sub-of-not.ll
4.78 KB
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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse,+sse2,+slow-lea,+slow-3ops-lea | FileCheck %s --check-prefixes=ALL,X86,X86-SLOWLEA
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse,+sse2,-slow-lea,-slow-3ops-lea | FileCheck %s --check-prefixes=ALL,X86,X86-FASTLEA
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse,+sse2,+slow-lea,+slow-3ops-lea | FileCheck %s --check-prefixes=ALL,X64,X64-SLOWLEA
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse,+sse2,-slow-lea,-slow-3ops-lea | FileCheck %s --check-prefixes=ALL,X64,X64-FASTLEA
; These two forms are equivalent:
; sub %y, (xor %x, -1)
; add (add %x, 1), %y
; Some targets may prefer one to the other.
define i8 @scalar_i8(i8 %x, i8 %y) nounwind {
; X86-LABEL: scalar_i8:
; X86: # %bb.0:
; X86-NEXT: movb {{[0-9]+}}(%esp), %al
; X86-NEXT: addb {{[0-9]+}}(%esp), %al
; X86-NEXT: incb %al
; X86-NEXT: retl
;
; X64-LABEL: scalar_i8:
; X64: # %bb.0:
; X64-NEXT: # kill: def $esi killed $esi def $rsi
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: leal (%rsi,%rdi), %eax
; X64-NEXT: incb %al
; X64-NEXT: # kill: def $al killed $al killed $eax
; X64-NEXT: retq
%t0 = xor i8 %x, -1
%t1 = sub i8 %y, %t0
ret i8 %t1
}
define i16 @scalar_i16(i16 %x, i16 %y) nounwind {
; X86-LABEL: scalar_i16:
; X86: # %bb.0:
; X86-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NEXT: addw {{[0-9]+}}(%esp), %ax
; X86-NEXT: incl %eax
; X86-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NEXT: retl
;
; X64-LABEL: scalar_i16:
; X64: # %bb.0:
; X64-NEXT: # kill: def $esi killed $esi def $rsi
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: leal 1(%rsi,%rdi), %eax
; X64-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NEXT: retq
%t0 = xor i16 %x, -1
%t1 = sub i16 %y, %t0
ret i16 %t1
}
define i32 @scalar_i32(i32 %x, i32 %y) nounwind {
; X86-SLOWLEA-LABEL: scalar_i32:
; X86-SLOWLEA: # %bb.0:
; X86-SLOWLEA-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-SLOWLEA-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-SLOWLEA-NEXT: addl %ecx, %eax
; X86-SLOWLEA-NEXT: addl $1, %eax
; X86-SLOWLEA-NEXT: retl
;
; X86-FASTLEA-LABEL: scalar_i32:
; X86-FASTLEA: # %bb.0:
; X86-FASTLEA-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-FASTLEA-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-FASTLEA-NEXT: leal 1(%ecx,%eax), %eax
; X86-FASTLEA-NEXT: retl
;
; X64-LABEL: scalar_i32:
; X64: # %bb.0:
; X64-NEXT: # kill: def $esi killed $esi def $rsi
; X64-NEXT: # kill: def $edi killed $edi def $rdi
; X64-NEXT: leal 1(%rsi,%rdi), %eax
; X64-NEXT: retq
%t0 = xor i32 %x, -1
%t1 = sub i32 %y, %t0
ret i32 %t1
}
define i64 @scalar_i64(i64 %x, i64 %y) nounwind {
; X86-LABEL: scalar_i64:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: addl {{[0-9]+}}(%esp), %eax
; X86-NEXT: adcl {{[0-9]+}}(%esp), %edx
; X86-NEXT: addl $1, %eax
; X86-NEXT: adcl $0, %edx
; X86-NEXT: retl
;
; X64-LABEL: scalar_i64:
; X64: # %bb.0:
; X64-NEXT: leaq 1(%rsi,%rdi), %rax
; X64-NEXT: retq
%t0 = xor i64 %x, -1
%t1 = sub i64 %y, %t0
ret i64 %t1
}
define <16 x i8> @vector_i128_i8(<16 x i8> %x, <16 x i8> %y) nounwind {
; ALL-LABEL: vector_i128_i8:
; ALL: # %bb.0:
; ALL-NEXT: paddb %xmm1, %xmm0
; ALL-NEXT: pcmpeqd %xmm1, %xmm1
; ALL-NEXT: psubb %xmm1, %xmm0
; ALL-NEXT: ret{{[l|q]}}
%t0 = xor <16 x i8> %x, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
%t1 = sub <16 x i8> %y, %t0
ret <16 x i8> %t1
}
define <8 x i16> @vector_i128_i16(<8 x i16> %x, <8 x i16> %y) nounwind {
; ALL-LABEL: vector_i128_i16:
; ALL: # %bb.0:
; ALL-NEXT: paddw %xmm1, %xmm0
; ALL-NEXT: pcmpeqd %xmm1, %xmm1
; ALL-NEXT: psubw %xmm1, %xmm0
; ALL-NEXT: ret{{[l|q]}}
%t0 = xor <8 x i16> %x, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
%t1 = sub <8 x i16> %y, %t0
ret <8 x i16> %t1
}
define <4 x i32> @vector_i128_i32(<4 x i32> %x, <4 x i32> %y) nounwind {
; ALL-LABEL: vector_i128_i32:
; ALL: # %bb.0:
; ALL-NEXT: paddd %xmm1, %xmm0
; ALL-NEXT: pcmpeqd %xmm1, %xmm1
; ALL-NEXT: psubd %xmm1, %xmm0
; ALL-NEXT: ret{{[l|q]}}
%t0 = xor <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
%t1 = sub <4 x i32> %y, %t0
ret <4 x i32> %t1
}
define <2 x i64> @vector_i128_i64(<2 x i64> %x, <2 x i64> %y) nounwind {
; ALL-LABEL: vector_i128_i64:
; ALL: # %bb.0:
; ALL-NEXT: paddq %xmm1, %xmm0
; ALL-NEXT: pcmpeqd %xmm1, %xmm1
; ALL-NEXT: psubq %xmm1, %xmm0
; ALL-NEXT: ret{{[l|q]}}
%t0 = xor <2 x i64> %x, <i64 -1, i64 -1>
%t1 = sub <2 x i64> %y, %t0
ret <2 x i64> %t1
}