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bpf: Enable 32-bit subregister support for -mattr=+alu32 

After all those preparation patches, now we could enable 32-bit subregister
support once -mattr=+alu32 specified.

Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Reviewed-by: Yonghong Song <yhs@fb.com>
llvm-svn: 325989
This commit is contained in:
Yonghong Song 2018-02-23 23:49:30 +00:00
parent fcd1e0f625
commit ca31c3bb3f
1 changed files with 2 additions and 0 deletions
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llvm/lib/Target/BPF/BPFISelLowering.cpp
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@ -57,6 +57,8 @@ BPFTargetLowering::BPFTargetLowering(const TargetMachine &TM,
// Set up the register classes.
addRegisterClass(MVT::i64, &BPF::GPRRegClass);
if (STI.getHasAlu32())
addRegisterClass(MVT::i32, &BPF::GPR32RegClass);
// Compute derived properties from the register classes
computeRegisterProperties(STI.getRegisterInfo());