From 51ae8299d9ac9ff2961d7414e0fe1f544c9297ed Mon Sep 17 00:00:00 2001
From: Ben Vanik <ben.vanik@gmail.com>
Date: Sun, 26 Jan 2014 03:54:50 -0800
Subject: [PATCH] Fixing stack size.

---
 src/alloy/backend/x64/lowering/lowering_sequences.cc | 1 +
 src/alloy/backend/x64/x64_code_cache.cc              | 4 ++--
 src/alloy/backend/x64/x64_emitter.cc                 | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/alloy/backend/x64/lowering/lowering_sequences.cc b/src/alloy/backend/x64/lowering/lowering_sequences.cc
index 4d493663a..a7f924810 100644
--- a/src/alloy/backend/x64/lowering/lowering_sequences.cc
+++ b/src/alloy/backend/x64/lowering/lowering_sequences.cc
@@ -60,6 +60,7 @@ void IndirectCallThunk(void* raw_context, uint8_t* membase,
                        uint64_t target_address) {
   // TODO(benvanik): generate this thunk at runtime? or a shim?
   auto thread_state = *((ThreadState**)raw_context);
+  XEASSERTALWAYS();
 }
 void IssueCallIndirect(X64Emitter& e, Value* target, uint32_t flags) {
   Reg64 r;
diff --git a/src/alloy/backend/x64/x64_code_cache.cc b/src/alloy/backend/x64/x64_code_cache.cc
index 854e6f699..76398989b 100644
--- a/src/alloy/backend/x64/x64_code_cache.cc
+++ b/src/alloy/backend/x64/x64_code_cache.cc
@@ -216,7 +216,7 @@ void X64CodeChunk::AddTableEntry(uint8_t* code, size_t code_size) {
   // TODO(benvanik): take as parameters?
   bool has_prolog = false;
   uint8_t prolog_size = 4;
-  uint8_t stack_bytes = 16;
+  uint8_t stack_bytes = 64;
 
   // http://msdn.microsoft.com/en-us/library/ddssxxy8.aspx
   UNWIND_INFO* unwind_info = (UNWIND_INFO*)(buffer + unwind_info_offset);
@@ -231,7 +231,7 @@ void X64CodeChunk::AddTableEntry(uint8_t* code, size_t code_size) {
   auto& code_0 = unwind_info->UnwindCode[0];
   code_0.CodeOffset = 4; // end of instruction + 1 == offset of next instruction
   code_0.UnwindOp = UWOP_ALLOC_SMALL;
-  code_0.OpInfo = stack_bytes;
+  code_0.OpInfo = stack_bytes / 8 - 1;
   XEASSERT(stack_bytes < 128);
 
   // Add entry.
diff --git a/src/alloy/backend/x64/x64_emitter.cc b/src/alloy/backend/x64/x64_emitter.cc
index d72ad91b8..13c832621 100644
--- a/src/alloy/backend/x64/x64_emitter.cc
+++ b/src/alloy/backend/x64/x64_emitter.cc
@@ -120,7 +120,7 @@ int X64Emitter::Emit(HIRBuilder* builder) {
   //     X64CodeCache, which dynamically generates exception information.
   //     Adding or changing anything here must be matched!
   const bool emit_prolog = false;
-  const size_t stack_size = 16;
+  const size_t stack_size = 64;
   if (emit_prolog) {
     sub(rsp, stack_size);
     // TODO(benvanik): save registers.