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
5 ; This is an important benchmark for color-space-conversion.
6 ; It should reduce to contain only 1 'not' op.
8 declare void @use(i8, i8, i8, i8)
10 define void @cmyk(i8 %r, i8 %g, i8 %b) {
13 ; CHECK-NEXT: [[TMP0:%.*]] = tail call i8 @llvm.smax.i8(i8 [[R:%.*]], i8 [[G:%.*]])
14 ; CHECK-NEXT: [[TMP1:%.*]] = tail call i8 @llvm.smax.i8(i8 [[B:%.*]], i8 [[TMP0]])
15 ; CHECK-NEXT: [[K_0:%.*]] = xor i8 [[TMP1]], -1
16 ; CHECK-NEXT: [[SUB31:%.*]] = sub i8 [[TMP1]], [[R]]
17 ; CHECK-NEXT: [[SUB35:%.*]] = sub i8 [[TMP1]], [[G]]
18 ; CHECK-NEXT: [[SUB39:%.*]] = sub i8 [[TMP1]], [[B]]
19 ; CHECK-NEXT: tail call void @use(i8 [[SUB31]], i8 [[SUB35]], i8 [[SUB39]], i8 [[K_0]])
20 ; CHECK-NEXT: ret void
23 %conv = sext i8 %r to i32
24 %sub = sub nsw i32 255, %conv
25 %conv1 = trunc i32 %sub to i8
26 %conv2 = sext i8 %g to i32
27 %sub3 = sub nsw i32 255, %conv2
28 %conv4 = trunc i32 %sub3 to i8
29 %conv5 = sext i8 %b to i32
30 %sub6 = sub nsw i32 255, %conv5
31 %conv7 = trunc i32 %sub6 to i8
32 %conv8 = sext i8 %conv1 to i32
33 %conv9 = sext i8 %conv4 to i32
34 %cmp = icmp slt i32 %conv8, %conv9
35 br i1 %cmp, label %if.then, label %if.else
38 %conv12 = sext i8 %conv7 to i32
39 %cmp13 = icmp slt i32 %conv8, %conv12
40 %cond = select i1 %cmp13, i32 %conv8, i32 %conv12
41 %conv17 = trunc i32 %cond to i8
45 %conv19 = sext i8 %conv7 to i32
46 %cmp20 = icmp slt i32 %conv9, %conv19
47 %cond27 = select i1 %cmp20, i32 %conv9, i32 %conv19
48 %conv28 = trunc i32 %cond27 to i8
52 %k.0 = phi i8 [ %conv17, %if.then ], [ %conv28, %if.else ]
53 %conv30 = sext i8 %k.0 to i32
54 %sub31 = sub nsw i32 %conv8, %conv30
55 %conv32 = trunc i32 %sub31 to i8
56 %sub35 = sub nsw i32 %conv9, %conv30
57 %conv36 = trunc i32 %sub35 to i8
58 %conv37 = sext i8 %conv7 to i32
59 %sub39 = sub nsw i32 %conv37, %conv30
60 %conv40 = trunc i32 %sub39 to i8
61 call void @use(i8 %conv32, i8 %conv36, i8 %conv40, i8 %k.0)