1 ; RUN: llc -march=hexagon < %s | FileCheck %s
4 ; Check for a reasonable output. This testcase used to crash.
7 target triple = "hexagon"
9 define void @fred() local_unnamed_addr #0 {
11 %0 = load i64, ptr undef, align 8
12 %shr.i465 = lshr i64 %0, 48
13 %trunc = trunc i64 %shr.i465 to i15
14 switch i15 %trunc, label %if.end26 [
15 i15 -1, label %if.then14
16 i15 0, label %if.then21
19 if.then14: ; preds = %entry
22 if.then21: ; preds = %entry
25 if.end26: ; preds = %entry
28 if.end36: ; preds = %if.end26
29 %or.i335 = or i64 undef, undef
30 %shl2.i322 = or i64 undef, -9223372036854775808
31 br i1 undef, label %if.then44, label %lor.rhs.i
33 lor.rhs.i: ; preds = %if.end36
36 le128.exit: ; preds = %lor.rhs.i
37 br i1 undef, label %if.then44, label %while.cond.preheader
39 if.then44: ; preds = %le128.exit, %if.end36
40 %conv42544 = phi i64 [ 0, %le128.exit ], [ 1, %if.end36 ]
41 br label %while.cond.preheader
43 while.cond.preheader: ; preds = %if.then44, %le128.exit
44 %aSig0.3.ph = phi i64 [ undef, %if.then44 ], [ %or.i335, %le128.exit ]
45 %q.0.ph = phi i64 [ %conv42544, %if.then44 ], [ 0, %le128.exit ]
46 br i1 undef, label %while.body.lr.ph, label %while.end
48 while.body.lr.ph: ; preds = %while.cond.preheader
49 %shr.i263 = lshr i64 %shl2.i322, 32
52 while.body: ; preds = %exit312, %while.body.lr.ph
53 %aSig0.3554 = phi i64 [ %aSig0.3.ph, %while.body.lr.ph ], [ %sub3.i205, %exit312 ]
54 br label %while.body.i297
56 while.body.i297: ; preds = %while.body.i297, %while.body
57 %z.045.i287 = phi i64 [ %sub.i290, %while.body.i297 ], [ undef, %while.body ]
58 %sub.i290 = add i64 %z.045.i287, -4294967296
59 %cmp3.i296 = icmp slt i64 undef, 0
60 br i1 %cmp3.i296, label %while.body.i297, label %while.end.i305.loopexit
62 while.end.i305.loopexit: ; preds = %while.body.i297
63 %or14.i309 = or i64 0, %sub.i290
66 exit312: ; preds = %while.end.i305.loopexit
67 %cmp50 = icmp ugt i64 %or14.i309, 4
68 %cond = select i1 %cmp50, i64 undef, i64 0
69 %shr3.i.i221 = lshr i64 %cond, 32
70 %mul15.i11.i243 = mul nuw i64 %shr3.i.i221, %shr.i263
71 %add20.i18.i250 = add i64 0, %mul15.i11.i243
72 %add26.i23.i255 = add i64 %add20.i18.i250, 0
73 %add3.i.i261 = add i64 %add26.i23.i255, 0
74 %shl4.i215 = shl i64 %add3.i.i261, 61
75 %or10.i = or i64 %shl4.i215, 0
76 %shl2.i207 = shl i64 %aSig0.3554, 61
77 %or.i209 = or i64 %shl2.i207, 0
78 %sub1.i202 = add i64 0, %or.i209
79 %sub3.i205 = sub i64 %sub1.i202, %or10.i
80 %cmp47 = icmp sgt i32 undef, 61
81 br i1 %cmp47, label %while.body, label %while.end.loopexit
83 while.end.loopexit: ; preds = %exit312
86 while.end: ; preds = %while.end.loopexit, %while.cond.preheader
87 %aSig0.3.lcssa = phi i64 [ %aSig0.3.ph, %while.cond.preheader ], [ %sub3.i205, %while.end.loopexit ]
88 %q.0.lcssa = phi i64 [ %q.0.ph, %while.cond.preheader ], [ %cond, %while.end.loopexit ]
89 br i1 undef, label %if.then56, label %if.else71
91 if.then56: ; preds = %while.end
94 if.else71: ; preds = %while.end
95 %shr8.i155 = lshr i64 %aSig0.3.lcssa, 12
98 do.body: ; preds = %do.body, %if.else71
99 %aSig0.5 = phi i64 [ %sub3.i151, %do.body ], [ %shr8.i155, %if.else71 ]
100 %q.1 = phi i64 [ %inc, %do.body ], [ %q.0.lcssa, %if.else71 ]
101 %inc = add i64 %q.1, 1
102 %sub1.i148 = sub i64 %aSig0.5, 0
103 %sub3.i151 = add i64 %sub1.i148, 0
104 %cmp73 = icmp sgt i64 %sub3.i151, -1
105 br i1 %cmp73, label %do.body, label %do.end
107 do.end: ; preds = %do.body
108 %and = and i64 %inc, 1
112 attributes #0 = { nounwind }