[llvm] [SystemZ] Fix signext attribute handling in XPLINK64 calling convention (PR #206833)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/lib/Target/SystemZ/SystemZCallingConv.h llvm/lib/Target/SystemZ/SystemZISelLowering.cpp --diff_from_common_commit
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``````````diff
diff --git a/llvm/lib/Target/SystemZ/SystemZCallingConv.h b/llvm/lib/Target/SystemZ/SystemZCallingConv.h
index 32b40a851..797840bc9 100644
--- a/llvm/lib/Target/SystemZ/SystemZCallingConv.h
+++ b/llvm/lib/Target/SystemZ/SystemZCallingConv.h
@@ -170,8 +170,8 @@ inline bool CC_XPLINK64_Allocate128BitVararg(unsigned &ValNo, MVT &ValVT,
 }
 
 inline bool CC_XPLINK_Promote_i32(unsigned &ValNo, MVT &ValVT, MVT &LocVT,
-                              CCValAssign::LocInfo &LocInfo,
-                              ISD::ArgFlagsTy &ArgFlags, CCState &State) {
+                                  CCValAssign::LocInfo &LocInfo,
+                                  ISD::ArgFlagsTy &ArgFlags, CCState &State) {
 
   assert(ValVT.isInteger() && ValVT == MVT::i32 && "Expected MVT:32 as ValVT");
   LocVT = MVT::i64;
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 2dedc876b..f3b74aa71 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -2038,8 +2038,7 @@ SDValue SystemZTargetLowering::LowerFormalArguments(
 
   // Assign locations to all of the incoming arguments.
   SmallVector<CCValAssign, 16> ArgLocs;
-  SystemZCCState CCInfo(CallConv, IsVarArg, MF, ArgLocs,
-                                 *DAG.getContext());
+  SystemZCCState CCInfo(CallConv, IsVarArg, MF, ArgLocs, *DAG.getContext());
   CCInfo.setIsFormalArgLowering();
   CCInfo.AnalyzeFormalArguments(Ins, CC_SystemZ);
   FuncInfo->setSizeOfFnParams(CCInfo.getStackSize());

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https://github.com/llvm/llvm-project/pull/206833