commit f35a3456eafa82e93938164c804683cc312ce7ec
author Vitaly Buka <vitalybuka@google.com> Thu Jun 27 02:08:15 2019 +0000
committer Vitaly Buka <vitalybuka@google.com> Thu Jun 27 02:08:15 2019 +0000
tree 4aa1cb45dfde8aeb3aaeb8a76fa1e0e18e95338d
parent d661a06bed4e383a8fa2ddca5849880e27d77fa8

[NFC] Return early for types with size zero

llvm-svn: 364495

clang/lib/CodeGen/CGDecl.cpp

diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp
index a09b8fc..43c962d 100644
--- a/clang/lib/CodeGen/CGDecl.cpp
+++ b/clang/lib/CodeGen/CGDecl.cpp
@@ -1145,6 +1145,10 @@
                                   CGBuilderTy &Builder,
                                   llvm::Constant *constant) {
   auto *Ty = constant->getType();
+  uint64_t ConstantSize = CGM.getDataLayout().getTypeAllocSize(Ty);
+  if (!ConstantSize)
+    return;
+
   bool canDoSingleStore = Ty->isIntOrIntVectorTy() ||
                           Ty->isPtrOrPtrVectorTy() || Ty->isFPOrFPVectorTy();
   if (canDoSingleStore) {
@@ -1152,9 +1156,6 @@
     return;
   }
 
-  uint64_t ConstantSize = CGM.getDataLayout().getTypeAllocSize(Ty);
-  if (!ConstantSize)
-    return;
   auto *SizeVal = llvm::ConstantInt::get(CGM.IntPtrTy, ConstantSize);
 
   // If the initializer is all or mostly the same, codegen with bzero / memset