runtime: MakeMap

internal/runtime/c/c.go

@@ -35,6 +35,9 @@ func AllocaCStr(s string) *int8
 //go:linkname Unreachable llgo.unreachable
 func Unreachable()
 
+//go:linkname Rand C.rand
+func Rand() C.int
+
 //go:linkname Malloc C.malloc
 func Malloc(size uintptr) unsafe.Pointer
 

internal/runtime/stubs.go

@@ -0,0 +1,39 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package runtime
+
+import (
+	"github.com/goplus/llgo/internal/runtime/c"
+)
+
+func fastrand() uint32 {
+	return uint32(c.Rand())
+	/* TODO(xsw):
+
+	mp := getg().m
+	// Implement wyrand: https://github.com/wangyi-fudan/wyhash
+	// Only the platform that math.Mul64 can be lowered
+	// by the compiler should be in this list.
+	if goarch.IsAmd64|goarch.IsArm64|goarch.IsPpc64|
+		goarch.IsPpc64le|goarch.IsMips64|goarch.IsMips64le|
+		goarch.IsS390x|goarch.IsRiscv64|goarch.IsLoong64 == 1 {
+		mp.fastrand += 0xa0761d6478bd642f
+		hi, lo := math.Mul64(mp.fastrand, mp.fastrand^0xe7037ed1a0b428db)
+		return uint32(hi ^ lo)
+	}
+
+	// Implement xorshift64+: 2 32-bit xorshift sequences added together.
+	// Shift triplet [17,7,16] was calculated as indicated in Marsaglia's
+	// Xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf
+	// This generator passes the SmallCrush suite, part of TestU01 framework:
+	// http://simul.iro.umontreal.ca/testu01/tu01.html
+	t := (*[2]uint32)(unsafe.Pointer(&mp.fastrand))
+	s1, s0 := t[0], t[1]
+	s1 ^= s1 << 17
+	s1 = s1 ^ s0 ^ s1>>7 ^ s0>>16
+	t[0], t[1] = s0, s1
+	return s0 + s1
+	*/
+}

internal/runtime/type.go

@@ -16,3 +16,21 @@ import (
 type _type = abi.Type
 
 type interfacetype = abi.InterfaceType
+
+type maptype = abi.MapType
+
+/*
+type arraytype = abi.ArrayType
+
+type chantype = abi.ChanType
+
+type slicetype = abi.SliceType
+
+type functype = abi.FuncType
+
+type ptrtype = abi.PtrType
+
+type name = abi.Name
+
+type structtype = abi.StructType
+*/

internal/runtime/z_map.go

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package runtime
+
+// Map represents a Go map.
+type Map = hmap
+
+// MakeSmallMap creates a new small map.
+func MakeSmallMap() *Map {
+	return makemap_small()
+}