1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s
3; Note: The -loops above can be anything that requires the domtree, and is
4; necessary to work around a pass-manager bug.
5
6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
7target triple = "x86_64-unknown-linux-gnu"
8
9; Function Attrs: nounwind uwtable
10define void @foo(i32* %a, i32* %b) #0 {
11; CHECK-LABEL: @foo(
12; CHECK-NEXT:  entry:
13; CHECK-NEXT:    [[PTRINT:%.*]] = ptrtoint i32* [[A:%.*]] to i64
14; CHECK-NEXT:    [[MASKEDPTR:%.*]] = and i64 [[PTRINT]], 63
15; CHECK-NEXT:    [[MASKCOND:%.*]] = icmp eq i64 [[MASKEDPTR]], 0
16; CHECK-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND]])
17; CHECK-NEXT:    [[PTRINT1:%.*]] = ptrtoint i32* [[B:%.*]] to i64
18; CHECK-NEXT:    [[MASKEDPTR2:%.*]] = and i64 [[PTRINT1]], 63
19; CHECK-NEXT:    [[MASKCOND3:%.*]] = icmp eq i64 [[MASKEDPTR2]], 0
20; CHECK-NEXT:    tail call void @llvm.assume(i1 [[MASKCOND3]])
21; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
22; CHECK:       for.body:
23; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
24; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[INDVARS_IV]]
25; CHECK-NEXT:    [[TMP0:%.*]] = load i32, i32* [[ARRAYIDX]], align 64
26; CHECK-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP0]], 1
27; CHECK-NEXT:    [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV]]
28; CHECK-NEXT:    store i32 [[ADD]], i32* [[ARRAYIDX5]], align 64
29; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 16
30; CHECK-NEXT:    [[TMP1:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32
31; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[TMP1]], 1648
32; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END:%.*]]
33; CHECK:       for.end:
34; CHECK-NEXT:    ret void
35;
36entry:
37  %ptrint = ptrtoint i32* %a to i64
38  %maskedptr = and i64 %ptrint, 63
39  %maskcond = icmp eq i64 %maskedptr, 0
40  tail call void @llvm.assume(i1 %maskcond)
41  %ptrint1 = ptrtoint i32* %b to i64
42  %maskedptr2 = and i64 %ptrint1, 63
43  %maskcond3 = icmp eq i64 %maskedptr2, 0
44  tail call void @llvm.assume(i1 %maskcond3)
45  br label %for.body
46
47
48for.body:                                         ; preds = %entry, %for.body
49  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
50  %arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv
51  %0 = load i32, i32* %arrayidx, align 4
52  %add = add nsw i32 %0, 1
53  %arrayidx5 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
54  store i32 %add, i32* %arrayidx5, align 4
55  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 16
56  %1 = trunc i64 %indvars.iv.next to i32
57  %cmp = icmp slt i32 %1, 1648
58  br i1 %cmp, label %for.body, label %for.end
59
60for.end:                                          ; preds = %for.body
61  ret void
62}
63
64; Function Attrs: nounwind
65declare void @llvm.assume(i1) #1
66
67attributes #0 = { nounwind uwtable }
68attributes #1 = { nounwind }
69
70