From aafdd314442c903815f6fdf6072b001c25ae85c5 Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Sun, 25 Mar 2018 18:24:06 +0200
Subject: Bug 1357075 - Pad a nop to unwind to the scope just before a
 destructuring iterator close trynote

Issue #74
---
 js/src/jit/BaselineCompiler.cpp | 6 ++++++
 js/src/jit/BaselineCompiler.h   | 7 ++++---
 js/src/jit/IonBuilder.cpp       | 1 +
 3 files changed, 11 insertions(+), 3 deletions(-)

(limited to 'js/src/jit')

diff --git a/js/src/jit/BaselineCompiler.cpp b/js/src/jit/BaselineCompiler.cpp
index 07d8e629d..3fa5a80ed 100644
--- a/js/src/jit/BaselineCompiler.cpp
+++ b/js/src/jit/BaselineCompiler.cpp
@@ -1062,6 +1062,12 @@ BaselineCompiler::emit_JSOP_NOP_DESTRUCTURING()
     return true;
 }
 
+bool
+BaselineCompiler::emit_JSOP_TRY_DESTRUCTURING_ITERCLOSE()
+{
+    return true;
+}
+
 bool
 BaselineCompiler::emit_JSOP_LABEL()
 {
diff --git a/js/src/jit/BaselineCompiler.h b/js/src/jit/BaselineCompiler.h
index 0bacf6f18..6b5bf009e 100644
--- a/js/src/jit/BaselineCompiler.h
+++ b/js/src/jit/BaselineCompiler.h
@@ -226,7 +226,7 @@ namespace jit {
     _(JSOP_SPREADSUPERCALL)    \
     _(JSOP_THROWSETCONST)      \
     _(JSOP_THROWSETALIASEDCONST) \
-    _(JSOP_THROWSETCALLEE) \
+    _(JSOP_THROWSETCALLEE)     \
     _(JSOP_INITHIDDENPROP_GETTER) \
     _(JSOP_INITHIDDENPROP_SETTER) \
     _(JSOP_INITHIDDENELEM)     \
@@ -234,8 +234,9 @@ namespace jit {
     _(JSOP_INITHIDDENELEM_SETTER) \
     _(JSOP_CHECKOBJCOERCIBLE)  \
     _(JSOP_DEBUGCHECKSELFHOSTED) \
-    _(JSOP_JUMPTARGET) \
-    _(JSOP_IS_CONSTRUCTING)
+    _(JSOP_JUMPTARGET)         \
+    _(JSOP_IS_CONSTRUCTING)    \
+    _(JSOP_TRY_DESTRUCTURING_ITERCLOSE)
 
 class BaselineCompiler : public BaselineCompilerSpecific
 {
diff --git a/js/src/jit/IonBuilder.cpp b/js/src/jit/IonBuilder.cpp
index ed09fb504..54d05cac4 100644
--- a/js/src/jit/IonBuilder.cpp
+++ b/js/src/jit/IonBuilder.cpp
@@ -1678,6 +1678,7 @@ IonBuilder::inspectOpcode(JSOp op)
     switch (op) {
       case JSOP_NOP:
       case JSOP_NOP_DESTRUCTURING:
+      case JSOP_TRY_DESTRUCTURING_ITERCLOSE:
       case JSOP_LINENO:
       case JSOP_LOOPENTRY:
       case JSOP_JUMPTARGET:
-- 
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