| commit | 5820ad92456dfb68bd964fb2bfa0fa783a5b99fe | |
| author | Piyou Chen <piyou.chen@sifive.com> | |
| Sun, 28 Apr 2024 09:10:19 +0000 (28 17:10 +0800) | ||
| committer | GitHub <noreply@github.com> | |
| Sun, 28 Apr 2024 09:10:19 +0000 (28 17:10 +0800) | ||
| tree | 26b085335089d562fa62fdb3b3d10951ef49f932 | treesnapshot (tar.gz zip) |
| parent | 487967af82053cd08022635a2ff768385d936c80 | commitdiff |
[NFC][RISCV] Keep AVLReg define instr inside VSETVLInfo (#89180)
Currently, the vsetvli pass tracks the define instruction through
`MRI->getVRegDef` due to the SSA form.
This patch keeps the AVLReg DefMI within VSETVLInfo during construction.
And replace `MRI->getVRegDef(AVLReg)` with `getAVLRegDefMI()`.
This information is useful when vsetvli pass live in post-ra situation.
The testcases don't change because the VReg always has a unique def in
SSA.
Currently, the vsetvli pass tracks the define instruction through
`MRI->getVRegDef` due to the SSA form.
This patch keeps the AVLReg DefMI within VSETVLInfo during construction.
And replace `MRI->getVRegDef(AVLReg)` with `getAVLRegDefMI()`.
This information is useful when vsetvli pass live in post-ra situation.
The testcases don't change because the VReg always has a unique def in
SSA.
| llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp | diffblobblamehistory |