compiler: add aliases for many hashing packages

This commit adds support for the following packages:

  - crypto/md5
  - crypto/sha1
  - crypto/sha256
  - crypto/sha512

They would normally need assembly implementations, but with these
aliases they already work everywhere.

Makefile

@@ -190,6 +190,10 @@ TEST_PACKAGES = \
 	container/list \
 	container/ring \
 	crypto/des \
+	crypto/md5 \
+	crypto/sha1 \
+	crypto/sha256 \
+	crypto/sha512 \
 	encoding \
 	encoding/ascii85 \
 	encoding/base32 \

compiler/alias.go

@@ -15,6 +15,13 @@ package compiler
 import "tinygo.org/x/go-llvm"
 
 var stdlibAliases = map[string]string{
+	// crypto packages
+	"crypto/md5.block":         "crypto/md5.blockGeneric",
+	"crypto/sha1.block":        "crypto/sha1.blockGeneric",
+	"crypto/sha1.blockAMD64":   "crypto/sha1.blockGeneric",
+	"crypto/sha256.block":      "crypto/sha256.blockGeneric",
+	"crypto/sha512.blockAMD64": "crypto/sha512.blockGeneric",
+
 	// math package
 	"math.Asin":      "math.asin",
 	"math.Asinh":     "math.asinh",

compiler/compiler.go

@@ -23,7 +23,7 @@ import (
 // Version of the compiler pacakge. Must be incremented each time the compiler
 // package changes in a way that affects the generated LLVM module.
 // This version is independent of the TinyGo version number.
-const Version = 14 // last change: add math assembly aliases
+const Version = 15 // last change: add crypto assembly aliases
 
 func init() {
 	llvm.InitializeAllTargets()