1 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 | FileCheck %s
4 define i32 @t1(i32 %a, i32 %b, i8** %retaddr) {
6 ; CHECK: Block address taken
7 ; CHECK-NOT: Address of block that was removed by CodeGen
8 store i8* blockaddress(@t1, %cond_true), i8** %retaddr
9 %tmp2 = icmp eq i32 %a, 0
10 br i1 %tmp2, label %cond_false, label %cond_true
17 %tmp7 = add i32 %b, -1
21 define i32 @t2(i32 %a, i32 %b, i32 %c, i32 %d, i8** %retaddr) {
23 ; CHECK: Block address taken
27 store i8* blockaddress(@t2, %cond_true), i8** %retaddr
28 %tmp2 = icmp sgt i32 %c, 10
29 %tmp5 = icmp slt i32 %d, 4
30 %tmp8 = and i1 %tmp5, %tmp2
31 %tmp13 = add i32 %b, %a
32 br i1 %tmp8, label %cond_true, label %UnifiedReturnBlock
35 %tmp15 = add i32 %tmp13, %c
36 %tmp1821 = sub i32 %tmp15, %d
43 define hidden fastcc void @t3(i8** %retaddr) {
45 ; CHECK: Block address taken
46 ; CHECK-NOT: Address of block that was removed by CodeGen
48 store i8* blockaddress(@t3, %KBBlockZero_return_1), i8** %retaddr
49 br i1 undef, label %bb77, label %bb7.i
51 bb7.i: ; preds = %bb35
54 KBBlockZero_return_1: ; preds = %KBBlockZero.exit
57 KBBlockZero_return_0: ; preds = %KBBlockZero.exit
60 bb77: ; preds = %bb26, %bb12, %bb
63 bb2.i: ; preds = %bb6.i350, %bb7.i
64 br i1 undef, label %bb6.i350, label %KBBlockZero.exit
66 bb6.i350: ; preds = %bb2.i
69 KBBlockZero.exit: ; preds = %bb2.i
70 indirectbr i8* undef, [label %KBBlockZero_return_1, label %KBBlockZero_return_0]
74 ; If-converter was checking for the wrong predicate subsumes pattern when doing
76 ; E.g., Let A be a basic block that flows conditionally into B and B be a
78 ; B can be predicated with A.BrToBPredicate into A iff B.Predicate is less
79 ; "permissive" than A.BrToBPredicate, i.e., iff A.BrToBPredicate subsumes
81 ; <rdar://problem/14379453>
83 ; Hard-coded registers comes from the ABI.
84 ; CHECK: wrapDistance:
87 ; CHECK-NEXT: suble r0, r2, #1
89 ; CHECK-NEXT: subs [[REG:r[0-9]+]], #120
90 ; CHECK-NEXT: cmp [[REG]], r1
92 ; CHECK-NEXT: bge [[LABEL:.+]]
97 ; CHECK-NEXT: addle r0, r1, #1
101 ; CHECK-NEXT: subs r0, r1, r0
103 define i32 @wrapDistance(i32 %tx, i32 %sx, i32 %w) {
105 %cmp = icmp slt i32 %sx, 60
106 br i1 %cmp, label %if.then, label %if.else
108 if.then: ; preds = %entry
109 %sub = add nsw i32 %w, -1
112 if.else: ; preds = %entry
113 %sub1 = add nsw i32 %w, -120
114 %cmp2 = icmp slt i32 %sub1, %sx
115 %cmp3 = icmp slt i32 %tx, 120
116 %or.cond = and i1 %cmp2, %cmp3
117 br i1 %or.cond, label %if.then4, label %if.end5
119 if.then4: ; preds = %if.else
120 %add = add nsw i32 %sx, 1
123 if.end5: ; preds = %if.else
124 %sub6 = sub nsw i32 %sx, %tx
127 return: ; preds = %if.end5, %if.then4, %if.then
128 %retval.0 = phi i32 [ %sub, %if.then ], [ %add, %if.then4 ], [ %sub6, %if.end5 ]