From b04ac8df306c1fe9d78bad41060a5ad7ec4abbcb Mon Sep 17 00:00:00 2001
From: Li Jie <cpunion@gmail.com>
Date: Mon, 5 Aug 2024 16:43:36 +0800
Subject: [PATCH] ssa: comment unused coroutine builders

---
 ssa/coro.go    | 12 ++++++++++++
 ssa/package.go | 50 +++++++++++++++++++++++++-------------------------
 2 files changed, 37 insertions(+), 25 deletions(-)

diff --git a/ssa/coro.go b/ssa/coro.go
index 07f150d8..a1e35eaa 100644
--- a/ssa/coro.go
+++ b/ssa/coro.go
@@ -202,6 +202,7 @@ func (p Program) tyCoID() *types.Signature {
 	return p.coIDTy
 }
 
+/*
 // declare token @llvm.coro.id.async(i32 <context size>, i32 <align>, ptr <context arg>, ptr <async function pointer>)
 func (p Program) tyCoIDAsync() *types.Signature {
 	if p.coIDAsyncTy == nil {
@@ -240,6 +241,7 @@ func (p Program) tyCoIDRetconOnce() *types.Signature {
 	}
 	return p.coIDRetconOnceTy
 }
+*/
 
 // declare i1 @llvm.coro.end(ptr <handle>, i1 <unwind>, token <result.token>)
 func (p Program) tyCoEnd() *types.Signature {
@@ -254,6 +256,7 @@ func (p Program) tyCoEnd() *types.Signature {
 	return p.coEndTy
 }
 
+/*
 // TODO(lijie): varargs
 // declare token @llvm.coro.end.results(...)
 func (p Program) tyCoEndResults() *types.Signature {
@@ -265,6 +268,7 @@ func (p Program) tyCoEndResults() *types.Signature {
 func (p Program) tyCoEndAsync() *types.Signature {
 	panic("not implemented")
 }
+*/
 
 // declare i8 @llvm.coro.suspend(token <save>, i1 <final>)
 func (p Program) tyCoSuspend() *types.Signature {
@@ -279,6 +283,7 @@ func (p Program) tyCoSuspend() *types.Signature {
 	return p.coSuspendTy
 }
 
+/*
 // declare token @llvm.coro.save(ptr <handle>)
 func (p Program) tyCoSave() *types.Signature {
 	if p.coSaveTy == nil {
@@ -353,6 +358,7 @@ func (p Program) tyCoAwaitSuspendHandle() *types.Signature {
 	}
 	return p.coAwaitSuspendHandleTy
 }
+*/
 
 // -----------------------------------------------------------------------------
 
@@ -551,6 +557,7 @@ func (b Builder) CoID(align Expr, promise, coroAddr, fnAddrs Expr) Expr {
 	return b.Call(fn, align, promise, coroAddr, fnAddrs)
 }
 
+/*
 // declare token @llvm.coro.id.async(i32 <context size>, i32 <align>, ptr <context arg>, ptr <async function pointer>)
 func (b Builder) CoIDAsync(contextSize, align, contextArg, asyncFnPtr Expr) Expr {
 	if contextSize.Type != b.Prog.Int32() {
@@ -574,6 +581,7 @@ func (b Builder) CoIDRetconOnce(size, align, buffer, prototype, alloc, dealloc E
 	fn := b.Pkg.cFunc("llvm.coro.id.retcon.once", b.Prog.tyCoIDRetconOnce())
 	return b.Call(fn, size, align, buffer, prototype, alloc, dealloc)
 }
+*/
 
 // declare i1 @llvm.coro.end(ptr <handle>, i1 <unwind>, token <result.token>)
 func (b Builder) CoEnd(hdl Expr, unwind Expr, resultToken Expr) Expr {
@@ -581,6 +589,7 @@ func (b Builder) CoEnd(hdl Expr, unwind Expr, resultToken Expr) Expr {
 	return b.Call(fn, hdl, unwind, resultToken)
 }
 
+/*
 // declare token @llvm.coro.end.results(...)
 func (b Builder) CoEndResults(args []Expr) Expr {
 	fn := b.Pkg.cFunc("llvm.coro.end.results", b.Prog.tyCoEndResults())
@@ -593,6 +602,7 @@ func (b Builder) CoEndAsync(handle, unwind Expr, args ...Expr) Expr {
 	vargs := append([]Expr{handle, unwind}, args...)
 	return b.Call(fn, vargs...)
 }
+*/
 
 // declare i8 @llvm.coro.suspend(token <save>, i1 <final>)
 func (b Builder) coSuspend(save, final Expr) Expr {
@@ -629,6 +639,7 @@ func (b Builder) CoReturn(args ...Expr) {
 	b.SetBlock(nextBlk)
 }
 
+/*
 // declare token @llvm.coro.save(ptr <handle>)
 func (b Builder) CoSave(hdl Expr) Expr {
 	fn := b.Pkg.cFunc("llvm.coro.save", b.Prog.tyCoSave())
@@ -664,6 +675,7 @@ func (b Builder) CoAwaitSuspendHandle(awaiter, handle, f Expr) {
 	fn := b.Pkg.cFunc("llvm.coro.await.suspend.handle", b.Prog.tyCoAwaitSuspendHandle())
 	b.Call(fn, awaiter, handle, f)
 }
+*/
 
 func (b Builder) CoYield(setValueFn Function, value Expr, final Expr) {
 	if !b.async {
diff --git a/ssa/package.go b/ssa/package.go
index 1e6fc5ea..79a2acad 100644
--- a/ssa/package.go
+++ b/ssa/package.go
@@ -202,31 +202,31 @@ type aProgram struct {
 	coPromiseTy *types.Signature
 
 	// coroutine structure intrinsics (ordered by LLVM coroutine doc)
-	coSizeI32Ty              *types.Signature
-	coSizeI64Ty              *types.Signature
-	coAlignI32Ty             *types.Signature
-	coAlignI64Ty             *types.Signature
-	coBeginTy                *types.Signature
-	coFreeTy                 *types.Signature
-	coAllocTy                *types.Signature
-	coNoopTy                 *types.Signature
-	coFrameTy                *types.Signature
-	coIDTy                   *types.Signature
-	coIDAsyncTy              *types.Signature
-	coIDRetconTy             *types.Signature
-	coIDRetconOnceTy         *types.Signature
-	coEndTy                  *types.Signature
-	coEndResultsTy           *types.Signature
-	coEndAsyncTy             *types.Signature
-	coSuspendTy              *types.Signature
-	coSaveTy                 *types.Signature
-	coSuspendAsyncTy         *types.Signature
-	coPrepareAsyncTy         *types.Signature
-	coSuspendRetconTy        *types.Signature
-	coAwaitSuspendFunctionTy *types.Signature
-	coAwaitSuspendVoidTy     *types.Signature
-	coAwaitSuspendBoolTy     *types.Signature
-	coAwaitSuspendHandleTy   *types.Signature
+	coSizeI32Ty  *types.Signature
+	coSizeI64Ty  *types.Signature
+	coAlignI32Ty *types.Signature
+	coAlignI64Ty *types.Signature
+	coBeginTy    *types.Signature
+	coFreeTy     *types.Signature
+	coAllocTy    *types.Signature
+	coNoopTy     *types.Signature
+	coFrameTy    *types.Signature
+	coIDTy       *types.Signature
+	// coIDAsyncTy              *types.Signature
+	// coIDRetconTy             *types.Signature
+	// coIDRetconOnceTy         *types.Signature
+	coEndTy *types.Signature
+	// coEndResultsTy           *types.Signature
+	// coEndAsyncTy             *types.Signature
+	coSuspendTy *types.Signature
+	// coSaveTy                 *types.Signature
+	// coSuspendAsyncTy         *types.Signature
+	// coPrepareAsyncTy         *types.Signature
+	// coSuspendRetconTy        *types.Signature
+	// coAwaitSuspendFunctionTy *types.Signature
+	// coAwaitSuspendVoidTy     *types.Signature
+	// coAwaitSuspendBoolTy     *types.Signature
+	// coAwaitSuspendHandleTy   *types.Signature
 
 	paramObjPtr_ *types.Var