diff options
| author | Leonard Chan <leonardchan@google.com> | 2018-10-16 17:35:41 +0000 |
|---|---|---|
| committer | Leonard Chan <leonardchan@google.com> | 2018-10-16 17:35:41 +0000 |
| commit | 699b3b54da2f483228544234e5ed375aa81acd9f (patch) | |
| tree | 145a229fe95f4d87fbd99ae1ee8fc2e912876d04 /llvm/lib/CodeGen/TargetLoweringBase.cpp | |
| parent | d3ff1ecfde95549db960aaca4848f7436ca28431 (diff) | |
| download | llvm-699b3b54da2f483228544234e5ed375aa81acd9f.zip llvm-699b3b54da2f483228544234e5ed375aa81acd9f.tar.gz llvm-699b3b54da2f483228544234e5ed375aa81acd9f.tar.bz2 | |
[Intrinsic] Signed Saturation Addition Intrinsic
Add an intrinsic that takes 2 integers and perform saturation addition on them.
This is a part of implementing fixed point arithmetic in clang where some of
the more complex operations will be implemented as intrinsics.
Differential Revision: https://reviews.llvm.org/D53053
llvm-svn: 344629
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringBase.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetLoweringBase.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp index b785fdc..03a29a3 100644 --- a/llvm/lib/CodeGen/TargetLoweringBase.cpp +++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp @@ -608,6 +608,7 @@ void TargetLoweringBase::initActions() { setOperationAction(ISD::UMIN, VT, Expand); setOperationAction(ISD::UMAX, VT, Expand); setOperationAction(ISD::ABS, VT, Expand); + setOperationAction(ISD::SADDSAT, VT, Expand); // Overflow operations default to expand setOperationAction(ISD::SADDO, VT, Expand); |