1 ; RUN: llc -mtriple=thumb-eabi -mattr=+v7,+thumb2 %s -o - | FileCheck %s
3 define i8 @f1(i8* %call1, i8* %call3, i32 %h, i32 %w, i32 %Width) {
6 %mul17 = mul nsw i32 %Width, %h
7 %add = add nsw i32 %mul17, %w
8 %sub19 = sub i32 %add, %Width
9 %sub20 = add i32 %sub19, -1
10 %arrayidx21 = getelementptr inbounds i8, i8* %call1, i32 %sub20
11 %0 = load i8, i8* %arrayidx21, align 1
12 %conv22 = zext i8 %0 to i32
13 %arrayidx25 = getelementptr inbounds i8, i8* %call1, i32 %sub19
14 %1 = load i8, i8* %arrayidx25, align 1
15 %conv26 = zext i8 %1 to i32
16 %mul23189 = add i32 %conv26, %conv22
17 %add30 = add i32 %sub19, 1
18 %arrayidx31 = getelementptr inbounds i8, i8* %call1, i32 %add30
19 %2 = load i8, i8* %arrayidx31, align 1
20 %conv32 = zext i8 %2 to i32
21 ; CHECK: ldrb r{{[0-9]*}}, [r{{[0-9]*}}, #-1]
22 ; CHECK-NEXT: ldrb r{{[0-9]*}}, [r{{[0-9]*}}, #1]
23 %add28190 = add i32 %mul23189, %conv32
24 %sub35 = add i32 %add, -1
25 %arrayidx36 = getelementptr inbounds i8, i8* %call1, i32 %sub35
26 %3 = load i8, i8* %arrayidx36, align 1
27 %conv37 = zext i8 %3 to i32
28 %add34191 = add i32 %add28190, %conv37
29 %arrayidx40 = getelementptr inbounds i8, i8* %call1, i32 %add
30 %4 = load i8, i8* %arrayidx40, align 1
31 %conv41 = zext i8 %4 to i32
32 %mul42 = mul nsw i32 %conv41, 255
33 %add44 = add i32 %add, 1
34 %arrayidx45 = getelementptr inbounds i8, i8* %call1, i32 %add44
35 %5 = load i8, i8* %arrayidx45, align 1
36 %conv46 = zext i8 %5 to i32
37 ; CHECK: ldrb r{{[0-9]*}}, [r{{[0-9]*}}, #-1]
38 ; CHECK-NEXT: ldrb r{{[0-9]*}}, [r{{[0-9]*}}, #1]
39 %add49 = add i32 %add, %Width
40 %sub50 = add i32 %add49, -1
41 %arrayidx51 = getelementptr inbounds i8, i8* %call1, i32 %sub50
42 %6 = load i8, i8* %arrayidx51, align 1
43 %conv52 = zext i8 %6 to i32
44 %arrayidx56 = getelementptr inbounds i8, i8* %call1, i32 %add49
45 %7 = load i8, i8* %arrayidx56, align 1
46 %conv57 = zext i8 %7 to i32
47 %add61 = add i32 %add49, 1
48 %arrayidx62 = getelementptr inbounds i8, i8* %call1, i32 %add61
49 %8 = load i8, i8* %arrayidx62, align 1
50 %conv63 = zext i8 %8 to i32
51 ; CHECK: ldrb r{{[0-9]*}}, [r{{[0-9]*}}, #-1]
52 ; CHECK-NEXT: ldrb{{[.w]*}} r{{[0-9]*}}, [r{{[0-9]*}}, #1]
53 %tmp = add i32 %add34191, %conv46
54 %tmp193 = add i32 %tmp, %conv52
55 %tmp194 = add i32 %tmp193, %conv57
56 %tmp195 = add i32 %tmp194, %conv63
57 %tmp196 = mul i32 %tmp195, -28
58 %add65 = add i32 %tmp196, %mul42
59 %9 = lshr i32 %add65, 8
60 %conv68 = trunc i32 %9 to i8
61 %arrayidx69 = getelementptr inbounds i8, i8* %call3, i32 %add
62 store i8 %conv68, i8* %arrayidx69, align 1