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[AsmPrinter] Simplify AsmPrinter::emitXXStructorList after D61547

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This commit is contained in:
Fangrui Song 2020-03-21 23:01:46 -07:00
parent 4b5ee2a22d
commit 8e10dffd51
2 changed files with 4 additions and 15 deletions
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15
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -2090,21 +2090,10 @@ void AsmPrinter::emitXXStructorList(const DataLayout &DL, const Constant *List,
// init priority.
if (!isa<ConstantArray>(List)) return;
// Sanity check the structors list.
const ConstantArray *InitList = dyn_cast<ConstantArray>(List);
if (!InitList) return; // Not an array!
StructType *ETy = dyn_cast<StructType>(InitList->getType()->getElementType());
if (!ETy || ETy->getNumElements() != 3 ||
!isa<IntegerType>(ETy->getTypeAtIndex(0U)) ||
!isa<PointerType>(ETy->getTypeAtIndex(1U)) ||
!isa<PointerType>(ETy->getTypeAtIndex(2U)))
return; // Not (int, ptr, ptr).
// Gather the structors in a form that's convenient for sorting by priority.
SmallVector<Structor, 8> Structors;
for (Value *O : InitList->operands()) {
ConstantStruct *CS = dyn_cast<ConstantStruct>(O);
if (!CS) continue; // Malformed.
for (Value *O : cast<ConstantArray>(List)->operands()) {
auto *CS = cast<ConstantStruct>(O);
if (CS->getOperand(1)->isNullValue())
break; // Found a null terminator, skip the rest.
ConstantInt *Priority = dyn_cast<ConstantInt>(CS->getOperand(0));

4
test/ExecutionEngine/OrcMCJIT/test-global-ctors.ll
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@ -1,8 +1,8 @@
; RUN: %lli -jit-kind=orc-mcjit %s > /dev/null
; XFAIL: darwin
@var = global i32 1, align 4
@llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @ctor_func }]
@llvm.global_dtors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @dtor_func }]
@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @ctor_func, i8* null }]
@llvm.global_dtors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @dtor_func, i8* null }]
define i32 @main() nounwind {
entry: