llvm/test/CodeGen/X86/vector-bitreverse.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+xop,+avx | FileCheck %s --check-prefix=ALL --check-prefix=XOP --check-prefix=XOPAVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+xop,+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=XOP --check-prefix=XOPAVX2

define i8 @test_bitreverse_i8(i8 %a) {
; ALL-LABEL: test_bitreverse_i8:
; ALL:       # BB#0:
; ALL-NEXT:    vmovd %edi, %xmm0
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    vpextrb $0, %xmm0, %eax
; ALL-NEXT:    retq
  %b = call i8 @llvm.bitreverse.i8(i8 %a)
  ret i8 %b
}

define i16 @test_bitreverse_i16(i16 %a) {
; ALL-LABEL: test_bitreverse_i16:
; ALL:       # BB#0:
; ALL-NEXT:    vmovd %edi, %xmm0
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    vmovd %xmm0, %eax
; ALL-NEXT:    retq
  %b = call i16 @llvm.bitreverse.i16(i16 %a)
  ret i16 %b
}

define i32 @test_bitreverse_i32(i32 %a) {
; ALL-LABEL: test_bitreverse_i32:
; ALL:       # BB#0:
; ALL-NEXT:    vmovd %edi, %xmm0
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    vmovd %xmm0, %eax
; ALL-NEXT:    retq
  %b = call i32 @llvm.bitreverse.i32(i32 %a)
  ret i32 %b
}

define i64 @test_bitreverse_i64(i64 %a) {
; ALL-LABEL: test_bitreverse_i64:
; ALL:       # BB#0:
; ALL-NEXT:    vmovq %rdi, %xmm0
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    vmovq %xmm0, %rax
; ALL-NEXT:    retq
  %b = call i64 @llvm.bitreverse.i64(i64 %a)
  ret i64 %b
}

define <16 x i8> @test_bitreverse_v16i8(<16 x i8> %a) {
; ALL-LABEL: test_bitreverse_v16i8:
; ALL:       # BB#0:
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    retq
  %b = call <16 x i8> @llvm.bitreverse.v16i8(<16 x i8> %a)
  ret <16 x i8> %b
}

define <8 x i16> @test_bitreverse_v8i16(<8 x i16> %a) {
; ALL-LABEL: test_bitreverse_v8i16:
; ALL:       # BB#0:
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    retq
  %b = call <8 x i16> @llvm.bitreverse.v8i16(<8 x i16> %a)
  ret <8 x i16> %b
}

define <4 x i32> @test_bitreverse_v4i32(<4 x i32> %a) {
; ALL-LABEL: test_bitreverse_v4i32:
; ALL:       # BB#0:
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    retq
  %b = call <4 x i32> @llvm.bitreverse.v4i32(<4 x i32> %a)
  ret <4 x i32> %b
}

define <2 x i64> @test_bitreverse_v2i64(<2 x i64> %a) {
; ALL-LABEL: test_bitreverse_v2i64:
; ALL:       # BB#0:
; ALL-NEXT:    vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
; ALL-NEXT:    retq
  %b = call <2 x i64> @llvm.bitreverse.v2i64(<2 x i64> %a)
  ret <2 x i64> %b
}

define <32 x i8> @test_bitreverse_v32i8(<32 x i8> %a) {
; XOPAVX1-LABEL: test_bitreverse_v32i8:
; XOPAVX1:       # BB#0:
; XOPAVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; XOPAVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95]
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX1-NEXT:    retq
;
; XOPAVX2-LABEL: test_bitreverse_v32i8:
; XOPAVX2:       # BB#0:
; XOPAVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; XOPAVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95]
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX2-NEXT:    retq
  %b = call <32 x i8> @llvm.bitreverse.v32i8(<32 x i8> %a)
  ret <32 x i8> %b
}

define <16 x i16> @test_bitreverse_v16i16(<16 x i16> %a) {
; XOPAVX1-LABEL: test_bitreverse_v16i16:
; XOPAVX1:       # BB#0:
; XOPAVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; XOPAVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [81,80,83,82,85,84,87,86,89,88,91,90,93,92,95,94]
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX1-NEXT:    retq
;
; XOPAVX2-LABEL: test_bitreverse_v16i16:
; XOPAVX2:       # BB#0:
; XOPAVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; XOPAVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [81,80,83,82,85,84,87,86,89,88,91,90,93,92,95,94]
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX2-NEXT:    retq
  %b = call <16 x i16> @llvm.bitreverse.v16i16(<16 x i16> %a)
  ret <16 x i16> %b
}

define <8 x i32> @test_bitreverse_v8i32(<8 x i32> %a) {
; XOPAVX1-LABEL: test_bitreverse_v8i32:
; XOPAVX1:       # BB#0:
; XOPAVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; XOPAVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [83,82,81,80,87,86,85,84,91,90,89,88,95,94,93,92]
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX1-NEXT:    retq
;
; XOPAVX2-LABEL: test_bitreverse_v8i32:
; XOPAVX2:       # BB#0:
; XOPAVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; XOPAVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [83,82,81,80,87,86,85,84,91,90,89,88,95,94,93,92]
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX2-NEXT:    retq
  %b = call <8 x i32> @llvm.bitreverse.v8i32(<8 x i32> %a)
  ret <8 x i32> %b
}

define <4 x i64> @test_bitreverse_v4i64(<4 x i64> %a) {
; XOPAVX1-LABEL: test_bitreverse_v4i64:
; XOPAVX1:       # BB#0:
; XOPAVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
; XOPAVX1-NEXT:    vmovdqa {{.*#+}} xmm2 = [87,86,85,84,83,82,81,80,95,94,93,92,91,90,89,88]
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX1-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX1-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX1-NEXT:    retq
;
; XOPAVX2-LABEL: test_bitreverse_v4i64:
; XOPAVX2:       # BB#0:
; XOPAVX2-NEXT:    vextracti128 $1, %ymm0, %xmm1
; XOPAVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [87,86,85,84,83,82,81,80,95,94,93,92,91,90,89,88]
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm1, %xmm0, %xmm1
; XOPAVX2-NEXT:    vpperm %xmm2, %xmm0, %xmm0, %xmm0
; XOPAVX2-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
; XOPAVX2-NEXT:    retq
  %b = call <4 x i64> @llvm.bitreverse.v4i64(<4 x i64> %a)
  ret <4 x i64> %b
}

declare i8 @llvm.bitreverse.i8(i8) readnone
declare i16 @llvm.bitreverse.i16(i16) readnone
declare i32 @llvm.bitreverse.i32(i32) readnone
declare i64 @llvm.bitreverse.i64(i64) readnone

declare <16 x i8> @llvm.bitreverse.v16i8(<16 x i8>) readnone
declare <8 x i16> @llvm.bitreverse.v8i16(<8 x i16>) readnone
declare <4 x i32> @llvm.bitreverse.v4i32(<4 x i32>) readnone
declare <2 x i64> @llvm.bitreverse.v2i64(<2 x i64>) readnone

declare <32 x i8>  @llvm.bitreverse.v32i8(<32 x i8>) readnone
declare <16 x i16> @llvm.bitreverse.v16i16(<16 x i16>) readnone
declare <8 x i32>  @llvm.bitreverse.v8i32(<8 x i32>) readnone
declare <4 x i64>  @llvm.bitreverse.v4i64(<4 x i64>) readnone