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Begin work on Atomics for wasm32 (wait and notify intrinsics)

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gingerBill
2022-05-21 12:58:48 +01:00
parent 9eb4cbcbd2
commit e48f41165c
7 changed files with 224 additions and 9 deletions
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src/llvm_backend_proc.cpp
+45
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@@ -2187,6 +2187,51 @@ lbValue lb_build_builtin_proc(lbProcedure *p, Ast *expr, TypeAndValue const &tv,
return res;
}
case BuiltinProc_wasm_memory_atomic_wait32:
{
char const *name = "llvm.wasm.memory.atomic.wait32";
LLVMTypeRef types[1] = {
lb_type(p->module, t_u32),
};
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s", name, LLVMPrintTypeToString(types[0]));
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
Type *t_u32_ptr = alloc_type_pointer(t_u32);
LLVMValueRef args[3] = {};
args[0] = lb_emit_conv(p, lb_build_expr(p, ce->args[0]), t_u32_ptr).value;
args[1] = lb_emit_conv(p, lb_build_expr(p, ce->args[1]), t_u32).value;
args[2] = lb_emit_conv(p, lb_build_expr(p, ce->args[2]), t_i64).value;
lbValue res = {};
res.type = tv.type;
res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
return res;
}
case BuiltinProc_wasm_memory_atomic_notify32:
{
char const *name = "llvm.wasm.memory.atomic.notify";
LLVMTypeRef types[1] = {
lb_type(p->module, t_u32),
};
unsigned id = LLVMLookupIntrinsicID(name, gb_strlen(name));
GB_ASSERT_MSG(id != 0, "Unable to find %s", name, LLVMPrintTypeToString(types[0]));
LLVMValueRef ip = LLVMGetIntrinsicDeclaration(p->module->mod, id, types, gb_count_of(types));
Type *t_u32_ptr = alloc_type_pointer(t_u32);
LLVMValueRef args[2] = {};
args[0] = lb_emit_conv(p, lb_build_expr(p, ce->args[0]), t_u32_ptr).value;
args[1] = lb_emit_conv(p, lb_build_expr(p, ce->args[1]), t_u32).value;
lbValue res = {};
res.type = tv.type;
res.value = LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
return res;
}
}
GB_PANIC("Unhandled built-in procedure %.*s", LIT(builtin_procs[id].name));