test: add GOROOT runner baseline on main

.github/workflows/goroot.yml

@@ -0,0 +1,132 @@
+name: GOROOT
+
+on:
+  push:
+    branches:
+      - "**"
+      - "!dependabot/**"
+      - "!xgopilot/**"
+  pull_request:
+    branches: ["**"]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  goroot:
+    name: GOROOT (${{ matrix.os }}, Go ${{ matrix.go-version }}, shard ${{ matrix.shard-label }})
+    continue-on-error: ${{ matrix.required != 'true' }}
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macos-latest
+            llvm: 19
+            go-version: "1.24.11"
+            shard-index: "0"
+            shard-total: "2"
+            shard-label: "0/2"
+            required: "false"
+          - os: macos-latest
+            llvm: 19
+            go-version: "1.24.11"
+            shard-index: "1"
+            shard-total: "2"
+            shard-label: "1/2"
+            required: "false"
+          - os: ubuntu-latest
+            llvm: 19
+            go-version: "1.24.11"
+            shard-index: "0"
+            shard-total: "2"
+            shard-label: "0/2"
+            required: "false"
+          - os: ubuntu-latest
+            llvm: 19
+            go-version: "1.24.11"
+            shard-index: "1"
+            shard-total: "2"
+            shard-label: "1/2"
+            required: "false"
+          - os: macos-latest
+            llvm: 19
+            go-version: "1.25.0"
+            shard-index: "0"
+            shard-total: "2"
+            shard-label: "0/2"
+            required: "true"
+          - os: macos-latest
+            llvm: 19
+            go-version: "1.25.0"
+            shard-index: "1"
+            shard-total: "2"
+            shard-label: "1/2"
+            required: "true"
+          - os: ubuntu-latest
+            llvm: 19
+            go-version: "1.25.0"
+            shard-index: "0"
+            shard-total: "2"
+            shard-label: "0/2"
+            required: "true"
+          - os: ubuntu-latest
+            llvm: 19
+            go-version: "1.25.0"
+            shard-index: "1"
+            shard-total: "2"
+            shard-label: "1/2"
+            required: "true"
+          - os: macos-latest
+            llvm: 19
+            go-version: "1.26.0"
+            shard-index: "0"
+            shard-total: "2"
+            shard-label: "0/2"
+            required: "false"
+          - os: macos-latest
+            llvm: 19
+            go-version: "1.26.0"
+            shard-index: "1"
+            shard-total: "2"
+            shard-label: "1/2"
+            required: "false"
+          - os: ubuntu-latest
+            llvm: 19
+            go-version: "1.26.0"
+            shard-index: "0"
+            shard-total: "2"
+            shard-label: "0/2"
+            required: "false"
+          - os: ubuntu-latest
+            llvm: 19
+            go-version: "1.26.0"
+            shard-index: "1"
+            shard-total: "2"
+            shard-label: "1/2"
+            required: "false"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install dependencies
+        uses: ./.github/actions/setup-deps
+        with:
+          llvm-version: ${{ matrix.llvm }}
+
+      - name: Set up Go
+        uses: ./.github/actions/setup-go
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Show toolchain versions
+        run: |
+          go version
+          clang --version
+
+      - name: Run GOROOT runner
+        run: |
+          bash dev/test_goroot.sh -- \
+            -shard-index "${{ matrix.shard-index }}" \
+            -shard-total "${{ matrix.shard-total }}"

.github/workflows/llgo.yml

@@ -47,7 +47,7 @@ jobs:
           - macos-15-intel
           - ubuntu-latest
         llvm: [19]
-        go: ["1.21.13", "1.24.2"]
+        go: ["1.21.13", "1.24.2", "1.26.0"]
     runs-on: ${{matrix.os}}
     steps:
       - uses: actions/checkout@v6
@@ -97,9 +97,15 @@ jobs:
           pip3.12 install --break-system-packages "${py_deps[@]}"
 
       - name: Set up Go for build
+        if: ${{ !startsWith(matrix.go, '1.26') }}
         uses: ./.github/actions/setup-go
         with:
           go-version: "1.24.2"
+      - name: Set up Go 1.26 for build
+        if: ${{ startsWith(matrix.go, '1.26') }}
+        uses: ./.github/actions/setup-go
+        with:
+          go-version: "1.26.0"
 
       - name: Install
         run: |
@@ -192,7 +198,7 @@ jobs:
           - macos-latest
           - ubuntu-latest
         llvm: [19]
-        go: ["1.24.2"]
+        go: ["1.24.2", "1.26.0"]
         shard: ["0", "1", "2", "3"]
     runs-on: ${{matrix.os}}
     steps:
@@ -210,9 +216,15 @@ jobs:
           pip3.12 install --break-system-packages "${py_deps[@]}"
 
       - name: Set up Go for build
+        if: ${{ !startsWith(matrix.go, '1.26') }}
         uses: ./.github/actions/setup-go
         with:
           go-version: "1.24.2"
+      - name: Set up Go 1.26 for build
+        if: ${{ startsWith(matrix.go, '1.26') }}
+        uses: ./.github/actions/setup-go
+        with:
+          go-version: "1.26.0"
 
       - name: Install
         run: |
@@ -268,7 +280,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest]
         llvm: [19]
-        go: ["1.21.13", "1.24.2"]
+        go: ["1.21.13", "1.24.2", "1.26.0"]
     runs-on: ${{matrix.os}}
     steps:
       - uses: actions/checkout@v6
@@ -277,10 +289,16 @@ jobs:
         with:
           llvm-version: ${{matrix.llvm}}
 
-      - name: Set up Go 1.23 for building llgo
+      - name: Set up Go for build
+        if: ${{ !startsWith(matrix.go, '1.26') }}
         uses: ./.github/actions/setup-go
         with:
           go-version: "1.24.2"
+      - name: Set up Go 1.26 for build
+        if: ${{ startsWith(matrix.go, '1.26') }}
+        uses: ./.github/actions/setup-go
+        with:
+          go-version: "1.26.0"
 
       - name: Install llgo
         run: |
@@ -293,28 +311,28 @@ jobs:
           go-version: ${{matrix.go}}
 
       - name: Test Hello World with go.mod 1.21
-        if: startsWith(matrix.go, '1.21') || startsWith(matrix.go, '1.22') || startsWith(matrix.go, '1.23') || startsWith(matrix.go, '1.24')
+        if: startsWith(matrix.go, '1.21') || startsWith(matrix.go, '1.22') || startsWith(matrix.go, '1.23') || startsWith(matrix.go, '1.24') || startsWith(matrix.go, '1.25') || startsWith(matrix.go, '1.26')
         uses: ./.github/actions/test-helloworld
         with:
           go-version: ${{matrix.go}}
           mod-version: "1.21"
 
       - name: Test Hello World with go.mod 1.22
-        if: startsWith(matrix.go, '1.22') || startsWith(matrix.go, '1.23') || startsWith(matrix.go, '1.24')
+        if: startsWith(matrix.go, '1.22') || startsWith(matrix.go, '1.23') || startsWith(matrix.go, '1.24') || startsWith(matrix.go, '1.25') || startsWith(matrix.go, '1.26')
         uses: ./.github/actions/test-helloworld
         with:
           go-version: ${{matrix.go}}
           mod-version: "1.22"
 
       - name: Test Hello World with go.mod 1.23
-        if: startsWith(matrix.go, '1.23') || startsWith(matrix.go, '1.24')
+        if: startsWith(matrix.go, '1.23') || startsWith(matrix.go, '1.24') || startsWith(matrix.go, '1.25') || startsWith(matrix.go, '1.26')
         uses: ./.github/actions/test-helloworld
         with:
           go-version: ${{matrix.go}}
           mod-version: "1.23"
 
       - name: Test Hello World with go.mod 1.24
-        if: startsWith(matrix.go, '1.24')
+        if: startsWith(matrix.go, '1.24') || startsWith(matrix.go, '1.25') || startsWith(matrix.go, '1.26')
         uses: ./.github/actions/test-helloworld
         with:
           go-version: ${{matrix.go}}

cl/compile_test.go

@@ -384,3 +384,40 @@ _llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
 }
 `)
 }
+
+func TestIntrinsicBoolToUint8(t *testing.T) {
+	testCompile(t, `package foo
+
+import _ "unsafe"
+
+//go:linkname boolToUint8 llgo.boolToUint8
+func boolToUint8(b bool) uint8
+
+func use(b bool) uint8 {
+	return boolToUint8(b)
+}
+`, `; ModuleID = 'foo'
+source_filename = "foo"
+
+@"foo.init$guard" = global i1 false, align 1
+
+define void @foo.init() {
+_llgo_0:
+  %0 = load i1, ptr @"foo.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"foo.init$guard", align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define i8 @foo.use(i1 %0) {
+_llgo_0:
+  %1 = select i1 %0, i8 1, i8 0
+  ret i8 %1
+}
+`)
+}

cl/import.go

@@ -552,6 +552,7 @@ const (
 	llgoSyscall            = llgoInstrBase + 0x44
 	llgoAtomicCmpXchgOK    = llgoInstrBase + 0x45
 	llgoAtomicAddReturnNew = llgoInstrBase + 0x46
+	llgoBoolToUint8        = llgoInstrBase + 0x47
 
 	llgoAtomicOpLast = llgoAtomicOpBase + int(llssa.OpUMin)
 )

cl/instr.go

@@ -551,6 +551,16 @@ func (p *context) atomicCmpXchgOK(b llssa.Builder, args []llssa.Expr) llssa.Expr
 	return b.Extract(ret, 1)
 }
 
+func (p *context) boolToUint8(b llssa.Builder, args []llssa.Expr) llssa.Expr {
+	if len(args) == 1 {
+		retType := p.type_(types.Typ[types.Uint8], llssa.InGo)
+		one := p.prog.IntVal(1, retType)
+		zero := p.prog.Zero(retType)
+		return b.SelectValue(args[0], one, zero)
+	}
+	panic("boolToUint8(b bool) uint8: invalid arguments")
+}
+
 // -----------------------------------------------------------------------------
 
 var llgoInstrs = map[string]int{
@@ -567,6 +577,7 @@ var llgoInstrs = map[string]int{
 	"funcPCABI0":  llgoFuncPCABI0,
 	"skip":        llgoSkip,
 	"syscall":     llgoSyscall,
+	"boolToUint8": llgoBoolToUint8,
 	"pystr":       llgoPyStr,
 	"pyList":      llgoPyList,
 	"pyTuple":     llgoPyTuple,
@@ -790,6 +801,11 @@ func (p *context) call(b llssa.Builder, act llssa.DoAction, call *ssa.CallCommon
 			}
 		case llgoSyscall:
 			ret = p.syscallIntrinsic(b, args, call.Signature().Results())
+		case llgoBoolToUint8:
+			args := p.compileValues(b, args, kind)
+			ret = b.Do(act, llssa.Nil, func(b llssa.Builder, _ llssa.Expr, args ...llssa.Expr) llssa.Expr {
+				return p.boolToUint8(b, args)
+			}, args...)
 		case llgoUnreachable: // func unreachable()
 			b.Unreachable()
 		case llgoAtomicLoad:

dev/test_goroot.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+runner_args=()
+goroots=()
+after_delim=0
+for arg in "$@"; do
+	if [[ "$arg" == "--" ]]; then
+		after_delim=1
+		continue
+	fi
+	if [[ $after_delim -eq 1 ]]; then
+		runner_args+=("$arg")
+	else
+		goroots+=("$arg")
+	fi
+done
+
+if [[ ${#goroots[@]} -eq 0 ]]; then
+	if [[ -n "${LLGO_GOROOT_MATRIX:-}" ]]; then
+		IFS=':' read -r -a goroots <<<"${LLGO_GOROOT_MATRIX}"
+	else
+		goroots=("$(go env GOROOT)")
+	fi
+fi
+
+for goroot in "${goroots[@]}"; do
+	go_bin="$goroot/bin/go"
+	if [[ ! -x "$go_bin" ]]; then
+		echo "error: missing go binary: $go_bin" >&2
+		exit 2
+	fi
+	version="$("$go_bin" env GOVERSION)"
+	echo "==== $version ($goroot) ===="
+	(
+		cd "$repo_root"
+		go test ./test/goroot -count=1 -timeout 90m -args -goroot "$goroot" "${runner_args[@]}"
+	)
+done

go.mod

@@ -17,7 +17,7 @@ require (
 )
 
 require (
-	github.com/goplus/plan9asm v0.0.0-20260307134905-822503d6bf44
+	github.com/goplus/plan9asm v0.1.1-0.20260327232615-ec1a30b9181f
 	github.com/marcinbor85/gohex v0.0.0-20210308104911-55fb1c624d84
 	github.com/mattn/go-tty v0.0.7
 	github.com/sigurn/crc16 v0.0.0-20240131213347-83fcde1e29d1

go.sum

@@ -22,6 +22,8 @@ github.com/goplus/plan9asm v0.0.0-20260307044640-a5f1e3b27fc1 h1:hlVAtc3x34x6CQo
 github.com/goplus/plan9asm v0.0.0-20260307044640-a5f1e3b27fc1/go.mod h1:nnr49+IlbnOI5c0yb1fkbilBRcr50RPX0JAreDdYTUI=
 github.com/goplus/plan9asm v0.0.0-20260307134905-822503d6bf44 h1:zZXTz5CBO1uZIJGZSGWov5gE1CbulJ1QH6ruTMv3UdY=
 github.com/goplus/plan9asm v0.0.0-20260307134905-822503d6bf44/go.mod h1:gpS4VVNoRykYTtc8kPFBowraN5SrBj8lIjW8/lNjaG4=
+github.com/goplus/plan9asm v0.1.1-0.20260327232615-ec1a30b9181f h1:DICfzr9FWlZPnKJcS0tMnIRQ1oWk1sFU4S1uYJ0jOTo=
+github.com/goplus/plan9asm v0.1.1-0.20260327232615-ec1a30b9181f/go.mod h1:gpS4VVNoRykYTtc8kPFBowraN5SrBj8lIjW8/lNjaG4=
 github.com/marcinbor85/gohex v0.0.0-20210308104911-55fb1c624d84 h1:hyAgCuG5nqTMDeUD8KZs7HSPs6KprPgPP8QmGV8nyvk=
 github.com/marcinbor85/gohex v0.0.0-20210308104911-55fb1c624d84/go.mod h1:Pb6XcsXyropB9LNHhnqaknG/vEwYztLkQzVCHv8sQ3M=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=