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Enable ODR uniquing of DITypes in more places

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Summary:
This is a follow-on to apply Duncan's new DIType ODR uniquing from
r266549 and r266713 in more places.

Enable enableDebugTypeODRUniquing() for ThinLTO backends invoked via
libLTO, similar to the way r266549 enabled this for ThinLTO backend
threads launched from gold-plugin.

Also enable enableDebugTypeODRUniquing in opt, similar to the way
r266549 enabled this for llvm-link (on by default, can be disabled with
new -disable-debug-info-type-map option), since we may perform ThinLTO
importing from opt.

Reviewers: dexonsmith, joker.eph

Subscribers: joker.eph, llvm-commits

Differential Revision: http://reviews.llvm.org/D19263

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266746 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Teresa Johnson 2016-04-19 15:48:30 +00:00
parent 511eb032bb
commit 9507885b18
2 changed files with 7 additions and 0 deletions
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1
lib/LTO/ThinLTOCodeGenerator.cpp
View File

@ -575,6 +575,7 @@ void ThinLTOCodeGenerator::run() {
Pool.async([&](int count) {
LLVMContext Context;
Context.setDiscardValueNames(LTODiscardValueNames);
Context.enableDebugTypeODRUniquing();
auto ModuleIdentifier = ModuleBuffer.getBufferIdentifier();
DenseMap<GlobalValue::GUID, GlobalValue::LinkageTypes> ResolvedODR;

6
tools/opt/opt.cpp
View File

@ -101,6 +101,10 @@ NoVerify("disable-verify", cl::desc("Do not run the verifier"), cl::Hidden);
static cl::opt<bool>
VerifyEach("verify-each", cl::desc("Verify after each transform"));
static cl::opt<bool>
DisableDITypeMap("disable-debug-info-type-map",
cl::desc("Don't use a uniquing type map for debug info"));
static cl::opt<bool>
StripDebug("strip-debug",
cl::desc("Strip debugger symbol info from translation unit"));
@ -365,6 +369,8 @@ int main(int argc, char **argv) {
SMDiagnostic Err;
Context.setDiscardValueNames(DiscardValueNames);
if (!DisableDITypeMap)
Context.enableDebugTypeODRUniquing();
// Load the input module...
std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context);