1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; NOTE: Only %local_3_4 is important here.
3 ; All other instructions are needed to lure LLVM into executing
4 ; specific code to trigger a bug.
5 ; RUN: opt < %s -passes=indvars -S | FileCheck %s
9 ; CHECK-NEXT: br label [[OUTER:%.*]]
11 ; CHECK-NEXT: [[LOCAL_6_6:%.*]] = phi i32 [ 10, [[ENTRY:%.*]] ], [ [[TMP5:%.*]], [[LATCH:%.*]] ]
12 ; CHECK-NEXT: [[LOCAL_4_5:%.*]] = phi i32 [ 56587, [[ENTRY]] ], [ 0, [[LATCH]] ]
13 ; CHECK-NEXT: [[LOCAL_3_4:%.*]] = phi i32 [ 2, [[ENTRY]] ], [ [[TMP5]], [[LATCH]] ]
14 ; CHECK-NEXT: [[DOTUDIV:%.*]] = udiv i32 [[LOCAL_6_6]], 8361
15 ; CHECK-NEXT: br label [[INNER:%.*]]
17 ; CHECK-NEXT: [[LOCAL_7_3:%.*]] = phi i32 [ 2, [[OUTER]] ], [ [[TMP3:%.*]], [[INNER]] ]
18 ; CHECK-NEXT: [[LOCAL_4_5_PN:%.*]] = phi i32 [ [[LOCAL_4_5]], [[OUTER]] ], [ [[TMP2:%.*]], [[INNER]] ]
19 ; CHECK-NEXT: [[LOCAL_3_31:%.*]] = mul i32 [[LOCAL_4_5_PN]], [[DOTUDIV]]
20 ; CHECK-NEXT: [[TMP0:%.*]] = mul nuw nsw i32 [[LOCAL_7_3]], [[DOTUDIV]]
21 ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[LOCAL_3_4]]
22 ; CHECK-NEXT: [[TMP2]] = add i32 [[TMP1]], [[LOCAL_3_31]]
23 ; CHECK-NEXT: [[TMP3]] = add nuw nsw i32 [[LOCAL_7_3]], 1
24 ; CHECK-NEXT: [[TMP4:%.*]] = icmp ugt i32 [[LOCAL_7_3]], 4
25 ; CHECK-NEXT: br i1 [[TMP4]], label [[LATCH]], label [[INNER]]
27 ; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi i32 [ [[TMP2]], [[INNER]] ]
28 ; CHECK-NEXT: [[TMP5]] = add nuw nsw i32 [[LOCAL_6_6]], 1
29 ; CHECK-NEXT: [[TMP6:%.*]] = icmp ugt i32 [[LOCAL_6_6]], 276
30 ; CHECK-NEXT: br i1 [[TMP6]], label [[RETURN:%.*]], label [[OUTER]]
32 ; CHECK-NEXT: [[DOTLCSSA_LCSSA:%.*]] = phi i32 [ [[DOTLCSSA]], [[LATCH]] ]
33 ; CHECK-NEXT: ret i32 [[DOTLCSSA_LCSSA]]
39 %local_6_6 = phi i32 [ 10, %entry ], [ %5, %latch ]
40 %local_4_5 = phi i32 [ 56587, %entry ], [ 0, %latch ]
41 %local_3_4 = phi i32 [ 2, %entry ], [ %5, %latch ]
42 %.udiv = udiv i32 %local_6_6, 8361
46 %local_7_3 = phi i32 [ 2, %outer ], [ %3, %inner ]
47 %local_4_5.pn = phi i32 [ %local_4_5, %outer ], [ %2, %inner ]
48 %local_3_31 = mul i32 %local_4_5.pn, %.udiv
49 %0 = mul i32 %local_7_3, %.udiv
50 %1 = sub i32 %0, %local_3_4
51 %2 = add i32 %1, %local_3_31
52 %3 = add nuw nsw i32 %local_7_3, 1
53 %4 = icmp ugt i32 %local_7_3, 4
54 br i1 %4, label %latch, label %inner
57 %.lcssa = phi i32 [ %2, %inner ]
58 %5 = add nuw nsw i32 %local_6_6, 1
59 %6 = icmp ugt i32 %local_6_6, 276
60 br i1 %6, label %return, label %outer
63 %.lcssa.lcssa = phi i32 [ %.lcssa, %latch ]