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WebAssembly: Emit all TLS globals as regular __gshared globals

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This commit is contained in:
Martin Kinkelin 2020-01-24 02:34:59 +01:00
parent 00a270e76f
commit 0563aedad3
1 changed files with 8 additions and 3 deletions
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9
gen/llvmhelpers.cpp
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@ -1755,6 +1755,12 @@ llvm::GlobalVariable *declareGlobal(const Loc &loc, llvm::Module &module,
llvm::Type *type, llvm::Type *type,
llvm::StringRef mangledName, llvm::StringRef mangledName,
bool isConstant, bool isThreadLocal) { bool isConstant, bool isThreadLocal) {
// No TLS support for WebAssembly; spare users from having to add __gshared
// everywhere.
const auto arch = global.params.targetTriple->getArch();
if (arch == llvm::Triple::wasm32 || arch == llvm::Triple::wasm64)
isThreadLocal = false;
llvm::GlobalVariable *existing = llvm::GlobalVariable *existing =
module.getGlobalVariable(mangledName, /*AllowInternal=*/true); module.getGlobalVariable(mangledName, /*AllowInternal=*/true);
if (existing) { if (existing) {
@ -1785,8 +1791,7 @@ llvm::GlobalVariable *declareGlobal(const Loc &loc, llvm::Module &module,
// command line. // command line.
const auto tlsModel = const auto tlsModel =
isThreadLocal isThreadLocal
? (global.params.targetTriple->getArch() == llvm::Triple::ppc ? (arch == llvm::Triple::ppc ? llvm::GlobalVariable::LocalExecTLSModel
? llvm::GlobalVariable::LocalExecTLSModel
: clThreadModel.getValue()) : clThreadModel.getValue())
: llvm::GlobalVariable::NotThreadLocal; : llvm::GlobalVariable::NotThreadLocal;