Merge "x86_64: Fix neg_double"
diff --git a/compiler/dex/quick/x86/fp_x86.cc b/compiler/dex/quick/x86/fp_x86.cc
index 20bb7bf..1f05ab9 100644
--- a/compiler/dex/quick/x86/fp_x86.cc
+++ b/compiler/dex/quick/x86/fp_x86.cc
@@ -568,8 +568,11 @@
rl_src = LoadValueWide(rl_src, kCoreReg);
rl_result = EvalLocWide(rl_dest, kCoreReg, true);
if (Gen64Bit()) {
- LoadConstantWide(rl_result.reg, 0x8000000000000000);
- OpRegReg(kOpAdd, rl_result.reg, rl_src.reg);
+ OpRegCopy(rl_result.reg, rl_src.reg);
+ // Flip sign bit.
+ NewLIR2(kX86Rol64RI, rl_result.reg.GetReg(), 1);
+ NewLIR2(kX86Xor64RI, rl_result.reg.GetReg(), 1);
+ NewLIR2(kX86Ror64RI, rl_result.reg.GetReg(), 1);
} else {
OpRegRegImm(kOpAdd, rl_result.reg.GetHigh(), rl_src.reg.GetHigh(), 0x80000000);
OpRegCopy(rl_result.reg, rl_src.reg);
diff --git a/test/112-double-math/expected.txt b/test/112-double-math/expected.txt
new file mode 100644
index 0000000..1e10a95
--- /dev/null
+++ b/test/112-double-math/expected.txt
@@ -0,0 +1 @@
+cond_neg_double PASSED
diff --git a/test/112-double-math/info.txt b/test/112-double-math/info.txt
new file mode 100644
index 0000000..a32f4e0
--- /dev/null
+++ b/test/112-double-math/info.txt
@@ -0,0 +1 @@
+This checks the neg_double bytecode.
diff --git a/test/112-double-math/src/Main.java b/test/112-double-math/src/Main.java
new file mode 100644
index 0000000..8172dfa
--- /dev/null
+++ b/test/112-double-math/src/Main.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2007 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.
+ */
+
+public class Main {
+ public static double cond_neg_double(double value, boolean cond) {
+ return cond ? -value : value;
+ }
+
+ public static void main(String args[]) {
+ double result = cond_neg_double(-1.0d, true);
+
+ if (Double.doubleToRawLongBits(result) == 0x3ff0000000000000L) {
+ System.out.println("cond_neg_double PASSED");
+ } else {
+ System.out.println("cond_neg_double FAILED " + result);
+ }
+ }
+}
