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2a917c41e4
XOP's VPPERM has some great 'permute operations' that it can do as well as part of shuffling the bytes of a 128-bit vector - in this case we use it to perform BITREVERSE in a single instruction. llvm-svn: 264870
187 lines
6.9 KiB
LLVM
187 lines
6.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+xop,+avx | FileCheck %s --check-prefix=ALL --check-prefix=XOP --check-prefix=XOPAVX1
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+xop,+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=XOP --check-prefix=XOPAVX2
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define i8 @test_bitreverse_i8(i8 %a) {
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; ALL-LABEL: test_bitreverse_i8:
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; ALL: # BB#0:
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; ALL-NEXT: vmovd %edi, %xmm0
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: vpextrb $0, %xmm0, %eax
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; ALL-NEXT: retq
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%b = call i8 @llvm.bitreverse.i8(i8 %a)
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ret i8 %b
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}
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define i16 @test_bitreverse_i16(i16 %a) {
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; ALL-LABEL: test_bitreverse_i16:
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; ALL: # BB#0:
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; ALL-NEXT: vmovd %edi, %xmm0
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: vmovd %xmm0, %eax
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; ALL-NEXT: retq
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%b = call i16 @llvm.bitreverse.i16(i16 %a)
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ret i16 %b
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}
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define i32 @test_bitreverse_i32(i32 %a) {
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; ALL-LABEL: test_bitreverse_i32:
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; ALL: # BB#0:
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; ALL-NEXT: vmovd %edi, %xmm0
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: vmovd %xmm0, %eax
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; ALL-NEXT: retq
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%b = call i32 @llvm.bitreverse.i32(i32 %a)
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ret i32 %b
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}
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define i64 @test_bitreverse_i64(i64 %a) {
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; ALL-LABEL: test_bitreverse_i64:
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; ALL: # BB#0:
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; ALL-NEXT: vmovq %rdi, %xmm0
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: vmovq %xmm0, %rax
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; ALL-NEXT: retq
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%b = call i64 @llvm.bitreverse.i64(i64 %a)
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ret i64 %b
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}
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define <16 x i8> @test_bitreverse_v16i8(<16 x i8> %a) {
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; ALL-LABEL: test_bitreverse_v16i8:
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; ALL: # BB#0:
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: retq
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%b = call <16 x i8> @llvm.bitreverse.v16i8(<16 x i8> %a)
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ret <16 x i8> %b
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}
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define <8 x i16> @test_bitreverse_v8i16(<8 x i16> %a) {
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; ALL-LABEL: test_bitreverse_v8i16:
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; ALL: # BB#0:
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: retq
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%b = call <8 x i16> @llvm.bitreverse.v8i16(<8 x i16> %a)
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ret <8 x i16> %b
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}
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define <4 x i32> @test_bitreverse_v4i32(<4 x i32> %a) {
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; ALL-LABEL: test_bitreverse_v4i32:
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; ALL: # BB#0:
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: retq
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%b = call <4 x i32> @llvm.bitreverse.v4i32(<4 x i32> %a)
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ret <4 x i32> %b
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}
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define <2 x i64> @test_bitreverse_v2i64(<2 x i64> %a) {
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; ALL-LABEL: test_bitreverse_v2i64:
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; ALL: # BB#0:
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; ALL-NEXT: vpperm {{.*}}(%rip), %xmm0, %xmm0, %xmm0
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; ALL-NEXT: retq
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%b = call <2 x i64> @llvm.bitreverse.v2i64(<2 x i64> %a)
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ret <2 x i64> %b
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}
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define <32 x i8> @test_bitreverse_v32i8(<32 x i8> %a) {
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; XOPAVX1-LABEL: test_bitreverse_v32i8:
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; XOPAVX1: # BB#0:
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; XOPAVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
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; XOPAVX1-NEXT: vmovdqa {{.*#+}} xmm2 = [80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95]
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX1-NEXT: retq
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;
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; XOPAVX2-LABEL: test_bitreverse_v32i8:
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; XOPAVX2: # BB#0:
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; XOPAVX2-NEXT: vextracti128 $1, %ymm0, %xmm1
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; XOPAVX2-NEXT: vmovdqa {{.*#+}} xmm2 = [80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95]
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX2-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX2-NEXT: retq
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%b = call <32 x i8> @llvm.bitreverse.v32i8(<32 x i8> %a)
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ret <32 x i8> %b
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}
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define <16 x i16> @test_bitreverse_v16i16(<16 x i16> %a) {
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; XOPAVX1-LABEL: test_bitreverse_v16i16:
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; XOPAVX1: # BB#0:
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; XOPAVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
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; XOPAVX1-NEXT: vmovdqa {{.*#+}} xmm2 = [81,80,83,82,85,84,87,86,89,88,91,90,93,92,95,94]
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX1-NEXT: retq
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;
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; XOPAVX2-LABEL: test_bitreverse_v16i16:
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; XOPAVX2: # BB#0:
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; XOPAVX2-NEXT: vextracti128 $1, %ymm0, %xmm1
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; XOPAVX2-NEXT: vmovdqa {{.*#+}} xmm2 = [81,80,83,82,85,84,87,86,89,88,91,90,93,92,95,94]
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX2-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX2-NEXT: retq
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%b = call <16 x i16> @llvm.bitreverse.v16i16(<16 x i16> %a)
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ret <16 x i16> %b
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}
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define <8 x i32> @test_bitreverse_v8i32(<8 x i32> %a) {
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; XOPAVX1-LABEL: test_bitreverse_v8i32:
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; XOPAVX1: # BB#0:
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; XOPAVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
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; XOPAVX1-NEXT: vmovdqa {{.*#+}} xmm2 = [83,82,81,80,87,86,85,84,91,90,89,88,95,94,93,92]
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX1-NEXT: retq
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;
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; XOPAVX2-LABEL: test_bitreverse_v8i32:
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; XOPAVX2: # BB#0:
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; XOPAVX2-NEXT: vextracti128 $1, %ymm0, %xmm1
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; XOPAVX2-NEXT: vmovdqa {{.*#+}} xmm2 = [83,82,81,80,87,86,85,84,91,90,89,88,95,94,93,92]
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX2-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX2-NEXT: retq
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%b = call <8 x i32> @llvm.bitreverse.v8i32(<8 x i32> %a)
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ret <8 x i32> %b
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}
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define <4 x i64> @test_bitreverse_v4i64(<4 x i64> %a) {
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; XOPAVX1-LABEL: test_bitreverse_v4i64:
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; XOPAVX1: # BB#0:
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; XOPAVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
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; XOPAVX1-NEXT: vmovdqa {{.*#+}} xmm2 = [87,86,85,84,83,82,81,80,95,94,93,92,91,90,89,88]
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX1-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX1-NEXT: retq
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;
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; XOPAVX2-LABEL: test_bitreverse_v4i64:
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; XOPAVX2: # BB#0:
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; XOPAVX2-NEXT: vextracti128 $1, %ymm0, %xmm1
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; XOPAVX2-NEXT: vmovdqa {{.*#+}} xmm2 = [87,86,85,84,83,82,81,80,95,94,93,92,91,90,89,88]
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm1, %xmm0, %xmm1
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; XOPAVX2-NEXT: vpperm %xmm2, %xmm0, %xmm0, %xmm0
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; XOPAVX2-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
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; XOPAVX2-NEXT: retq
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%b = call <4 x i64> @llvm.bitreverse.v4i64(<4 x i64> %a)
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ret <4 x i64> %b
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}
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declare i8 @llvm.bitreverse.i8(i8) readnone
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declare i16 @llvm.bitreverse.i16(i16) readnone
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declare i32 @llvm.bitreverse.i32(i32) readnone
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declare i64 @llvm.bitreverse.i64(i64) readnone
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declare <16 x i8> @llvm.bitreverse.v16i8(<16 x i8>) readnone
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declare <8 x i16> @llvm.bitreverse.v8i16(<8 x i16>) readnone
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declare <4 x i32> @llvm.bitreverse.v4i32(<4 x i32>) readnone
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declare <2 x i64> @llvm.bitreverse.v2i64(<2 x i64>) readnone
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declare <32 x i8> @llvm.bitreverse.v32i8(<32 x i8>) readnone
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declare <16 x i16> @llvm.bitreverse.v16i16(<16 x i16>) readnone
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declare <8 x i32> @llvm.bitreverse.v8i32(<8 x i32>) readnone
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declare <4 x i64> @llvm.bitreverse.v4i64(<4 x i64>) readnone
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