1 ;RUN: opt -passes=newgvn -S < %s | FileCheck %s
3 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n8:16:32-S64"
4 target triple = "thumbv7--linux-gnueabi"
6 %struct.a = type { i16, i16, [1 x %union.a] }
7 %union.a = type { i32 }
9 @length = external global [0 x i32], align 4
11 ; Function Attrs: nounwind
12 define fastcc void @foo(ptr nocapture readonly %x) {
17 bb0: ; preds = %land.lhs.true, %entry
19 %x.tr = phi ptr [ %x, %entry ], [ null, %land.lhs.true ]
20 %0 = load i16, ptr %x.tr, align 4
21 ; CHECK: load i16, ptr
22 %conv = zext i16 %0 to i32
23 switch i32 %conv, label %if.end.50 [
24 i32 43, label %cleanup
25 i32 52, label %if.then.5
28 if.then.5: ; preds = %bb0
29 br i1 undef, label %land.lhs.true, label %if.then.26
31 land.lhs.true: ; preds = %if.then.5
32 br i1 undef, label %cleanup, label %bb0
34 if.then.26: ; preds = %if.then.5
35 %x.tr.lcssa163 = phi ptr [ %x.tr, %if.then.5 ]
36 br i1 undef, label %cond.end, label %cond.false
38 cond.false: ; preds = %if.then.26
41 %mode = getelementptr inbounds %struct.a, ptr %x.tr.lcssa163, i32 0, i32 1
42 %bf.load = load i16, ptr %mode, align 2
43 %bf.shl = shl i16 %bf.load, 8
46 cond.end: ; preds = %cond.false, %if.then.26
47 br i1 undef, label %if.then.44, label %cleanup
49 if.then.44: ; preds = %cond.end
52 if.end.50: ; preds = %bb0
54 %conv.lcssa = phi i32 [ %conv, %bb0 ]
55 %arrayidx52 = getelementptr inbounds [0 x i32], ptr @length, i32 0, i32 %conv.lcssa
56 %1 = load i32, ptr %arrayidx52, align 4
57 br i1 undef, label %for.body.57, label %cleanup
59 for.body.57: ; preds = %if.end.50
60 %i.2157 = add nsw i32 %1, -1
63 cleanup: ; preds = %if.end.50, %cond.end, %land.lhs.true, %bb0
67 @yy_c_buf_p = external unnamed_addr global ptr, align 4
68 @dfg_text = external global ptr, align 4
70 define void @dfg_lex() {
73 br label %while.bodythread-pre-split
75 while.bodythread-pre-split: ; preds = %while.end, %while.end, %entry
76 br i1 undef, label %if.then.14, label %if.end.15
78 if.then.14: ; preds = %while.end, %while.bodythread-pre-split
79 %v1 = load i32, ptr @dfg_text, align 4
80 %sub.ptr.sub = sub i32 undef, %v1
83 if.end.15: ; preds = %if.then.14, %while.bodythread-pre-split
84 %v2 = load ptr, ptr @yy_c_buf_p, align 4
85 br label %while.cond.16
87 while.cond.16: ; preds = %while.cond.16, %if.end.15
88 br i1 undef, label %while.cond.16, label %while.end
90 while.end: ; preds = %while.cond.16
91 %add.ptr = getelementptr inbounds i8, ptr %v2, i32 undef
92 store ptr %add.ptr, ptr @dfg_text, align 4
93 %sub.ptr.rhs.cast25 = ptrtoint ptr %add.ptr to i32
94 %sub.ptr.sub26 = sub i32 0, %sub.ptr.rhs.cast25
95 switch i32 undef, label %sw.default [
96 i32 65, label %while.bodythread-pre-split
98 i32 57, label %while.bodythread-pre-split
99 i32 60, label %if.then.14
102 sw.default: ; preds = %while.end
105 return: ; preds = %while.end