[clang] [llvm] [AArch64] Decouple feature dependency expansion. (PR #94279)

via cfe-commits cfe-commits at lists.llvm.org
Mon Jun 3 13:32:50 PDT 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Alexandros Lamprineas (labrinea)

<details>
<summary>Changes</summary>

The dependency expansion step which was introduced by FMV has been erroneously used for non-FMV features, for example when parsing the target attribute. The PR #<!-- -->93695 has rectified most of the tests which were relying on dependency expansion of target features specified on the -cc1 command line. In this patch I am decoupling the dependency expansion of features specified on the target attribute from FMV.

To do that first I am expanding FMV dependencies before passing the list of target features to initFeatureMap(). Similarly when parsing the target attribute I am reconstructing an ExtensionSet from the list of target features which was created during the command line option parsing. The attribute parsing may toggle bits of that ExtensionSet and at the end it is converted to a list of target features. Those are passed to initFeatureMap(), which no longer requires an override.

A side effect of this refactoring is that features specified on the target_version attribute now supersede the command line options, which is what should be happening in the first place.

---

Patch is 43.07 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/94279.diff


13 Files Affected:

- (modified) clang/include/clang/AST/ASTContext.h (-3) 
- (modified) clang/lib/AST/ASTContext.cpp (+28-25) 
- (modified) clang/lib/Basic/Targets/AArch64.cpp (+27-72) 
- (modified) clang/lib/Basic/Targets/AArch64.h (-4) 
- (modified) clang/test/CodeGen/aarch64-cpu-supports-target.c (+1-1) 
- (modified) clang/test/CodeGen/aarch64-sme-intrinsics/aarch64-sme-attrs.cpp (+1-1) 
- (modified) clang/test/CodeGen/aarch64-targetattr.c (+20-21) 
- (modified) clang/test/CodeGen/attr-target-version.c (+23-23) 
- (modified) clang/test/Sema/aarch64-neon-target.c (+2-2) 
- (modified) clang/test/Sema/builtin-cpu-supports.c (+1-1) 
- (modified) llvm/include/llvm/TargetParser/AArch64TargetParser.h (+63-42) 
- (modified) llvm/lib/Target/AArch64/AArch64Features.td (+1-1) 
- (modified) llvm/lib/TargetParser/AArch64TargetParser.cpp (+35-18) 


``````````diff
diff --git a/clang/include/clang/AST/ASTContext.h b/clang/include/clang/AST/ASTContext.h
index a1d1d1c51cd41..8bce4812f0d48 100644
--- a/clang/include/clang/AST/ASTContext.h
+++ b/clang/include/clang/AST/ASTContext.h
@@ -3203,9 +3203,6 @@ class ASTContext : public RefCountedBase<ASTContext> {
   /// valid feature names.
   ParsedTargetAttr filterFunctionTargetAttrs(const TargetAttr *TD) const;
 
-  std::vector<std::string>
-  filterFunctionTargetVersionAttrs(const TargetVersionAttr *TV) const;
-
   void getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
                              const FunctionDecl *) const;
   void getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 73d3b152c49f1..842b94b4a6833 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -87,6 +87,7 @@
 #include "llvm/Support/MD5.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/TargetParser/AArch64TargetParser.h"
 #include "llvm/TargetParser/Triple.h"
 #include <algorithm>
 #include <cassert>
@@ -13663,17 +13664,18 @@ QualType ASTContext::getCorrespondingSignedFixedPointType(QualType Ty) const {
   }
 }
 
-std::vector<std::string> ASTContext::filterFunctionTargetVersionAttrs(
-    const TargetVersionAttr *TV) const {
-  assert(TV != nullptr);
-  llvm::SmallVector<StringRef, 8> Feats;
-  std::vector<std::string> ResFeats;
-  TV->getFeatures(Feats);
-  for (auto &Feature : Feats)
-    if (Target->validateCpuSupports(Feature.str()))
-      // Use '?' to mark features that came from TargetVersion.
-      ResFeats.push_back("?" + Feature.str());
-  return ResFeats;
+// Given a list of FMV features, add each of their backend features to the list.
+static void
+getFMVBackendFeaturesFor(const llvm::SmallVectorImpl<StringRef> &FMVFeatStrings,
+                         std::vector<std::string>& BackendFeats) {
+  for (StringRef F : FMVFeatStrings) {
+    if (auto FMVExt = llvm::AArch64::parseArchExtension(F)) {
+      SmallVector<StringRef, 8> Feats;
+      FMVExt->DependentFeatures.split(Feats, ',', -1, false);
+      for (StringRef F : Feats)
+        BackendFeats.push_back(F.str());
+    }
+  }
 }
 
 ParsedTargetAttr
@@ -13708,10 +13710,12 @@ void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
 
     // Make a copy of the features as passed on the command line into the
     // beginning of the additional features from the function to override.
-    ParsedAttr.Features.insert(
-        ParsedAttr.Features.begin(),
-        Target->getTargetOpts().FeaturesAsWritten.begin(),
-        Target->getTargetOpts().FeaturesAsWritten.end());
+    // AArch64 handles command line option features in parseTargetAttr().
+    if (!Target->getTriple().isAArch64())
+      ParsedAttr.Features.insert(
+          ParsedAttr.Features.begin(),
+          Target->getTargetOpts().FeaturesAsWritten.begin(),
+          Target->getTargetOpts().FeaturesAsWritten.end());
 
     if (ParsedAttr.CPU != "" && Target->isValidCPUName(ParsedAttr.CPU))
       TargetCPU = ParsedAttr.CPU;
@@ -13734,13 +13738,9 @@ void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
   } else if (const auto *TC = FD->getAttr<TargetClonesAttr>()) {
     std::vector<std::string> Features;
     if (Target->getTriple().isAArch64()) {
-      // TargetClones for AArch64
       llvm::SmallVector<StringRef, 8> Feats;
       TC->getFeatures(Feats, GD.getMultiVersionIndex());
-      for (StringRef Feat : Feats)
-        if (Target->validateCpuSupports(Feat.str()))
-          // Use '?' to mark features that came from AArch64 TargetClones.
-          Features.push_back("?" + Feat.str());
+      getFMVBackendFeaturesFor(Feats, Features);
       Features.insert(Features.begin(),
                       Target->getTargetOpts().FeaturesAsWritten.begin(),
                       Target->getTargetOpts().FeaturesAsWritten.end());
@@ -13753,11 +13753,14 @@ void ASTContext::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
     }
     Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, Features);
   } else if (const auto *TV = FD->getAttr<TargetVersionAttr>()) {
-    std::vector<std::string> Feats = filterFunctionTargetVersionAttrs(TV);
-    Feats.insert(Feats.begin(),
-                 Target->getTargetOpts().FeaturesAsWritten.begin(),
-                 Target->getTargetOpts().FeaturesAsWritten.end());
-    Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, Feats);
+    llvm::SmallVector<StringRef, 8> Feats;
+    TV->getFeatures(Feats);
+    std::vector<std::string> Features;
+    getFMVBackendFeaturesFor(Feats, Features);
+    Features.insert(Features.begin(),
+                    Target->getTargetOpts().FeaturesAsWritten.begin(),
+                    Target->getTargetOpts().FeaturesAsWritten.end());
+    Target->initFeatureMap(FeatureMap, getDiagnostics(), TargetCPU, Features);
   } else {
     FeatureMap = Target->getTargetOpts().FeatureMap;
   }
diff --git a/clang/lib/Basic/Targets/AArch64.cpp b/clang/lib/Basic/Targets/AArch64.cpp
index 5db1ce78c657f..d8bb4fa3a3b49 100644
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -1050,51 +1050,6 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
   return true;
 }
 
-bool AArch64TargetInfo::initFeatureMap(
-    llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
-    const std::vector<std::string> &FeaturesVec) const {
-  std::vector<std::string> UpdatedFeaturesVec;
-  // Parse the CPU and add any implied features.
-  std::optional<llvm::AArch64::CpuInfo> CpuInfo = llvm::AArch64::parseCpu(CPU);
-  if (CpuInfo) {
-    auto Exts = CpuInfo->getImpliedExtensions();
-    std::vector<StringRef> CPUFeats;
-    llvm::AArch64::getExtensionFeatures(Exts, CPUFeats);
-    for (auto F : CPUFeats) {
-      assert((F[0] == '+' || F[0] == '-') && "Expected +/- in target feature!");
-      UpdatedFeaturesVec.push_back(F.str());
-    }
-  }
-
-  // Process target and dependent features. This is done in two loops collecting
-  // them into UpdatedFeaturesVec: first to add dependent '+'features, second to
-  // add target '+/-'features that can later disable some of features added on
-  // the first loop. Function Multi Versioning features begin with '?'.
-  for (const auto &Feature : FeaturesVec)
-    if (((Feature[0] == '?' || Feature[0] == '+')) &&
-        AArch64TargetInfo::doesFeatureAffectCodeGen(Feature.substr(1))) {
-      StringRef DepFeatures =
-          AArch64TargetInfo::getFeatureDependencies(Feature.substr(1));
-      SmallVector<StringRef, 1> AttrFeatures;
-      DepFeatures.split(AttrFeatures, ",");
-      for (auto F : AttrFeatures)
-        UpdatedFeaturesVec.push_back(F.str());
-    }
-  for (const auto &Feature : FeaturesVec)
-    if (Feature[0] != '?') {
-      std::string UpdatedFeature = Feature;
-      if (Feature[0] == '+') {
-        std::optional<llvm::AArch64::ExtensionInfo> Extension =
-          llvm::AArch64::parseArchExtension(Feature.substr(1));
-        if (Extension)
-          UpdatedFeature = Extension->Feature.str();
-      }
-      UpdatedFeaturesVec.push_back(UpdatedFeature);
-    }
-
-  return TargetInfo::initFeatureMap(Features, Diags, CPU, UpdatedFeaturesVec);
-}
-
 // Parse AArch64 Target attributes, which are a comma separated list of:
 //  "arch=<arch>" - parsed to features as per -march=..
 //  "cpu=<cpu>" - parsed to features as per -mcpu=.., with CPU set to <cpu>
@@ -1110,23 +1065,26 @@ ParsedTargetAttr AArch64TargetInfo::parseTargetAttr(StringRef Features) const {
   bool FoundArch = false;
 
   auto SplitAndAddFeatures = [](StringRef FeatString,
-                                std::vector<std::string> &Features) {
+                                std::vector<std::string> &Features,
+                                llvm::AArch64::ExtensionSet &FeatureBits) {
     SmallVector<StringRef, 8> SplitFeatures;
     FeatString.split(SplitFeatures, StringRef("+"), -1, false);
     for (StringRef Feature : SplitFeatures) {
-      StringRef FeatureName = llvm::AArch64::getArchExtFeature(Feature);
-      if (!FeatureName.empty())
-        Features.push_back(FeatureName.str());
+      if (FeatureBits.parseModifier(Feature))
+        continue;
+      // Pushing the original feature string to give a sema error later on
+      // when they get checked.
+      if (Feature.starts_with("no"))
+        Features.push_back("-" + Feature.drop_front(2).str());
       else
-        // Pushing the original feature string to give a sema error later on
-        // when they get checked.
-        if (Feature.starts_with("no"))
-          Features.push_back("-" + Feature.drop_front(2).str());
-        else
-          Features.push_back("+" + Feature.str());
+        Features.push_back("+" + Feature.str());
     }
   };
 
+  llvm::AArch64::ExtensionSet FeatureBits;
+  // Reconstruct the bitset from the command line option features.
+  FeatureBits.reconstructFromParsedFeatures(getTargetOpts().FeaturesAsWritten);
+
   for (auto &Feature : AttrFeatures) {
     Feature = Feature.trim();
     if (Feature.starts_with("fpmath="))
@@ -1149,9 +1107,9 @@ ParsedTargetAttr AArch64TargetInfo::parseTargetAttr(StringRef Features) const {
       // Ret.Features.
       if (!AI)
         continue;
-      Ret.Features.push_back(AI->ArchFeature.str());
+      FeatureBits.addArchDefaults(*AI);
       // Add any extra features, after the +
-      SplitAndAddFeatures(Split.second, Ret.Features);
+      SplitAndAddFeatures(Split.second, Ret.Features, FeatureBits);
     } else if (Feature.starts_with("cpu=")) {
       if (!Ret.CPU.empty())
         Ret.Duplicate = "cpu=";
@@ -1161,7 +1119,10 @@ ParsedTargetAttr AArch64TargetInfo::parseTargetAttr(StringRef Features) const {
         std::pair<StringRef, StringRef> Split =
             Feature.split("=").second.trim().split("+");
         Ret.CPU = Split.first;
-        SplitAndAddFeatures(Split.second, Ret.Features);
+        if (auto CpuInfo = llvm::AArch64::parseCpu(Ret.CPU)) {
+          FeatureBits.addCPUDefaults(*CpuInfo);
+          SplitAndAddFeatures(Split.second, Ret.Features, FeatureBits);
+        }
       }
     } else if (Feature.starts_with("tune=")) {
       if (!Ret.Tune.empty())
@@ -1169,25 +1130,19 @@ ParsedTargetAttr AArch64TargetInfo::parseTargetAttr(StringRef Features) const {
       else
         Ret.Tune = Feature.split("=").second.trim();
     } else if (Feature.starts_with("+")) {
-      SplitAndAddFeatures(Feature, Ret.Features);
-    } else if (Feature.starts_with("no-")) {
-      StringRef FeatureName =
-          llvm::AArch64::getArchExtFeature(Feature.split("-").second);
-      if (!FeatureName.empty())
-        Ret.Features.push_back("-" + FeatureName.drop_front(1).str());
-      else
-        Ret.Features.push_back("-" + Feature.split("-").second.str());
+      SplitAndAddFeatures(Feature, Ret.Features, FeatureBits);
     } else {
-      // Try parsing the string to the internal target feature name. If it is
-      // invalid, add the original string (which could already be an internal
-      // name). These should be checked later by isValidFeatureName.
-      StringRef FeatureName = llvm::AArch64::getArchExtFeature(Feature);
-      if (!FeatureName.empty())
-        Ret.Features.push_back(FeatureName.str());
+      if (FeatureBits.parseModifier(Feature))
+        continue;
+      // Pushing the original feature string to give a sema error later on
+      // when they get checked.
+      if (Feature.starts_with("no-"))
+        Ret.Features.push_back("-" + Feature.drop_front(3).str());
       else
         Ret.Features.push_back("+" + Feature.str());
     }
   }
+  FeatureBits.toLLVMFeatureList(Ret.Features);
   return Ret;
 }
 
diff --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h
index 12fb50286f751..696553ef8038a 100644
--- a/clang/lib/Basic/Targets/AArch64.h
+++ b/clang/lib/Basic/Targets/AArch64.h
@@ -107,10 +107,6 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
   unsigned multiVersionSortPriority(StringRef Name) const override;
   unsigned multiVersionFeatureCost() const override;
 
-  bool
-  initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
-                 StringRef CPU,
-                 const std::vector<std::string> &FeaturesVec) const override;
   bool useFP16ConversionIntrinsics() const override {
     return false;
   }
diff --git a/clang/test/CodeGen/aarch64-cpu-supports-target.c b/clang/test/CodeGen/aarch64-cpu-supports-target.c
index e023944b24e53..4a8f7cf8595ca 100644
--- a/clang/test/CodeGen/aarch64-cpu-supports-target.c
+++ b/clang/test/CodeGen/aarch64-cpu-supports-target.c
@@ -48,5 +48,5 @@ int test_versions() {
     return code();
 }
 // CHECK: attributes #0 = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
-// CHECK: attributes #1 = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+neon" }
+// CHECK: attributes #1 = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+fp-armv8,+neon" }
 // CHECK: attributes #2 = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+fp-armv8,+fullfp16,+neon,+sve" }
diff --git a/clang/test/CodeGen/aarch64-sme-intrinsics/aarch64-sme-attrs.cpp b/clang/test/CodeGen/aarch64-sme-intrinsics/aarch64-sme-attrs.cpp
index af8933d93d6cb..9885ac45e6a0e 100644
--- a/clang/test/CodeGen/aarch64-sme-intrinsics/aarch64-sme-attrs.cpp
+++ b/clang/test/CodeGen/aarch64-sme-intrinsics/aarch64-sme-attrs.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme \
+// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -target-feature +sme -target-feature +bf16 \
 // RUN:   -disable-O0-optnone -Werror -emit-llvm -o - %s \
 // RUN: | opt -S -passes=mem2reg \
 // RUN: | opt -S -passes=inline \
diff --git a/clang/test/CodeGen/aarch64-targetattr.c b/clang/test/CodeGen/aarch64-targetattr.c
index 3e7a209245607..f84e72bdac6b7 100644
--- a/clang/test/CodeGen/aarch64-targetattr.c
+++ b/clang/test/CodeGen/aarch64-targetattr.c
@@ -58,58 +58,57 @@ void v1msve() {}
 // CHECK-LABEL: @plussve() #12
 __attribute__((target("+sve")))
 void plussve() {}
-// CHECK-LABEL: @plussveplussve2() #13
+// CHECK-LABEL: @plussveplussve2() #12
 __attribute__((target("+sve+nosve2")))
 void plussveplussve2() {}
-// CHECK-LABEL: @plussveminusnosve2() #13
+// CHECK-LABEL: @plussveminusnosve2() #12
 __attribute__((target("sve,no-sve2")))
 void plussveminusnosve2() {}
-// CHECK-LABEL: @plusfp16() #14
+// CHECK-LABEL: @plusfp16() #13
 __attribute__((target("+fp16")))
 void plusfp16() {}
 
-// CHECK-LABEL: @all() #15
+// CHECK-LABEL: @all() #14
 __attribute__((target("cpu=neoverse-n1,tune=cortex-a710,arch=armv8.6-a+sve2")))
 void all() {}
-// CHECK-LABEL: @allplusbranchprotection() #16
+// CHECK-LABEL: @allplusbranchprotection() #15
 __attribute__((target("cpu=neoverse-n1,tune=cortex-a710,arch=armv8.6-a+sve2,branch-protection=standard")))
 void allplusbranchprotection() {}
 
 // These tests check that the user facing and internal llvm name are both accepted.
-// CHECK-LABEL: @plusnoneon() #17
+// CHECK-LABEL: @plusnoneon() #16
 __attribute__((target("+noneon")))
 void plusnoneon() {}
-// CHECK-LABEL: @plusnosimd() #17
+// CHECK-LABEL: @plusnosimd() #16
 __attribute__((target("+nosimd")))
 void plusnosimd() {}
-// CHECK-LABEL: @noneon() #17
+// CHECK-LABEL: @noneon() #16
 __attribute__((target("no-neon")))
 void noneon() {}
-// CHECK-LABEL: @nosimd() #17
+// CHECK-LABEL: @nosimd() #16
 __attribute__((target("no-simd")))
 void nosimd() {}
 
 // This isn't part of the standard interface, but test that -arch features should not apply anything else.
-// CHECK-LABEL: @minusarch() #18
+// CHECK-LABEL: @minusarch() #17
 __attribute__((target("no-v9.3a")))
 void minusarch() {}
 
 // CHECK: attributes #0 = { {{.*}} "target-features"="+crc,+fp-armv8,+lse,+neon,+ras,+rdm,+v8.1a,+v8.2a,+v8a" }
 // CHECK: attributes #1 = { {{.*}} "target-features"="+crc,+fp-armv8,+fullfp16,+lse,+neon,+ras,+rdm,+sve,+v8.1a,+v8.2a,+v8a" }
 // CHECK: attributes #2 = { {{.*}} "target-features"="+crc,+fp-armv8,+fullfp16,+lse,+neon,+ras,+rdm,+sve,+sve2,+v8.1a,+v8.2a,+v8a" }
-// CHECK: attributes #3 = { {{.*}} "target-features"="+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+ras,+rcpc,+rdm,+sve,+sve2,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8.5a,+v8.6a,+v8a" }
-// CHECK: attributes #4 = { {{.*}} "target-cpu"="cortex-a710" "target-features"="+bf16,+complxnum,+crc,+dotprod,+flagm,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+mte,+neon,+pauth,+ras,+rcpc,+rdm,+sb,+sve,+sve2,+sve2-bitperm" }
+// CHECK: attributes #3 = { {{.*}} "target-features"="+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+ras,+rcpc,+rdm,+sve,+sve2,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8.5a,+v8.6a,+v8a" }
+// CHECK: attributes #4 = { {{.*}} "target-cpu"="cortex-a710" "target-features"="+bf16,+complxnum,+crc,+dotprod,+flagm,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+mte,+neon,+pauth,+ras,+rcpc,+rdm,+sb,+sve,+sve2,+sve2-bitperm,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8.5a,+v8a,+v9a" }
 // CHECK: attributes #5 = { {{.*}} "tune-cpu"="cortex-a710" }
 // CHECK: attributes #6 = { {{.*}} "target-cpu"="generic" }
 // CHECK: attributes #7 = { {{.*}} "tune-cpu"="generic" }
-// CHECK: attributes #8 = { {{.*}} "target-cpu"="neoverse-n1" "target-features"="+aes,+crc,+dotprod,+fp-armv8,+fullfp16,+lse,+neon,+ras,+rcpc,+rdm,+sha2,+spe,+ssbs" "tune-cpu"="cortex-a710" }
+// CHECK: attributes #8 = { {{.*}} "target-cpu"="neoverse-n1" "target-features"="+aes,+crc,+dotprod,+fp-armv8,+fullfp16,+lse,+neon,+ras,+rcpc,+rdm,+sha2,+spe,+ssbs,+v8.1a,+v8.2a,+v8a" "tune-cpu"="cortex-a710" }
 // CHECK: attributes #9 = { {{.*}} "target-features"="+fp-armv8,+fullfp16,+neon,+sve" "tune-cpu"="cortex-a710" }
-// CHECK: attributes #10 = { {{.*}} "target-cpu"="neoverse-v1" "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+rand,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+spe,+ssbs,+sve,+sve2" }
-// CHECK: attributes #11 = { {{.*}} "target-cpu"="neoverse-v1" "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+rand,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+spe,+ssbs,-sve" }
+// CHECK: attributes #10 = { {{.*}} "target-cpu"="neoverse-v1" "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+rand,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+spe,+ssbs,+sve,+sve2,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8a" }
+// CHECK: attributes #11 = { {{.*}} "target-cpu"="neoverse-v1" "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fp16fml,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+rand,+ras,+rcpc,+rdm,+sha2,+sha3,+sm4,+spe,+ssbs,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8a,-sve" }
 // CHECK: attributes #12 = { {{.*}} "target-features"="+fp-armv8,+fullfp16,+neon,+sve" }
-// CHECK: attributes #13 = { {{.*}} "target-features"="+fp-armv8,+fullfp16,+neon,+sve,-sve2" }
-// CHECK: attributes #14 = { {{.*}} "target-features"="+fullfp16" }
-// CHECK: attributes #15 = { {{.*}} "target-cpu"="neoverse-n1" "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+ras,+rcpc,+rdm,+sha2,+spe,+ssbs,+sve,+sve2,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8.5a,+v8.6a,+v8a" "tune-cpu"="cortex-a710" }
-// CHECK: attributes #16 = { {{.*}} "branch-target-enforcement"="true" "guarded-control-stack"="true" {{.*}} "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+ras,+rcpc,+rdm,+sha2,+spe,+ssbs,+sve,+sve2,+v8.1a,+v8.2a,+v8.3a,+v8.4a,+v8.5a,+v8.6a,+v8a" "tune-cpu"="cortex-a710" }
-// CHECK: attributes #17 = { {{.*}} "target-features"="-neon" }
-// CHECK: attributes #18 = { {{.*}} "target-features"="-v9.3a" }
+// CHECK: attributes #13 = { {{.*}} "target-features"="+fp-armv8,+fullfp16,+neon" }
+// CHECK: attributes #14 = { {{.*}} "target-cpu"="neoverse-n1" "target-features"="+aes,+bf16,+complxnum,+crc,+dotprod,+fp-armv8,+fullfp16,+i8mm,+jsconv,+lse,+neon,+pauth,+ras,+rcpc,+rdm,+sha2,+spe,+ssbs,+sve,+sve2,+v8.1a,+v8.2a,+v8...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/94279


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