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llvm.global_[cd]tor is defined to be either external, or appending with an array

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of { i32, void ()* }. Teach the verifier to verify that, deleting copies of
checks strewn about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129128 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2011-04-08 07:30:21 +00:00
parent dd099e1e55
commit 2c44a80d99
4 changed files with 32 additions and 36 deletions
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18
lib/CodeGen/ELFWriter.cpp
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@@ -660,19 +660,17 @@ bool ELFWriter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) {
/// EmitXXStructorList - Emit the ctor or dtor list. This just emits out the
/// function pointers, ignoring the init priority.
void ELFWriter::EmitXXStructorList(Constant *List, ELFSection &Xtor) {
// Should be an array of '{ int, void ()* }' structs. The first value is the
// Should be an array of '{ i32, void ()* }' structs. The first value is the
// init priority, which we ignore.
if (!isa<ConstantArray>(List)) return;
ConstantArray *InitList = cast<ConstantArray>(List);
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
if (ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i))){
if (CS->getNumOperands() != 2) return; // Not array of 2-element structs.
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
ConstantStruct *CS = cast<ConstantStruct>(InitList->getOperand(i));
if (CS->getOperand(1)->isNullValue())
return; // Found a null terminator, exit printing.
// Emit the function pointer.
EmitGlobalConstant(CS->getOperand(1), Xtor);
}
if (CS->getOperand(1)->isNullValue())
return; // Found a null terminator, exit printing.
// Emit the function pointer.
EmitGlobalConstant(CS->getOperand(1), Xtor);
}
}
bool ELFWriter::runOnMachineFunction(MachineFunction &MF) {