}
-LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
- // The control instruction marking the end of a block that completed
- // abruptly (e.g., threw an exception). There is nothing specific to do.
- return NULL;
-}
-
-
LInstruction* LChunkBuilder::DoThrow(HThrow* instr) {
LOperand* value = UseFixed(instr->value(), r0);
return MarkAsCall(new(zone()) LThrow(value), instr);
live->Clear();
for (int i = 0; i < enter->return_targets()->length(); ++i) {
int return_id = enter->return_targets()->at(i)->block_id();
- // When an AbnormalExit is involved, it can happen that the return
- // target block doesn't actually exist.
- if (return_id < live_at_block_start_.length()) {
- live->Union(*live_at_block_start_[return_id]);
- }
+ live->Union(*live_at_block_start_[return_id]);
}
last_simulate_ = NULL;
break;
#define HYDROGEN_CONCRETE_INSTRUCTION_LIST(V) \
- V(AbnormalExit) \
V(AccessArgumentsAt) \
V(Add) \
V(Allocate) \
};
-class HAbnormalExit V8_FINAL : public HTemplateControlInstruction<0, 0> {
- public:
- virtual Representation RequiredInputRepresentation(int index) V8_OVERRIDE {
- return Representation::None();
- }
-
- DECLARE_CONCRETE_INSTRUCTION(AbnormalExit)
-};
-
-
class HUnaryOperation : public HTemplateInstruction<1> {
public:
HUnaryOperation(HValue* value, HType type = HType::Tagged())
HThrow* instr = Add<HThrow>(value);
instr->set_position(expr->position());
Add<HSimulate>(expr->id());
- current_block()->FinishExit(new(zone()) HAbnormalExit);
- set_current_block(NULL);
}
}
-LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
- // The control instruction marking the end of a block that completed
- // abruptly (e.g., threw an exception). There is nothing specific to do.
- return NULL;
-}
-
-
LInstruction* LChunkBuilder::DoThrow(HThrow* instr) {
LOperand* context = UseFixed(instr->context(), esi);
LOperand* value = UseFixed(instr->value(), eax);
}
-LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
- // The control instruction marking the end of a block that completed
- // abruptly (e.g., threw an exception). There is nothing specific to do.
- return NULL;
-}
-
-
LInstruction* LChunkBuilder::DoThrow(HThrow* instr) {
LOperand* value = UseFixed(instr->value(), a0);
return MarkAsCall(new(zone()) LThrow(value), instr);
}
-LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
- // The control instruction marking the end of a block that completed
- // abruptly (e.g., threw an exception). There is nothing specific to do.
- return NULL;
-}
-
-
LInstruction* LChunkBuilder::DoThrow(HThrow* instr) {
LOperand* value = UseFixed(instr->value(), rax);
return MarkAsCall(new(zone()) LThrow(value), instr);
--- /dev/null
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+
+function bailout() { throw "bailout"; }
+var global;
+
+function foo(x, fun) {
+ var a = x + 1;
+ var b = x + 2; // Need another Simulate to fold the first one into.
+ global = true; // Need a side effect to deopt to.
+ fun();
+ return a;
+}
+
+assertThrows("foo(1, bailout)");
+assertThrows("foo(1, bailout)");
+%OptimizeFunctionOnNextCall(foo);
+assertThrows("foo(1, bailout)");
+assertEquals(2, foo(1, function() {}));