[llvm] [X86][AMX] Combine constant zero vector and AMX cast to tilezero (PR #92384)

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git-clang-format --diff 46bc54f4e688870da8356a9b85257ffb12d47e1f 0a33db0fae8db4f3f430b26909583d8e2188f2df -- llvm/lib/Target/X86/X86LowerAMXType.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/X86/X86LowerAMXType.cpp b/llvm/lib/Target/X86/X86LowerAMXType.cpp
index 539a9b2e4b..b30f24d79a 100644
--- a/llvm/lib/Target/X86/X86LowerAMXType.cpp
+++ b/llvm/lib/Target/X86/X86LowerAMXType.cpp
@@ -989,7 +989,8 @@ bool X86LowerAMXCast::combineLoadCast(IntrinsicInst *Cast, LoadInst *LD) {
   return EraseLoad;
 }
 
-// %19 = tail call x86_amx @llvm.x86.cast.vector.to.tile.v256i32(<256 x i32> zeroinitializer)
+// %19 = tail call x86_amx @llvm.x86.cast.vector.to.tile.v256i32(<256 x i32>
+// zeroinitializer)
 // -->
 // %19 = tail call x86_amx @llvm.x86.tilezero.internal(i16 %row, i16 %col)
 bool X86LowerAMXCast::combineTilezero(IntrinsicInst *Cast) {
@@ -1033,9 +1034,11 @@ bool X86LowerAMXCast::combineLdSt(SmallVectorImpl<Instruction *> &Casts) {
       for (auto *Store : DeadStores)
         Store->eraseFromParent();
     } else { // x86_cast_vector_to_tile
-      //  %19 = tail call x86_amx @llvm.x86.cast.vector.to.tile.v256i32(<256 x i32> zeroinitializer)
+      //  %19 = tail call x86_amx @llvm.x86.cast.vector.to.tile.v256i32(<256 x
+      //  i32> zeroinitializer)
       //  -->
-      //  %19 = tail call x86_amx @llvm.x86.tilezero.internal(i16 %row, i16 %col)
+      //  %19 = tail call x86_amx @llvm.x86.tilezero.internal(i16 %row, i16
+      //  %col)
       if (dyn_cast<ConstantAggregateZero>(Cast->getOperand(0))) {
         Change |= combineTilezero(cast<IntrinsicInst>(Cast));
         continue;

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https://github.com/llvm/llvm-project/pull/92384