1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
2 ; RUN: llc -mtriple=aarch64_be-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
4 ; Make sure exception-handling PIC code can be linked correctly. An alternative
5 ; to the sequence described below would have .gcc_except_table itself writable
6 ; and not use the indirection, but this isn't what LLVM does right now.
8 ; There should be a read-only .gcc_except_table section...
9 ; CHECK: .section .gcc_except_table,"a"
11 ; ... referring indirectly to stubs for its typeinfo ...
12 ; CHECK: // @TType Encoding = indirect pcrel sdata8
13 ; ... one of which is "int"'s typeinfo
14 ; CHECK: [[TYPEINFO_LBL:.Ltmp[0-9]+]]: // TypeInfo 1
15 ; CHECK-NEXT: .xword .L_ZTIi.DW.stub-[[TYPEINFO_LBL]]
17 ; .. and which is properly defined (in a writable section for the dynamic loader) later.
19 ; CHECK: .L_ZTIi.DW.stub:
20 ; CHECK-NEXT: .xword _ZTIi
22 @_ZTIi = external constant i8*
24 define i32 @_Z3barv() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
26 invoke void @_Z3foov()
27 to label %return unwind label %lpad
29 lpad: ; preds = %entry
30 %0 = landingpad { i8*, i32 }
31 catch i8* bitcast (i8** @_ZTIi to i8*)
32 %1 = extractvalue { i8*, i32 } %0, 1
33 %2 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
34 %matches = icmp eq i32 %1, %2
35 br i1 %matches, label %catch, label %eh.resume
37 catch: ; preds = %lpad
38 %3 = extractvalue { i8*, i32 } %0, 0
39 %4 = tail call i8* @__cxa_begin_catch(i8* %3) nounwind
40 %5 = bitcast i8* %4 to i32*
41 %exn.scalar = load i32, i32* %5, align 4
42 tail call void @__cxa_end_catch() nounwind
45 return: ; preds = %entry, %catch
46 %retval.0 = phi i32 [ %exn.scalar, %catch ], [ 42, %entry ]
49 eh.resume: ; preds = %lpad
50 resume { i8*, i32 } %0
53 declare void @_Z3foov()
55 declare i32 @__gxx_personality_v0(...)
57 declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
59 declare i8* @__cxa_begin_catch(i8*)
61 declare void @__cxa_end_catch()