1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=i686-- | FileCheck %s
16 define i32 @t(i32 %a, i32 %b) nounwind {
18 ; CHECK: # %bb.0: # %entry
19 ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
20 ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edx
21 ; CHECK-NEXT: cmpl %ecx, %edx
22 ; CHECK-NEXT: jne .LBB0_2
23 ; CHECK-NEXT: # %bb.1:
24 ; CHECK-NEXT: movl %edx, %eax
26 ; CHECK-NEXT: .p2align 4, 0x90
27 ; CHECK-NEXT: .LBB0_2: # %bb.outer
28 ; CHECK-NEXT: # =>This Loop Header: Depth=1
29 ; CHECK-NEXT: # Child Loop BB0_3 Depth 2
30 ; CHECK-NEXT: movl %edx, %eax
31 ; CHECK-NEXT: .p2align 4, 0x90
32 ; CHECK-NEXT: .LBB0_3: # %bb
33 ; CHECK-NEXT: # Parent Loop BB0_2 Depth=1
34 ; CHECK-NEXT: # => This Inner Loop Header: Depth=2
35 ; CHECK-NEXT: subl %ecx, %eax
36 ; CHECK-NEXT: jle .LBB0_5
37 ; CHECK-NEXT: # %bb.4: # %cond_true
38 ; CHECK-NEXT: # in Loop: Header=BB0_3 Depth=2
39 ; CHECK-NEXT: cmpl %eax, %ecx
40 ; CHECK-NEXT: movl %eax, %edx
41 ; CHECK-NEXT: jne .LBB0_3
42 ; CHECK-NEXT: jmp .LBB0_6
43 ; CHECK-NEXT: .p2align 4, 0x90
44 ; CHECK-NEXT: .LBB0_5: # %cond_false
45 ; CHECK-NEXT: # in Loop: Header=BB0_2 Depth=1
46 ; CHECK-NEXT: subl %edx, %ecx
47 ; CHECK-NEXT: cmpl %edx, %ecx
48 ; CHECK-NEXT: movl %edx, %eax
49 ; CHECK-NEXT: jne .LBB0_2
50 ; CHECK-NEXT: .LBB0_6: # %bb17
53 %tmp1434 = icmp eq i32 %a, %b ; <i1> [#uses=1]
54 br i1 %tmp1434, label %bb17, label %bb.outer
56 bb.outer: ; preds = %cond_false, %entry
57 %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ] ; <i32> [#uses=5]
58 %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1]
61 bb: ; preds = %cond_true, %bb.outer
62 %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ] ; <i32> [#uses=2]
63 %tmp. = sub i32 0, %b_addr.021.0.ph ; <i32> [#uses=1]
64 %tmp.40 = mul i32 %indvar, %tmp. ; <i32> [#uses=1]
65 %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph ; <i32> [#uses=6]
66 %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph ; <i1> [#uses=1]
67 br i1 %tmp3, label %cond_true, label %cond_false
69 cond_true: ; preds = %bb
70 %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph ; <i32> [#uses=2]
71 %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph ; <i1> [#uses=1]
72 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
73 br i1 %tmp1437, label %bb17, label %bb
75 cond_false: ; preds = %bb
76 %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0 ; <i32> [#uses=2]
77 %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10 ; <i1> [#uses=1]
78 br i1 %tmp14, label %bb17, label %bb.outer
80 bb17: ; preds = %cond_false, %cond_true, %entry
81 %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ] ; <i32> [#uses=1]