pr28705.ll
2.72 KB
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
64
65
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; PR28705
; RUN: opt < %s -indvars -S | FileCheck %s
; Check IndVarSimplify doesn't replace external use of the induction var
; "%inc.i.i" with "%.sroa.speculated + 1" because it is not profitable.
;
;
define void @foo(i32 %sub.ptr.div.i, i8* %ref.i1174) local_unnamed_addr {
; CHECK-LABEL: @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP_I1137:%.*]] = icmp ugt i32 [[SUB_PTR_DIV_I:%.*]], 3
; CHECK-NEXT: [[DOTSROA_SPECULATED:%.*]] = select i1 [[CMP_I1137]], i32 3, i32 [[SUB_PTR_DIV_I]]
; CHECK-NEXT: [[CMP6483126:%.*]] = icmp eq i32 [[DOTSROA_SPECULATED]], 0
; CHECK-NEXT: br i1 [[CMP6483126]], label [[XZ_EXIT:%.*]], label [[FOR_BODY650_LR_PH:%.*]]
; CHECK: for.body650.lr.ph:
; CHECK-NEXT: br label [[FOR_BODY650:%.*]]
; CHECK: loopexit:
; CHECK-NEXT: [[INC_I_I_LCSSA:%.*]] = phi i32 [ [[INC_I_I:%.*]], [[FOR_BODY650]] ]
; CHECK-NEXT: br label [[XZ_EXIT]]
; CHECK: XZ.exit:
; CHECK-NEXT: [[DB_SROA_9_0_LCSSA:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[INC_I_I_LCSSA]], [[LOOPEXIT:%.*]] ]
; CHECK-NEXT: br label [[END:%.*]]
; CHECK: for.body650:
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[FOR_BODY650_LR_PH]] ], [ [[INC655:%.*]], [[FOR_BODY650]] ]
; CHECK-NEXT: [[IV2:%.*]] = phi i32 [ 1, [[FOR_BODY650_LR_PH]] ], [ [[INC_I_I]], [[FOR_BODY650]] ]
; CHECK-NEXT: [[ARRAYIDX_I_I1105:%.*]] = getelementptr inbounds i8, i8* [[REF_I1174:%.*]], i32 [[IV2]]
; CHECK-NEXT: store i8 7, i8* [[ARRAYIDX_I_I1105]], align 1
; CHECK-NEXT: [[INC_I_I]] = add nuw nsw i32 [[IV2]], 1
; CHECK-NEXT: [[INC655]] = add nuw nsw i32 [[IV]], 1
; CHECK-NEXT: [[CMP648:%.*]] = icmp eq i32 [[INC655]], [[DOTSROA_SPECULATED]]
; CHECK-NEXT: br i1 [[CMP648]], label [[LOOPEXIT]], label [[FOR_BODY650]]
; CHECK: end:
; CHECK-NEXT: ret void
;
entry:
%cmp.i1137 = icmp ugt i32 %sub.ptr.div.i, 3
%.sroa.speculated = select i1 %cmp.i1137, i32 3, i32 %sub.ptr.div.i
%cmp6483126 = icmp eq i32 %.sroa.speculated, 0
br i1 %cmp6483126, label %XZ.exit, label %for.body650.lr.ph
for.body650.lr.ph:
br label %for.body650
loopexit:
%inc.i.i.lcssa = phi i32 [ %inc.i.i, %for.body650 ]
br label %XZ.exit
XZ.exit:
%DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %inc.i.i.lcssa, %loopexit ]
br label %end
for.body650:
%iv = phi i32 [ 0, %for.body650.lr.ph ], [ %inc655, %for.body650 ]
%iv2 = phi i32 [ 1, %for.body650.lr.ph ], [ %inc.i.i, %for.body650 ]
%arrayidx.i.i1105 = getelementptr inbounds i8, i8* %ref.i1174, i32 %iv2
store i8 7, i8* %arrayidx.i.i1105, align 1
%inc.i.i = add i32 %iv2, 1
%inc655 = add i32 %iv, 1
%cmp648 = icmp eq i32 %inc655, %.sroa.speculated
br i1 %cmp648, label %loopexit, label %for.body650
end:
ret void
}