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.
6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
7 target triple = "x86_64-unknown-linux-gnu"
9 ; Function Attrs: nounwind uwtable
10 define void @foo(i32* %a, i32* %b) #0 {
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:%.*]]
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:%.*]]
34 ; CHECK-NEXT: ret void
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)
48 for.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
60 for.end: ; preds = %for.body
64 ; Function Attrs: nounwind
65 declare void @llvm.assume(i1) #1
67 attributes #0 = { nounwind uwtable }
68 attributes #1 = { nounwind }