1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 | FileCheck %s
4 ; Check if the SLPVectorizer does not crash when handling
5 ; unreachable blocks with unscheduleable instructions.
7 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
8 target triple = "x86_64-apple-macosx10.9.0"
10 define void @foo(i32* nocapture %x) #0 {
13 ; CHECK-NEXT: br label [[BB2:%.*]]
15 ; CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i32, i32* [[X:%.*]], i64 4
16 ; CHECK-NEXT: [[T4:%.*]] = load i32, i32* [[T3]], align 4
17 ; CHECK-NEXT: [[T5:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 5
18 ; CHECK-NEXT: [[T6:%.*]] = load i32, i32* [[T5]], align 4
19 ; CHECK-NEXT: [[BAD:%.*]] = fadd float [[BAD]], 0.000000e+00
20 ; CHECK-NEXT: [[T7:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 6
21 ; CHECK-NEXT: [[T8:%.*]] = load i32, i32* [[T7]], align 4
22 ; CHECK-NEXT: [[T9:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 7
23 ; CHECK-NEXT: [[T10:%.*]] = load i32, i32* [[T9]], align 4
24 ; CHECK-NEXT: br label [[BB2]]
26 ; CHECK-NEXT: [[T1_0:%.*]] = phi i32 [ [[T4]], [[BB1:%.*]] ], [ 2, [[ENTRY:%.*]] ]
27 ; CHECK-NEXT: [[T2_0:%.*]] = phi i32 [ [[T6]], [[BB1]] ], [ 2, [[ENTRY]] ]
28 ; CHECK-NEXT: [[T3_0:%.*]] = phi i32 [ [[T8]], [[BB1]] ], [ 2, [[ENTRY]] ]
29 ; CHECK-NEXT: [[T4_0:%.*]] = phi i32 [ [[T10]], [[BB1]] ], [ 2, [[ENTRY]] ]
30 ; CHECK-NEXT: store i32 [[T1_0]], i32* [[X]], align 4
31 ; CHECK-NEXT: [[T12:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 1
32 ; CHECK-NEXT: store i32 [[T2_0]], i32* [[T12]], align 4
33 ; CHECK-NEXT: [[T13:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 2
34 ; CHECK-NEXT: store i32 [[T3_0]], i32* [[T13]], align 4
35 ; CHECK-NEXT: [[T14:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 3
36 ; CHECK-NEXT: store i32 [[T4_0]], i32* [[T14]], align 4
37 ; CHECK-NEXT: ret void
42 bb1: ; an unreachable block
43 %t3 = getelementptr inbounds i32, i32* %x, i64 4
44 %t4 = load i32, i32* %t3, align 4
45 %t5 = getelementptr inbounds i32, i32* %x, i64 5
46 %t6 = load i32, i32* %t5, align 4
47 %bad = fadd float %bad, 0.000000e+00 ; <- an instruction with self dependency,
48 ; but legal in unreachable code
49 %t7 = getelementptr inbounds i32, i32* %x, i64 6
50 %t8 = load i32, i32* %t7, align 4
51 %t9 = getelementptr inbounds i32, i32* %x, i64 7
52 %t10 = load i32, i32* %t9, align 4
56 %t1.0 = phi i32 [ %t4, %bb1 ], [ 2, %entry ]
57 %t2.0 = phi i32 [ %t6, %bb1 ], [ 2, %entry ]
58 %t3.0 = phi i32 [ %t8, %bb1 ], [ 2, %entry ]
59 %t4.0 = phi i32 [ %t10, %bb1 ], [ 2, %entry ]
60 store i32 %t1.0, i32* %x, align 4
61 %t12 = getelementptr inbounds i32, i32* %x, i64 1
62 store i32 %t2.0, i32* %t12, align 4
63 %t13 = getelementptr inbounds i32, i32* %x, i64 2
64 store i32 %t3.0, i32* %t13, align 4
65 %t14 = getelementptr inbounds i32, i32* %x, i64 3
66 store i32 %t4.0, i32* %t14, align 4