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 ; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
4 ; RUN: llc -mtriple=arm64_be-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
6 ; Make sure exception-handling PIC code can be linked correctly. An alternative
7 ; to the sequence described below would have .gcc_except_table itself writable
8 ; and not use the indirection, but this isn't what LLVM does right now.
10 ; There should be a read-only .gcc_except_table section...
11 ; CHECK: .section .gcc_except_table,"a"
13 ; ... referring indirectly to stubs for its typeinfo ...
14 ; CHECK: // @TType Encoding = indirect pcrel sdata8
15 ; ... one of which is "int"'s typeinfo
16 ; CHECK: [[TYPEINFO_LBL:.Ltmp[0-9]+]]: // TypeInfo 1
17 ; CHECK-NEXT: .xword .L_ZTIi.DW.stub-[[TYPEINFO_LBL]]
19 ; .. and which is properly defined (in a writable section for the dynamic loader) later.
20 ; CHECK: .section .data.rel,"aw"
21 ; CHECK: .L_ZTIi.DW.stub:
22 ; CHECK-NEXT: .xword _ZTIi
24 @_ZTIi = external constant i8*
26 define i32 @_Z3barv() {
28 invoke void @_Z3foov()
29 to label %return unwind label %lpad
31 lpad: ; preds = %entry
32 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
33 catch i8* bitcast (i8** @_ZTIi to i8*)
34 %1 = extractvalue { i8*, i32 } %0, 1
35 %2 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
36 %matches = icmp eq i32 %1, %2
37 br i1 %matches, label %catch, label %eh.resume
39 catch: ; preds = %lpad
40 %3 = extractvalue { i8*, i32 } %0, 0
41 %4 = tail call i8* @__cxa_begin_catch(i8* %3) nounwind
42 %5 = bitcast i8* %4 to i32*
43 %exn.scalar = load i32* %5, align 4
44 tail call void @__cxa_end_catch() nounwind
47 return: ; preds = %entry, %catch
48 %retval.0 = phi i32 [ %exn.scalar, %catch ], [ 42, %entry ]
51 eh.resume: ; preds = %lpad
52 resume { i8*, i32 } %0
55 declare void @_Z3foov()
57 declare i32 @__gxx_personality_v0(...)
59 declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
61 declare i8* @__cxa_begin_catch(i8*)
63 declare void @__cxa_end_catch()