void WebAssemblyTargetInfo::adjust(DiagnosticsEngine &Diags,
LangOptions &Opts) {
TargetInfo::adjust(Diags, Opts);
- // If the Atomics feature isn't available, turn off POSIXThreads and
- // ThreadModel, so that we don't predefine _REENTRANT or __STDCPP_THREADS__.
- if (!HasAtomics) {
+ // Turn off POSIXThreads and ThreadModel so that we don't predefine _REENTRANT
+ // or __STDCPP_THREADS__ if we will eventually end up stripping atomics
+ // because they are unsupported.
+ if (!HasAtomics || !HasBulkMemory) {
Opts.POSIXThreads = false;
Opts.setThreadModel(LangOptions::ThreadModelKind::Single);
Opts.ThreadsafeStatics = false;
-// RUN: %clang_cc1 -emit-llvm -triple=wasm32-unknown-unknown -target-feature +atomics -o - %s \
+// RUN: %clang_cc1 -emit-llvm -triple=wasm32-unknown-unknown -target-feature +atomics -target-feature +bulk-memory -o - %s \
// RUN: | FileCheck %s -check-prefix=WEBASSEMBLY32
-// RUN: %clang_cc1 -emit-llvm -triple=wasm64-unknown-unknown -target-feature +atomics -o - %s \
+// RUN: %clang_cc1 -emit-llvm -triple=wasm64-unknown-unknown -target-feature +atomics -target-feature +bulk-memory -o - %s \
// RUN: | FileCheck %s -check-prefix=WEBASSEMBLY64
// Test that we don't create common blocks.
// WEBASSEMBLY64: define internal void @_GLOBAL__sub_I_static_init_wasm.cpp() #3 {
// WEBASSEMBLY64: call void @__cxx_global_var_init()
-// RUN: %clang_cc1 -emit-llvm -triple=wasm32-unknown-unknown -o - %s \
+// RUN: %clang_cc1 -emit-llvm -triple=wasm32-unknown-unknown -target-feature +bulk-memory -o - %s \
// RUN: | FileCheck %s -check-prefix=NOATOMICS
-// RUN: %clang_cc1 -emit-llvm -triple=wasm64-unknown-unknown -o - %s \
+// RUN: %clang_cc1 -emit-llvm -triple=wasm64-unknown-unknown -target-feature +bulk-memory -o - %s \
// RUN: | FileCheck %s -check-prefix=NOATOMICS
// NOATOMICS-LABEL: @_Z1gv()
// NOATOMICS-NOT: __cxa_guard_acquire
// NOATOMICS: [[END]]:
// NOATOMICS-NEXT: ret void
+
+// RUN: %clang_cc1 -emit-llvm -triple=wasm32-unknown-unknown -target-feature +atomics -o - %s \
+// RUN: | FileCheck %s -check-prefix=NOBULKMEM
+// RUN: %clang_cc1 -emit-llvm -triple=wasm64-unknown-unknown -target-feature +atomics -o - %s \
+// RUN: | FileCheck %s -check-prefix=NOBULKMEM
+
+// NOBULKMEM-LABEL: @_Z1gv()
+// NOBULKMEM: %[[R0:.+]] = load i8, i8* @_ZGVZ1gvE1a, align 1
+// NOBULKMEM-NEXT: %guard.uninitialized = icmp eq i8 %[[R0]], 0
+// NOBULKMEM-NEXT: br i1 %guard.uninitialized, label %[[CHECK:.+]], label %[[END:.+]],
+// NOBULKMEM: [[CHECK]]:
+// NOBULKMEM-NOT: __cxa_guard_acquire
+// NOBULKMEM: [[END]]:
+// NOBULKMEM-NEXT: ret void