ART/mterp: Fix mul-long to clear shadow registers.
And enable D8 for the test where using D8 exposed the bug.
Test: testrunner.py --target --gcstress --interpreter -t 704
Bug: 110398163
Change-Id: Ia39dd5f15fb8a074a213c68c40fe4827f9cf7a2f
diff --git a/runtime/interpreter/mterp/arm/op_mul_long.S b/runtime/interpreter/mterp/arm/op_mul_long.S
index a13c803..4f55280 100644
--- a/runtime/interpreter/mterp/arm/op_mul_long.S
+++ b/runtime/interpreter/mterp/arm/op_mul_long.S
@@ -29,6 +29,7 @@
mla r2, r0, r3, ip @ r2<- YxX + (ZxW)
mov r0, rINST, lsr #8 @ r0<- AA
add r2, r2, lr @ r2<- lr + low(ZxW + (YxX))
+ CLEAR_SHADOW_PAIR r0, lr, ip @ Zero out the shadow regs
VREG_INDEX_TO_ADDR r0, r0 @ r0<- &fp[AA]
FETCH_ADVANCE_INST 2 @ advance rPC, load rINST
GET_INST_OPCODE ip @ extract opcode from rINST
diff --git a/runtime/interpreter/mterp/out/mterp_arm.S b/runtime/interpreter/mterp/out/mterp_arm.S
index b2702a9..53ea365 100644
--- a/runtime/interpreter/mterp/out/mterp_arm.S
+++ b/runtime/interpreter/mterp/out/mterp_arm.S
@@ -4475,6 +4475,7 @@
mla r2, r0, r3, ip @ r2<- YxX + (ZxW)
mov r0, rINST, lsr #8 @ r0<- AA
add r2, r2, lr @ r2<- lr + low(ZxW + (YxX))
+ CLEAR_SHADOW_PAIR r0, lr, ip @ Zero out the shadow regs
VREG_INDEX_TO_ADDR r0, r0 @ r0<- &fp[AA]
FETCH_ADVANCE_INST 2 @ advance rPC, load rINST
GET_INST_OPCODE ip @ extract opcode from rINST
diff --git a/test/704-multiply-accumulate/build b/test/704-multiply-accumulate/build
deleted file mode 100644
index d85147f..0000000
--- a/test/704-multiply-accumulate/build
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2018 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.
-
-# See b/65168732
-export USE_D8=false
-
-./default-build "$@"