summaryrefslogtreecommitdiff
path: root/test/CodeGen/PowerPC/store-constant.ll
blob: 60b06f34882b4a284813ecd4a5667f2160bc77fd (plain)
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 -verify-machineinstrs | FileCheck %s

@CVal = external local_unnamed_addr global i8, align 1
@SVal = external local_unnamed_addr global i16, align 2
@IVal = external local_unnamed_addr global i32, align 4
@LVal = external local_unnamed_addr global i64, align 8
@USVal = external local_unnamed_addr global i16, align 2
@arr = external local_unnamed_addr global i64*, align 8
@arri = external local_unnamed_addr global i32*, align 8

; Test the same constant can be used by different stores.

%struct.S = type { i64, i8, i16, i32 }

define void @foo(%struct.S* %p) {
  %l4 = bitcast %struct.S* %p to i64*
  store i64 0, i64* %l4, align 8
  %c = getelementptr %struct.S, %struct.S* %p, i64 0, i32 1
  store i8 0, i8* %c, align 8
  %s = getelementptr %struct.S, %struct.S* %p, i64 0, i32 2
  store i16 0, i16* %s, align 2
  %i = getelementptr %struct.S, %struct.S* %p, i64 0, i32 3
  store i32 0, i32* %i, align 4
  ret void

; CHECK-LABEL: @foo
; CHECK:       li 4, 0
; CHECK:       stb 4, 8(3)
; CHECK:       std 4, 0(3)
; CHECK:       sth 4, 10(3)
; CHECK:       stw 4, 12(3)
}

define void @bar(%struct.S* %p) {
  %i = getelementptr %struct.S, %struct.S* %p, i64 0, i32 3
  store i32 2, i32* %i, align 4
  %s = getelementptr %struct.S, %struct.S* %p, i64 0, i32 2
  store i16 2, i16* %s, align 2
  %c = getelementptr %struct.S, %struct.S* %p, i64 0, i32 1
  store i8 2, i8* %c, align 8
  %l4 = bitcast %struct.S* %p to i64*
  store i64 2, i64* %l4, align 8
  ret void

; CHECK-LABEL: @bar
; CHECK:       li 4, 2
; CHECK:       stw 4, 12(3)
; CHECK:       sth 4, 10(3)
; CHECK:       std 4, 0(3)
; CHECK:       stb 4, 8(3)
}

; Function Attrs: norecurse nounwind
define void @setSmallNeg() {
entry:
  store i8 -7, i8* @CVal, align 1
  store i16 -7, i16* @SVal, align 2
  store i32 -7, i32* @IVal, align 4
  store i64 -7, i64* @LVal, align 8
  ret void
; CHECK-LABEL: setSmallNeg
; CHECK: li 7, -7
; CHECK-DAG: stb 7,
; CHECK-DAG: sth 7,
; CHECK-DAG: stw 7,
; CHECK-DAG: std 7,
}

; Function Attrs: norecurse nounwind
define void @setSmallPos() {
entry:
  store i8 8, i8* @CVal, align 1
  store i16 8, i16* @SVal, align 2
  store i32 8, i32* @IVal, align 4
  store i64 8, i64* @LVal, align 8
  ret void
; CHECK-LABEL: setSmallPos
; CHECK: li 7, 8
; CHECK-DAG: stb 7,
; CHECK-DAG: sth 7,
; CHECK-DAG: stw 7,
; CHECK-DAG: std 7,
}

; Function Attrs: norecurse nounwind
define void @setMaxNeg() {
entry:
  store i16 -32768, i16* @SVal, align 2
  store i32 -32768, i32* @IVal, align 4
  store i64 -32768, i64* @LVal, align 8
  ret void
; CHECK-LABEL: setMaxNeg
; CHECK: li 6, -32768
; CHECK-DAG: sth 6,
; CHECK-DAG: stw 6,
; CHECK-DAG: std 6,
}

; Function Attrs: norecurse nounwind
define void @setMaxPos() {
entry:
  store i16 32767, i16* @SVal, align 2
  store i32 32767, i32* @IVal, align 4
  store i64 32767, i64* @LVal, align 8
  ret void
; CHECK-LABEL: setMaxPos
; CHECK: li 6, 32767
; CHECK-DAG: sth 6,
; CHECK-DAG: stw 6,
; CHECK-DAG: std 6,
}

; Function Attrs: norecurse nounwind
define void @setExcessiveNeg() {
entry:
  store i32 -32769, i32* @IVal, align 4
  store i64 -32769, i64* @LVal, align 8
  ret void
; CHECK-LABEL: setExcessiveNeg
; CHECK: lis 5, -1
; CHECK: ori 5, 5, 32767
; CHECK-DAG: stw 5,
; CHECK-DAG: std 5,
}

; Function Attrs: norecurse nounwind
define void @setExcessivePos() {
entry:
  store i16 -32768, i16* @USVal, align 2
  store i32 32768, i32* @IVal, align 4
  store i64 32768, i64* @LVal, align 8
  ret void
; CHECK-LABEL: setExcessivePos
; CHECK: li 6, 0
; CHECK: ori 6, 6, 32768
; CHECK-DAG: sth 6,
; CHECK-DAG: stw 6,
; CHECK-DAG: std 6,
}

define void @SetArr(i32 signext %Len) {
entry:
  %cmp7 = icmp sgt i32 %Len, 0
  br i1 %cmp7, label %for.body.lr.ph, label %for.cond.cleanup

for.body.lr.ph:                                   ; preds = %entry
  %0 = load i64*, i64** @arr, align 8
  %1 = load i32*, i32** @arri, align 8
  %wide.trip.count = zext i32 %Len to i64
  br label %for.body

for.cond.cleanup:                                 ; preds = %for.body, %entry
  ret void

for.body:                                         ; preds = %for.body, %for.body.lr.ph
  %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
  %arrayidx = getelementptr inbounds i64, i64* %0, i64 %indvars.iv
  store i64 -7, i64* %arrayidx, align 8
  %arrayidx2 = getelementptr inbounds i32, i32* %1, i64 %indvars.iv
  store i32 -7, i32* %arrayidx2, align 4
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond, label %for.cond.cleanup, label %for.body
; CHECK-LABEL: SetArr
; CHECK: li 5, -7
; CHECK: stdu 5, 8(3)
; CHECK: stwu 5, 4(4)
}

define void @setSameValDiffSizeCI() {
entry:
  store i32 255, i32* @IVal, align 4
  store i8 -1, i8* @CVal, align 1
  ret void
; CHECK-LABEL: setSameValDiffSizeCI
; CHECK: li 5, 255
; CHECK-DAG: stb 5,
; CHECK-DAG: stw 5,
}

define void @setSameValDiffSizeSI() {
entry:
  store i32 65535, i32* @IVal, align 4
  store i16 -1, i16* @SVal, align 2
  ret void
; CHECK-LABEL: setSameValDiffSizeSI
; CHECK: li 5, 0
; CHECK: ori 5, 5, 65535
; CHECK-DAG: sth 5,
; CHECK-DAG: stw 5,
}