[clang] [clang] Better bitfield access units (PR #65742)
YunQiang Su via cfe-commits
cfe-commits at lists.llvm.org
Wed Feb 21 23:04:01 PST 2024
================
@@ -132,6 +132,7 @@ class LLVM_LIBRARY_VISIBILITY LoongArch64TargetInfo
: LoongArchTargetInfo(Triple, Opts) {
LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
IntMaxType = Int64Type = SignedLong;
+ HasCheapUnalignedBitfieldAccess = true;
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wzssyqa wrote:
> > Only set it to true when -mno-unaligned-access.
>
> In `LoongArchTargetInfo::handleTargetFeatures()`, we can handle the feature `-ual`.
Maybe it's true, while you may need it if you need to build a generic kernel image for both microarchitectures.
https://github.com/llvm/llvm-project/pull/65742
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