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Merge Clang r202185:
Debug info: Generate debug info for variadic functions.
Paired commit with LLVM.
rdar://problem/13690847
This merege includes changes to use the Clang 3.4 API (revisions
199686 and 200082) in lib/CodeGen/CGDebugInfo.cpp:
getParamType -> getArgType
getNumParams -> getNumArgs
getReturnType -> getResultType
Sponsored by: DARPA, AFRL
Introduced here: http://svnweb.freebsd.org/changeset/base/264827
Index: tools/clang/lib/CodeGen/CGDebugInfo.cpp
===================================================================
--- tools/clang/lib/CodeGen/CGDebugInfo.cpp (revision 264826)
+++ tools/clang/lib/CodeGen/CGDebugInfo.cpp (revision 264827)
@@ -37,7 +37,7 @@
#include "llvm/IR/Module.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Path.h"
+#include "llvm/Support/Path.h"
using namespace clang;
using namespace clang::CodeGen;
@@ -342,9 +342,9 @@
if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) {
MainFileDir = MainFile->getDir()->getName();
if (MainFileDir != ".") {
- llvm::SmallString<1024> MainFileDirSS(MainFileDir);
- llvm::sys::path::append(MainFileDirSS, MainFileName);
- MainFileName = MainFileDirSS.str();
+ llvm::SmallString<1024> MainFileDirSS(MainFileDir);
+ llvm::sys::path::append(MainFileDirSS, MainFileName);
+ MainFileName = MainFileDirSS.str();
}
}
@@ -760,6 +760,8 @@
else if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(Ty)) {
for (unsigned i = 0, e = FPT->getNumArgs(); i != e; ++i)
EltTys.push_back(getOrCreateType(FPT->getArgType(i), Unit));
+ if (FPT->isVariadic())
+ EltTys.push_back(DBuilder.createUnspecifiedParameter());
}
llvm::DIArray EltTypeArray = DBuilder.getOrCreateArray(EltTys);
@@ -2420,6 +2422,20 @@
llvm::DIArray EltTypeArray = DBuilder.getOrCreateArray(Elts);
return DBuilder.createSubroutineType(F, EltTypeArray);
}
+
+ // Variadic function.
+ if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
+ if (FD->isVariadic()) {
+ SmallVector<llvm::Value *, 16> EltTys;
+ EltTys.push_back(getOrCreateType(FD->getResultType(), F));
+ if (const FunctionProtoType *FPT = dyn_cast<FunctionProtoType>(FnType))
+ for (unsigned i = 0, e = FPT->getNumArgs(); i != e; ++i)
+ EltTys.push_back(getOrCreateType(FPT->getArgType(i), F));
+ EltTys.push_back(DBuilder.createUnspecifiedParameter());
+ llvm::DIArray EltTypeArray = DBuilder.getOrCreateArray(EltTys);
+ return DBuilder.createSubroutineType(F, EltTypeArray);
+ }
+
return llvm::DICompositeType(getOrCreateType(FnType, F));
}
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