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 3 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. 7 8 ; There should be a read-only .gcc_except_table section... 9 ; CHECK: .section .gcc_except_table,"a" 10 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]] 16 17 ; .. and which is properly defined (in a writable section for the dynamic loader) later. 18 ; CHECK: .section .data.rel,"aw" 19 ; CHECK: .L_ZTIi.DW.stub: 20 ; CHECK-NEXT: .xword _ZTIi 21 22 @_ZTIi = external constant i8* 23 24 define i32 @_Z3barv() { 25 entry: 26 invoke void @_Z3foov() 27 to label %return unwind label %lpad 28 29 lpad: ; preds = %entry 30 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) 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 36 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 43 br label %return 44 45 return: ; preds = %entry, %catch 46 %retval.0 = phi i32 [ %exn.scalar, %catch ], [ 42, %entry ] 47 ret i32 %retval.0 48 49 eh.resume: ; preds = %lpad 50 resume { i8*, i32 } %0 51 } 52 53 declare void @_Z3foov() 54 55 declare i32 @__gxx_personality_v0(...) 56 57 declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone 58 59 declare i8* @__cxa_begin_catch(i8*) 60 61 declare void @__cxa_end_catch() 62
