1 ; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s 2 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. 6 7 ; There should be a read-only .gcc_except_table section... 8 ; CHECK: .section .gcc_except_table,"a" 9 10 ; ... referring indirectly to stubs for its typeinfo ... 11 ; CHECK: // @TType Encoding = indirect pcrel sdata8 12 ; ... one of which is "int"'s typeinfo 13 ; CHECK: .Ltmp9: 14 ; CHECK-NEXT: .xword .L_ZTIi.DW.stub-.Ltmp9 15 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 20 21 @_ZTIi = external constant i8* 22 23 define i32 @_Z3barv() { 24 entry: 25 invoke void @_Z3foov() 26 to label %return unwind label %lpad 27 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 35 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 42 br label %return 43 44 return: ; preds = %entry, %catch 45 %retval.0 = phi i32 [ %exn.scalar, %catch ], [ 42, %entry ] 46 ret i32 %retval.0 47 48 eh.resume: ; preds = %lpad 49 resume { i8*, i32 } %0 50 } 51 52 declare void @_Z3foov() 53 54 declare i32 @__gxx_personality_v0(...) 55 56 declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone 57 58 declare i8* @__cxa_begin_catch(i8*) 59 60 declare void @__cxa_end_catch() 61
