You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
3.2 KiB
124 lines
3.2 KiB
# Copyright (C) 2016 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 LIrreducibleLoop;
|
|
.super Ljava/lang/Object;
|
|
|
|
# Test case where liveness analysis produces linear order where loop blocks are
|
|
# not adjacent.
|
|
|
|
## CHECK-START: int IrreducibleLoop.liveness(boolean, boolean, boolean, int) builder (after)
|
|
## CHECK-DAG: Add loop:none
|
|
## CHECK-DAG: Mul loop:<<Loop:B\d+>>
|
|
## CHECK-DAG: Not loop:<<Loop>>
|
|
|
|
## CHECK-START: int IrreducibleLoop.liveness(boolean, boolean, boolean, int) liveness (after)
|
|
## CHECK-DAG: Add liveness:<<LPreEntry:\d+>>
|
|
## CHECK-DAG: Mul liveness:<<LHeader:\d+>>
|
|
## CHECK-DAG: Not liveness:<<LBackEdge:\d+>>
|
|
## CHECK-EVAL: (<<LHeader>> < <<LPreEntry>>) and (<<LPreEntry>> < <<LBackEdge>>)
|
|
|
|
.method public static liveness(ZZZI)I
|
|
.registers 10
|
|
const/16 v0, 42
|
|
|
|
if-eqz p0, :header
|
|
|
|
:pre_entry
|
|
add-int/2addr p3, p3
|
|
invoke-static {v0}, Ljava/lang/System;->exit(I)V
|
|
goto :body1
|
|
|
|
# Trivially dead code to ensure linear order verification skips removed blocks (b/28252537).
|
|
:dead_code
|
|
nop
|
|
goto :dead_code
|
|
|
|
:header
|
|
mul-int/2addr p3, p3
|
|
if-eqz p1, :body2
|
|
|
|
:body1
|
|
goto :body_merge
|
|
|
|
:body2
|
|
invoke-static {v0}, Ljava/lang/System;->exit(I)V
|
|
goto :body_merge
|
|
|
|
:body_merge
|
|
if-eqz p2, :exit
|
|
|
|
:back_edge
|
|
not-int p3, p3
|
|
goto :header
|
|
|
|
:exit
|
|
return p3
|
|
|
|
.end method
|
|
|
|
## CHECK-START: int IrreducibleLoop.liveness2(boolean, boolean, boolean, int) builder (after)
|
|
## CHECK-DAG: Mul loop:<<Loop:B\d+>>
|
|
## CHECK-DAG: Not loop:<<Loop>>
|
|
|
|
## CHECK-START: int IrreducibleLoop.liveness2(boolean, boolean, boolean, int) liveness (after)
|
|
## CHECK-DAG: Mul liveness:<<LPreEntry2:\d+>>
|
|
## CHECK-DAG: Not liveness:<<LBackEdge1:\d+>>
|
|
## CHECK-EVAL: <<LBackEdge1>> < <<LPreEntry2>>
|
|
|
|
.method public liveness2(ZZZI)I
|
|
.registers 10
|
|
|
|
const v1, 1
|
|
|
|
:header1
|
|
if-eqz p0, :body1
|
|
|
|
:exit
|
|
return p3
|
|
|
|
:body1
|
|
# The test will generate an incorrect linear order when the following IF swaps
|
|
# its successors. To do that, load a boolean value and compare NotEqual to 1.
|
|
sget-boolean v2, LIrreducibleLoop;->f:Z
|
|
const v3, 1
|
|
if-ne v2, v3, :pre_header2
|
|
|
|
:pre_entry2
|
|
# This constant has a use in a phi in :back_edge2 and a back edge use in
|
|
# :back_edge1. Because the linear order is wrong, the back edge use has
|
|
# a lower liveness than the phi use.
|
|
const v0, 42
|
|
mul-int/2addr p3, p3
|
|
goto :back_edge2
|
|
|
|
:back_edge2
|
|
add-int/2addr p3, v0
|
|
add-int/2addr v0, v1
|
|
goto :header2
|
|
|
|
:header2
|
|
if-eqz p2, :back_edge2
|
|
|
|
:back_edge1
|
|
not-int p3, p3
|
|
goto :header1
|
|
|
|
:pre_header2
|
|
const v0, 42
|
|
goto :header2
|
|
.end method
|
|
|
|
.field public static f:Z
|