const char* descriptor = dex_file_->StringDataByIdx(proto_id.shorty_idx_);
Primitive::Type return_type = Primitive::GetType(descriptor[0]);
bool is_instance_call = invoke_type != kStatic;
- size_t number_of_arguments = strlen(descriptor) - (is_instance_call ? 0 : 1);
+ // Remove the return type from the 'proto'.
+ size_t number_of_arguments = strlen(descriptor) - 1;
+ if (is_instance_call) {
+ // One extra argument for 'this'.
+ ++number_of_arguments;
+ }
MethodReference target_method(dex_file_, method_idx);
uintptr_t direct_code;
if (!compiler_driver_->ComputeInvokeInfo(dex_compilation_unit_, dex_pc, true, true,
&optimized_invoke_type, &target_method, &table_index,
&direct_code, &direct_method)) {
- VLOG(compiler) << "Did not compile " << PrettyMethod(method_idx, *dex_file_)
+ VLOG(compiler) << "Did not compile "
+ << PrettyMethod(dex_compilation_unit_->GetDexMethodIndex(), *dex_file_)
<< " because a method call could not be resolved";
MaybeRecordStat(MethodCompilationStat::kNotCompiledUnresolvedMethod);
return false;
start_index = 1;
}
- uint32_t descriptor_index = 1;
+ uint32_t descriptor_index = 1; // Skip the return type.
uint32_t argument_index = start_index;
if (is_string_init) {
start_index = 1;
}
- for (size_t i = start_index; i < number_of_vreg_arguments; i++, argument_index++) {
+ for (size_t i = start_index;
+ // Make sure we don't go over the expected arguments or over the number of
+ // dex registers given. If the instruction was seen as dead by the verifier,
+ // it hasn't been properly checked.
+ (i < number_of_vreg_arguments) && (argument_index < number_of_arguments);
+ i++, argument_index++) {
Primitive::Type type = Primitive::GetType(descriptor[descriptor_index++]);
bool is_wide = (type == Primitive::kPrimLong) || (type == Primitive::kPrimDouble);
- // Longs and doubles should be in pairs, that is, sequential registers. The verifier should
- // reject any class where this is violated.
- DCHECK(is_range || !is_wide || (args[i] + 1 == args[i + 1]))
- << "Non sequential register pair in " << dex_compilation_unit_->GetSymbol()
- << " at " << dex_pc;
+ if (!is_range
+ && is_wide
+ && ((i + 1 == number_of_vreg_arguments) || (args[i] + 1 != args[i + 1]))) {
+ // Longs and doubles should be in pairs, that is, sequential registers. The verifier should
+ // reject any class where this is violated. However, the verifier only does these checks
+ // on non trivially dead instructions, so we just bailout the compilation.
+ VLOG(compiler) << "Did not compile "
+ << PrettyMethod(dex_compilation_unit_->GetDexMethodIndex(), *dex_file_)
+ << " because of non-sequential dex register pair in wide argument";
+ MaybeRecordStat(MethodCompilationStat::kNotCompiledMalformedOpcode);
+ return false;
+ }
HInstruction* arg = LoadLocal(is_range ? register_index + i : args[i], type);
invoke->SetArgumentAt(argument_index, arg);
if (is_wide) {
i++;
}
}
- DCHECK_EQ(argument_index, number_of_arguments);
+
+ if (argument_index != number_of_arguments) {
+ VLOG(compiler) << "Did not compile "
+ << PrettyMethod(dex_compilation_unit_->GetDexMethodIndex(), *dex_file_)
+ << " because of wrong number of arguments in invoke instruction";
+ MaybeRecordStat(MethodCompilationStat::kNotCompiledMalformedOpcode);
+ return false;
+ }
if (invoke->IsInvokeStaticOrDirect()) {
invoke->SetArgumentAt(argument_index, graph_->GetCurrentMethod());
kNotCompiledClassNotVerified,
kNotCompiledHugeMethod,
kNotCompiledLargeMethodNoBranches,
+ kNotCompiledMalformedOpcode,
kNotCompiledNoCodegen,
kNotCompiledPathological,
kNotCompiledSpaceFilter,
case kNotCompiledClassNotVerified : return "kNotCompiledClassNotVerified";
case kNotCompiledHugeMethod : return "kNotCompiledHugeMethod";
case kNotCompiledLargeMethodNoBranches : return "kNotCompiledLargeMethodNoBranches";
+ case kNotCompiledMalformedOpcode : return "kNotCompiledMalformedOpcode";
case kNotCompiledNoCodegen : return "kNotCompiledNoCodegen";
case kNotCompiledPathological : return "kNotCompiledPathological";
case kNotCompiledSpaceFilter : return "kNotCompiledSpaceFilter";
--- /dev/null
+Regression test for the building phase of the optimizing
+compiler. See comment in smali file.
--- /dev/null
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+.class public LDeadInstructions;
+
+.super Ljava/lang/Object;
+
+.method public static method1()V
+ .registers 2
+ return-void
+ # Create a label and a branch to that label to trick the
+ # optimizing compiler into thinking the invoke is live.
+ :start
+ const/4 v0, 0
+ const/4 v1, 0
+ # Provide more arguments than we should. Because this is dead
+ # code, the verifier will not check the argument count. So
+ # the compilers must do the same.
+ invoke-static {v0, v1}, LDeadInstructions;->method1()V
+ goto :start
+.end method
+
+.method public static method2(J)V
+ .registers 3
+ return-void
+ :start
+ const/4 v0, 0
+ const/4 v1, 0
+ const/4 v2, 0
+ # Give a non-sequential pair for the long argument.
+ invoke-static {v0, v2}, LDeadInstructions;->method2(J)V
+ goto :start
+.end method
+
+.method public static method3()V
+ .registers 1
+ return-void
+ :start
+ const/4 v0, 0
+ # Give one half of a pair.
+ invoke-static {v0}, LDeadInstructions;->method2(J)V
+ goto :start
+.end method
+
+.method public static method4()V
+ .registers 2
+ return-void
+ :start
+ # Provide less arguments than we should.
+ invoke-static {}, LDeadInstructions;->method3(J)V
+ goto :start
+.end method
--- /dev/null
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.lang.reflect.Method;
+
+public class Main {
+ public static void main(String[] args) throws Exception {
+ // Workaround for b/18051191.
+ System.out.println("Enter");
+ Class<?> c = Class.forName("DeadInstructions");
+ Method m = c.getMethod("method1");
+ Object[] arguments1 = { };
+ m.invoke(null, arguments1);
+
+ Object[] arguments2 = { (long)4 };
+ m = c.getMethod("method2", long.class);
+ m.invoke(null, arguments2);
+
+ Object[] arguments3 = { };
+ m = c.getMethod("method3");
+ m.invoke(null, arguments3);
+
+ Object[] arguments4 = { };
+ m = c.getMethod("method4");
+ m.invoke(null, arguments4);
+ }
+}
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