xref: /llvm-project/llvm/test/CodeGen/PowerPC/select-constant-xor.ll (revision b922a3621116b404d868af8b74cab25ab78555be)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-unknown %s -o - | FileCheck %s
3
4define i32 @xori64i32(i64 %a) {
5; CHECK-LABEL: xori64i32:
6; CHECK:       # %bb.0:
7; CHECK-NEXT:    sradi 3, 3, 63
8; CHECK-NEXT:    xori 3, 3, 65535
9; CHECK-NEXT:    xoris 3, 3, 32767
10; CHECK-NEXT:    blr
11  %shr4 = ashr i64 %a, 63
12  %conv5 = trunc i64 %shr4 to i32
13  %xor = xor i32 %conv5, 2147483647
14  ret i32 %xor
15}
16
17define i64 @selecti64i64(i64 %a) {
18; CHECK-LABEL: selecti64i64:
19; CHECK:       # %bb.0:
20; CHECK-NEXT:    sradi 3, 3, 63
21; CHECK-NEXT:    xori 3, 3, 65535
22; CHECK-NEXT:    xoris 3, 3, 32767
23; CHECK-NEXT:    blr
24  %c = icmp sgt i64 %a, -1
25  %s = select i1 %c, i64 2147483647, i64 -2147483648
26  ret i64 %s
27}
28
29define i32 @selecti64i32(i64 %a) {
30; CHECK-LABEL: selecti64i32:
31; CHECK:       # %bb.0:
32; CHECK-NEXT:    sradi 3, 3, 63
33; CHECK-NEXT:    xori 3, 3, 65535
34; CHECK-NEXT:    xoris 3, 3, 32767
35; CHECK-NEXT:    blr
36  %c = icmp sgt i64 %a, -1
37  %s = select i1 %c, i32 2147483647, i32 -2147483648
38  ret i32 %s
39}
40
41define i64 @selecti32i64(i32 %a) {
42; CHECK-LABEL: selecti32i64:
43; CHECK:       # %bb.0:
44; CHECK-NEXT:    srawi 3, 3, 31
45; CHECK-NEXT:    xori 3, 3, 65535
46; CHECK-NEXT:    xoris 3, 3, 32767
47; CHECK-NEXT:    blr
48  %c = icmp sgt i32 %a, -1
49  %s = select i1 %c, i64 2147483647, i64 -2147483648
50  ret i64 %s
51}
52
53
54
55define i8 @xori32i8(i32 %a) {
56; CHECK-LABEL: xori32i8:
57; CHECK:       # %bb.0:
58; CHECK-NEXT:    srawi 3, 3, 31
59; CHECK-NEXT:    xori 3, 3, 84
60; CHECK-NEXT:    blr
61  %shr4 = ashr i32 %a, 31
62  %conv5 = trunc i32 %shr4 to i8
63  %xor = xor i8 %conv5, 84
64  ret i8 %xor
65}
66
67define i32 @selecti32i32(i32 %a) {
68; CHECK-LABEL: selecti32i32:
69; CHECK:       # %bb.0:
70; CHECK-NEXT:    srawi 3, 3, 31
71; CHECK-NEXT:    xori 3, 3, 84
72; CHECK-NEXT:    blr
73  %c = icmp sgt i32 %a, -1
74  %s = select i1 %c, i32 84, i32 -85
75  ret i32 %s
76}
77
78define i8 @selecti32i8(i32 %a) {
79; CHECK-LABEL: selecti32i8:
80; CHECK:       # %bb.0:
81; CHECK-NEXT:    srawi 3, 3, 31
82; CHECK-NEXT:    xori 3, 3, 84
83; CHECK-NEXT:    blr
84  %c = icmp sgt i32 %a, -1
85  %s = select i1 %c, i8 84, i8 -85
86  ret i8 %s
87}
88
89define i32 @selecti8i32(i8 %a) {
90; CHECK-LABEL: selecti8i32:
91; CHECK:       # %bb.0:
92; CHECK-NEXT:    extsb 3, 3
93; CHECK-NEXT:    srawi 3, 3, 7
94; CHECK-NEXT:    xori 3, 3, 84
95; CHECK-NEXT:    blr
96  %c = icmp sgt i8 %a, -1
97  %s = select i1 %c, i32 84, i32 -85
98  ret i32 %s
99}
100
101define i32 @icmpasreq(i32 %input, i32 %a, i32 %b) {
102; CHECK-LABEL: icmpasreq:
103; CHECK:       # %bb.0:
104; CHECK-NEXT:    cmpwi 3, 0
105; CHECK-NEXT:    isellt 3, 4, 5
106; CHECK-NEXT:    blr
107  %sh = ashr i32 %input, 31
108  %c = icmp eq i32 %sh, -1
109  %s = select i1 %c, i32 %a, i32 %b
110  ret i32 %s
111}
112
113define i32 @icmpasrne(i32 %input, i32 %a, i32 %b) {
114; CHECK-LABEL: icmpasrne:
115; CHECK:       # %bb.0:
116; CHECK-NEXT:    cmpwi 3, -1
117; CHECK-NEXT:    iselgt 3, 4, 5
118; CHECK-NEXT:    blr
119  %sh = ashr i32 %input, 31
120  %c = icmp ne i32 %sh, -1
121  %s = select i1 %c, i32 %a, i32 %b
122  ret i32 %s
123}
124
125define i32 @oneusecmp(i32 %a, i32 %b, i32 %d) {
126; CHECK-LABEL: oneusecmp:
127; CHECK:       # %bb.0:
128; CHECK-NEXT:    cmpwi 3, 0
129; CHECK-NEXT:    srawi 6, 3, 31
130; CHECK-NEXT:    xori 6, 6, 127
131; CHECK-NEXT:    isellt 3, 5, 4
132; CHECK-NEXT:    add 3, 6, 3
133; CHECK-NEXT:    blr
134  %c = icmp sle i32 %a, -1
135  %s = select i1 %c, i32 -128, i32 127
136  %s2 = select i1 %c, i32 %d, i32 %b
137  %x = add i32 %s, %s2
138  ret i32 %x
139}
140