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821a91ff77
Some temporary symbols are created by MC itself. These symbols are never used
for lookup and are never included in the object symbol table, so we can
avoid creating a name for them.
Other temporaries are created by CodeGen or by the user by explicitly asking
for a name starting with .L (or L on MachO).
These temporaries behave like regular symbols, we just try to avoid including
them in the object symbol table, but sometimes they end up there:
const char *foo() {
return "abc" + 3;
}
will have a relocation pointing to a .L symbol.
It just so happens that almost all MC created temporary has the AlwaysAddSuffix
option and CodeGen/user created ones don't.
One interesting future optimization would be to use unnamed symbols for
all temporaries, but that would require use an st_name of 0 or
having the object writer create the names if a symbol does end up in the
symbol table.
No testcase since this just avoid creating a few extra names for MC created
temporaries.
llvm-svn: 238887
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| .. | ||
| ADT | ||
| Analysis | ||
| AsmParser | ||
| Bitcode | ||
| CodeGen | ||
| Config | ||
| DebugInfo | ||
| ExecutionEngine | ||
| IR | ||
| IRReader | ||
| LineEditor | ||
| Linker | ||
| LTO | ||
| MC | ||
| Object | ||
| Option | ||
| Passes | ||
| ProfileData | ||
| Support | ||
| TableGen | ||
| Target | ||
| Transforms | ||
| CMakeLists.txt | ||
| InitializePasses.h | ||
| LinkAllIR.h | ||
| LinkAllPasses.h | ||
| module.modulemap | ||
| module.modulemap.build | ||
| Pass.h | ||
| PassAnalysisSupport.h | ||
| PassInfo.h | ||
| PassRegistry.h | ||
| PassSupport.h | ||