https://github.com/llvmbot created https://github.com/llvm/llvm-project/pull/80578
resolves llvm/llvm-project#80577 >From bb71add47cd69b184b0fe1b72bd44e8a36a74367 Mon Sep 17 00:00:00 2001 From: wanglei <wang...@loongson.cn> Date: Fri, 26 Jan 2024 10:24:07 +0800 Subject: [PATCH] [LoongArch] Fixing the incorrect return value of LoongArchTTIImpl::getRegisterBitWidth (#79441) When we do not enable vector features, we should return the default value (`TargetTransformInfoImplBase::getRegisterBitWidth`) instead of zero. This should fix the LoongArch [buildbot breakage](https://lab.llvm.org/staging/#/builders/5/builds/486) from #78943. (cherry picked from commit 1e9924c1f248bbddcb95d82a59708d617297dad3) --- .../Target/LoongArch/LoongArchTargetTransformInfo.cpp | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/llvm/lib/Target/LoongArch/LoongArchTargetTransformInfo.cpp b/llvm/lib/Target/LoongArch/LoongArchTargetTransformInfo.cpp index 04349aa52b540..d47dded9ea6ec 100644 --- a/llvm/lib/Target/LoongArch/LoongArchTargetTransformInfo.cpp +++ b/llvm/lib/Target/LoongArch/LoongArchTargetTransformInfo.cpp @@ -21,17 +21,20 @@ using namespace llvm; TypeSize LoongArchTTIImpl::getRegisterBitWidth( TargetTransformInfo::RegisterKind K) const { + TypeSize DefSize = TargetTransformInfoImplBase::getRegisterBitWidth(K); switch (K) { case TargetTransformInfo::RGK_Scalar: return TypeSize::getFixed(ST->is64Bit() ? 64 : 32); case TargetTransformInfo::RGK_FixedWidthVector: - if (ST->hasExtLASX() && ST->hasExpAutoVec()) + if (!ST->hasExpAutoVec()) + return DefSize; + if (ST->hasExtLASX()) return TypeSize::getFixed(256); - if (ST->hasExtLSX() && ST->hasExpAutoVec()) + if (ST->hasExtLSX()) return TypeSize::getFixed(128); - return TypeSize::getFixed(0); + [[fallthrough]]; case TargetTransformInfo::RGK_ScalableVector: - return TypeSize::getScalable(0); + return DefSize; } llvm_unreachable("Unsupported register kind"); _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
