76 lines
2.2 KiB
LLVM
76 lines
2.2 KiB
LLVM
; RUN: llc < %s -march=arm64 -aarch64-neon-syntax=apple | FileCheck %s
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; RUN: llc < %s -march=aarch64 -mattr -neon -aarch64-neon-syntax=apple | FileCheck -check-prefix=CHECK-NONEON %s
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define i32 @cnt32_advsimd(i32 %x) nounwind readnone {
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%cnt = tail call i32 @llvm.ctpop.i32(i32 %x)
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ret i32 %cnt
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; CHECK: mov w[[IN64:[0-9]+]], w0
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; CHECK: fmov d0, x[[IN64]]
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; CHECK: cnt.8b v0, v0
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; CHECK: uaddlv.8b h0, v0
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; CHECK: fmov w0, s0
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; CHECK: ret
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; CHECK-NONEON-LABEL: cnt32_advsimd
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; CHECK-NONEON-NOT: 8b
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; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x55555555
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; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x33333333
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; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0xf0f0f0f
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; CHECK-NONEON: mul
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}
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define i32 @cnt32_advsimd_2(<2 x i32> %x) {
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%1 = extractelement <2 x i32> %x, i64 0
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%2 = tail call i32 @llvm.ctpop.i32(i32 %1)
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ret i32 %2
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; CHECK: fmov w0, s0
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; CHECK: fmov d0, x0
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; CHECK: cnt.8b v0, v0
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; CHECK: uaddlv.8b h0, v0
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; CHECK: fmov w0, s0
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; CHECK: ret
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; CHECK-NONEON-LABEL: cnt32_advsimd_2
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; CHECK-NONEON-NOT: 8b
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; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x55555555
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; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0x33333333
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; CHECK-NONEON: and w{{[0-9]+}}, w{{[0-9]+}}, #0xf0f0f0f
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; CHECK-NONEON: mul
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}
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define i64 @cnt64_advsimd(i64 %x) nounwind readnone {
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%cnt = tail call i64 @llvm.ctpop.i64(i64 %x)
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ret i64 %cnt
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; CHECK: fmov d0, x0
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; CHECK: cnt.8b v0, v0
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; CHECK: uaddlv.8b h0, v0
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; CHECK: fmov w0, s0
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; CHECK: ret
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; CHECK-NONEON-LABEL: cnt64_advsimd
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; CHECK-NONEON-NOT: 8b
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; CHECK-NONEON: and x{{[0-9]+}}, x{{[0-9]+}}, #0x5555555555555555
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; CHECK-NONEON: and x{{[0-9]+}}, x{{[0-9]+}}, #0x3333333333333333
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; CHECK-NONEON: and x{{[0-9]+}}, x{{[0-9]+}}, #0xf0f0f0f0f0f0f0f
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; CHECK-NONEON: mul
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}
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; Do not use AdvSIMD when -mno-implicit-float is specified.
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; rdar://9473858
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define i32 @cnt32(i32 %x) nounwind readnone noimplicitfloat {
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%cnt = tail call i32 @llvm.ctpop.i32(i32 %x)
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ret i32 %cnt
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; CHECK-LABEL: cnt32:
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; CHECK-NOT: 16b
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; CHECK: ret
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}
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define i64 @cnt64(i64 %x) nounwind readnone noimplicitfloat {
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%cnt = tail call i64 @llvm.ctpop.i64(i64 %x)
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ret i64 %cnt
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; CHECK-LABEL: cnt64:
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; CHECK-NOT: 16b
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; CHECK: ret
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}
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declare i32 @llvm.ctpop.i32(i32) nounwind readnone
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declare i64 @llvm.ctpop.i64(i64) nounwind readnone
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