| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | ; Check that we don't crash when processing declaration with type metadata |
| 2 | ; RUN: opt -S -wholeprogramdevirt %s |
| 3 | |
| 4 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 5 | target triple = "x86_64-none-linux-gnu" |
| 6 | |
| 7 | declare i1 @llvm.type.test(i8*, metadata) |
| 8 | declare void @llvm.assume(i1) |
| 9 | |
| 10 | @_ZTVN3foo3barE = external dso_local unnamed_addr constant { [8 x i8*] }, align 8, !type !0 |
| 11 | |
| 12 | define i1 @call1(i8* %obj) { |
| 13 | %vtableptr = bitcast i8* %obj to [3 x i8*]** |
| 14 | %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr |
| 15 | %vtablei8 = bitcast [3 x i8*]* %vtable to i8* |
| 16 | %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") |
| 17 | call void @llvm.assume(i1 %p) |
| 18 | %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 |
| 19 | %fptr = load i8*, i8** %fptrptr |
| 20 | %fptr_casted = bitcast i8* %fptr to i1 (i8*)* |
| 21 | %result = call i1 %fptr_casted(i8* %obj) |
| 22 | ret i1 %result |
| 23 | } |
| 24 | |
| 25 | !0 = !{i64 16, !"_ZTSN3foo3barE"} |