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Revert r273568 "Remangle intrinsics names when types are renamed"

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It broke 2008-07-15-Bswap.ll and 2009-09-01-PostRAProlog.ll

llvm-svn: 273574
This commit is contained in:
Hans Wennborg
2016-06-23 16:13:23 +00:00
parent 4fec7b7131
commit a63b50afb8
8 changed files with 2 additions and 163 deletions
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25
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -15,7 +15,6 @@
#include "llvm/Bitcode/LLVMBitCodes.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/IR/AutoUpgrade.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DebugInfoMetadata.h"
@@ -231,10 +230,8 @@ class BitcodeReader : public GVMaterializer {
// When intrinsic functions are encountered which require upgrading they are
// stored here with their replacement function.
typedef DenseMap<Function*, Function*> UpdatedIntrinsicMap;
UpdatedIntrinsicMap UpgradedIntrinsics;
// Intrinsics which were remangled because of types rename
UpdatedIntrinsicMap RemangledIntrinsics;
typedef DenseMap<Function*, Function*> UpgradedIntrinsicMap;
UpgradedIntrinsicMap UpgradedIntrinsics;
// Map the bitcode's custom MDKind ID to the Module's MDKind ID.
DenseMap<unsigned, unsigned> MDKindMap;
@@ -3428,11 +3425,6 @@ std::error_code BitcodeReader::globalCleanup() {
Function *NewFn;
if (UpgradeIntrinsicFunction(&F, NewFn))
UpgradedIntrinsics[&F] = NewFn;
else if (auto Remangled = Intrinsic::remangleIntrinsicFunction(&F))
// Some types could be renamed during loading if several modules are
// loaded in the same LLVMContext (LTO scenario). In this case we should
// remangle intrinsics names as well.
RemangledIntrinsics[&F] = Remangled.getValue();
}
// Look for global variables which need to be renamed.
@@ -5609,13 +5601,6 @@ std::error_code BitcodeReader::materialize(GlobalValue *GV) {
}
}
// Update calls to the remangled intrinsics
for (auto &I : RemangledIntrinsics)
for (auto UI = I.first->materialized_user_begin(), UE = I.first->user_end();
UI != UE;)
// Don't expect any other users than call sites
CallSite(*UI++).setCalledFunction(I.second);
// Finish fn->subprogram upgrade for materialized functions.
if (DISubprogram *SP = FunctionsWithSPs.lookup(F))
F->setSubprogram(SP);
@@ -5669,12 +5654,6 @@ std::error_code BitcodeReader::materializeModule() {
I.first->eraseFromParent();
}
UpgradedIntrinsics.clear();
// Do the same for remangled intrinsics
for (auto &I : RemangledIntrinsics) {
I.first->replaceAllUsesWith(I.second);
I.first->eraseFromParent();
}
RemangledIntrinsics.clear();
UpgradeDebugInfo(*TheModule);