forked from OSchip/llvm-project
176 lines
6.6 KiB
LLVM
176 lines
6.6 KiB
LLVM
; RUN: llc -filetype=obj -O0 < %s
|
|
; Test that we handle DBG_VALUEs in a register without crashing.
|
|
;
|
|
; Generated from clang with -fsanitize=address:
|
|
; struct A {
|
|
; A();
|
|
; A(const A&);
|
|
; };
|
|
;
|
|
; A func(int) {
|
|
; A a;
|
|
; return a;
|
|
; }
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
%struct.A = type { i8 }
|
|
|
|
@__asan_mapping_offset = linkonce_odr constant i64 2147450880
|
|
@__asan_mapping_scale = linkonce_odr constant i64 3
|
|
@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 1, void ()* @asan.module_ctor, i8* null }]
|
|
@___asan_gen_ = private unnamed_addr constant [16 x i8] c"1 32 4 5 .addr \00", align 1
|
|
|
|
; Function Attrs: sanitize_address uwtable
|
|
define void @_Z4funci(%struct.A* noalias sret %agg.result, i32) #0 "stack-protector-buffer-size"="1" !dbg !4 {
|
|
entry:
|
|
%MyAlloca = alloca [96 x i8], align 32
|
|
%1 = ptrtoint [96 x i8]* %MyAlloca to i64
|
|
%2 = add i64 %1, 32
|
|
%3 = inttoptr i64 %2 to i32*
|
|
%4 = inttoptr i64 %1 to i64*
|
|
store i64 1102416563, i64* %4
|
|
%5 = add i64 %1, 8
|
|
%6 = inttoptr i64 %5 to i64*
|
|
store i64 ptrtoint ([16 x i8]* @___asan_gen_ to i64), i64* %6
|
|
%7 = add i64 %1, 16
|
|
%8 = inttoptr i64 %7 to i64*
|
|
store i64 ptrtoint (void (%struct.A*, i32)* @_Z4funci to i64), i64* %8
|
|
%9 = lshr i64 %1, 3
|
|
%10 = add i64 %9, 2147450880
|
|
%11 = inttoptr i64 %10 to i32*
|
|
store i32 -235802127, i32* %11
|
|
%12 = add i64 %10, 4
|
|
%13 = inttoptr i64 %12 to i32*
|
|
store i32 -185273340, i32* %13
|
|
%14 = add i64 %10, 8
|
|
%15 = inttoptr i64 %14 to i32*
|
|
store i32 -202116109, i32* %15
|
|
%16 = ptrtoint i32* %3 to i64
|
|
%17 = lshr i64 %16, 3
|
|
%18 = add i64 %17, 2147450880
|
|
%19 = inttoptr i64 %18 to i8*
|
|
%20 = load i8, i8* %19
|
|
%21 = icmp ne i8 %20, 0
|
|
call void @llvm.dbg.declare(metadata i32* %3, metadata !23, metadata !28), !dbg !DILocation(scope: !4)
|
|
br i1 %21, label %22, label %28
|
|
|
|
; <label>:22 ; preds = %entry
|
|
%23 = and i64 %16, 7
|
|
%24 = add i64 %23, 3
|
|
%25 = trunc i64 %24 to i8
|
|
%26 = icmp sge i8 %25, %20
|
|
br i1 %26, label %27, label %28
|
|
|
|
; <label>:27 ; preds = %22
|
|
call void @__asan_report_store4(i64 %16)
|
|
call void asm sideeffect "", ""()
|
|
unreachable
|
|
|
|
; <label>:28 ; preds = %22, %entry
|
|
store i32 %0, i32* %3, align 4
|
|
call void @llvm.dbg.declare(metadata %struct.A* %agg.result, metadata !24, metadata !DIExpression()), !dbg !25
|
|
call void @_ZN1AC1Ev(%struct.A* %agg.result), !dbg !25
|
|
store i64 1172321806, i64* %4, !dbg !26
|
|
%29 = inttoptr i64 %10 to i32*, !dbg !26
|
|
store i32 0, i32* %29, !dbg !26
|
|
%30 = add i64 %10, 4, !dbg !26
|
|
%31 = inttoptr i64 %30 to i32*, !dbg !26
|
|
store i32 0, i32* %31, !dbg !26
|
|
%32 = add i64 %10, 8, !dbg !26
|
|
%33 = inttoptr i64 %32 to i32*, !dbg !26
|
|
store i32 0, i32* %33, !dbg !26
|
|
ret void, !dbg !26
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
declare void @_ZN1AC1Ev(%struct.A*) #2
|
|
|
|
define internal void @asan.module_ctor() "stack-protector-buffer-size"="1" {
|
|
call void @__asan_init_v3()
|
|
%1 = load volatile i64, i64* @__asan_mapping_offset
|
|
%2 = load volatile i64, i64* @__asan_mapping_scale
|
|
ret void
|
|
}
|
|
|
|
declare void @__asan_init_v3()
|
|
|
|
declare void @__asan_report_load1(i64)
|
|
|
|
declare void @__asan_report_load2(i64)
|
|
|
|
declare void @__asan_report_load4(i64)
|
|
|
|
declare void @__asan_report_load8(i64)
|
|
|
|
declare void @__asan_report_load16(i64)
|
|
|
|
declare void @__asan_report_store1(i64)
|
|
|
|
declare void @__asan_report_store2(i64)
|
|
|
|
declare void @__asan_report_store4(i64)
|
|
|
|
declare void @__asan_report_store8(i64)
|
|
|
|
declare void @__asan_report_store16(i64)
|
|
|
|
declare void @__asan_report_load_n(i64, i64)
|
|
|
|
declare void @__asan_report_store_n(i64, i64)
|
|
|
|
declare void @__asan_handle_no_return()
|
|
|
|
declare i64 @__asan_stack_malloc(i64, i64)
|
|
|
|
declare void @__asan_stack_free(i64, i64, i64)
|
|
|
|
declare void @__asan_poison_stack_memory(i64, i64)
|
|
|
|
declare void @__asan_unpoison_stack_memory(i64, i64)
|
|
|
|
declare void @__asan_before_dynamic_init(i64)
|
|
|
|
declare void @__asan_after_dynamic_init()
|
|
|
|
declare void @__asan_register_globals(i64, i64)
|
|
|
|
declare void @__asan_unregister_globals(i64, i64)
|
|
|
|
attributes #0 = { sanitize_address uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "ssp-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "ssp-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!22, !27}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
|
|
!1 = !DIFile(filename: "crash.cpp", directory: "/tmp")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "func", linkageName: "_Z4funci", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2)
|
|
!5 = !DIFile(filename: "crash.cpp", directory: "/tmp")
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{!8, !21}
|
|
!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 8, align: 8, file: !1, elements: !9)
|
|
!9 = !{!10, !15}
|
|
!10 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !8, type: !11)
|
|
!11 = !DISubroutineType(types: !12)
|
|
!12 = !{null, !13}
|
|
!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8)
|
|
!15 = !DISubprogram(name: "A", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !8, type: !16)
|
|
!16 = !DISubroutineType(types: !17)
|
|
!17 = !{null, !13, !18}
|
|
!18 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !19)
|
|
!19 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8)
|
|
!21 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!22 = !{i32 2, !"Dwarf Version", i32 3}
|
|
!23 = !DILocalVariable(name: "", line: 6, arg: 1, scope: !4, file: !5, type: !21)
|
|
!24 = !DILocalVariable(name: "a", line: 7, scope: !4, file: !5, type: !8)
|
|
!25 = !DILocation(line: 7, scope: !4)
|
|
!26 = !DILocation(line: 8, scope: !4)
|
|
!27 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!28 = !DIExpression(DW_OP_deref)
|