forked from OSchip/llvm-project
04c3040f41
`__llvm_prf_vnodes` and `__llvm_prf_names` are used by runtime but not referenced via relocation in the translation unit. With `-z start-stop-gc` (D96914 https://sourceware.org/bugzilla/show_bug.cgi?id=27451), the linker no longer lets `__start_/__stop_` references retain them. Place `__llvm_prf_vnodes` and `__llvm_prf_names` in `llvm.used` to make them retained by the linker. This patch changes most existing `UsedVars` cases to `CompilerUsedVars` to reflect the ideal state - if the binary format properly supports section based GC (dead stripping), `llvm.compiler.used` should be sufficient. `__llvm_prf_vnodes` and `__llvm_prf_names` are switched to `UsedVars` since we want them to be unconditionally retained by both compiler and linker. Behaviors on other COFF/Mach-O are not affected. Differential Revision: https://reviews.llvm.org/D97649 |
||
|---|---|---|
| .. | ||
| AddressSanitizer | ||
| BoundsChecking | ||
| DataFlowSanitizer | ||
| HWAddressSanitizer | ||
| HeapProfiler | ||
| InstrOrderFile | ||
| InstrProfiling | ||
| MemorySanitizer | ||
| PoisonChecking | ||
| SanitizerCoverage | ||
| ThreadSanitizer | ||
| cgprofile.ll | ||