1 ; RUN: llc < %s -mtriple=arm-apple-darwin | FileCheck %s
2 ; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck -check-prefix=T2 %s
4 %struct.Foo = type { i8* }
6 define %struct.Foo* @_ZN3Foo7collectEj(%struct.Foo* %this, i32 %acc) nounwind readonly align 2 {
8 %scevgep = getelementptr %struct.Foo* %this, i32 1
11 tailrecurse: ; preds = %sw.bb, %entry
12 %lsr.iv2 = phi %struct.Foo* [ %scevgep3, %sw.bb ], [ %scevgep, %entry ]
13 %lsr.iv = phi i32 [ %lsr.iv.next, %sw.bb ], [ 1, %entry ]
14 %acc.tr = phi i32 [ %or, %sw.bb ], [ %acc, %entry ]
15 %lsr.iv24 = bitcast %struct.Foo* %lsr.iv2 to i8**
16 %scevgep5 = getelementptr i8** %lsr.iv24, i32 -1
17 %tmp2 = load i8** %scevgep5
18 %0 = ptrtoint i8* %tmp2 to i32
20 ; CHECK: ands r12, r12, #3
21 ; CHECK-NEXT: beq LBB0_2
25 ; T2-NEXT: ands r6, r5
30 %tst = icmp eq i32 %and, 0
31 br i1 %tst, label %sw.bb, label %tailrecurse.switch
33 tailrecurse.switch: ; preds = %tailrecurse
34 switch i32 %and, label %sw.epilog [
40 sw.bb: ; preds = %tailrecurse.switch, %tailrecurse
41 %shl = shl i32 %acc.tr, 1
42 %or = or i32 %and, %shl
43 %lsr.iv.next = add i32 %lsr.iv, 1
44 %scevgep3 = getelementptr %struct.Foo* %lsr.iv2, i32 1
47 sw.bb6: ; preds = %tailrecurse.switch
48 ret %struct.Foo* %lsr.iv2
50 sw.bb8: ; preds = %tailrecurse.switch
51 %tmp1 = add i32 %acc.tr, %lsr.iv
52 %add.ptr11 = getelementptr inbounds %struct.Foo* %this, i32 %tmp1
53 ret %struct.Foo* %add.ptr11
55 sw.epilog: ; preds = %tailrecurse.switch
56 ret %struct.Foo* undef