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Switch the type field in DIVariable and DIGlobalVariable over to DITypeRefs.

Browse Source 
This allows us to catch more opportunities for ODR-based type uniquing
during LTO.
Paired commit with CFE which updates some testcases to verify the new
DIBuilder behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204106 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adrian Prantl
2014-03-18 02:34:58 +00:00
parent 4d82ca7462
commit 5e8144df32
9 changed files with 51 additions and 32 deletions
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12
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -115,11 +115,17 @@ template <typename T> T DbgVariable::resolve(DIRef<T> Ref) const {
return DD->resolve(Ref);
}
bool DbgVariable::isBlockByrefVariable() const {
assert(Var.isVariable() && "Invalid complex DbgVariable!");
return Var.isBlockByrefVariable(DD->getTypeIdentifierMap());
}
DIType DbgVariable::getType() const {
DIType Ty = Var.getType();
DIType Ty = Var.getType().resolve(DD->getTypeIdentifierMap());
// FIXME: isBlockByrefVariable should be reformulated in terms of complex
// addresses instead.
if (Var.isBlockByrefVariable()) {
if (Var.isBlockByrefVariable(DD->getTypeIdentifierMap())) {
/* Byref variables, in Blocks, are declared by the programmer as
"SomeType VarName;", but the compiler creates a
__Block_byref_x_VarName struct, and gives the variable VarName
@ -2301,7 +2307,7 @@ void DwarfDebug::emitDebugLocEntry(ByteStreamer &Streamer,
const DebugLocEntry &Entry) {
DIVariable DV(Entry.getVariable());
if (Entry.isInt()) {
DIBasicType BTy(DV.getType());
DIBasicType BTy(resolve(DV.getType()));
if (BTy.Verify() && (BTy.getEncoding() == dwarf::DW_ATE_signed ||
BTy.getEncoding() == dwarf::DW_ATE_signed_char)) {
Streamer.EmitInt8(dwarf::DW_OP_consts, "DW_OP_consts");