// Thread-local storage
TARGET_BUILTIN(__builtin_wasm_tls_size, "z", "nc", "bulk-memory")
+TARGET_BUILTIN(__builtin_wasm_tls_base, "v*", "n", "bulk-memory")
// Floating point min/max
BUILTIN(__builtin_wasm_min_f32, "fff", "nc")
Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_tls_size, ResultType);
return Builder.CreateCall(Callee);
}
+ case WebAssembly::BI__builtin_wasm_tls_base: {
+ Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_tls_base);
+ return Builder.CreateCall(Callee);
+ }
case WebAssembly::BI__builtin_wasm_throw: {
Value *Tag = EmitScalarExpr(E->getArg(0));
Value *Obj = EmitScalarExpr(E->getArg(1));
// WEBASSEMBLY64: call i64 @llvm.wasm.tls.size.i64()
}
+void *tls_base() {
+ return __builtin_wasm_tls_base();
+ // WEBASSEMBLY: call i8* @llvm.wasm.tls.base()
+}
+
void throw(void *obj) {
return __builtin_wasm_throw(0, obj);
// WEBASSEMBLY32: call void @llvm.wasm.throw(i32 0, i8* %{{.*}})
[],
[IntrNoMem, IntrSpeculatable]>;
+def int_wasm_tls_base :
+ Intrinsic<[llvm_ptr_ty],
+ [],
+ [IntrReadMem]>;
+
} // TargetPrefix = "wasm"
}
break;
}
+ case ISD::INTRINSIC_W_CHAIN: {
+ unsigned IntNo = cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue();
+ switch (IntNo) {
+ case Intrinsic::wasm_tls_base: {
+ MVT PtrVT = TLI->getPointerTy(CurDAG->getDataLayout());
+ assert(PtrVT == MVT::i32 && "only wasm32 is supported for now");
+
+ MachineSDNode *TLSBase = CurDAG->getMachineNode(
+ WebAssembly::GLOBAL_GET_I32, DL, MVT::i32,
+ CurDAG->getTargetExternalSymbol("__tls_base", PtrVT),
+ Node->getOperand(0));
+ ReplaceNode(Node, TLSBase);
+ return;
+ }
+ }
+ break;
+ }
default:
break;
ret i32 %1
}
+; CHECK-LABEL: tls_base:
+; CHECK-NEXT: .functype tls_base () -> (i32)
+define i8* @tls_base() {
+; CHECK-NEXT: global.get __tls_base
+; CHECK-NEXT: return
+ %1 = call i8* @llvm.wasm.tls.base()
+ ret i8* %1
+}
+
; CHECK: .type tls,@object
; TLS-NEXT: .section .tbss.tls,"",@
; NO-TLS-NEXT: .section .bss.tls,"",@
@tls = internal thread_local global i32 0
declare i32 @llvm.wasm.tls.size.i32()
+declare i8* @llvm.wasm.tls.base()