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This adds back r204781. Original message: Aliases are just another name for a position in a file. As such, the regular symbol resolutions are not applied. For example, given define void @my_func() { ret void } @my_alias = alias weak void ()* @my_func @my_alias2 = alias void ()* @my_alias We produce without this patch: .weak my_alias my_alias = my_func .globl my_alias2 my_alias2 = my_alias That is, in the resulting ELF file my_alias, my_func and my_alias are just 3 names pointing to offset 0 of .text. That is *not* the semantics of IR linking. For example, linking in a @my_alias = alias void ()* @other_func would require the strong my_alias to override the weak one and my_alias2 would end up pointing to other_func. There is no way to represent that with aliases being just another name, so the best solution seems to be to just disallow it, converting a miscompile into an error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204934 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
Disassembler | ||
InstPrinter | ||
MCTargetDesc | ||
TargetInfo | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
Makefile | ||
README.txt | ||
XCore.h | ||
XCore.td | ||
XCoreAsmPrinter.cpp | ||
XCoreCallingConv.td | ||
XCoreFrameLowering.cpp | ||
XCoreFrameLowering.h | ||
XCoreFrameToArgsOffsetElim.cpp | ||
XCoreInstrFormats.td | ||
XCoreInstrInfo.cpp | ||
XCoreInstrInfo.h | ||
XCoreInstrInfo.td | ||
XCoreISelDAGToDAG.cpp | ||
XCoreISelLowering.cpp | ||
XCoreISelLowering.h | ||
XCoreLowerThreadLocal.cpp | ||
XCoreMachineFunctionInfo.cpp | ||
XCoreMachineFunctionInfo.h | ||
XCoreMCInstLower.cpp | ||
XCoreMCInstLower.h | ||
XCoreRegisterInfo.cpp | ||
XCoreRegisterInfo.h | ||
XCoreRegisterInfo.td | ||
XCoreSelectionDAGInfo.cpp | ||
XCoreSelectionDAGInfo.h | ||
XCoreSubtarget.cpp | ||
XCoreSubtarget.h | ||
XCoreTargetMachine.cpp | ||
XCoreTargetMachine.h | ||
XCoreTargetObjectFile.cpp | ||
XCoreTargetObjectFile.h | ||
XCoreTargetStreamer.h | ||
XCoreTargetTransformInfo.cpp |
To-do ----- * Instruction encodings * Tailcalls * Investigate loop alignment * Add builtins