[llvm] r209075 - Handle ConstantAggregateZero when upgrading global_ctors.
Rafael Espindola
rafael.espindola at gmail.com
Sat May 17 14:00:22 PDT 2014
Author: rafael
Date: Sat May 17 16:00:22 2014
New Revision: 209075
URL: http://llvm.org/viewvc/llvm-project?rev=209075&view=rev
Log:
Handle ConstantAggregateZero when upgrading global_ctors.
Added:
llvm/trunk/test/Bitcode/upgrade-global-ctors.ll
llvm/trunk/test/Bitcode/upgrade-global-ctors.ll.bc
Modified:
llvm/trunk/lib/IR/AutoUpgrade.cpp
Modified: llvm/trunk/lib/IR/AutoUpgrade.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/AutoUpgrade.cpp?rev=209075&r1=209074&r2=209075&view=diff
==============================================================================
--- llvm/trunk/lib/IR/AutoUpgrade.cpp (original)
+++ llvm/trunk/lib/IR/AutoUpgrade.cpp Sat May 17 16:00:22 2014
@@ -191,16 +191,19 @@ static bool UpgradeGlobalStructors(Globa
StructType::get(GV->getContext(), Tys, /*isPacked=*/false);
// Build new constants with a null third field filled in.
- ConstantArray *OldInit = dyn_cast<ConstantArray>(GV->getInitializer());
- if (!OldInit)
+ Constant *OldInitC = GV->getInitializer();
+ ConstantArray *OldInit = dyn_cast<ConstantArray>(OldInitC);
+ if (!OldInit && !isa<ConstantAggregateZero>(OldInitC))
return false;
std::vector<Constant *> Initializers;
- for (Use &U : OldInit->operands()) {
- ConstantStruct *Init = cast<ConstantStruct>(&U);
- Constant *NewInit =
+ if (OldInit) {
+ for (Use &U : OldInit->operands()) {
+ ConstantStruct *Init = cast<ConstantStruct>(&U);
+ Constant *NewInit =
ConstantStruct::get(NewTy, Init->getOperand(0), Init->getOperand(1),
Constant::getNullValue(VoidPtrTy), nullptr);
- Initializers.push_back(NewInit);
+ Initializers.push_back(NewInit);
+ }
}
assert(Initializers.size() == ATy->getNumElements());
Added: llvm/trunk/test/Bitcode/upgrade-global-ctors.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Bitcode/upgrade-global-ctors.ll?rev=209075&view=auto
==============================================================================
--- llvm/trunk/test/Bitcode/upgrade-global-ctors.ll (added)
+++ llvm/trunk/test/Bitcode/upgrade-global-ctors.ll Sat May 17 16:00:22 2014
@@ -0,0 +1,3 @@
+; RUN: llvm-dis < %s.bc| FileCheck %s
+
+; CHECK: @llvm.global_ctors = appending global [0 x { i32, void ()*, i8* }] zeroinitializer
Added: llvm/trunk/test/Bitcode/upgrade-global-ctors.ll.bc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Bitcode/upgrade-global-ctors.ll.bc?rev=209075&view=auto
==============================================================================
Binary files llvm/trunk/test/Bitcode/upgrade-global-ctors.ll.bc (added) and llvm/trunk/test/Bitcode/upgrade-global-ctors.ll.bc Sat May 17 16:00:22 2014 differ
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