1 ; RUN: opt < %s -indvars -S "-default-data-layout=e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" | FileCheck %s
2 ; RUN: opt < %s -indvars -S "-default-data-layout=e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32" | FileCheck %s
4 ; PR11279: Assertion !IVLimit->getType()->isPointerTy()
6 ; Test LinearFunctionTestReplace of a pointer-type loop counter. Note
7 ; that BECount may or may not be a pointer type. A pointer type
8 ; BECount doesn't really make sense, but that's what falls out of
9 ; SCEV. Since it's an i8*, it has unit stride so we never adjust the
10 ; SCEV expression in a way that would convert it to an integer type.
12 ; CHECK-LABEL: @testnullptrptr(
15 define i8 @testnullptrptr(i8* %buf, i8* %end) nounwind {
19 %guard = icmp ult i8* null, %end
20 br i1 %guard, label %preheader, label %exit
26 %p.01.us.us = phi i8* [ null, %preheader ], [ %gep, %loop ]
27 %s = phi i8 [0, %preheader], [%snext, %loop]
28 %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1
29 %snext = load i8, i8* %gep
30 %cmp = icmp ult i8* %gep, %end
31 br i1 %cmp, label %loop, label %exit
37 ; CHECK-LABEL: @testptrptr(
40 define i8 @testptrptr(i8* %buf, i8* %end) nounwind {
44 %guard = icmp ult i8* %buf, %end
45 br i1 %guard, label %preheader, label %exit
51 %p.01.us.us = phi i8* [ %buf, %preheader ], [ %gep, %loop ]
52 %s = phi i8 [0, %preheader], [%snext, %loop]
53 %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1
54 %snext = load i8, i8* %gep
55 %cmp = icmp ult i8* %gep, %end
56 br i1 %cmp, label %loop, label %exit
62 ; CHECK-LABEL: @testnullptrint(
65 define i8 @testnullptrint(i8* %buf, i8* %end) nounwind {
69 %bi = ptrtoint i8* %buf to i32
70 %ei = ptrtoint i8* %end to i32
71 %cnt = sub i32 %ei, %bi
72 %guard = icmp ult i32 0, %cnt
73 br i1 %guard, label %preheader, label %exit
79 %p.01.us.us = phi i8* [ null, %preheader ], [ %gep, %loop ]
80 %iv = phi i32 [ 0, %preheader ], [ %ivnext, %loop ]
81 %s = phi i8 [0, %preheader], [%snext, %loop]
82 %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1
83 %snext = load i8, i8* %gep
84 %ivnext = add i32 %iv, 1
85 %cmp = icmp ult i32 %ivnext, %cnt
86 br i1 %cmp, label %loop, label %exit
92 ; CHECK-LABEL: @testptrint(
95 define i8 @testptrint(i8* %buf, i8* %end) nounwind {
99 %bi = ptrtoint i8* %buf to i32
100 %ei = ptrtoint i8* %end to i32
101 %cnt = sub i32 %ei, %bi
102 %guard = icmp ult i32 %bi, %cnt
103 br i1 %guard, label %preheader, label %exit
109 %p.01.us.us = phi i8* [ %buf, %preheader ], [ %gep, %loop ]
110 %iv = phi i32 [ %bi, %preheader ], [ %ivnext, %loop ]
111 %s = phi i8 [0, %preheader], [%snext, %loop]
112 %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1
113 %snext = load i8, i8* %gep
114 %ivnext = add i32 %iv, 1
115 %cmp = icmp ult i32 %ivnext, %cnt
116 br i1 %cmp, label %loop, label %exit
122 ; IV and BECount have two different pointer types here.
123 define void @testnullptr([512 x i8]* %base) nounwind {
125 %add.ptr1603 = getelementptr [512 x i8], [512 x i8]* %base, i64 0, i64 512
129 %cmp1604192 = icmp ult i8* undef, %add.ptr1603
130 br i1 %cmp1604192, label %for.body, label %for.end1609
133 %r.17193 = phi i8* [ %incdec.ptr1608, %for.body ], [ null, %preheader ]
134 %incdec.ptr1608 = getelementptr i8, i8* %r.17193, i64 1
135 %cmp1604 = icmp ult i8* %incdec.ptr1608, %add.ptr1603
136 br i1 %cmp1604, label %for.body, label %for.end1609