From 88b29589d67526320ea400c0abf2110db7a626eb Mon Sep 17 00:00:00 2001
From: deadprogram <ron@hybridgroup.com>
Date: Wed, 4 Oct 2023 19:26:49 +0200
Subject: [PATCH] targets: increase default stack size to 64k for wasi/wasm
 targets

Signed-off-by: deadprogram <ron@hybridgroup.com>
---
 compileopts/target.go                        |  2 +-
 compiler/testdata/goroutine-wasm-asyncify.ll | 10 +++++-----
 targets/wasi.json                            |  2 +-
 targets/wasm.json                            |  2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/compileopts/target.go b/compileopts/target.go
index 82ee2e3b..92561f1e 100644
--- a/compileopts/target.go
+++ b/compileopts/target.go
@@ -344,7 +344,7 @@ func defaultTarget(goos, goarch, triple string) (*TargetSpec, error) {
 		spec.Linker = "wasm-ld"
 		spec.RTLib = "compiler-rt"
 		spec.Libc = "wasi-libc"
-		spec.DefaultStackSize = 1024 * 32 // 32kB
+		spec.DefaultStackSize = 1024 * 64 // 64kB
 		spec.LDFlags = append(spec.LDFlags,
 			"--stack-first",
 			"--no-demangle",
diff --git a/compiler/testdata/goroutine-wasm-asyncify.ll b/compiler/testdata/goroutine-wasm-asyncify.ll
index 3d81b316..db7ce187 100644
--- a/compiler/testdata/goroutine-wasm-asyncify.ll
+++ b/compiler/testdata/goroutine-wasm-asyncify.ll
@@ -21,7 +21,7 @@ entry:
 ; Function Attrs: nounwind
 define hidden void @main.regularFunctionGoroutine(ptr %context) unnamed_addr #2 {
 entry:
-  call void @"internal/task.start"(i32 ptrtoint (ptr @"main.regularFunction$gowrapper" to i32), ptr nonnull inttoptr (i32 5 to ptr), i32 32768, ptr undef) #9
+  call void @"internal/task.start"(i32 ptrtoint (ptr @"main.regularFunction$gowrapper" to i32), ptr nonnull inttoptr (i32 5 to ptr), i32 65536, ptr undef) #9
   ret void
 }
 
@@ -43,7 +43,7 @@ declare void @"internal/task.start"(i32, ptr, i32, ptr) #1
 ; Function Attrs: nounwind
 define hidden void @main.inlineFunctionGoroutine(ptr %context) unnamed_addr #2 {
 entry:
-  call void @"internal/task.start"(i32 ptrtoint (ptr @"main.inlineFunctionGoroutine$1$gowrapper" to i32), ptr nonnull inttoptr (i32 5 to ptr), i32 32768, ptr undef) #9
+  call void @"internal/task.start"(i32 ptrtoint (ptr @"main.inlineFunctionGoroutine$1$gowrapper" to i32), ptr nonnull inttoptr (i32 5 to ptr), i32 65536, ptr undef) #9
   ret void
 }
 
@@ -76,7 +76,7 @@ entry:
   store i32 5, ptr %0, align 4
   %1 = getelementptr inbounds { i32, ptr }, ptr %0, i32 0, i32 1
   store ptr %n, ptr %1, align 4
-  call void @"internal/task.start"(i32 ptrtoint (ptr @"main.closureFunctionGoroutine$1$gowrapper" to i32), ptr nonnull %0, i32 32768, ptr undef) #9
+  call void @"internal/task.start"(i32 ptrtoint (ptr @"main.closureFunctionGoroutine$1$gowrapper" to i32), ptr nonnull %0, i32 65536, ptr undef) #9
   %2 = load i32, ptr %n, align 4
   call void @runtime.printint32(i32 %2, ptr undef) #9
   ret void
@@ -113,7 +113,7 @@ entry:
   store ptr %fn.context, ptr %1, align 4
   %2 = getelementptr inbounds { i32, ptr, ptr }, ptr %0, i32 0, i32 2
   store ptr %fn.funcptr, ptr %2, align 4
-  call void @"internal/task.start"(i32 ptrtoint (ptr @main.funcGoroutine.gowrapper to i32), ptr nonnull %0, i32 32768, ptr undef) #9
+  call void @"internal/task.start"(i32 ptrtoint (ptr @main.funcGoroutine.gowrapper to i32), ptr nonnull %0, i32 65536, ptr undef) #9
   ret void
 }
 
@@ -167,7 +167,7 @@ entry:
   store i32 4, ptr %.repack1, align 4
   %2 = getelementptr inbounds { ptr, %runtime._string, ptr }, ptr %0, i32 0, i32 2
   store ptr %itf.typecode, ptr %2, align 4
-  call void @"internal/task.start"(i32 ptrtoint (ptr @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), ptr nonnull %0, i32 32768, ptr undef) #9
+  call void @"internal/task.start"(i32 ptrtoint (ptr @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), ptr nonnull %0, i32 65536, ptr undef) #9
   ret void
 }
 
diff --git a/targets/wasi.json b/targets/wasi.json
index 33b37a89..1d845c74 100644
--- a/targets/wasi.json
+++ b/targets/wasi.json
@@ -9,7 +9,7 @@
 	"libc":          "wasi-libc",
 	"rtlib":         "compiler-rt",
 	"scheduler":     "asyncify",
-	"default-stack-size": 32768,
+	"default-stack-size": 65536,
 	"cflags": [
 		"-mbulk-memory",
 		"-mnontrapping-fptoint",
diff --git a/targets/wasm.json b/targets/wasm.json
index 2b935678..050ee105 100644
--- a/targets/wasm.json
+++ b/targets/wasm.json
@@ -9,7 +9,7 @@
 	"libc":          "wasi-libc",
 	"rtlib":         "compiler-rt",
 	"scheduler":     "asyncify",
-	"default-stack-size": 32768,
+	"default-stack-size": 65536,
 	"cflags": [
 		"-mbulk-memory",
 		"-mnontrapping-fptoint",