[clang] [mlir] [llvm] [AArch64] Replace LLVM IR function attributes for PSTATE.ZA. (PR #79166)

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``````````bash
git-clang-format --diff 5daf674feba0f57b083113ad7ed486cad433a916 
04c7b856bac07476a3410f1334e703054bd3859d -- clang/lib/CodeGen/CGBuiltin.cpp 
clang/lib/CodeGen/CGCall.cpp clang/lib/CodeGen/CodeGenModule.cpp 
clang/test/CodeGen/aarch64-sme-intrinsics/aarch64-sme-attrs.cpp 
clang/test/CodeGen/aarch64-sme-intrinsics/acle_sme_zero.c 
clang/test/Modules/aarch64-sme-keywords.cppm llvm/lib/IR/Verifier.cpp 
llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp 
llvm/lib/Target/AArch64/SMEABIPass.cpp 
llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.cpp 
llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.h 
llvm/unittests/Target/AArch64/SMEAttributesTest.cpp 
mlir/lib/Target/LLVMIR/ModuleImport.cpp 
mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index 53d923ced8..b04d39c700 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -2155,14 +2155,13 @@ void Verifier::verifyFunctionAttrs(FunctionType *FT, 
AttributeList Attrs,
            V);
   }
 
-  Check(
-      (Attrs.hasFnAttr("aarch64_new_za") + Attrs.hasFnAttr("aarch64_in_za") +
-       Attrs.hasFnAttr("aarch64_inout_za") +
-       Attrs.hasFnAttr("aarch64_out_za") +
-       Attrs.hasFnAttr("aarch64_preserves_za")) <= 1,
-      "Attributes 'aarch64_new_za', 'aarch64_in_za', 'aarch64_out_za', "
-      "'aarch64_inout_za' and 'aarch64_preserves_za' are mutually exclusive",
-      V);
+  Check((Attrs.hasFnAttr("aarch64_new_za") + Attrs.hasFnAttr("aarch64_in_za") +
+         Attrs.hasFnAttr("aarch64_inout_za") +
+         Attrs.hasFnAttr("aarch64_out_za") +
+         Attrs.hasFnAttr("aarch64_preserves_za")) <= 1,
+        "Attributes 'aarch64_new_za', 'aarch64_in_za', 'aarch64_out_za', "
+        "'aarch64_inout_za' and 'aarch64_preserves_za' are mutually exclusive",
+        V);
 
   Check(
       (Attrs.hasFnAttr("aarch64_new_zt0") + Attrs.hasFnAttr("aarch64_in_zt0") +
diff --git a/llvm/lib/Target/AArch64/SMEABIPass.cpp 
b/llvm/lib/Target/AArch64/SMEABIPass.cpp
index bee5d63c5a..23b3cc9ec6 100644
--- a/llvm/lib/Target/AArch64/SMEABIPass.cpp
+++ b/llvm/lib/Target/AArch64/SMEABIPass.cpp
@@ -60,9 +60,8 @@ FunctionPass *llvm::createSMEABIPass() { return new SMEABI(); 
}
 void emitTPIDR2Save(Module *M, IRBuilder<> &Builder) {
   auto *TPIDR2SaveTy =
       FunctionType::get(Builder.getVoidTy(), {}, /*IsVarArgs=*/false);
-  auto Attrs =
-      AttributeList()
-          .addFnAttribute(M->getContext(), "aarch64_pstate_sm_compatible");
+  auto Attrs = AttributeList().addFnAttribute(M->getContext(),
+                                              "aarch64_pstate_sm_compatible");
   FunctionCallee Callee =
       M->getOrInsertFunction("__arm_tpidr2_save", TPIDR2SaveTy, Attrs);
   CallInst *Call = Builder.CreateCall(Callee);
diff --git a/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.cpp 
b/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.cpp
index ac07274a36..d399e0ac07 100644
--- a/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.cpp
+++ b/llvm/lib/Target/AArch64/Utils/AArch64SMEAttributes.cpp
@@ -52,7 +52,7 @@ SMEAttrs::SMEAttrs(StringRef FuncName) : Bitmask(0) {
     Bitmask |= (SMEAttrs::SM_Compatible | SMEAttrs::SME_ABI_Routine);
   if (FuncName == "__arm_tpidr2_restore")
     Bitmask |= SMEAttrs::SM_Compatible | encodeZAState(StateValue::In) |
-                SMEAttrs::SME_ABI_Routine;
+               SMEAttrs::SME_ABI_Routine;
 }
 
 SMEAttrs::SMEAttrs(const AttributeList &Attrs) {
diff --git a/llvm/unittests/Target/AArch64/SMEAttributesTest.cpp 
b/llvm/unittests/Target/AArch64/SMEAttributesTest.cpp
index 2c1c92dfa6..6036999e34 100644
--- a/llvm/unittests/Target/AArch64/SMEAttributesTest.cpp
+++ b/llvm/unittests/Target/AArch64/SMEAttributesTest.cpp
@@ -38,22 +38,21 @@ TEST(SMEAttributes, Constructors) {
               ->getFunction("foo"))
           .hasStreamingCompatibleInterface());
 
-
   ASSERT_TRUE(
       SA(*parseIR("declare void @foo() \"aarch64_in_za\"")->getFunction("foo"))
           .isInZA());
-  ASSERT_TRUE(SA(*parseIR("declare void @foo() \"aarch64_out_za\"")
-                      ->getFunction("foo"))
-                  .isOutZA());
+  ASSERT_TRUE(
+      SA(*parseIR("declare void @foo() 
\"aarch64_out_za\"")->getFunction("foo"))
+          .isOutZA());
   ASSERT_TRUE(SA(*parseIR("declare void @foo() \"aarch64_inout_za\"")
                       ->getFunction("foo"))
                   .isInOutZA());
   ASSERT_TRUE(SA(*parseIR("declare void @foo() \"aarch64_preserves_za\"")
                       ->getFunction("foo"))
                   .isPreservesZA());
-  ASSERT_TRUE(SA(*parseIR("declare void @foo() \"aarch64_new_za\"")
-                      ->getFunction("foo"))
-                  .isNewZA());
+  ASSERT_TRUE(
+      SA(*parseIR("declare void @foo() 
\"aarch64_new_za\"")->getFunction("foo"))
+          .isNewZA());
 
   ASSERT_TRUE(
       SA(*parseIR("declare void @foo() 
\"aarch64_in_zt0\"")->getFunction("foo"))

``````````

</details>


https://github.com/llvm/llvm-project/pull/79166
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