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Reland "[X86] Assign AVX10_1 feature priority to align with gcc. (#94557)" #94734

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Merged
merged 1 commit into from
Jun 11, 2024
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Reland "[X86] Assign AVX10_1 feature priority to align with gcc. (#94557)" #94734

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4 changes: 2 additions & 2 deletions llvm/include/llvm/TargetParser/X86TargetParser.def
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Original file line number Diff line number Diff line change
Expand Up @@ -250,8 +250,8 @@ X86_FEATURE_COMPAT(SHA512, "sha512", 0)
X86_FEATURE_COMPAT(SM4, "sm4", 0)
X86_FEATURE (EGPR, "egpr")
X86_FEATURE_COMPAT(USERMSR, "usermsr", 0)
X86_FEATURE_COMPAT(AVX10_1, "avx10.1-256", 0)
X86_FEATURE_COMPAT(AVX10_1_512, "avx10.1-512", 0)
X86_FEATURE_COMPAT(AVX10_1, "avx10.1-256", 36)
X86_FEATURE_COMPAT(AVX10_1_512, "avx10.1-512", 37)
// These features aren't really CPU features, but the frontend can set them.
X86_FEATURE (RETPOLINE_EXTERNAL_THUNK, "retpoline-external-thunk")
X86_FEATURE (RETPOLINE_INDIRECT_BRANCHES, "retpoline-indirect-branches")
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4 changes: 2 additions & 2 deletions llvm/lib/TargetParser/X86TargetParser.cpp
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Expand Up @@ -748,13 +748,13 @@ unsigned llvm::X86::getFeaturePriority(ProcessorFeatures Feat) {
#ifndef NDEBUG
// Check that priorities are set properly in the .def file. We expect that
// "compat" features are assigned non-duplicate consecutive priorities
// starting from one (1, ..., 35) and multiple zeros.
// starting from one (1, ..., 37) and multiple zeros.
#define X86_FEATURE_COMPAT(ENUM, STR, PRIORITY) PRIORITY,
unsigned Priorities[] = {
#include "llvm/TargetParser/X86TargetParser.def"
};
std::array<unsigned, std::size(Priorities)> HelperList;
const size_t MaxPriority = 35;
const size_t MaxPriority = 37;
std::iota(HelperList.begin(), HelperList.begin() + MaxPriority + 1, 0);
for (size_t i = MaxPriority + 1; i != std::size(Priorities); ++i)
HelperList[i] = 0;
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