1 ; RUN: llc < %s -mtriple=arm64-eabi -aarch64-neon-syntax=apple | FileCheck %s 2 ; RUN: llc < %s -mtriple=aarch64-eabi -mattr -neon -aarch64-neon-syntax=apple | FileCheck -check-prefix=CHECK-NONEON %s 3 4 define i32 @cnt32_advsimd(i32 %x) nounwind readnone { 5 %cnt = tail call i32 @llvm.ctpop.i32(i32 %x) 6 ret i32 %cnt 7 ; CHECK: mov w[[IN64:[0-9]+]], w0 8 ; CHECK: fmov d0, x[[IN64]] 9 ; CHECK: cnt.8b v0, v0 10 ; CHECK: uaddlv.8b h0, v0 11 ; CHECK: fmov w0, s0 12 ; CHECK: ret 13 ; CHECK-NONEON-LABEL: cnt32_advsimd 14 ; CHECK-NONEON-NOT: 8b 15 ; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x55555555 16 ; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x33333333 17 ; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0xf0f0f0f 18 ; CHECK-NONEON: mul 19 } 20 21 define i32 @cnt32_advsimd_2(<2 x i32> %x) { 22 %1 = extractelement <2 x i32> %x, i64 0 23 %2 = tail call i32 @llvm.ctpop.i32(i32 %1) 24 ret i32 %2 25 ; CHECK: fmov w0, s0 26 ; CHECK: fmov d0, x0 27 ; CHECK: cnt.8b v0, v0 28 ; CHECK: uaddlv.8b h0, v0 29 ; CHECK: fmov w0, s0 30 ; CHECK: ret 31 ; CHECK-NONEON-LABEL: cnt32_advsimd_2 32 ; CHECK-NONEON-NOT: 8b 33 ; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x55555555 34 ; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x33333333 35 ; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0xf0f0f0f 36 ; CHECK-NONEON: mul 37 } 38 39 define i64 @cnt64_advsimd(i64 %x) nounwind readnone { 40 %cnt = tail call i64 @llvm.ctpop.i64(i64 %x) 41 ret i64 %cnt 42 ; CHECK: fmov d0, x0 43 ; CHECK: cnt.8b v0, v0 44 ; CHECK: uaddlv.8b h0, v0 45 ; CHECK: fmov w0, s0 46 ; CHECK: ret 47 ; CHECK-NONEON-LABEL: cnt64_advsimd 48 ; CHECK-NONEON-NOT: 8b 49 ; CHECK-NONEON: and x{{[0-9]+}}, x{{[0-9]+}}, #0x5555555555555555 50 ; CHECK-NONEON: and x{{[0-9]+}}, x{{[0-9]+}}, #0x3333333333333333 51 ; CHECK-NONEON: and x{{[0-9]+}}, x{{[0-9]+}}, #0xf0f0f0f0f0f0f0f 52 ; CHECK-NONEON: mul 53 } 54 55 ; Do not use AdvSIMD when -mno-implicit-float is specified. 56 ; rdar://9473858 57 58 define i32 @cnt32(i32 %x) nounwind readnone noimplicitfloat { 59 %cnt = tail call i32 @llvm.ctpop.i32(i32 %x) 60 ret i32 %cnt 61 ; CHECK-LABEL: cnt32: 62 ; CHECK-NOT: 16b 63 ; CHECK: ret 64 } 65 66 define i64 @cnt64(i64 %x) nounwind readnone noimplicitfloat { 67 %cnt = tail call i64 @llvm.ctpop.i64(i64 %x) 68 ret i64 %cnt 69 ; CHECK-LABEL: cnt64: 70 ; CHECK-NOT: 16b 71 ; CHECK: ret 72 } 73 74 declare i32 @llvm.ctpop.i32(i32) nounwind readnone 75 declare i64 @llvm.ctpop.i64(i64) nounwind readnone 76
