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| author | Craig Topper <craig.topper@sifive.com> | 2025-08-26 23:05:41 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-08-26 23:05:41 -0700 |
| commit | 5e587b1b15feccf70a950d17ad37e3c361a9f198 (patch) | |
| tree | a467f979d00d01c41d7456e9766d20f05ce1b417 /llvm/lib/CodeGen/MachineInstrBundle.cpp | |
| parent | de99aabed6664b16e5bc30edd27680a9b7ae0dd3 (diff) | |
| download | llvm-5e587b1b15feccf70a950d17ad37e3c361a9f198.zip llvm-5e587b1b15feccf70a950d17ad37e3c361a9f198.tar.gz llvm-5e587b1b15feccf70a950d17ad37e3c361a9f198.tar.bz2 | |
[RISCV] Lower (setugt X, 2047) as (setne (srl X, 11), 0) (#155541)
This matches 4095 and other pow2-1 constants larger simm12. We normally
do this through a DAGCombine controlled by isLegalICmpImmediate. 2047 is
considered a legal immediate because we have a setult instruction. In
this case we have setugt which isn't natively supported.
I added tests for 4095 for comparison.
Diffstat (limited to 'llvm/lib/CodeGen/MachineInstrBundle.cpp')
0 files changed, 0 insertions, 0 deletions