[llvm] Remove constant local variable (PR #83850)

[Martin Wehking via llvm-commits]

https://github.com/MartinWehking created https://github.com/llvm/llvm-project/pull/83850

Remove isThisReturn which has always the value false.
Replace its uses with false directly.

>From cd4895c7c4630601718eebc9aed25841e0a590c8 Mon Sep 17 00:00:00 2001
From: Martin Wehking <martin.wehking at codeplay.com>
Date: Mon, 4 Mar 2024 14:23:55 +0000
Subject: [PATCH] Remove constant local variable

Remove isThisReturn which has always the value false
Replace its uses with false directly.
---
 llvm/lib/Target/AMDGPU/SIISelLowering.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 0df0b5cdf0f392..9739dee6ba591b 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -3599,7 +3599,6 @@ SDValue SITargetLowering::LowerCall(CallLoweringInfo &CLI,
   bool &IsTailCall = CLI.IsTailCall;
   bool IsVarArg = CLI.IsVarArg;
   bool IsSibCall = false;
-  bool IsThisReturn = false;
   MachineFunction &MF = DAG.getMachineFunction();
 
   if (Callee.isUndef() || isNullConstant(Callee)) {
@@ -3892,8 +3891,7 @@ SDValue SITargetLowering::LowerCall(CallLoweringInfo &CLI,
   // Handle result values, copying them out of physregs into vregs that we
   // return.
   return LowerCallResult(Chain, InGlue, CallConv, IsVarArg, Ins, DL, DAG,
-                         InVals, IsThisReturn,
-                         IsThisReturn ? OutVals[0] : SDValue());
+                         InVals, false, SDValue());
 }
 
 // This is identical to the default implementation in ExpandDYNAMIC_STACKALLOC,