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authorJohn McCall <rjmccall@apple.com>2012-03-28 23:30:44 +0000
committerJohn McCall <rjmccall@apple.com>2012-03-28 23:30:44 +0000
commit57cd1b89cd91433ce1991a5bff36fe776a263796 (patch)
tree9d65d25e15649b8487c5a4e9fda2910c1a7dce74 /lib/CodeGen/CGCall.cpp
parentb684a42154a555206a33ac47a52ad2a306cfa2b4 (diff)
When we can't prove that the target of an aggregate copy is
a complete object, the memcpy needs to use the data size of the structure instead of its sizeof() value. Fixes PR12204. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153613 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CGCall.cpp')
-rw-r--r--lib/CodeGen/CGCall.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 4455f1a086..f5d7944b37 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -1875,7 +1875,8 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
if (Align > AI->getAlignment())
AI->setAlignment(Align);
Args.push_back(AI);
- EmitAggregateCopy(AI, Addr, I->Ty, RV.isVolatileQualified());
+ EmitAggregateCopy(AI, Addr, I->Ty, RV.isVolatileQualified(),
+ /*destIsCompleteObject*/ true);
// Validate argument match.
checkArgMatches(AI, IRArgNo, IRFuncTy);