mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-26 07:29:55 +00:00
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 |
||
---|---|---|
.. | ||
AddressSanitizer.cpp | ||
BoundsChecking.cpp | ||
CMakeLists.txt | ||
DataFlowSanitizer.cpp | ||
DebugIR.cpp | ||
DebugIR.h | ||
GCOVProfiling.cpp | ||
Instrumentation.cpp | ||
LLVMBuild.txt | ||
Makefile | ||
MaximumSpanningTree.h | ||
MemorySanitizer.cpp | ||
ThreadSanitizer.cpp |