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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes="loop(indvars,loop-deletion,loop-unroll-full)" -verify-scev -S %s | FileCheck %s
define i32 @test(i32 %p_16, i1 %c) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[XOR:%.*]] = xor i32 [[P_16:%.*]], 6
; CHECK-NEXT: [[OR_1:%.*]] = or disjoint i32 [[XOR]], [[P_16]]
; CHECK-NEXT: [[XOR_1:%.*]] = xor i32 [[OR_1]], 6
; CHECK-NEXT: [[OR_2:%.*]] = or disjoint i32 [[XOR_1]], [[P_16]]
; CHECK-NEXT: [[XOR_2:%.*]] = xor i32 [[OR_2]], 6
; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK: outer.header:
; CHECK-NEXT: br label [[INNER_HEADER:%.*]]
; CHECK: inner.header:
; CHECK-NEXT: br i1 [[C:%.*]], label [[OUTER_LATCH:%.*]], label [[INNER_LATCH:%.*]]
; CHECK: inner.latch:
; CHECK-NEXT: br i1 [[C]], label [[OUTER_LATCH]], label [[INNER_LATCH_1:%.*]]
; CHECK: inner.latch.1:
; CHECK-NEXT: br i1 [[C]], label [[OUTER_LATCH]], label [[INNER_LATCH_2:%.*]]
; CHECK: inner.latch.2:
; CHECK-NEXT: br i1 [[C]], label [[OUTER_LATCH]], label [[INNER_LATCH_3:%.*]]
; CHECK: inner.latch.3:
; CHECK-NEXT: [[XOR_2_LCSSA:%.*]] = phi i32 [ [[XOR_2]], [[INNER_LATCH_2]] ]
; CHECK-NEXT: [[OR_3:%.*]] = or disjoint i32 [[XOR_2_LCSSA]], [[P_16]]
; CHECK-NEXT: [[XOR_3:%.*]] = xor i32 [[OR_3]], 6
; CHECK-NEXT: ret i32 [[XOR_3]]
; CHECK: outer.latch:
; CHECK-NEXT: br label [[OUTER_HEADER]]
;
entry:
br label %outer.header
outer.header:
%p.1 = phi i32 [ 0, %entry ], [ %p.2.lcssa, %outer.latch ]
br label %inner.header
inner.header:
%p.2 = phi i32 [ %p.1, %outer.header ], [ %xor, %inner.latch]
%p.3 = phi i32 [ 0, %outer.header ], [ %add, %inner.latch ]
br i1 %c, label %outer.latch, label %inner.latch
inner.latch:
%or = or disjoint i32 %p.2, %p_16
%xor = xor i32 %or, 6
%add = add nuw nsw i32 %p.3, 1
%cmp = icmp ult i32 %p.3, 3
br i1 %cmp, label %inner.header, label %exit
outer.latch: ; preds = %for.body2928
%p.2.lcssa = phi i32 [ %p.2, %inner.header ]
br label %outer.header
exit:
%xor.lcssa = phi i32 [ %xor, %inner.latch ]
ret i32 %xor.lcssa
}
|
