1; RUN: llc < %s -mtriple=arm64-apple-ios3.0.0 -aarch64-enable-collect-loh=false | FileCheck %s
2; rdar://13452552
3; Disable the collecting of LOH so that the labels do not get in the
4; way of the NEXT patterns.
5target datalayout = "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-n32:64-S128"
6
7@block = common global i8* null, align 8
8
9define zeroext i8 @fullGtU(i32 %i1, i32 %i2) {
10; CHECK: fullGtU
11; CHECK: adrp [[PAGE:x[0-9]+]], _block@GOTPAGE
12; CHECK: ldr [[ADDR:x[0-9]+]], {{\[}}[[PAGE]], _block@GOTPAGEOFF]
13; CHECK: sxtw [[I1:x[0-9]+]], w0
14; CHECK: sxtw [[I2:x[0-9]+]], w1
15; CHECK-NEXT: ldr [[BLOCKBASE:x[0-9]+]], {{\[}}[[ADDR]]]
16; CHECK-NEXT: ldrb [[BLOCKVAL1:w[0-9]+]], {{\[}}[[BLOCKBASE]], [[I1]]]
17; CHECK-NEXT: ldrb [[BLOCKVAL2:w[0-9]+]], {{\[}}[[BLOCKBASE]], [[I2]]]
18
19; CHECK-NEXT: cmp [[BLOCKVAL1]], [[BLOCKVAL2]]
20; CHECK-NEXT: b.ne
21; Next BB
22; CHECK: add [[BLOCKBASE1:x[0-9]+]], [[I1]], [[BLOCKBASE]]
23; CHECK-NEXT: add [[BLOCKBASE2:x[0-9]+]], [[I2]], [[BLOCKBASE]]
24; CHECK-NEXT: ldrb [[LOADEDVAL1:w[0-9]+]], {{\[}}[[BLOCKBASE1]], #1]
25; CHECK-NEXT: ldrb [[LOADEDVAL2:w[0-9]+]], {{\[}}[[BLOCKBASE2]], #1]
26; CHECK-NEXT: cmp [[LOADEDVAL1]], [[LOADEDVAL2]]
27; CHECK-NEXT: b.ne
28; Next BB
29; CHECK: ldrb [[LOADEDVAL3:w[0-9]+]], {{\[}}[[BLOCKBASE1]], #2]
30; CHECK-NEXT: ldrb [[LOADEDVAL4:w[0-9]+]], {{\[}}[[BLOCKBASE2]], #2]
31; CHECK-NEXT: cmp [[LOADEDVAL3]], [[LOADEDVAL4]]
32entry:
33  %idxprom = sext i32 %i1 to i64
34  %tmp = load i8*, i8** @block, align 8
35  %arrayidx = getelementptr inbounds i8, i8* %tmp, i64 %idxprom
36  %tmp1 = load i8, i8* %arrayidx, align 1
37  %idxprom1 = sext i32 %i2 to i64
38  %arrayidx2 = getelementptr inbounds i8, i8* %tmp, i64 %idxprom1
39  %tmp2 = load i8, i8* %arrayidx2, align 1
40  %cmp = icmp eq i8 %tmp1, %tmp2
41  br i1 %cmp, label %if.end, label %if.then
42
43if.then:                                          ; preds = %entry
44  %cmp7 = icmp ugt i8 %tmp1, %tmp2
45  %conv9 = zext i1 %cmp7 to i8
46  br label %return
47
48if.end:                                           ; preds = %entry
49  %inc = add nsw i32 %i1, 1
50  %inc10 = add nsw i32 %i2, 1
51  %idxprom11 = sext i32 %inc to i64
52  %arrayidx12 = getelementptr inbounds i8, i8* %tmp, i64 %idxprom11
53  %tmp3 = load i8, i8* %arrayidx12, align 1
54  %idxprom13 = sext i32 %inc10 to i64
55  %arrayidx14 = getelementptr inbounds i8, i8* %tmp, i64 %idxprom13
56  %tmp4 = load i8, i8* %arrayidx14, align 1
57  %cmp17 = icmp eq i8 %tmp3, %tmp4
58  br i1 %cmp17, label %if.end25, label %if.then19
59
60if.then19:                                        ; preds = %if.end
61  %cmp22 = icmp ugt i8 %tmp3, %tmp4
62  %conv24 = zext i1 %cmp22 to i8
63  br label %return
64
65if.end25:                                         ; preds = %if.end
66  %inc26 = add nsw i32 %i1, 2
67  %inc27 = add nsw i32 %i2, 2
68  %idxprom28 = sext i32 %inc26 to i64
69  %arrayidx29 = getelementptr inbounds i8, i8* %tmp, i64 %idxprom28
70  %tmp5 = load i8, i8* %arrayidx29, align 1
71  %idxprom30 = sext i32 %inc27 to i64
72  %arrayidx31 = getelementptr inbounds i8, i8* %tmp, i64 %idxprom30
73  %tmp6 = load i8, i8* %arrayidx31, align 1
74  %cmp34 = icmp eq i8 %tmp5, %tmp6
75  br i1 %cmp34, label %return, label %if.then36
76
77if.then36:                                        ; preds = %if.end25
78  %cmp39 = icmp ugt i8 %tmp5, %tmp6
79  %conv41 = zext i1 %cmp39 to i8
80  br label %return
81
82return:                                           ; preds = %if.then36, %if.end25, %if.then19, %if.then
83  %retval.0 = phi i8 [ %conv9, %if.then ], [ %conv24, %if.then19 ], [ %conv41, %if.then36 ], [ 0, %if.end25 ]
84  ret i8 %retval.0
85}
86