1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=CHECK --check-prefix=AVX2
3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512 --check-prefix=AVX512F
4 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512vl | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512 --check-prefix=AVX512VL
7 define <4 x i32> @combine_v4i32_abs_constant() {
8 ; CHECK-LABEL: combine_v4i32_abs_constant:
10 ; CHECK-NEXT: vmovaps {{.*#+}} xmm0 = [0,1,3,2147483648]
12 %1 = call <4 x i32> @llvm.x86.ssse3.pabs.d.128(<4 x i32> <i32 0, i32 -1, i32 3, i32 -2147483648>)
16 define <16 x i16> @combine_v16i16_abs_constant() {
17 ; CHECK-LABEL: combine_v16i16_abs_constant:
19 ; CHECK-NEXT: vmovaps {{.*#+}} ymm0 = [0,1,1,3,3,7,7,255,255,4096,4096,32767,32767,32768,32768,0]
21 %1 = call <16 x i16> @llvm.x86.avx2.pabs.w(<16 x i16> <i16 0, i16 1, i16 -1, i16 3, i16 -3, i16 7, i16 -7, i16 255, i16 -255, i16 4096, i16 -4096, i16 32767, i16 -32767, i16 -32768, i16 32768, i16 65536>)
25 ; fold (abs (abs x)) -> (abs x)
26 define i32 @combine_i32_abs_abs(i32 %a) {
27 ; CHECK-LABEL: combine_i32_abs_abs:
29 ; CHECK-NEXT: movl %edi, %eax
30 ; CHECK-NEXT: negl %eax
31 ; CHECK-NEXT: cmovll %edi, %eax
33 %n1 = sub i32 zeroinitializer, %a
34 %b1 = icmp slt i32 %a, zeroinitializer
35 %a1 = select i1 %b1, i32 %n1, i32 %a
36 %n2 = sub i32 zeroinitializer, %a1
37 %b2 = icmp sgt i32 %a1, zeroinitializer
38 %a2 = select i1 %b2, i32 %a1, i32 %n2
42 define <8 x i16> @combine_v8i16_abs_abs(<8 x i16> %a) {
43 ; CHECK-LABEL: combine_v8i16_abs_abs:
45 ; CHECK-NEXT: vpabsw %xmm0, %xmm0
47 %a1 = call <8 x i16> @llvm.x86.ssse3.pabs.w.128(<8 x i16> %a)
48 %s2 = ashr <8 x i16> %a1, <i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15>
49 %a2 = add <8 x i16> %a1, %s2
50 %x2 = xor <8 x i16> %a2, %s2
54 define <32 x i8> @combine_v32i8_abs_abs(<32 x i8> %a) {
55 ; CHECK-LABEL: combine_v32i8_abs_abs:
57 ; CHECK-NEXT: vpabsb %ymm0, %ymm0
59 %n1 = sub <32 x i8> zeroinitializer, %a
60 %b1 = icmp slt <32 x i8> %a, zeroinitializer
61 %a1 = select <32 x i1> %b1, <32 x i8> %n1, <32 x i8> %a
62 %a2 = call <32 x i8> @llvm.x86.avx2.pabs.b(<32 x i8> %a1)
66 define <4 x i64> @combine_v4i64_abs_abs(<4 x i64> %a) {
67 ; AVX2-LABEL: combine_v4i64_abs_abs:
69 ; AVX2-NEXT: vpxor %xmm1, %xmm1, %xmm1
70 ; AVX2-NEXT: vpsubq %ymm0, %ymm1, %ymm1
71 ; AVX2-NEXT: vblendvpd %ymm0, %ymm1, %ymm0, %ymm0
74 ; AVX512F-LABEL: combine_v4i64_abs_abs:
76 ; AVX512F-NEXT: # kill: def $ymm0 killed $ymm0 def $zmm0
77 ; AVX512F-NEXT: vpabsq %zmm0, %zmm0
78 ; AVX512F-NEXT: # kill: def $ymm0 killed $ymm0 killed $zmm0
81 ; AVX512VL-LABEL: combine_v4i64_abs_abs:
83 ; AVX512VL-NEXT: vpabsq %ymm0, %ymm0
85 %n1 = sub <4 x i64> zeroinitializer, %a
86 %b1 = icmp slt <4 x i64> %a, zeroinitializer
87 %a1 = select <4 x i1> %b1, <4 x i64> %n1, <4 x i64> %a
88 %n2 = sub <4 x i64> zeroinitializer, %a1
89 %b2 = icmp sgt <4 x i64> %a1, zeroinitializer
90 %a2 = select <4 x i1> %b2, <4 x i64> %a1, <4 x i64> %n2
94 ; fold (abs x) -> x iff not-negative
95 define <16 x i8> @combine_v16i8_abs_constant(<16 x i8> %a) {
96 ; CHECK-LABEL: combine_v16i8_abs_constant:
98 ; CHECK-NEXT: vandps {{.*}}(%rip), %xmm0, %xmm0
100 %1 = insertelement <16 x i8> undef, i8 15, i32 0
101 %2 = shufflevector <16 x i8> %1, <16 x i8> undef, <16 x i32> zeroinitializer
102 %3 = and <16 x i8> %a, %2
103 %4 = call <16 x i8> @llvm.x86.ssse3.pabs.b.128(<16 x i8> %3)
107 define <8 x i32> @combine_v8i32_abs_pos(<8 x i32> %a) {
108 ; CHECK-LABEL: combine_v8i32_abs_pos:
110 ; CHECK-NEXT: vpsrld $1, %ymm0, %ymm0
112 %1 = lshr <8 x i32> %a, <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
113 %2 = call <8 x i32> @llvm.x86.avx2.pabs.d(<8 x i32> %1)
117 declare <16 x i8> @llvm.x86.ssse3.pabs.b.128(<16 x i8>) nounwind readnone
118 declare <4 x i32> @llvm.x86.ssse3.pabs.d.128(<4 x i32>) nounwind readnone
119 declare <8 x i16> @llvm.x86.ssse3.pabs.w.128(<8 x i16>) nounwind readnone
121 declare <32 x i8> @llvm.x86.avx2.pabs.b(<32 x i8>) nounwind readnone
122 declare <8 x i32> @llvm.x86.avx2.pabs.d(<8 x i32>) nounwind readnone
123 declare <16 x i16> @llvm.x86.avx2.pabs.w(<16 x i16>) nounwind readnone