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| author | Tim Northover <tnorthover@apple.com> | 2016-08-19 17:17:06 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2016-08-19 17:17:06 +0000 |
| commit | 91c8173093b35392e804a7267c386d147e73979e (patch) | |
| tree | 7aecf6871f63e6a6afc21a9e3c23d9e3e896fe27 /llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp | |
| parent | 170dede75dc30599b1628e83ad45ec940b165af3 (diff) | |
| download | bcm5719-llvm-91c8173093b35392e804a7267c386d147e73979e.tar.gz bcm5719-llvm-91c8173093b35392e804a7267c386d147e73979e.zip | |
GlobalISel: support overflow arithmetic intrinsics.
Unsigned addition and subtraction can reuse the instructions created to
legalize large width operations (i.e. both produce and consume a carry flag).
Signed operations and multiplies get a dedicated op-with-overflow instruction.
Once this is produced the two values are combined into a struct register (which
will almost always be merged with a corresponding G_EXTRACT as part of
legalization).
llvm-svn: 279278
Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp')
0 files changed, 0 insertions, 0 deletions
