[clang] e6bd983 - [clang][CodeGen] Fix gcc warning about unused variable [NFC]

[Mikael Holmen via cfe-commits]

Author: Mikael Holmen
Date: 2024-01-17T13:23:08+01:00
New Revision: e6bd9835d90c8c30ceeb05338e80d75cf41a3b84

URL: https://github.com/llvm/llvm-project/commit/e6bd9835d90c8c30ceeb05338e80d75cf41a3b84
DIFF: https://github.com/llvm/llvm-project/commit/e6bd9835d90c8c30ceeb05338e80d75cf41a3b84.diff

LOG: [clang][CodeGen] Fix gcc warning about unused variable [NFC]

Without the fix gcc warned with
 ../../clang/lib/CodeGen/CGBuiltin.cpp:1022:19: warning: unused variable 'DRE' [-Wunused-variable]
  1022 |   if (const auto *DRE = dyn_cast<DeclRefExpr>(Base)) {
       |                   ^~~

Fix the warning by removing the unused variable and change the "dyn_cast"
to "isa".

Added: 
    

Modified: 
    clang/lib/CodeGen/CGBuiltin.cpp

Removed: 
    


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diff  --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index de48b15645b1ab..f4246c5e8f68e8 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -1019,7 +1019,7 @@ CodeGenFunction::emitFlexibleArrayMemberSize(const Expr *E, unsigned Type,
   FAMSize = Builder.CreateIntCast(FAMSize, ResType, IsSigned);
   Value *Res = FAMSize;
 
-  if (const auto *DRE = dyn_cast<DeclRefExpr>(Base)) {
+  if (isa<DeclRefExpr>(Base)) {
     // The whole struct is specificed in the __bdos.
     const ASTRecordLayout &Layout = Ctx.getASTRecordLayout(OuterRD);