| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=-neon < %s | FileCheck %s |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=-neon -mattr=+cssc < %s | FileCheck %s -check-prefix=CHECK-CSSC |
| |
| declare i128 @llvm.ctpop.i128(i128) |
| |
| define i128 @ctpop_i128(i128 %i) { |
| ; CHECK-LABEL: ctpop_i128: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: lsr x9, x0, #1 |
| ; CHECK-NEXT: lsr x10, x1, #1 |
| ; CHECK-NEXT: mov x8, #72340172838076673 // =0x101010101010101 |
| ; CHECK-NEXT: and x9, x9, #0x5555555555555555 |
| ; CHECK-NEXT: and x10, x10, #0x5555555555555555 |
| ; CHECK-NEXT: sub x9, x0, x9 |
| ; CHECK-NEXT: sub x10, x1, x10 |
| ; CHECK-NEXT: mov x1, xzr |
| ; CHECK-NEXT: lsr x11, x9, #2 |
| ; CHECK-NEXT: lsr x12, x10, #2 |
| ; CHECK-NEXT: and x9, x9, #0x3333333333333333 |
| ; CHECK-NEXT: and x10, x10, #0x3333333333333333 |
| ; CHECK-NEXT: and x11, x11, #0x3333333333333333 |
| ; CHECK-NEXT: add x9, x9, x11 |
| ; CHECK-NEXT: and x11, x12, #0x3333333333333333 |
| ; CHECK-NEXT: add x9, x9, x9, lsr #4 |
| ; CHECK-NEXT: add x10, x10, x11 |
| ; CHECK-NEXT: add x10, x10, x10, lsr #4 |
| ; CHECK-NEXT: and x9, x9, #0xf0f0f0f0f0f0f0f |
| ; CHECK-NEXT: mul x9, x9, x8 |
| ; CHECK-NEXT: and x10, x10, #0xf0f0f0f0f0f0f0f |
| ; CHECK-NEXT: mul x8, x10, x8 |
| ; CHECK-NEXT: lsr x9, x9, #56 |
| ; CHECK-NEXT: add x0, x9, x8, lsr #56 |
| ; CHECK-NEXT: ret |
| ; |
| ; CHECK-CSSC-LABEL: ctpop_i128: |
| ; CHECK-CSSC: // %bb.0: |
| ; CHECK-CSSC-NEXT: cnt x8, x1 |
| ; CHECK-CSSC-NEXT: cnt x9, x0 |
| ; CHECK-CSSC-NEXT: mov x1, xzr |
| ; CHECK-CSSC-NEXT: add x0, x9, x8 |
| ; CHECK-CSSC-NEXT: ret |
| %c = call i128 @llvm.ctpop.i128(i128 %i) |
| ret i128 %c |
| } |
