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| author | Wolfgang Pieb <wolfgang_pieb@playstation.sony.com> | 2023-02-06 13:50:37 -0800 |
|---|---|---|
| committer | Wolfgang Pieb <wolfgang_pieb@playstation.sony.com> | 2023-02-08 10:34:56 -0800 |
| commit | 5d07e0448e38d4be0cc7b1079d72b5e3644e941c (patch) | |
| tree | f98ec36c2a5f4df3a9ee87516335f8a72f206769 /clang/lib | |
| parent | 66b8d2bb71298cf3f406593464c6d729b7817f51 (diff) | |
| download | llvm-5d07e0448e38d4be0cc7b1079d72b5e3644e941c.zip llvm-5d07e0448e38d4be0cc7b1079d72b5e3644e941c.tar.gz llvm-5d07e0448e38d4be0cc7b1079d72b5e3644e941c.tar.bz2 | |
[TLS]: Clamp the alignment of TLS global variables if required by the target
Adding a module flag 'MaxTLSAlign' describing the maximum alignment a global TLS
variable can have. Optimizers are prevented from increasing the alignment of such
variables beyond this threshold.
Reviewed By: probinson
Differential Revision: https://reviews.llvm.org/D140123
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenModule.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp index 57c9e58..0f93c33 100644 --- a/clang/lib/CodeGen/CodeGenModule.cpp +++ b/clang/lib/CodeGen/CodeGenModule.cpp @@ -947,6 +947,10 @@ void CodeGenModule::Release() { if (getCodeGenOpts().SkipRaxSetup) getModule().addModuleFlag(llvm::Module::Override, "SkipRaxSetup", 1); + if (getContext().getTargetInfo().getMaxTLSAlign()) + getModule().addModuleFlag(llvm::Module::Error, "MaxTLSAlign", + getContext().getTargetInfo().getMaxTLSAlign()); + getTargetCodeGenInfo().emitTargetMetadata(*this, MangledDeclNames); EmitBackendOptionsMetadata(getCodeGenOpts()); |