Replace rotate patterns and invokes with HRor IR.
Replace constant and register version bitfield rotate patterns, and
rotateRight/Left intrinsic invokes, with new HRor IR.
Where k is constant and r is a register, with the UShr and Shl on
either side of a |, +, or ^, the following patterns are replaced:
x >>> #k OP x << #(reg_size - k)
x >>> #k OP x << #-k
x >>> r OP x << (#reg_size - r)
x >>> (#reg_size - r) OP x << r
x >>> r OP x << -r
x >>> -r OP x << r
Implemented for ARM/ARM64 & X86/X86_64.
Tests changed to not be inlined to prevent optimization from folding
them out. Additional tests added for constant rotate amounts.
Change-Id: I5847d104c0a0348e5792be6c5072ce5090ca2c34
diff --git a/test/541-checker-instruction-simplifier-rotate/src/Main.java b/test/541-checker-instruction-simplifier-rotate/src/Main.java
new file mode 100644
index 0000000..027f262
--- /dev/null
+++ b/test/541-checker-instruction-simplifier-rotate/src/Main.java
@@ -0,0 +1,659 @@
+/*
+ * 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.
+ */
+
+public class Main {
+
+ public static void assertIntEquals(int expected, int actual) {
+ if (expected != actual) {
+ throw new Error("Expected: " + expected + ", found: " + actual);
+ }
+ }
+
+ public static void assertLongEquals(long expected, long actual) {
+ if (expected != actual) {
+ throw new Error("Expected: " + expected + ", found: " + actual);
+ }
+ }
+
+ /// CHECK-START: int Main.rotateIntegerRight(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Invoke:i\d+>> InvokeStaticOrDirect intrinsic:IntegerRotateRight
+
+ /// CHECK-START: int Main.rotateIntegerRight(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.rotateIntegerRight(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: LoadClass
+ /// CHECK-NOT: ClinitCheck
+ /// CHECK-NOT: InvokeStaticOrDirect
+ public static int rotateIntegerRight(int value, int distance) {
+ return java.lang.Integer.rotateRight(value, distance);
+ }
+
+ /// CHECK-START: int Main.rotateIntegerLeft(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Invoke:i\d+>> InvokeStaticOrDirect intrinsic:IntegerRotateLeft
+
+ /// CHECK-START: int Main.rotateIntegerLeft(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Neg>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.rotateIntegerLeft(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: LoadClass
+ /// CHECK-NOT: ClinitCheck
+ /// CHECK-NOT: InvokeStaticOrDirect
+ public static int rotateIntegerLeft(int value, int distance) {
+ return java.lang.Integer.rotateLeft(value, distance);
+ }
+
+ /// CHECK-START: long Main.rotateLongRight(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Invoke:j\d+>> InvokeStaticOrDirect intrinsic:LongRotateRight
+
+ /// CHECK-START: long Main.rotateLongRight(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.rotateLongRight(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: LoadClass
+ /// CHECK-NOT: ClinitCheck
+ /// CHECK-NOT: InvokeStaticOrDirect
+ public static long rotateLongRight(long value, int distance) {
+ return java.lang.Long.rotateRight(value, distance);
+ }
+
+ /// CHECK-START: long Main.rotateLongLeft(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Invoke:j\d+>> InvokeStaticOrDirect intrinsic:LongRotateLeft
+
+ /// CHECK-START: long Main.rotateLongLeft(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Neg>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.rotateLongLeft(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: LoadClass
+ /// CHECK-NOT: ClinitCheck
+ /// CHECK-NOT: InvokeStaticOrDirect
+ public static long rotateLongLeft(long value, int distance) {
+ return java.lang.Long.rotateLeft(value, distance);
+ }
+
+ // (i >>> #distance) | (i << #(reg_bits - distance))
+
+ /// CHECK-START: int Main.ror_int_constant_c_c(int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Const30:i\d+>> IntConstant 30
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<Const2>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<Const30>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.ror_int_constant_c_c(int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Const2>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.ror_int_constant_c_c(int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int ror_int_constant_c_c(int value) {
+ return (value >>> 2) | (value << 30);
+ }
+
+ /// CHECK-START: int Main.ror_int_constant_c_c_0(int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Const2>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.ror_int_constant_c_c_0(int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int ror_int_constant_c_c_0(int value) {
+ return (value >>> 2) | (value << 62);
+ }
+
+ // (j >>> #distance) | (j << #(reg_bits - distance))
+
+ /// CHECK-START: long Main.ror_long_constant_c_c(long) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Const62:i\d+>> IntConstant 62
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<Const2>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<Const62>>]
+ /// CHECK: <<Or:j\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: long Main.ror_long_constant_c_c(long) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Const2>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.ror_long_constant_c_c(long) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static long ror_long_constant_c_c(long value) {
+ return (value >>> 2) | (value << 62);
+ }
+
+ /// CHECK-START: long Main.ror_long_constant_c_c_0(long) instruction_simplifier (after)
+ /// CHECK-NOT: Ror
+ public static long ror_long_constant_c_c_0(long value) {
+ return (value >>> 2) | (value << 30);
+ }
+
+ // (i >>> #distance) | (i << #-distance)
+
+ /// CHECK-START: int Main.ror_int_constant_c_negc(int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<ConstNeg2:i\d+>> IntConstant -2
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<Const2>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<ConstNeg2>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.ror_int_constant_c_negc(int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Const2>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.ror_int_constant_c_negc(int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int ror_int_constant_c_negc(int value) {
+ return (value >>> 2) | (value << -2);
+ }
+
+ // (j >>> #distance) | (j << #-distance)
+
+ /// CHECK-START: long Main.ror_long_constant_c_negc(long) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<ConstNeg2:i\d+>> IntConstant -2
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<Const2>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<ConstNeg2>>]
+ /// CHECK: <<Or:j\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: long Main.ror_long_constant_c_negc(long) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<Const2:i\d+>> IntConstant 2
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Const2>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.ror_long_constant_c_negc(long) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static long ror_long_constant_c_negc(long value) {
+ return (value >>> 2) | (value << -2);
+ }
+
+ // (i >>> distance) | (i << (#reg_bits - distance)
+
+ /// CHECK-START: int Main.ror_int_reg_v_csubv(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Sub:i\d+>> Sub [<<Const32>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<Sub>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.ror_int_reg_v_csubv(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.ror_int_reg_v_csubv(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ /// CHECK-NOT: Sub
+ public static int ror_int_reg_v_csubv(int value, int distance) {
+ return (value >>> distance) | (value << (32 - distance));
+ }
+
+ // (distance = x - y)
+ // (i >>> distance) | (i << (#reg_bits - distance)
+
+ /// CHECK-START: int Main.ror_int_subv_csubv(int, int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgX:i\d+>> ParameterValue
+ /// CHECK: <<ArgY:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK-DAG: <<SubDistance:i\d+>> Sub [<<ArgX>>,<<ArgY>>]
+ /// CHECK-DAG: <<Sub32:i\d+>> Sub [<<Const32>>,<<SubDistance>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<Sub32>>]
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<SubDistance>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.ror_int_subv_csubv(int, int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgX:i\d+>> ParameterValue
+ /// CHECK: <<ArgY:i\d+>> ParameterValue
+ /// CHECK: <<SubDistance:i\d+>> Sub [<<ArgX>>,<<ArgY>>]
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<SubDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.ror_int_subv_csubv(int, int, int) instruction_simplifier (after)
+ /// CHECK: Sub
+ /// CHECK-NOT: Sub
+
+ /// CHECK-START: int Main.ror_int_subv_csubv(int, int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int ror_int_subv_csubv(int value, int x, int y) {
+ int distance = x - y;
+ return (value >>> distance) | (value << (32 - distance));
+ }
+
+ /// CHECK-START: int Main.ror_int_subv_csubv_env(int, int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgX:i\d+>> ParameterValue
+ /// CHECK: <<ArgY:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK-DAG: <<SubDistance:i\d+>> Sub [<<ArgX>>,<<ArgY>>]
+ /// CHECK-DAG: <<Sub32:i\d+>> Sub [<<Const32>>,<<SubDistance>>]
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<SubDistance>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<Sub32>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: <<Add:i\d+>> Add [<<Or>>,<<Sub32>>]
+ /// CHECK: Return [<<Add>>]
+
+ /// CHECK-START: int Main.ror_int_subv_csubv_env(int, int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgX:i\d+>> ParameterValue
+ /// CHECK: <<ArgY:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK-DAG: <<SubDistance:i\d+>> Sub [<<ArgX>>,<<ArgY>>]
+ /// CHECK-DAG: <<Sub32:i\d+>> Sub [<<Const32>>,<<SubDistance>>]
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<SubDistance>>]
+ /// CHECK: <<Add:i\d+>> Add [<<Ror>>,<<Sub32>>]
+ /// CHECK: Return [<<Add>>]
+
+ /// CHECK-START: int Main.ror_int_subv_csubv_env(int, int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int ror_int_subv_csubv_env(int value, int x, int y) {
+ int distance = x - y;
+ int bits_minus_dist = 32 - distance;
+ return ((value >>> distance) | (value << bits_minus_dist)) + bits_minus_dist;
+ }
+
+ // (j >>> distance) | (j << (#reg_bits - distance)
+
+ /// CHECK-START: long Main.ror_long_reg_v_csubv(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Const64:i\d+>> IntConstant 64
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Sub:i\d+>> Sub [<<Const64>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<Sub>>]
+ /// CHECK: <<Or:j\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: long Main.ror_long_reg_v_csubv(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.ror_long_reg_v_csubv(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ /// CHECK-NOT: Sub
+ public static long ror_long_reg_v_csubv(long value, int distance) {
+ return (value >>> distance) | (value << (64 - distance));
+ }
+
+ /// CHECK-START: long Main.ror_long_reg_v_csubv_0(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: Ror
+ public static long ror_long_reg_v_csubv_0(long value, int distance) {
+ return (value >>> distance) | (value << (32 - distance));
+ }
+
+ /// CHECK-START: long Main.ror_long_subv_csubv_0(long, int, int) instruction_simplifier (after)
+ /// CHECK-NOT: Ror
+ public static long ror_long_subv_csubv_0(long value, int x, int y) {
+ int distance = x - y;
+ return (value >>> distance) | (value << (32 - distance));
+ }
+
+ // (i >>> (#reg_bits - distance)) | (i << distance)
+
+ /// CHECK-START: int Main.rol_int_reg_csubv_v(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK-DAG: <<Sub:i\d+>> Sub [<<Const32>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<Sub>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.rol_int_reg_csubv_v(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK: <<Sub:i\d+>> Sub [<<Const32>>,<<ArgDistance>>]
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Sub>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.rol_int_reg_csubv_v(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int rol_int_reg_csubv_v(int value, int distance) {
+ return (value >>> (32 - distance)) | (value << distance);
+ }
+
+ // (distance = x - y)
+ // (i >>> (#reg_bits - distance)) | (i << distance)
+
+ /// CHECK-START: int Main.rol_int_csubv_subv(int, int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgX:i\d+>> ParameterValue
+ /// CHECK: <<ArgY:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK-DAG: <<SubDistance:i\d+>> Sub [<<ArgX>>,<<ArgY>>]
+ /// CHECK-DAG: <<Sub32:i\d+>> Sub [<<Const32>>,<<SubDistance>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<SubDistance>>]
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<Sub32>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.rol_int_csubv_subv(int, int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgX:i\d+>> ParameterValue
+ /// CHECK: <<ArgY:i\d+>> ParameterValue
+ /// CHECK: <<Const32:i\d+>> IntConstant 32
+ /// CHECK: <<SubDistance:i\d+>> Sub [<<ArgX>>,<<ArgY>>]
+ /// CHECK: <<Sub:i\d+>> Sub [<<Const32>>,<<SubDistance>>]
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Sub>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.rol_int_csubv_subv(int, int, int) instruction_simplifier (after)
+ /// CHECK: Sub
+ /// CHECK: Sub
+
+ /// CHECK-START: int Main.rol_int_csubv_subv(int, int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int rol_int_csubv_subv(int value, int x, int y) {
+ int distance = x - y;
+ return (value >>> (32 - distance)) | (value << distance);
+ }
+
+ // (j >>> (#reg_bits - distance)) | (j << distance)
+
+ /// CHECK-START: long Main.rol_long_reg_csubv_v(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Const64:i\d+>> IntConstant 64
+ /// CHECK-DAG: <<Sub:i\d+>> Sub [<<Const64>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<Sub>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Or:j\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: long Main.rol_long_reg_csubv_v(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Const64:i\d+>> IntConstant 64
+ /// CHECK: <<Sub:i\d+>> Sub [<<Const64>>,<<ArgDistance>>]
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Sub>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.rol_long_reg_csubv_v(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static long rol_long_reg_csubv_v(long value, int distance) {
+ return (value >>> (64 - distance)) | (value << distance);
+ }
+
+ /// CHECK-START: long Main.rol_long_reg_csubv_v_0(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: Ror
+ public static long rol_long_reg_csubv_v_0(long value, int distance) {
+ return (value >>> (32 - distance)) | (value << distance);
+ }
+
+ // (i >>> distance) | (i << -distance) (i.e. libcore's Integer.rotateRight)
+
+ /// CHECK-START: int Main.ror_int_reg_v_negv(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<Neg>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.ror_int_reg_v_negv(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.ror_int_reg_v_negv(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ /// CHECK-NOT: Neg
+ public static int ror_int_reg_v_negv(int value, int distance) {
+ return (value >>> distance) | (value << -distance);
+ }
+
+ /// CHECK-START: int Main.ror_int_reg_v_negv_env(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<Neg>>]
+ /// CHECK: <<Or:i\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: <<Add:i\d+>> Add [<<Or>>,<<Neg>>]
+ /// CHECK: Return [<<Add>>]
+
+ /// CHECK-START: int Main.ror_int_reg_v_negv_env(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Sub:i\d+>> Sub [<<Ror>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Sub>>]
+
+ /// CHECK-START: int Main.ror_int_reg_v_negv_env(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int ror_int_reg_v_negv_env(int value, int distance) {
+ int neg_distance = -distance;
+ return ((value >>> distance) | (value << neg_distance)) + neg_distance;
+ }
+
+ // (j >>> distance) | (j << -distance) (i.e. libcore's Long.rotateRight)
+
+ /// CHECK-START: long Main.ror_long_reg_v_negv(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<Neg>>]
+ /// CHECK: <<Or:j\d+>> Or [<<UShr>>,<<Shl>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: long Main.ror_long_reg_v_negv(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.ror_long_reg_v_negv(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ /// CHECK-NOT: Neg
+ public static long ror_long_reg_v_negv(long value, int distance) {
+ return (value >>> distance) | (value << -distance);
+ }
+
+ // (i << distance) | (i >>> -distance) (i.e. libcore's Integer.rotateLeft)
+
+ /// CHECK-START: int Main.rol_int_reg_negv_v(int, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:i\d+>> UShr [<<ArgValue>>,<<Neg>>]
+ /// CHECK-DAG: <<Shl:i\d+>> Shl [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Or:i\d+>> Or [<<Shl>>,<<UShr>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: int Main.rol_int_reg_negv_v(int, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:i\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK: <<Ror:i\d+>> Ror [<<ArgValue>>,<<Neg>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: int Main.rol_int_reg_negv_v(int, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static int rol_int_reg_negv_v(int value, int distance) {
+ return (value << distance) | (value >>> -distance);
+ }
+
+ // (j << distance) | (j >>> -distance) (i.e. libcore's Long.rotateLeft)
+
+ /// CHECK-START: long Main.rol_long_reg_negv_v(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<Neg>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Or:j\d+>> Or [<<Shl>>,<<UShr>>]
+ /// CHECK: Return [<<Or>>]
+
+ /// CHECK-START: long Main.rol_long_reg_negv_v(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Neg>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.rol_long_reg_negv_v(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: UShr
+ /// CHECK-NOT: Shl
+ public static long rol_long_reg_negv_v(long value, int distance) {
+ return (value << distance) | (value >>> -distance);
+ }
+
+ // (j << distance) + (j >>> -distance)
+
+ /// CHECK-START: long Main.rol_long_reg_v_negv_add(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<Neg>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Add:j\d+>> Add [<<Shl>>,<<UShr>>]
+ /// CHECK: Return [<<Add>>]
+
+ /// CHECK-START: long Main.rol_long_reg_v_negv_add(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Neg>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.rol_long_reg_v_negv_add(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: Add
+ /// CHECK-NOT: Shl
+ /// CHECK-NOT: UShr
+ public static long rol_long_reg_v_negv_add(long value, int distance) {
+ return (value << distance) + (value >>> -distance);
+ }
+
+ // (j << distance) ^ (j >>> -distance)
+
+ /// CHECK-START: long Main.rol_long_reg_v_negv_xor(long, int) instruction_simplifier (before)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK-DAG: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK-DAG: <<UShr:j\d+>> UShr [<<ArgValue>>,<<Neg>>]
+ /// CHECK-DAG: <<Shl:j\d+>> Shl [<<ArgValue>>,<<ArgDistance>>]
+ /// CHECK: <<Xor:j\d+>> Xor [<<Shl>>,<<UShr>>]
+ /// CHECK: Return [<<Xor>>]
+
+ /// CHECK-START: long Main.rol_long_reg_v_negv_xor(long, int) instruction_simplifier (after)
+ /// CHECK: <<ArgValue:j\d+>> ParameterValue
+ /// CHECK: <<ArgDistance:i\d+>> ParameterValue
+ /// CHECK: <<Neg:i\d+>> Neg [<<ArgDistance>>]
+ /// CHECK: <<Ror:j\d+>> Ror [<<ArgValue>>,<<Neg>>]
+ /// CHECK: Return [<<Ror>>]
+
+ /// CHECK-START: long Main.rol_long_reg_v_negv_xor(long, int) instruction_simplifier (after)
+ /// CHECK-NOT: Xor
+ /// CHECK-NOT: Shl
+ /// CHECK-NOT: UShr
+ public static long rol_long_reg_v_negv_xor(long value, int distance) {
+ return (value << distance) ^ (value >>> -distance);
+ }
+
+ public static void main(String[] args) {
+ assertIntEquals(2, ror_int_constant_c_c(8));
+ assertIntEquals(2, ror_int_constant_c_c_0(8));
+ assertLongEquals(2L, ror_long_constant_c_c(8L));
+
+ assertIntEquals(2, ror_int_constant_c_negc(8));
+ assertLongEquals(2L, ror_long_constant_c_negc(8L));
+
+ assertIntEquals(2, ror_int_reg_v_csubv(8, 2));
+ assertLongEquals(2L, ror_long_reg_v_csubv(8L, 2));
+
+ assertIntEquals(2, ror_int_subv_csubv(8, 2, 0));
+ assertIntEquals(32, ror_int_subv_csubv_env(8, 2, 0));
+ assertIntEquals(32, rol_int_csubv_subv(8, 2, 0));
+
+ assertIntEquals(32, rol_int_reg_csubv_v(8, 2));
+ assertLongEquals(32L, rol_long_reg_csubv_v(8L, 2));
+
+ assertIntEquals(2, ror_int_reg_v_negv(8, 2));
+ assertIntEquals(0, ror_int_reg_v_negv_env(8, 2));
+ assertLongEquals(2L, ror_long_reg_v_negv(8L, 2));
+
+ assertIntEquals(32, rol_int_reg_negv_v(8, 2));
+ assertLongEquals(32L, rol_long_reg_negv_v(8L, 2));
+
+ assertLongEquals(32L, rol_long_reg_v_negv_add(8L, 2));
+ assertLongEquals(32L, rol_long_reg_v_negv_xor(8L, 2));
+ }
+}