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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -O1 -S < %s | FileCheck %s
; RUN: opt -passes='default<O1>' -S < %s | FileCheck %s
; This is an important benchmark for color-space-conversion.
; It should reduce to contain only 1 'not' op.
declare void @use(i8, i8, i8, i8)
define void @cmyk(i8 %r, i8 %g, i8 %b) {
; CHECK-LABEL: @cmyk(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = tail call i8 @llvm.smax.i8(i8 [[R:%.*]], i8 [[G:%.*]])
; CHECK-NEXT: [[TMP1:%.*]] = tail call i8 @llvm.smax.i8(i8 [[B:%.*]], i8 [[TMP0]])
; CHECK-NEXT: [[K_0:%.*]] = xor i8 [[TMP1]], -1
; CHECK-NEXT: [[SUB31:%.*]] = sub i8 [[TMP1]], [[R]]
; CHECK-NEXT: [[SUB35:%.*]] = sub i8 [[TMP1]], [[G]]
; CHECK-NEXT: [[SUB39:%.*]] = sub i8 [[TMP1]], [[B]]
; CHECK-NEXT: tail call void @use(i8 [[SUB31]], i8 [[SUB35]], i8 [[SUB39]], i8 [[K_0]])
; CHECK-NEXT: ret void
;
entry:
%conv = sext i8 %r to i32
%sub = sub nsw i32 255, %conv
%conv1 = trunc i32 %sub to i8
%conv2 = sext i8 %g to i32
%sub3 = sub nsw i32 255, %conv2
%conv4 = trunc i32 %sub3 to i8
%conv5 = sext i8 %b to i32
%sub6 = sub nsw i32 255, %conv5
%conv7 = trunc i32 %sub6 to i8
%conv8 = sext i8 %conv1 to i32
%conv9 = sext i8 %conv4 to i32
%cmp = icmp slt i32 %conv8, %conv9
br i1 %cmp, label %if.then, label %if.else
if.then:
%conv12 = sext i8 %conv7 to i32
%cmp13 = icmp slt i32 %conv8, %conv12
%cond = select i1 %cmp13, i32 %conv8, i32 %conv12
%conv17 = trunc i32 %cond to i8
br label %if.end
if.else:
%conv19 = sext i8 %conv7 to i32
%cmp20 = icmp slt i32 %conv9, %conv19
%cond27 = select i1 %cmp20, i32 %conv9, i32 %conv19
%conv28 = trunc i32 %cond27 to i8
br label %if.end
if.end:
%k.0 = phi i8 [ %conv17, %if.then ], [ %conv28, %if.else ]
%conv30 = sext i8 %k.0 to i32
%sub31 = sub nsw i32 %conv8, %conv30
%conv32 = trunc i32 %sub31 to i8
%sub35 = sub nsw i32 %conv9, %conv30
%conv36 = trunc i32 %sub35 to i8
%conv37 = sext i8 %conv7 to i32
%sub39 = sub nsw i32 %conv37, %conv30
%conv40 = trunc i32 %sub39 to i8
call void @use(i8 %conv32, i8 %conv36, i8 %conv40, i8 %k.0)
ret void
}
|
