From 60448ce3c9eeee98c4c200f64752942a77c12885 Mon Sep 17 00:00:00 2001
From: chenqy930 <chenqiuyao@huawei.com>
Date: Mon, 18 Jul 2022 15:38:24 +0800
Subject: [PATCH] Implement insn rethrow for es2abc

Issue: I5IV68
Signed-off-by: chenqy930 <chenqiuyao@huawei.com>
Change-Id: Ic35c4d07ead555cdf6cee5fd04c2eddb3ca8828d
---
 es2panda/compiler/core/pandagen.cpp | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/es2panda/compiler/core/pandagen.cpp b/es2panda/compiler/core/pandagen.cpp
index 7cf1bb96f5..972c8b710b 100644
--- a/es2panda/compiler/core/pandagen.cpp
+++ b/es2panda/compiler/core/pandagen.cpp
@@ -825,7 +825,25 @@ void PandaGen::EmitThrow(const ir::AstNode *node)
 
 void PandaGen::EmitRethrow(const ir::AstNode *node)
 {
-    // TODO: rethrow in try-catch
+    RegScope rs(this);
+    auto *skipThrow = AllocLabel();
+    auto *doThrow = AllocLabel();
+
+    VReg exception = AllocReg();
+    StoreAccumulator(node, exception);
+
+    VReg hole = AllocReg();
+    StoreConst(node, hole, Constant::JS_HOLE);
+
+    LoadAccumulator(node, exception);
+    ra_.Emit<EcmaNoteqdyn>(node, hole);
+    sa_.Emit<Jeqz>(node, skipThrow);
+
+    SetLabel(node, doThrow);
+    LoadAccumulator(node, exception);
+    sa_.Emit<EcmaThrowdyn>(node);
+
+    SetLabel(node, skipThrow);
 }
 
 void PandaGen::EmitReturn(const ir::AstNode *node)
-- 
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