1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -O1                   -S < %s  | FileCheck %s
3; RUN: opt -passes='default<O1>' -S < %s  | FileCheck %s
4
5; This is an important benchmark for color-space-conversion.
6; It should reduce to contain only 1 'not' op.
7
8declare void @use(i8, i8, i8, i8)
9
10define void @cmyk(i8 %r, i8 %g, i8 %b) {
11; CHECK-LABEL: @cmyk(
12; CHECK-NEXT:  entry:
13; CHECK-NEXT:    [[TMP0:%.*]] = icmp sgt i8 [[R:%.*]], [[B:%.*]]
14; CHECK-NEXT:    [[TMP1:%.*]] = select i1 [[TMP0]], i8 [[R]], i8 [[B]]
15; CHECK-NEXT:    [[TMP2:%.*]] = icmp sgt i8 [[TMP1]], [[G:%.*]]
16; CHECK-NEXT:    [[TMP3:%.*]] = select i1 [[TMP2]], i8 [[TMP1]], i8 [[G]]
17; CHECK-NEXT:    [[TMP4:%.*]] = xor i8 [[TMP3]], -1
18; CHECK-NEXT:    [[SUB31:%.*]] = sub i8 [[TMP3]], [[R]]
19; CHECK-NEXT:    [[SUB35:%.*]] = sub i8 [[TMP3]], [[G]]
20; CHECK-NEXT:    [[SUB39:%.*]] = sub i8 [[TMP3]], [[B]]
21; CHECK-NEXT:    call void @use(i8 [[SUB31]], i8 [[SUB35]], i8 [[SUB39]], i8 [[TMP4]])
22; CHECK-NEXT:    ret void
23;
24entry:
25  %conv = sext i8 %r to i32
26  %sub = sub nsw i32 255, %conv
27  %conv1 = trunc i32 %sub to i8
28  %conv2 = sext i8 %g to i32
29  %sub3 = sub nsw i32 255, %conv2
30  %conv4 = trunc i32 %sub3 to i8
31  %conv5 = sext i8 %b to i32
32  %sub6 = sub nsw i32 255, %conv5
33  %conv7 = trunc i32 %sub6 to i8
34  %conv8 = sext i8 %conv1 to i32
35  %conv9 = sext i8 %conv4 to i32
36  %cmp = icmp slt i32 %conv8, %conv9
37  br i1 %cmp, label %if.then, label %if.else
38
39if.then:
40  %conv12 = sext i8 %conv7 to i32
41  %cmp13 = icmp slt i32 %conv8, %conv12
42  %cond = select i1 %cmp13, i32 %conv8, i32 %conv12
43  %conv17 = trunc i32 %cond to i8
44  br label %if.end
45
46if.else:
47  %conv19 = sext i8 %conv7 to i32
48  %cmp20 = icmp slt i32 %conv9, %conv19
49  %cond27 = select i1 %cmp20, i32 %conv9, i32 %conv19
50  %conv28 = trunc i32 %cond27 to i8
51  br label %if.end
52
53if.end:
54  %k.0 = phi i8 [ %conv17, %if.then ], [ %conv28, %if.else ]
55  %conv30 = sext i8 %k.0 to i32
56  %sub31 = sub nsw i32 %conv8, %conv30
57  %conv32 = trunc i32 %sub31 to i8
58  %sub35 = sub nsw i32 %conv9, %conv30
59  %conv36 = trunc i32 %sub35 to i8
60  %conv37 = sext i8 %conv7 to i32
61  %sub39 = sub nsw i32 %conv37, %conv30
62  %conv40 = trunc i32 %sub39 to i8
63  call void @use(i8 %conv32, i8 %conv36, i8 %conv40, i8 %k.0)
64  ret void
65}
66