/*
* 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 .
*/
public class Main {
public static void assertIntEquals(int expected, int result) {
if (expected != result) {
throw new Error("Expected: " + expected + ", found: " + result);
}
}
public static void assertLongEquals(long expected, long result) {
if (expected != result) {
throw new Error("Expected: " + expected + ", found: " + result);
}
}
/**
* Test merging of ` NOT + AND ` into ` BIC ` .
*/
/// CHECK-START-ARM64: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_arm64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_arm64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:And
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: Not
/// CHECK-NOT: And
/// CHECK-START-ARM64: int Main.$opt$noinline$notAnd(int, int) disassembly (after)
/// CHECK: bic w{{\d+}}, w{{\d+}}, w{{\d+}}
/// CHECK-START-ARM: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_arm (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_arm (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:And
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: Not
/// CHECK-NOT: And
/// CHECK-START-ARM: int Main.$opt$noinline$notAnd(int, int) disassembly (after)
/// CHECK: bic r{{\d+}}, r{{\d+}}, r{{\d+}}
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_riscv64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_riscv64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:And
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAnd(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: Not
/// CHECK-NOT: And
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAnd(int, int) disassembly (after)
/// CHECK: andn a{{\d+}}, a{{\d+}}, a{{\d+}}
public static int $opt$noinline$notAnd(int base, int mask) {
return base & ~mask;
}
/**
* Test merging of ` NOT + ORR ` into ` ORN ` .
*/
/// CHECK-START-ARM64: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_arm64 (before)
/// CHECK: <<Base:j\d+>> ParameterValue
/// CHECK: <<Mask:j\d+>> ParameterValue
/// CHECK: <<Not:j\d+>> Not [<<Mask>>]
/// CHECK: <<Op:j\d+>> Or [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM64: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_arm64 (after)
/// CHECK: <<Base:j\d+>> ParameterValue
/// CHECK: <<Mask:j\d+>> ParameterValue
/// CHECK: <<NegOp:j\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:Or
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-ARM64: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_arm64 (after)
/// CHECK-NOT: Not
/// CHECK-NOT: Or
/// CHECK-START-ARM64: long Main.$opt$noinline$notOr(long, long) disassembly (after)
/// CHECK: orn x{{\d+}}, x{{\d+}}, x{{\d+}}
/// CHECK-START-ARM: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_arm (before)
/// CHECK: <<Base:j\d+>> ParameterValue
/// CHECK: <<Mask:j\d+>> ParameterValue
/// CHECK: <<Not:j\d+>> Not [<<Mask>>]
/// CHECK: <<Op:j\d+>> Or [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_arm (after)
/// CHECK: <<Base:j\d+>> ParameterValue
/// CHECK: <<Mask:j\d+>> ParameterValue
/// CHECK: <<NegOp:j\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:Or
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-ARM: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_arm (after)
/// CHECK-NOT: Not
/// CHECK-NOT: Or
/// CHECK-START-ARM: long Main.$opt$noinline$notOr(long, long) disassembly (after)
/// CHECK: orn r{{\d+}}, r{{\d+}}, r{{\d+}}
/// CHECK-START-RISCV64: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_riscv64 (before)
/// CHECK: <<Base:j\d+>> ParameterValue
/// CHECK: <<Mask:j\d+>> ParameterValue
/// CHECK: <<Not:j\d+>> Not [<<Mask>>]
/// CHECK: <<Op:j\d+>> Or [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-RISCV64: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_riscv64 (after)
/// CHECK: <<Base:j\d+>> ParameterValue
/// CHECK: <<Mask:j\d+>> ParameterValue
/// CHECK: <<NegOp:j\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:Or
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-RISCV64: long Main.$opt$noinline$notOr(long, long) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: Not
/// CHECK-NOT: Or
/// CHECK-START-RISCV64: long Main.$opt$noinline$notOr(long, long) disassembly (after)
/// CHECK: orn a{{\d+}}, a{{\d+}}, a{{\d+}}
public static long $opt$noinline$notOr(long base, long mask) {
return base | ~mask;
}
/**
* Test merging of ` NOT + EOR ` into ` EON ` .
*/
/// CHECK-START-ARM64: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_arm64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> Xor [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_arm64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:Xor
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: Not
/// CHECK-NOT: Xor
/// CHECK-START-ARM64: int Main.$opt$noinline$notXor(int, int) disassembly (after)
/// CHECK: eon w{{\d+}}, w{{\d+}}, w{{\d+}}
/// CHECK-START-ARM: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_arm (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> Xor [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_arm (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> Xor [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: BitwiseNegatedRight
/// CHECK-START-RISCV64: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_riscv64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op:i\d+>> Xor [<<Base>>,<<Not>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_riscv64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Base>>,<<Mask>>] kind:Xor
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notXor(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: Not
/// CHECK-NOT: Xor
/// CHECK-START-RISCV64: int Main.$opt$noinline$notXor(int, int) disassembly (after)
/// CHECK: xnor a{{\d+}}, a{{\d+}}, a{{\d+}}
public static int $opt$noinline$notXor(int base, int mask) {
return base ^ ~mask;
}
/**
* Check that transformation is done when the argument is a constant .
*/
/// CHECK-START-ARM64: int Main.$opt$noinline$notAndConstant(int) instruction_simplifier_arm64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Constant:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Base>>]
/// CHECK: <<Op:i\d+>> And [<<Not>>,<<Constant>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notAndConstant(int) instruction_simplifier_arm64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Constant:i\d+>> IntConstant
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Constant>>,<<Base>>] kind:And
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notAndConstant(int) instruction_simplifier_arm (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Constant:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Base>>]
/// CHECK: <<Op:i\d+>> And [<<Not>>,<<Constant>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notAndConstant(int) instruction_simplifier_arm (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Constant:i\d+>> IntConstant
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Constant>>,<<Base>>] kind:And
/// CHECK: Return [<<NegOp>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAndConstant(int) instruction_simplifier_riscv64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Constant:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Base>>]
/// CHECK: <<Op:i\d+>> And [<<Not>>,<<Constant>>]
/// CHECK: Return [<<Op>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAndConstant(int) instruction_simplifier_riscv64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Constant:i\d+>> IntConstant
/// CHECK: <<NegOp:i\d+>> BitwiseNegatedRight [<<Constant>>,<<Base>>] kind:And
/// CHECK: Return [<<NegOp>>]
public static int $opt$noinline$notAndConstant(int mask) {
return 0 xf & ~mask;
}
/**
* Check that no transformation is done when Not has multiple uses .
*/
/// CHECK-START-ARM64: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_arm64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<One:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op1:i\d+>> And [<<Not>>,<<One>>]
/// CHECK: <<Op2:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: <<Add:i\d+>> Add [<<Op1>>,<<Op2>>]
/// CHECK: Return [<<Add>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_arm64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<One:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op1:i\d+>> And [<<Not>>,<<One>>]
/// CHECK: <<Op2:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: <<Add:i\d+>> Add [<<Op1>>,<<Op2>>]
/// CHECK: Return [<<Add>>]
/// CHECK-START-ARM64: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: BitwiseNegatedRight
/// CHECK-START-ARM: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_arm (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<One:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op1:i\d+>> And [<<Not>>,<<One>>]
/// CHECK: <<Op2:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: <<Add:i\d+>> Add [<<Op1>>,<<Op2>>]
/// CHECK: Return [<<Add>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_arm (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<One:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op1:i\d+>> And [<<Not>>,<<One>>]
/// CHECK: <<Op2:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: <<Add:i\d+>> Add [<<Op1>>,<<Op2>>]
/// CHECK: Return [<<Add>>]
/// CHECK-START-ARM: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: BitwiseNegatedRight
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_riscv64 (before)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<One:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op1:i\d+>> And [<<Not>>,<<One>>]
/// CHECK: <<Op2:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: <<Add:i\d+>> Add [<<Op1>>,<<Op2>>]
/// CHECK: Return [<<Add>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_riscv64 (after)
/// CHECK: <<Base:i\d+>> ParameterValue
/// CHECK: <<Mask:i\d+>> ParameterValue
/// CHECK: <<One:i\d+>> IntConstant
/// CHECK: <<Not:i\d+>> Not [<<Mask>>]
/// CHECK: <<Op1:i\d+>> And [<<Not>>,<<One>>]
/// CHECK: <<Op2:i\d+>> And [<<Base>>,<<Not>>]
/// CHECK: <<Add:i\d+>> Add [<<Op1>>,<<Op2>>]
/// CHECK: Return [<<Add>>]
/// CHECK-START-RISCV64: int Main.$opt$noinline$notAndMultipleUses(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: BitwiseNegatedRight
public static int $opt$noinline$notAndMultipleUses(int base, int mask) {
int tmp = ~mask;
return (tmp & 0 x1) + (base & tmp);
}
/**
* Check that no transformation is done when both inputs are Not ' s .
*/
// We don't check the instructions before the pass, since if De Morgan's laws
// have been applied then Not/Not/Or is replaced by And/Not.
/// CHECK-START-ARM64: int Main.$opt$noinline$deMorganOr(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: BitwiseNegatedRight
/// CHECK-START-ARM: int Main.$opt$noinline$deMorganOr(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: BitwiseNegatedRight
/// CHECK-START-RISCV64: int Main.$opt$noinline$deMorganOr(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: BitwiseNegatedRight
public static int $opt$noinline$deMorganOr(int a, int b) {
return ~a | ~b;
}
/**
* Check that we transform a And + Sub into a bic
*/
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Left>>,<<HAnd>>]
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: And
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: Sub
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm (after)
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm64 (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Left>>,<<HAnd>>]
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: And
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: Sub
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_arm64 (after)
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_riscv64 (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Left>>,<<HAnd>>]
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: And
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: Sub
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_riscv64 (after)
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_x86_64 (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Left>>,<<HAnd>>]
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_x86_64 (after)
/// CHECK-IF: hasIsaFeature('avx2')
/// CHECK-NOT: And
/// CHECK-FI:
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_x86_64 (after)
/// CHECK-IF: hasIsaFeature('avx2')
/// CHECK-NOT: Sub
/// CHECK-FI:
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic(int, int) instruction_simplifier_x86_64 (after)
/// CHECK-IF: hasIsaFeature('avx2')
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-FI:
public static int $noinline$AndSubIntoBic(int a, int b) {
return a - (a & b);
}
/**
* Check that we transform a And + Sub into a bic . Alternative version where the and is inverted .
*/
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Right>>,<<HAnd>>]
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: And
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm (after)
/// CHECK-NOT: Sub
/// CHECK-START-ARM: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm (after)
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm64 (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Right>>,<<HAnd>>]
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: And
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm64 (after)
/// CHECK-NOT: Sub
/// CHECK-START-ARM64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_arm64 (after)
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_riscv64 (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Right>>,<<HAnd>>]
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: And
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_riscv64 (after)
/// CHECK-NOT: Sub
/// CHECK-START-RISCV64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_riscv64 (after)
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_x86_64 (before)
/// CHECK: <<HAnd:i\d+>> And [<<Left:i\d+>>,<<Right:i\d+>>]
/// CHECK: Sub [<<Right>>,<<HAnd>>]
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_x86_64 (after)
/// CHECK-IF: hasIsaFeature('avx2')
/// CHECK-NOT: And
/// CHECK-FI:
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_x86_64 (after)
/// CHECK-IF: hasIsaFeature('avx2')
/// CHECK-NOT: Sub
/// CHECK-FI:
/// CHECK-START-X86_64: int Main.$noinline$AndSubIntoBic_v2(int, int) instruction_simplifier_x86_64 (after)
/// CHECK-IF: hasIsaFeature('avx2')
/// CHECK: BitwiseNegatedRight kind:And
/// CHECK-FI:
public static int $noinline$AndSubIntoBic_v2(int a, int b) {
return b - (a & b);
}
public static void main(String[] args) {
assertIntEquals(0 xe, $opt$noinline$notAnd(0 xf, 0 x1));
assertLongEquals(~0 x0, $opt$noinline$notOr(0 xf, 0 x1));
assertIntEquals(~0 xe, $opt$noinline$notXor(0 xf, 0 x1));
assertIntEquals(0 xe, $opt$noinline$notAndConstant(0 x1));
assertIntEquals(0 xe, $opt$noinline$notAndMultipleUses(0 xf, 0 x1));
assertIntEquals(~0 x1, $opt$noinline$deMorganOr(0 x3, 0 x1));
assertIntEquals(0 x2, $noinline$AndSubIntoBic(0 x3, 0 x1));
assertIntEquals(0 x2, $noinline$AndSubIntoBic_v2(0 x1, 0 x3));
}
}
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nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
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(vorverarbeitet am 2026-06-29)
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