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Problem: LLVM needs more function attributes than currently available (32 bits). One such proposed attribute is "address_safety", which shows that a function is being checked for address safety (by AddressSanitizer, SAFECode, etc). Solution: - extend the Attributes from 32 bits to 64-bits - wrap the object into a class so that unsigned is never erroneously used instead - change "unsigned" to "Attributes" throughout the code, including one place in clang. - the class has no "operator uint64 ()", but it has "uint64_t Raw() " to support packing/unpacking. - the class has "safe operator bool()" to support the common idiom: if (Attributes attr = getAttrs()) useAttrs(attr); - The CTOR from uint64_t is marked explicit, so I had to add a few explicit CTOR calls - Add the new attribute "address_safety". Doing it in the same commit to check that attributes beyond first 32 bits actually work. - Some of the functions from the Attribute namespace are worth moving inside the class, but I'd prefer to have it as a separate commit. Tested: "make check" on Linux (32-bit and 64-bit) and Mac (10.6) built/run spec CPU 2006 on Linux with clang -O2. This change will break clang build in lib/CodeGen/CGCall.cpp. The following patch will fix it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148553 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
AsmWriter.cpp | ||
Attributes.cpp | ||
AutoUpgrade.cpp | ||
BasicBlock.cpp | ||
CMakeLists.txt | ||
ConstantFold.cpp | ||
ConstantFold.h | ||
Constants.cpp | ||
ConstantsContext.h | ||
Core.cpp | ||
DebugInfoProbe.cpp | ||
DebugLoc.cpp | ||
Dominators.cpp | ||
Function.cpp | ||
GCOV.cpp | ||
Globals.cpp | ||
GVMaterializer.cpp | ||
InlineAsm.cpp | ||
Instruction.cpp | ||
Instructions.cpp | ||
IntrinsicInst.cpp | ||
IRBuilder.cpp | ||
LeakDetector.cpp | ||
LeaksContext.h | ||
LLVMBuild.txt | ||
LLVMContext.cpp | ||
LLVMContextImpl.cpp | ||
LLVMContextImpl.h | ||
Makefile | ||
Metadata.cpp | ||
Module.cpp | ||
Pass.cpp | ||
PassManager.cpp | ||
PassRegistry.cpp | ||
PrintModulePass.cpp | ||
SymbolTableListTraitsImpl.h | ||
Type.cpp | ||
Use.cpp | ||
User.cpp | ||
Value.cpp | ||
ValueSymbolTable.cpp | ||
ValueTypes.cpp | ||
Verifier.cpp |