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
66
67
68
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=irce -irce-print-changed-loops=true < %s | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"
; REQUIRES: asserts
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: bb:
; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK: outer_latch:
; CHECK-NEXT: [[TMP:%.*]] = or i32 [[TMP5:%.*]], 1
; CHECK-NEXT: [[TMP2:%.*]] = add nuw nsw i32 [[TMP5]], 1
; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP8:%.*]], 0
; CHECK-NEXT: br i1 [[TMP3]], label [[RET2:%.*]], label [[OUTER_HEADER]]
; CHECK: outer_header:
; CHECK-NEXT: [[TMP5]] = phi i32 [ 0, [[BB:%.*]] ], [ [[TMP2]], [[OUTER_LATCH:%.*]] ]
; CHECK-NEXT: br label [[INNER_HEADER:%.*]]
; CHECK: inner_exit:
; CHECK-NEXT: [[TMP12_LCSSA:%.*]] = phi i32 [ [[TMP12:%.*]], [[INNER_HEADER]] ]
; CHECK-NEXT: [[TMP7:%.*]] = or i32 [[TMP12_LCSSA]], [[TMP5]]
; CHECK-NEXT: [[TMP8]] = add nuw i32 [[TMP12_LCSSA]], [[TMP5]]
; CHECK-NEXT: [[TMP9:%.*]] = icmp ult i32 [[TMP5]], 0
; CHECK-NEXT: br i1 [[TMP9]], label [[OUTER_LATCH]], label [[RET1:%.*]]
; CHECK: ret1:
; CHECK-NEXT: ret void
; CHECK: inner_header:
; CHECK-NEXT: [[TMP12]] = phi i32 [ [[TMP14:%.*]], [[INNER_HEADER]] ], [ 0, [[OUTER_HEADER]] ]
; CHECK-NEXT: [[TMP13:%.*]] = or i32 [[TMP12]], 1
; CHECK-NEXT: [[TMP14]] = add nuw nsw i32 [[TMP12]], 1
; CHECK-NEXT: br i1 true, label [[INNER_EXIT:%.*]], label [[INNER_HEADER]]
; CHECK: ret2:
; CHECK-NEXT: ret void
;
bb:
br label %outer_header
outer_latch: ; preds = %inner_exit
%tmp = or i32 %tmp5, 1
%tmp2 = add nuw nsw i32 %tmp5, 1
%tmp3 = icmp eq i32 %tmp8, 0
br i1 %tmp3, label %ret2, label %outer_header
outer_header: ; preds = %outer_latch, %bb
%tmp5 = phi i32 [ 0, %bb ], [ %tmp2, %outer_latch ]
br label %inner_header
inner_exit: ; preds = %inner_header
%tmp12.lcssa = phi i32 [ %tmp12, %inner_header ]
%tmp7 = or i32 %tmp12.lcssa, %tmp5
%tmp8 = add nuw i32 %tmp12.lcssa, %tmp5
%tmp9 = icmp ult i32 %tmp5, 0
br i1 %tmp9, label %outer_latch, label %ret1
ret1: ; preds = %inner_exit
ret void
inner_header: ; preds = %inner_header, %outer_header
%tmp12 = phi i32 [ %tmp14, %inner_header ], [ 0, %outer_header ]
%tmp13 = or i32 %tmp12, 1
%tmp14 = add nuw nsw i32 %tmp12, 1
br i1 true, label %inner_exit, label %inner_header
ret2: ; preds = %outer_latch
ret void
}
|
