1 ; RUN: opt -alignment-from-assumptions -S < %s | FileCheck %s
2 ; RUN: opt -passes=alignment-from-assumptions -S < %s | FileCheck %s
3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4 target triple = "x86_64-unknown-linux-gnu"
6 %type1 = type { %type2 }
7 %type2 = type { [4 x i8] }
9 ; Function Attrs: nounwind
10 declare void @llvm.assume(i1) #0
12 ; Function Attrs: nounwind readnone
13 declare i32 @llvm.bswap.i32(i32) #1
15 ; Function Attrs: nounwind uwtable
16 define void @test1() unnamed_addr #2 align 2 {
21 br i1 undef, label %if.then, label %if.end
23 if.then: ; preds = %entry
26 if.end: ; preds = %entry
27 br i1 undef, label %return, label %if.end8
29 if.end8: ; preds = %if.end
30 br i1 undef, label %if.then13, label %if.end14
32 if.then13: ; preds = %if.end8
35 if.end14: ; preds = %if.end8
36 br i1 undef, label %cond.false.i129, label %cond.end.i136
38 cond.false.i129: ; preds = %if.end14
41 cond.end.i136: ; preds = %if.end14
42 br i1 undef, label %land.lhs.true.i, label %if.end.i145
44 land.lhs.true.i: ; preds = %cond.end.i136
45 br i1 undef, label %if.end.i145, label %if.then.i137
47 if.then.i137: ; preds = %land.lhs.true.i
48 br i1 undef, label %cond.false8.i, label %cond.end9.i
50 cond.false8.i: ; preds = %if.then.i137
53 cond.end9.i: ; preds = %if.then.i137
54 br i1 undef, label %if.then23, label %if.end24
56 if.end.i145: ; preds = %land.lhs.true.i, %cond.end.i136
59 if.then23: ; preds = %cond.end9.i
62 if.end24: ; preds = %cond.end9.i
63 br i1 undef, label %for.end, label %for.body.lr.ph
65 for.body.lr.ph: ; preds = %if.end24
68 for.end: ; preds = %if.end24
69 br i1 undef, label %if.end123, label %if.then121
71 if.then121: ; preds = %for.end
74 if.end123: ; preds = %for.end
75 br i1 undef, label %if.end150, label %if.then126
77 if.then126: ; preds = %if.end123
78 %ptrint.i.i185 = ptrtoint %type1* undef to i64
79 %maskedptr.i.i186 = and i64 %ptrint.i.i185, 1
80 %maskcond.i.i187 = icmp eq i64 %maskedptr.i.i186, 0
81 tail call void @llvm.assume(i1 %maskcond.i.i187) #0
82 %ret.0..sroa_cast.i.i188 = bitcast %type1* undef to i32*
83 %ret.0.copyload.i.i189 = load i32, i32* %ret.0..sroa_cast.i.i188, align 2
85 ; CHECK: load {{.*}} align 2
87 %0 = tail call i32 @llvm.bswap.i32(i32 %ret.0.copyload.i.i189) #0
88 %conv131 = zext i32 %0 to i64
89 %add.ptr132 = getelementptr inbounds i8, i8* undef, i64 %conv131
90 %1 = bitcast i8* %add.ptr132 to %type1*
91 br i1 undef, label %if.end150, label %if.end.i173
93 if.end.i173: ; preds = %if.then126
94 br i1 undef, label %test1.exit, label %cond.false.i.i.i.i174
96 cond.false.i.i.i.i174: ; preds = %if.end.i173
99 test1.exit: ; preds = %if.end.i173
100 br i1 undef, label %test1a.exit, label %if.end.i124
102 if.end.i124: ; preds = %test1.exit
105 test1a.exit: ; preds = %test1.exit
106 br i1 undef, label %if.end150, label %for.body137.lr.ph
108 for.body137.lr.ph: ; preds = %test1a.exit
109 br label %for.body137
111 for.body137: ; preds = %test1b.exit, %for.body137.lr.ph
112 %ShndxTable.0309 = phi %type1* [ %1, %for.body137.lr.ph ], [ %incdec.ptr, %test1b.exit ]
113 %ret.0..sroa_cast.i.i106 = bitcast %type1* %ShndxTable.0309 to i32*
114 br i1 undef, label %for.body137.if.end146_crit_edge, label %if.then140
116 for.body137.if.end146_crit_edge: ; preds = %for.body137
117 %incdec.ptr = getelementptr inbounds %type1, %type1* %ShndxTable.0309, i64 1
118 br i1 undef, label %cond.false.i70, label %cond.end.i
120 if.then140: ; preds = %for.body137
121 %ret.0.copyload.i.i102 = load i32, i32* %ret.0..sroa_cast.i.i106, align 2
123 ; CHECK: load {{.*}} align 2
127 cond.false.i70: ; preds = %for.body137.if.end146_crit_edge
130 cond.end.i: ; preds = %for.body137.if.end146_crit_edge
131 br i1 undef, label %test1b.exit, label %cond.false.i.i
133 cond.false.i.i: ; preds = %cond.end.i
136 test1b.exit: ; preds = %cond.end.i
137 br i1 undef, label %if.end150, label %for.body137
139 if.end150: ; preds = %test1b.exit, %test1a.exit, %if.then126, %if.end123
140 br i1 undef, label %for.end176, label %for.body155.lr.ph
142 for.body155.lr.ph: ; preds = %if.end150
145 for.end176: ; preds = %if.end150
148 return: ; preds = %if.end
152 attributes #0 = { nounwind }
153 attributes #1 = { nounwind readnone }
154 attributes #2 = { nounwind uwtable }