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| author | Craig Topper <craig.topper@sifive.com> | 2022-06-20 20:20:00 -0700 |
|---|---|---|
| committer | Craig Topper <craig.topper@sifive.com> | 2022-06-20 20:46:06 -0700 |
| commit | 59cde2133d8f2488171404c3e1a8fc302f0249c3 (patch) | |
| tree | 38c17696843704f704d2ed4b871370fb2bae7824 /clang/lib/CodeGen/CodeGenModule.cpp | |
| parent | 163c77b2e0831853b59cdd24ece9637f8a19cc79 (diff) | |
| download | llvm-59cde2133d8f2488171404c3e1a8fc302f0249c3.zip llvm-59cde2133d8f2488171404c3e1a8fc302f0249c3.tar.gz llvm-59cde2133d8f2488171404c3e1a8fc302f0249c3.tar.bz2 | |
Recommit "[RISCV] Enable subregister liveness tracking for RVV."
The failure that caused the previous revert has been fixed
by https://reviews.llvm.org/D126048
Original commit message:
RVV makes heavy use of subregisters due to LMUL>1 and segment
load/store tuples. Enabling subregister liveness tracking improves the quality
of the register allocation.
I've added a command line that can be used to turn it off if it causes compile
time or functional issues. I used the command line to keep the old behavior
for one interesting test case that was testing register allocation.
Reviewed By: kito-cheng
Differential Revision: https://reviews.llvm.org/D128016
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions