowerPC] Fix transform in table gen file causing UB
Running a bootstrap build with UBSan produces a number of instances where
we have signed integer overflow due to this transform. Change the type to
long to prevent this UB on 64-bit build machines.
llvm-svn: 325347
Diffstat (limited to 'llvm/lib/Target/PowerPC')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCInstrInfo.td | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td index 43dcc4479cf..d51a0e508ce 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td +++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td @@ -308,7 +308,7 @@ def HI16 : SDNodeXForm<imm, [{ def HA16 : SDNodeXForm<imm, [{ // Transformation function: shift the immediate value down into the low bits. - int Val = N->getZExtValue(); + long Val = N->getZExtValue(); return getI32Imm((Val - (signed short)Val) >> 16, SDLoc(N)); }]>; def MB : SDNodeXForm<imm, [{ |
