1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
3 ; Make sure exception-handling PIC code can be linked correctly. An alternative
4 ; to the sequence described below would have .gcc_except_table itself writable
5 ; and not use the indirection, but this isn't what LLVM does right now.
7 ; There should be a read-only .gcc_except_table section...
8 ; CHECK: .section .gcc_except_table,"a"
10 ; ... referring indirectly to stubs for its typeinfo ...
11 ; CHECK: // @TType Encoding = indirect pcrel sdata8
12 ; ... one of which is "int"'s typeinfo
14 ; CHECK-NEXT: .xword .L_ZTIi.DW.stub-.Ltmp9
16 ; .. and which is properly defined (in a writable section for the dynamic loader) later.
17 ; CHECK: .section .data.rel,"aw"
18 ; CHECK: .L_ZTIi.DW.stub:
19 ; CHECK-NEXT: .xword _ZTIi
21 @_ZTIi = external constant i8*
23 define i32 @_Z3barv() {
25 invoke void @_Z3foov()
26 to label %return unwind label %lpad
28 lpad: ; preds = %entry
29 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
30 catch i8* bitcast (i8** @_ZTIi to i8*)
31 %1 = extractvalue { i8*, i32 } %0, 1
32 %2 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
33 %matches = icmp eq i32 %1, %2
34 br i1 %matches, label %catch, label %eh.resume
36 catch: ; preds = %lpad
37 %3 = extractvalue { i8*, i32 } %0, 0
38 %4 = tail call i8* @__cxa_begin_catch(i8* %3) nounwind
39 %5 = bitcast i8* %4 to i32*
40 %exn.scalar = load i32* %5, align 4
41 tail call void @__cxa_end_catch() nounwind
44 return: ; preds = %entry, %catch
45 %retval.0 = phi i32 [ %exn.scalar, %catch ], [ 42, %entry ]
48 eh.resume: ; preds = %lpad
49 resume { i8*, i32 } %0
52 declare void @_Z3foov()
54 declare i32 @__gxx_personality_v0(...)
56 declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
58 declare i8* @__cxa_begin_catch(i8*)
60 declare void @__cxa_end_catch()