forked from OSchip/llvm-project
a5054ad2f3
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. llvm-svn: 148553 |
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| .. | ||
| ADCE.cpp | ||
| BasicBlockPlacement.cpp | ||
| CMakeLists.txt | ||
| CodeGenPrepare.cpp | ||
| ConstantProp.cpp | ||
| CorrelatedValuePropagation.cpp | ||
| DCE.cpp | ||
| DeadStoreElimination.cpp | ||
| EarlyCSE.cpp | ||
| GVN.cpp | ||
| GlobalMerge.cpp | ||
| IndVarSimplify.cpp | ||
| JumpThreading.cpp | ||
| LICM.cpp | ||
| LLVMBuild.txt | ||
| LoopDeletion.cpp | ||
| LoopIdiomRecognize.cpp | ||
| LoopInstSimplify.cpp | ||
| LoopRotation.cpp | ||
| LoopStrengthReduce.cpp | ||
| LoopUnrollPass.cpp | ||
| LoopUnswitch.cpp | ||
| LowerAtomic.cpp | ||
| Makefile | ||
| MemCpyOptimizer.cpp | ||
| ObjCARC.cpp | ||
| Reassociate.cpp | ||
| Reg2Mem.cpp | ||
| SCCP.cpp | ||
| Scalar.cpp | ||
| ScalarReplAggregates.cpp | ||
| SimplifyCFGPass.cpp | ||
| SimplifyLibCalls.cpp | ||
| Sink.cpp | ||
| TailRecursionElimination.cpp | ||