1 ; RUN: llc < %s -frame-pointer=all
2 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"
3 target triple = "i386-apple-macosx10.7"
5 ; This test case has a landing pad with two predecessors, and a variable that
6 ; is undef on the first edge while carrying the first function return value on
9 ; Live range splitting tries to isolate the block containing the first function
10 ; call, and it is important that the last split point is after the function call
11 ; so the return value can spill.
13 ; <rdar://problem/10664933>
15 @Exception = external unnamed_addr constant { i8*, i8* }
17 declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1) nounwind
19 define void @f(i32* nocapture %arg, i32* nocapture %arg1, i32* nocapture %arg2, i32* nocapture %arg3, i32 %arg4, i32 %arg5) optsize ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
21 br i1 undef, label %bb6, label %bb7
24 %tmp = select i1 false, i32 0, i32 undef
27 bb7: ; preds = %bb6, %bb
28 %tmp8 = phi i32 [ %tmp, %bb6 ], [ 0, %bb ]
29 %tmp9 = shl i32 %tmp8, 2
30 %tmp10 = invoke noalias i8* @_Znam(i32 undef) optsize
31 to label %bb11 unwind label %bb20
34 %tmp12 = ptrtoint i8* %tmp10 to i32
35 %tmp13 = bitcast i8* %tmp10 to i32*
36 %tmp14 = shl i32 %tmp8, 2
37 %tmp15 = getelementptr i32, i32* %tmp13, i32 undef
38 %tmp16 = getelementptr i32, i32* %tmp13, i32 undef
39 %tmp17 = zext i32 %tmp9 to i64
40 %tmp18 = add i64 %tmp17, -1
41 %tmp19 = icmp ugt i64 %tmp18, 4294967295
42 br i1 %tmp19, label %bb29, label %bb31
44 bb20: ; preds = %bb43, %bb41, %bb29, %bb7
45 %tmp21 = phi i32 [ undef, %bb7 ], [ %tmp12, %bb43 ], [ %tmp12, %bb29 ], [ %tmp12, %bb41 ]
46 %tmp22 = landingpad { i8*, i32 }
47 catch i8* bitcast ({ i8*, i8* }* @Exception to i8*)
48 br i1 undef, label %bb23, label %bb69
50 bb23: ; preds = %bb38, %bb20
51 %tmp24 = phi i32 [ %tmp12, %bb38 ], [ %tmp21, %bb20 ]
52 %tmp25 = icmp eq i32 %tmp24, 0
53 br i1 %tmp25, label %bb28, label %bb26
56 %tmp27 = inttoptr i32 %tmp24 to i8*
59 bb28: ; preds = %bb26, %bb23
63 invoke void @OnOverFlow() optsize
64 to label %bb30 unwind label %bb20
70 %tmp32 = bitcast i32* %tmp15 to i8*
71 %tmp33 = zext i32 %tmp8 to i64
72 %tmp34 = add i64 %tmp33, -1
73 %tmp35 = icmp ugt i64 %tmp34, 4294967295
74 %tmp36 = icmp sgt i32 %tmp8, 0
75 %tmp37 = add i32 %tmp9, -4
78 bb38: ; preds = %bb67, %bb31
79 %tmp39 = phi i32 [ %tmp68, %bb67 ], [ undef, %bb31 ]
80 %tmp40 = icmp sgt i32 %tmp39, undef
81 br i1 %tmp40, label %bb41, label %bb23
84 invoke void @Pjii(i32* %tmp16, i32 0, i32 %tmp8) optsize
85 to label %bb42 unwind label %bb20
88 tail call void @llvm.memset.p0i8.i32(i8* %tmp32, i8 0, i32 %tmp9, i1 false) nounwind
89 br i1 %tmp35, label %bb43, label %bb45
92 invoke void @OnOverFlow() optsize
93 to label %bb44 unwind label %bb20
98 bb45: ; preds = %bb57, %bb42
99 %tmp46 = phi i32 [ %tmp58, %bb57 ], [ 255, %bb42 ]
100 %tmp47 = icmp slt i32 undef, 0
101 br i1 %tmp47, label %bb48, label %bb59
103 bb48: ; preds = %bb45
104 tail call void @llvm.memset.p0i8.i32(i8* %tmp32, i8 0, i32 %tmp9, i1 false) nounwind
105 br i1 %tmp36, label %bb49, label %bb57
107 bb49: ; preds = %bb49, %bb48
108 %tmp50 = phi i32 [ %tmp55, %bb49 ], [ 0, %bb48 ]
109 %tmp51 = add i32 %tmp50, undef
110 %tmp52 = add i32 %tmp50, undef
111 %tmp53 = getelementptr i32, i32* %tmp13, i32 %tmp52
112 %tmp54 = load i32, i32* %tmp53, align 4
113 %tmp55 = add i32 %tmp50, 1
114 %tmp56 = icmp eq i32 %tmp55, %tmp8
115 br i1 %tmp56, label %bb57, label %bb49
117 bb57: ; preds = %bb49, %bb48
118 %tmp58 = add i32 %tmp46, -1
121 bb59: ; preds = %bb45
122 %tmp60 = ashr i32 %tmp46, 31
123 tail call void @llvm.memset.p0i8.i32(i8* null, i8 0, i32 %tmp37, i1 false) nounwind
124 br i1 %tmp36, label %bb61, label %bb67
126 bb61: ; preds = %bb61, %bb59
127 %tmp62 = phi i32 [ %tmp65, %bb61 ], [ 0, %bb59 ]
128 %tmp63 = add i32 %tmp62, %tmp14
129 %tmp64 = getelementptr i32, i32* %tmp13, i32 %tmp63
130 store i32 0, i32* %tmp64, align 4
131 %tmp65 = add i32 %tmp62, 1
132 %tmp66 = icmp eq i32 %tmp65, %tmp8
133 br i1 %tmp66, label %bb67, label %bb61
135 bb67: ; preds = %bb61, %bb59
136 %tmp68 = add i32 %tmp39, -1
139 bb69: ; preds = %bb20
140 resume { i8*, i32 } %tmp22
143 declare i32 @__gxx_personality_v0(...)
145 declare noalias i8* @_Znam(i32) optsize
147 declare void @Pjii(i32*, i32, i32) optsize
149 declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
151 declare void @OnOverFlow() noreturn optsize ssp align 2