1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s
define i1 @cmp_allbits_concat_i8(i8 %x, i8 %y) {
; CHECK-LABEL: cmp_allbits_concat_i8:
; CHECK: # %bb.0:
; CHECK-NEXT: andl %esi, %edi
; CHECK-NEXT: cmpb $-1, %dil
; CHECK-NEXT: sete %al
; CHECK-NEXT: retq
%zx = zext i8 %x to i16
%zy = zext i8 %y to i16
%sh = shl i16 %zx, 8
%or = or i16 %zy, %sh
%r = icmp eq i16 %or, -1
ret i1 %r
}
define i1 @cmp_anybits_concat_i32(i32 %x, i32 %y) {
; CHECK-LABEL: cmp_anybits_concat_i32:
; CHECK: # %bb.0:
; CHECK-NEXT: orl %esi, %edi
; CHECK-NEXT: setne %al
; CHECK-NEXT: retq
%zx = zext i32 %x to i64
%zy = zext i32 %y to i64
%sh = shl i64 %zx, 32
%or = or i64 %zy, %sh
%r = icmp ne i64 %or, 0
ret i1 %r
}
define i1 @cmp_anybits_concat_shl_shl_i16(i16 %x, i16 %y) {
; CHECK-LABEL: cmp_anybits_concat_shl_shl_i16:
; CHECK: # %bb.0:
; CHECK-NEXT: movzwl %di, %eax
; CHECK-NEXT: movzwl %si, %ecx
; CHECK-NEXT: shlq $8, %rcx
; CHECK-NEXT: orq %rax, %rcx
; CHECK-NEXT: sete %al
; CHECK-NEXT: retq
%zx = zext i16 %x to i64
%zy = zext i16 %y to i64
%sx = shl i64 %zx, 32
%sy = shl i64 %zy, 8
%or = or i64 %sx, %sy
%r = icmp eq i64 %or, 0
ret i1 %r
}
define i1 @cmp_anybits_concat_shl_shl_i16_commute(i16 %x, i16 %y) {
; CHECK-LABEL: cmp_anybits_concat_shl_shl_i16_commute:
; CHECK: # %bb.0:
; CHECK-NEXT: movzwl %di, %eax
; CHECK-NEXT: movzwl %si, %ecx
; CHECK-NEXT: shlq $8, %rcx
; CHECK-NEXT: orq %rax, %rcx
; CHECK-NEXT: sete %al
; CHECK-NEXT: retq
%zx = zext i16 %x to i64
%zy = zext i16 %y to i64
%sx = shl i64 %zx, 32
%sy = shl i64 %zy, 8
%or = or i64 %sy, %sx
%r = icmp eq i64 %or, 0
ret i1 %r
}
; FIXME: Add vector support, but its only worth it if we can freely truncate the
; concat'd vectors.
define <16 x i8> @cmp_allbits_concat_v16i8(<16 x i8> %x, <16 x i8> %y) {
; CHECK-LABEL: cmp_allbits_concat_v16i8:
; CHECK: # %bb.0:
; CHECK-NEXT: movdqa %xmm1, %xmm2
; CHECK-NEXT: punpcklbw {{.*#+}} xmm2 = xmm2[0],xmm0[0],xmm2[1],xmm0[1],xmm2[2],xmm0[2],xmm2[3],xmm0[3],xmm2[4],xmm0[4],xmm2[5],xmm0[5],xmm2[6],xmm0[6],xmm2[7],xmm0[7]
; CHECK-NEXT: punpckhbw {{.*#+}} xmm1 = xmm1[8],xmm0[8],xmm1[9],xmm0[9],xmm1[10],xmm0[10],xmm1[11],xmm0[11],xmm1[12],xmm0[12],xmm1[13],xmm0[13],xmm1[14],xmm0[14],xmm1[15],xmm0[15]
; CHECK-NEXT: pcmpeqd %xmm0, %xmm0
; CHECK-NEXT: pcmpeqw %xmm0, %xmm1
; CHECK-NEXT: pcmpeqw %xmm0, %xmm2
; CHECK-NEXT: packsswb %xmm1, %xmm2
; CHECK-NEXT: movdqa %xmm2, %xmm0
; CHECK-NEXT: retq
%zx = zext <16 x i8> %x to <16 x i16>
%zy = zext <16 x i8> %y to <16 x i16>
%sh = shl <16 x i16> %zx, <i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8>
%or = or <16 x i16> %zy, %sh
%r = icmp eq <16 x i16> %or, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
%s = sext <16 x i1> %r to <16 x i8>
ret <16 x i8> %s
}
define <2 x i64> @cmp_nobits_concat_v2i64(<2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: cmp_nobits_concat_v2i64:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %xmm0, %rax
; CHECK-NEXT: pextrq $1, %xmm0, %rcx
; CHECK-NEXT: movq %xmm1, %rdx
; CHECK-NEXT: pextrq $1, %xmm1, %rsi
; CHECK-NEXT: xorl %edi, %edi
; CHECK-NEXT: orq %rcx, %rsi
; CHECK-NEXT: sete %dil
; CHECK-NEXT: negq %rdi
; CHECK-NEXT: movq %rdi, %xmm1
; CHECK-NEXT: xorl %ecx, %ecx
; CHECK-NEXT: orq %rax, %rdx
; CHECK-NEXT: sete %cl
; CHECK-NEXT: negq %rcx
; CHECK-NEXT: movq %rcx, %xmm0
; CHECK-NEXT: punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
; CHECK-NEXT: retq
%zx = zext <2 x i64> %x to <2 x i128>
%zy = zext <2 x i64> %y to <2 x i128>
%sh = shl <2 x i128> %zx, <i128 64, i128 64>
%or = or <2 x i128> %zy, %sh
%r = icmp eq <2 x i128> %or, zeroinitializer
%s = sext <2 x i1> %r to <2 x i64>
ret <2 x i64> %s
}
|
