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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: .data
19; CHECK: .L_ZTIi.DW.stub:
20; CHECK-NEXT: .xword _ZTIi
21
22@_ZTIi = external constant i8*
23
24define i32 @_Z3barv() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
25entry:
26  invoke void @_Z3foov()
27          to label %return unwind label %lpad
28
29lpad:                                             ; 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
36
37catch:                                            ; 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
45return:                                           ; preds = %entry, %catch
46  %retval.0 = phi i32 [ %exn.scalar, %catch ], [ 42, %entry ]
47  ret i32 %retval.0
48
49eh.resume:                                        ; preds = %lpad
50  resume { i8*, i32 } %0
51}
52
53declare void @_Z3foov()
54
55declare i32 @__gxx_personality_v0(...)
56
57declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
58
59declare i8* @__cxa_begin_catch(i8*)
60
61declare void @__cxa_end_catch()
62