[GlobalISel][nfc] Remove unnecessary cast

The getOperand method already returns a Constant when it is called on
a ConstantExpression, as such the cast is not needed. To prevent a type
mismatch between the different return statements of the lambda, the
lambda return type is explicitly provided.

Differential Revision: https://reviews.llvm.org/D130719

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
index 4ecfda15d032..7328ea4eed25 100644
--- a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
@@ -97,10 +97,10 @@ MachineInstrBuilder MachineIRBuilder::buildConstDbgValue(const Constant &C,
       "Expected inlined-at fields to agree");
   auto MIB = buildInstrNoInsert(TargetOpcode::DBG_VALUE);
 
-  auto *NumericConstant = [&] {
+  auto *NumericConstant = [&] () -> const Constant* {
     if (const auto *CE = dyn_cast<ConstantExpr>(&C))
       if (CE->getOpcode() == Instruction::IntToPtr)
-        return cast<const Constant>(CE->getOperand(0));
+        return CE->getOperand(0);
     return &C;
   }();