Commit Graph

3 Commits

Author SHA1 Message Date
Boris-Chengbiao Zhou
4a76934aa7 Fix static relocation model for PowerPC64
We now also use `should_assume_dso_local()` for declarations and port two
additional cases from clang:
- Exclude PPC64 [1]
- Exclude thread-local variables [2]

[1]: 033138ea45/clang/lib/CodeGen/CodeGenModule.cpp (L1038-L1040)
[2]: 033138ea45/clang/lib/CodeGen/CodeGenModule.cpp (L1048-L1050)
2021-05-28 03:48:39 +02:00
Simonas Kazlauskas
2f000a78bf Manually set dso_local when its valid to do so
This should have no real effect in most cases, as e.g. `hidden`
visibility already implies `dso_local` (or at least LLVM IR does not
preserve the `dso_local` setting if the item is already `hidden`), but
it should fix `-Crelocation-model=static` and improve codegen in
executables.

Note that this PR does not exhaustively port the logic in [clang]. Only
the obviously correct portion and what is necessary to fix a regression
from LLVM 12 that relates to `-Crelocation_model=static`.

Fixes #83335

[clang]: 3001d080c8/clang/lib/CodeGen/CodeGenModule.cpp (L945-L1039)
2021-04-03 00:00:29 +03:00
mark
9e5f7d5631 mv compiler to compiler/ 2020-08-30 18:45:07 +03:00