1 ; RUN: opt -S -lowerbitsets < %s | FileCheck %s
2 ; RUN: opt -S -lowerbitsets -mtriple=x86_64-apple-macosx10.8.0 < %s | FileCheck -check-prefix=CHECK-DARWIN %s
3 ; RUN: opt -S -O3 < %s | FileCheck -check-prefix=CHECK-NODISCARD %s
5 target datalayout = "e-p:32:32"
7 ; CHECK: [[G:@[^ ]*]] = private constant { i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] } { i32 1, [0 x i8] zeroinitializer, [63 x i32] zeroinitializer, [4 x i8] zeroinitializer, i32 3, [0 x i8] zeroinitializer, [2 x i32] [i32 4, i32 5] }
9 @b = constant [63 x i32] zeroinitializer
11 @d = constant [2 x i32] [i32 4, i32 5]
13 ; CHECK: [[BA:@[^ ]*]] = private constant [68 x i8] c"\03\01\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\02\00\01"
15 ; Offset 0, 4 byte alignment
16 !0 = !{!"bitset1", i32* @a, i32 0}
17 ; CHECK-NODISCARD-DAG: !{!"bitset1", i32* @a, i32 0}
18 !1 = !{!"bitset1", [63 x i32]* @b, i32 0}
19 ; CHECK-NODISCARD-DAG: !{!"bitset1", [63 x i32]* @b, i32 0}
20 !2 = !{!"bitset1", [2 x i32]* @d, i32 4}
21 ; CHECK-NODISCARD-DAG: !{!"bitset1", [2 x i32]* @d, i32 4}
23 ; Offset 4, 256 byte alignment
24 !3 = !{!"bitset2", [63 x i32]* @b, i32 0}
25 ; CHECK-NODISCARD-DAG: !{!"bitset2", [63 x i32]* @b, i32 0}
26 !4 = !{!"bitset2", i32* @c, i32 0}
27 ; CHECK-NODISCARD-DAG: !{!"bitset2", i32* @c, i32 0}
29 ; Offset 0, 4 byte alignment
30 !5 = !{!"bitset3", i32* @a, i32 0}
31 ; CHECK-NODISCARD-DAG: !{!"bitset3", i32* @a, i32 0}
32 !6 = !{!"bitset3", i32* @c, i32 0}
33 ; CHECK-NODISCARD-DAG: !{!"bitset3", i32* @c, i32 0}
35 ; Entries whose second operand is null (the result of a global being DCE'd)
37 !7 = !{!"bitset2", null, i32 0}
39 !llvm.bitsets = !{ !0, !1, !2, !3, !4, !5, !6, !7 }
41 ; CHECK: @a = alias getelementptr inbounds ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }, { i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]], i32 0, i32 0)
42 ; CHECK: @b = alias getelementptr inbounds ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }, { i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]], i32 0, i32 2)
43 ; CHECK: @c = alias getelementptr inbounds ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }, { i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]], i32 0, i32 4)
44 ; CHECK: @d = alias getelementptr inbounds ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }, { i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]], i32 0, i32 6)
45 ; CHECK-DARWIN: @a = private alias
46 ; CHECK-DARWIN: @b = private alias
47 ; CHECK-DARWIN: @c = private alias
48 ; CHECK-DARWIN: @d = private alias
50 ; CHECK: @bits = private alias getelementptr inbounds ([68 x i8], [68 x i8]* [[BA]], i32 0, i32 0)
51 ; CHECK: @bits1 = private alias getelementptr inbounds ([68 x i8], [68 x i8]* [[BA]], i32 0, i32 0)
53 declare i1 @llvm.bitset.test(i8* %ptr, metadata %bitset) nounwind readnone
55 ; CHECK: @foo(i32* [[A0:%[^ ]*]])
56 define i1 @foo(i32* %p) {
57 ; CHECK-NOT: llvm.bitset.test
59 ; CHECK: [[R0:%[^ ]*]] = bitcast i32* [[A0]] to i8*
60 %pi8 = bitcast i32* %p to i8*
61 ; CHECK: [[R1:%[^ ]*]] = ptrtoint i8* [[R0]] to i32
62 ; CHECK: [[R2:%[^ ]*]] = sub i32 [[R1]], ptrtoint ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]] to i32)
63 ; CHECK: [[R3:%[^ ]*]] = lshr i32 [[R2]], 2
64 ; CHECK: [[R4:%[^ ]*]] = shl i32 [[R2]], 30
65 ; CHECK: [[R5:%[^ ]*]] = or i32 [[R3]], [[R4]]
66 ; CHECK: [[R6:%[^ ]*]] = icmp ult i32 [[R5]], 68
69 ; CHECK: [[R8:%[^ ]*]] = getelementptr i8, i8* @bits, i32 [[R5]]
70 ; CHECK: [[R9:%[^ ]*]] = load i8, i8* [[R8]]
71 ; CHECK: [[R10:%[^ ]*]] = and i8 [[R9]], 1
72 ; CHECK: [[R11:%[^ ]*]] = icmp ne i8 [[R10]], 0
74 ; CHECK: [[R16:%[^ ]*]] = phi i1 [ false, {{%[^ ]*}} ], [ [[R11]], {{%[^ ]*}} ]
75 %x = call i1 @llvm.bitset.test(i8* %pi8, metadata !"bitset1")
77 ; CHECK-NOT: llvm.bitset.test
78 %y = call i1 @llvm.bitset.test(i8* %pi8, metadata !"bitset1")
80 ; CHECK: ret i1 [[R16]]
84 ; CHECK: @bar(i32* [[B0:%[^ ]*]])
85 define i1 @bar(i32* %p) {
86 ; CHECK: [[S0:%[^ ]*]] = bitcast i32* [[B0]] to i8*
87 %pi8 = bitcast i32* %p to i8*
88 ; CHECK: [[S1:%[^ ]*]] = ptrtoint i8* [[S0]] to i32
89 ; CHECK: [[S2:%[^ ]*]] = sub i32 [[S1]], add (i32 ptrtoint ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]] to i32), i32 4)
90 ; CHECK: [[S3:%[^ ]*]] = lshr i32 [[S2]], 8
91 ; CHECK: [[S4:%[^ ]*]] = shl i32 [[S2]], 24
92 ; CHECK: [[S5:%[^ ]*]] = or i32 [[S3]], [[S4]]
93 ; CHECK: [[S6:%[^ ]*]] = icmp ult i32 [[S5]], 2
94 %x = call i1 @llvm.bitset.test(i8* %pi8, metadata !"bitset2")
96 ; CHECK: ret i1 [[S6]]
100 ; CHECK: @baz(i32* [[C0:%[^ ]*]])
101 define i1 @baz(i32* %p) {
102 ; CHECK: [[T0:%[^ ]*]] = bitcast i32* [[C0]] to i8*
103 %pi8 = bitcast i32* %p to i8*
104 ; CHECK: [[T1:%[^ ]*]] = ptrtoint i8* [[T0]] to i32
105 ; CHECK: [[T2:%[^ ]*]] = sub i32 [[T1]], ptrtoint ({ i32, [0 x i8], [63 x i32], [4 x i8], i32, [0 x i8], [2 x i32] }* [[G]] to i32)
106 ; CHECK: [[T3:%[^ ]*]] = lshr i32 [[T2]], 2
107 ; CHECK: [[T4:%[^ ]*]] = shl i32 [[T2]], 30
108 ; CHECK: [[T5:%[^ ]*]] = or i32 [[T3]], [[T4]]
109 ; CHECK: [[T6:%[^ ]*]] = icmp ult i32 [[T5]], 66
110 ; CHECK: br i1 [[T6]]
112 ; CHECK: [[T8:%[^ ]*]] = getelementptr i8, i8* @bits1, i32 [[T5]]
113 ; CHECK: [[T9:%[^ ]*]] = load i8, i8* [[T8]]
114 ; CHECK: [[T10:%[^ ]*]] = and i8 [[T9]], 2
115 ; CHECK: [[T11:%[^ ]*]] = icmp ne i8 [[T10]], 0
117 ; CHECK: [[T16:%[^ ]*]] = phi i1 [ false, {{%[^ ]*}} ], [ [[T11]], {{%[^ ]*}} ]
118 %x = call i1 @llvm.bitset.test(i8* %pi8, metadata !"bitset3")
119 ; CHECK: ret i1 [[T16]]
123 ; CHECK-NOT: !llvm.bitsets