derek.holloway
7502bf64a4
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46 lines
1.6 KiB
LLVM
46 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=-neon < %s | FileCheck %s
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; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=-neon -mattr=+cssc < %s | FileCheck %s -check-prefix=CHECK-CSSC
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declare i128 @llvm.ctpop.i128(i128)
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define i128 @ctpop_i128(i128 %i) {
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; CHECK-LABEL: ctpop_i128:
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; CHECK: // %bb.0:
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; CHECK-NEXT: lsr x9, x0, #1
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; CHECK-NEXT: lsr x10, x1, #1
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; CHECK-NEXT: mov x8, #72340172838076673 // =0x101010101010101
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; CHECK-NEXT: and x9, x9, #0x5555555555555555
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; CHECK-NEXT: and x10, x10, #0x5555555555555555
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; CHECK-NEXT: sub x9, x0, x9
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; CHECK-NEXT: sub x10, x1, x10
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; CHECK-NEXT: mov x1, xzr
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; CHECK-NEXT: lsr x11, x9, #2
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; CHECK-NEXT: lsr x12, x10, #2
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; CHECK-NEXT: and x9, x9, #0x3333333333333333
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; CHECK-NEXT: and x10, x10, #0x3333333333333333
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; CHECK-NEXT: and x11, x11, #0x3333333333333333
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; CHECK-NEXT: add x9, x9, x11
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; CHECK-NEXT: and x11, x12, #0x3333333333333333
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; CHECK-NEXT: add x9, x9, x9, lsr #4
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; CHECK-NEXT: add x10, x10, x11
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; CHECK-NEXT: add x10, x10, x10, lsr #4
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; CHECK-NEXT: and x9, x9, #0xf0f0f0f0f0f0f0f
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; CHECK-NEXT: mul x9, x9, x8
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; CHECK-NEXT: and x10, x10, #0xf0f0f0f0f0f0f0f
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; CHECK-NEXT: mul x8, x10, x8
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; CHECK-NEXT: lsr x9, x9, #56
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; CHECK-NEXT: add x0, x9, x8, lsr #56
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; CHECK-NEXT: ret
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;
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; CHECK-CSSC-LABEL: ctpop_i128:
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; CHECK-CSSC: // %bb.0:
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; CHECK-CSSC-NEXT: cnt x8, x1
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; CHECK-CSSC-NEXT: cnt x9, x0
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; CHECK-CSSC-NEXT: mov x1, xzr
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; CHECK-CSSC-NEXT: add x0, x9, x8
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; CHECK-CSSC-NEXT: ret
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%c = call i128 @llvm.ctpop.i128(i128 %i)
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ret i128 %c
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}
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