[llvm] [MSP430] Compute c+1 at the operand bit width in EmitCMP (PR #195892)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/MSP430/MSP430ISelLowering.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp b/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
index abae461cb..d91596963 100644
--- a/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
+++ b/llvm/lib/Target/MSP430/MSP430ISelLowering.cpp
@@ -889,7 +889,8 @@ static SDValue EmitCMP(SDValue &LHS, SDValue &RHS, SDValue &TargetCC,
     // fold constant into instruction.
     if (const ConstantSDNode * C = dyn_cast<ConstantSDNode>(LHS)) {
       LHS = RHS;
-      RHS = DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
+      RHS =
+          DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
       TCC = MSP430CC::COND_LO;
       break;
     }
@@ -903,7 +904,8 @@ static SDValue EmitCMP(SDValue &LHS, SDValue &RHS, SDValue &TargetCC,
     // fold constant into instruction.
     if (const ConstantSDNode * C = dyn_cast<ConstantSDNode>(LHS)) {
       LHS = RHS;
-      RHS = DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
+      RHS =
+          DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
       TCC = MSP430CC::COND_HS;
       break;
     }
@@ -917,7 +919,8 @@ static SDValue EmitCMP(SDValue &LHS, SDValue &RHS, SDValue &TargetCC,
     // fold constant into instruction.
     if (const ConstantSDNode * C = dyn_cast<ConstantSDNode>(LHS)) {
       LHS = RHS;
-      RHS = DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
+      RHS =
+          DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
       TCC = MSP430CC::COND_L;
       break;
     }
@@ -931,7 +934,8 @@ static SDValue EmitCMP(SDValue &LHS, SDValue &RHS, SDValue &TargetCC,
     // fold constant into instruction.
     if (const ConstantSDNode * C = dyn_cast<ConstantSDNode>(LHS)) {
       LHS = RHS;
-      RHS = DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
+      RHS =
+          DAG.getSignedConstant(C->getSExtValue() + 1, dl, C->getValueType(0));
       TCC = MSP430CC::COND_GE;
       break;
     }

``````````

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https://github.com/llvm/llvm-project/pull/195892