[llvm] r296847 - LiveDebugValues: Assume calls never clobber SP.
David Blaikie via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 6 14:33:08 PST 2017
On Thu, Mar 2, 2017 at 5:20 PM Adrian Prantl via llvm-commits <
llvm-commits at lists.llvm.org> wrote:
> Author: adrian
> Date: Thu Mar 2 19:08:25 2017
> New Revision: 296847
>
> URL: http://llvm.org/viewvc/llvm-project?rev=296847&view=rev
> Log:
> LiveDebugValues: Assume calls never clobber SP.
>
> A call should never modify the stack pointer, but some backends are
> not so sure about this and never list SP in the regmask.
Should the backends be fixed instead?
> For the
> purposes of LiveDebugValues we assume a call never clobbers SP. We
> already have a similar workaround in DbgValueHistoryCalculator (which
> we hopefully can retire soon).
>
> This fixes the availabilty of local ASANified variables on AArch64.
>
> rdar://problem/27757381
>
> Added:
> llvm/trunk/test/DebugInfo/AArch64/asan-stack-vars.ll
> Modified:
> llvm/trunk/lib/CodeGen/LiveDebugValues.cpp
>
> Modified: llvm/trunk/lib/CodeGen/LiveDebugValues.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveDebugValues.cpp?rev=296847&r1=296846&r2=296847&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/LiveDebugValues.cpp (original)
> +++ llvm/trunk/lib/CodeGen/LiveDebugValues.cpp Thu Mar 2 19:08:25 2017
> @@ -373,8 +373,12 @@ void LiveDebugValues::transferRegisterDe
> unsigned SP = TLI->getStackPointerRegisterToSaveRestore();
> SparseBitVector<> KillSet;
> for (const MachineOperand &MO : MI.operands()) {
> + // Determine whether the operand is a register def. Assume that call
> + // instructions never clobber SP, because some backends (e.g.,
> AArch64)
> + // never list SP in the regmask.
> if (MO.isReg() && MO.isDef() && MO.getReg() &&
> - TRI->isPhysicalRegister(MO.getReg())) {
> + TRI->isPhysicalRegister(MO.getReg()) &&
> + !(MI.isCall() && MO.getReg() == SP)) {
> // Remove ranges of all aliased registers.
> for (MCRegAliasIterator RAI(MO.getReg(), TRI, true); RAI.isValid();
> ++RAI)
> for (unsigned ID : OpenRanges.getVarLocs())
>
> Added: llvm/trunk/test/DebugInfo/AArch64/asan-stack-vars.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/AArch64/asan-stack-vars.ll?rev=296847&view=auto
>
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/AArch64/asan-stack-vars.ll (added)
> +++ llvm/trunk/test/DebugInfo/AArch64/asan-stack-vars.ll Thu Mar 2
> 19:08:25 2017
> @@ -0,0 +1,326 @@
> +; RUN: llc -O0 -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
> +;
> +; Derived from (clang -O0 -g -fsanitize=address -fobjc-arc)
> +; @protocol NSObject
> +; @end
> +; @interface NSObject<NSObject>{}
> +; + (instancetype)alloc;
> +; @end
> +; struct CGSize {
> +; double width;
> +; double height;
> +; };
> +; typedef struct CGSize CGSize;
> +; @interface Object : NSObject
> +; - (instancetype)initWithSize:(CGSize)size;
> +; - (id)aMessage;
> +; @end
> +; @implementation MyObject
> +; + (id)doWithSize:(CGSize)imageSize andObject:(id)object {
> +; return [object aMessage];
> +; }
> +; @end
> +;
> +; CHECK: .debug_info contents:
> +; CHECK: DW_TAG_subprogram
> +; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
> +; CHECK-NEXT: DW_AT_high_pc [DW_FORM_addr] ([[FN_END:.*]])
> +; CHECK: "_cmd"
> +; CHECK: DW_TAG_formal_parameter
> +; CHECK-NEXT: DW_AT_location {{.*}} ([[OFS:.*]])
> +; CHECK-NEXT: DW_AT_name {{.*}}"imageSize"
> +;
> +; CHECK: .debug_loc contents:
> +; CHECK: [[OFS]]: Beginning address offset: 0x0000000000000000
> +; CHECK_NOT: 0x{{.*}}: Beginning
> +; CHECK: Ending address offset: [[FN_END]]
> +
> +; ModuleID = 'm.m'
> +source_filename = "m.m"
> +target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
> +target triple = "arm64-apple-ios"
> +
> +%0 = type opaque
> +%struct._class_t = type { %struct._class_t*, %struct._class_t*,
> %struct._objc_cache*, i8* (i8*, i8*)**, %struct._class_ro_t* }
> +%struct._objc_cache = type opaque
> +%struct._class_ro_t = type { i32, i32, i32, i8*, i8*,
> %struct.__method_list_t*, %struct._objc_protocol_list*,
> %struct._ivar_list_t*, i8*, %struct._prop_list_t* }
> +%struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] }
> +%struct._objc_method = type { i8*, i8*, i8* }
> +%struct._objc_protocol_list = type { i64, [0 x %struct._protocol_t*] }
> +%struct._protocol_t = type { i8*, i8*, %struct._objc_protocol_list*,
> %struct.__method_list_t*, %struct.__method_list_t*,
> %struct.__method_list_t*, %struct.__method_list_t*, %struct._prop_list_t*,
> i32, i32, i8**, i8*, %struct._prop_list_t* }
> +%struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] }
> +%struct._ivar_t = type { i32*, i8*, i8*, i32, i32 }
> +%struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] }
> +%struct._prop_t = type { i8*, i8* }
> +%struct.CGSize = type { double, double }
> +
> +@"OBJC_CLASS_$_Object" = external global %struct._class_t
> +@"OBJC_CLASSLIST_REFERENCES_$_" = private global %struct._class_t*
> @"OBJC_CLASS_$_Object", section "__DATA, __objc_classrefs, regular,
> no_dead_strip", align 8
> + at OBJC_METH_VAR_NAME_ = private unnamed_addr constant [6 x i8]
> c"alloc\00", section "__TEXT,__objc_methname,cstring_literals", align 1
> + at OBJC_SELECTOR_REFERENCES_ = private externally_initialized global i8*
> getelementptr inbounds ([6 x i8], [6 x i8]* @OBJC_METH_VAR_NAME_, i32 0,
> i32 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip",
> align 8
> + at OBJC_METH_VAR_NAME_.1 = private unnamed_addr constant [14 x i8]
> c"initWithSize:\00", section "__TEXT,__objc_methname,cstring_literals",
> align 1
> + at OBJC_SELECTOR_REFERENCES_.2 = private externally_initialized global i8*
> getelementptr inbounds ([14 x i8], [14 x i8]* @OBJC_METH_VAR_NAME_.1, i32
> 0, i32 0), section "__DATA, __objc_selrefs, literal_pointers,
> no_dead_strip", align 8
> + at OBJC_METH_VAR_NAME_.3 = private unnamed_addr constant [9 x i8]
> c"aMessage\00", section "__TEXT,__objc_methname,cstring_literals", align 1
> + at OBJC_SELECTOR_REFERENCES_.4 = private externally_initialized global i8*
> getelementptr inbounds ([9 x i8], [9 x i8]* @OBJC_METH_VAR_NAME_.3, i32 0,
> i32 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip",
> align 8
> + at _objc_empty_cache = external global %struct._objc_cache
> +@"OBJC_CLASS_$_MyObject" = global %struct._class_t { %struct._class_t*
> @"OBJC_METACLASS_$_MyObject", %struct._class_t* null, %struct._objc_cache*
> @_objc_empty_cache, i8* (i8*, i8*)** null, %struct._class_ro_t*
> @"\01l_OBJC_CLASS_RO_$_MyObject" }, section "__DATA, __objc_data", align 8
> +@"OBJC_METACLASS_$_MyObject" = global %struct._class_t {
> %struct._class_t* @"OBJC_METACLASS_$_MyObject", %struct._class_t*
> @"OBJC_CLASS_$_MyObject", %struct._objc_cache* @_objc_empty_cache, i8*
> (i8*, i8*)** null, %struct._class_ro_t*
> @"\01l_OBJC_METACLASS_RO_$_MyObject" }, section "__DATA, __objc_data",
> align 8
> + at OBJC_CLASS_NAME_ = private unnamed_addr constant [9 x i8]
> c"MyObject\00", section "__TEXT,__objc_classname,cstring_literals", align 1
> + at OBJC_METH_VAR_NAME_.5 = private unnamed_addr constant [12 x i8]
> c"doWithSize:\00", section "__TEXT,__objc_methname,cstring_literals", align
> 1
> + at OBJC_METH_VAR_TYPE_ = private unnamed_addr constant [21 x i8] c"@32 at 0:8{CGSize=dd}16\00",
> section "__TEXT,__objc_methtype,cstring_literals", align 1
> +@"\01l_OBJC_$_CLASS_METHODS_MyObject" = private global { i32, i32, [1 x
> %struct._objc_method] } { i32 24, i32 1, [1 x %struct._objc_method]
> [%struct._objc_method { i8* getelementptr inbounds ([12 x i8], [12 x i8]*
> @OBJC_METH_VAR_NAME_.5, i32 0, i32 0), i8* getelementptr inbounds ([21 x
> i8], [21 x i8]* @OBJC_METH_VAR_TYPE_, i32 0, i32 0), i8* bitcast (i8* (i8*,
> i8*, [2 x double])* @"\01+[MyObject doWithSize:]" to i8*) }] }, section
> "__DATA, __objc_const", align 8
> +@"\01l_OBJC_METACLASS_RO_$_MyObject" = private global %struct._class_ro_t
> { i32 131, i32 40, i32 40, i8* null, i8* getelementptr inbounds ([9 x i8],
> [9 x i8]* @OBJC_CLASS_NAME_, i32 0, i32 0), %struct.__method_list_t*
> bitcast ({ i32, i32, [1 x %struct._objc_method] }*
> @"\01l_OBJC_$_CLASS_METHODS_MyObject" to %struct.__method_list_t*),
> %struct._objc_protocol_list* null, %struct._ivar_list_t* null, i8* null,
> %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8
> +@"\01l_OBJC_CLASS_RO_$_MyObject" = private global %struct._class_ro_t {
> i32 130, i32 0, i32 0, i8* null, i8* getelementptr inbounds ([9 x i8], [9 x
> i8]* @OBJC_CLASS_NAME_, i32 0, i32 0), %struct.__method_list_t* null,
> %struct._objc_protocol_list* null, %struct._ivar_list_t* null, i8* null,
> %struct._prop_list_t* null }, section "__DATA, __objc_const", align 8
> +@"OBJC_LABEL_CLASS_$" = private global [1 x i8*] [i8* bitcast
> (%struct._class_t* @"OBJC_CLASS_$_MyObject" to i8*)], section "__DATA,
> __objc_classlist, regular, no_dead_strip", align 8
> + at llvm.compiler.used = appending global [12 x i8*] [i8* bitcast
> (%struct._class_t** @"OBJC_CLASSLIST_REFERENCES_$_" to i8*), i8*
> getelementptr inbounds ([6 x i8], [6 x i8]* @OBJC_METH_VAR_NAME_, i32 0,
> i32 0), i8* bitcast (i8** @OBJC_SELECTOR_REFERENCES_ to i8*), i8*
> getelementptr inbounds ([14 x i8], [14 x i8]* @OBJC_METH_VAR_NAME_.1, i32
> 0, i32 0), i8* bitcast (i8** @OBJC_SELECTOR_REFERENCES_.2 to i8*), i8*
> getelementptr inbounds ([9 x i8], [9 x i8]* @OBJC_METH_VAR_NAME_.3, i32 0,
> i32 0), i8* bitcast (i8** @OBJC_SELECTOR_REFERENCES_.4 to i8*), i8*
> getelementptr inbounds ([9 x i8], [9 x i8]* @OBJC_CLASS_NAME_, i32 0, i32
> 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]*
> @OBJC_METH_VAR_NAME_.5, i32 0, i32 0), i8* getelementptr inbounds ([21 x
> i8], [21 x i8]* @OBJC_METH_VAR_TYPE_, i32 0, i32 0), i8* bitcast ({ i32,
> i32, [1 x %struct._objc_method] }* @"\01l_OBJC_$_CLASS_METHODS_MyObject" to
> i8*), i8* bitcast ([1 x i8*]* @"OBJC_LABEL_CLASS_$" to i8*)], section
> "llvm.metadata"
> + at llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{
> i32, void ()*, i8* } { i32 1, void ()* @asan.module_ctor, i8* null }]
> + at __asan_shadow_memory_dynamic_address = external global i64
> + at __asan_gen_ = private unnamed_addr constant [34 x i8] c"2 32 16 9
> imageSize 64 8 6 object\00", align 1
> +
> +; Function Attrs: noinline sanitize_address ssp uwtable
> +define internal i8* @"\01+[MyObject doWithSize:]"(i8* %self, i8* %_cmd,
> [2 x double] %imageSize.coerce) #0 !dbg !14 {
> +entry:
> + %0 = load i64, i64* @__asan_shadow_memory_dynamic_address
> + %self.addr = alloca i8*, align 8
> + %_cmd.addr = alloca i8*, align 8
> + %MyAlloca = alloca [96 x i8], align 32, !dbg !35
> + %1 = ptrtoint [96 x i8]* %MyAlloca to i64, !dbg !35
> + %2 = add i64 %1, 32, !dbg !35
> + %3 = inttoptr i64 %2 to %struct.CGSize*, !dbg !35
> + %4 = add i64 %1, 64, !dbg !35
> + %5 = inttoptr i64 %4 to %0**, !dbg !35
> + %6 = inttoptr i64 %1 to i64*, !dbg !35
> + store i64 1102416563, i64* %6, !dbg !35
> + %7 = add i64 %1, 8, !dbg !35
> + %8 = inttoptr i64 %7 to i64*, !dbg !35
> + store i64 ptrtoint ([34 x i8]* @__asan_gen_ to i64), i64* %8, !dbg !35
> + %9 = add i64 %1, 16, !dbg !35
> + %10 = inttoptr i64 %9 to i64*, !dbg !35
> + store i64 ptrtoint (i8* (i8*, i8*, [2 x double])* @"\01+[MyObject
> doWithSize:]" to i64), i64* %10, !dbg !35
> + %11 = lshr i64 %1, 3, !dbg !35
> + %12 = add i64 %11, %0, !dbg !35
> + %13 = add i64 %12, 0, !dbg !35
> + %14 = inttoptr i64 %13 to i64*, !dbg !35
> + store i64 -940689368107847183, i64* %14, align 1, !dbg !35
> + %15 = add i64 %12, 9, !dbg !35
> + %16 = inttoptr i64 %15 to i16*, !dbg !35
> + store i16 -3085, i16* %16, align 1, !dbg !35
> + %17 = add i64 %12, 11, !dbg !35
> + %18 = inttoptr i64 %17 to i8*, !dbg !35
> + store i8 -13, i8* %18, align 1, !dbg !35
> + call void @llvm.dbg.declare(metadata %struct.CGSize* %3, metadata !36,
> metadata !37), !dbg !38
> + call void @llvm.dbg.declare(metadata %0** %5, metadata !39, metadata
> !37), !dbg !45
> + %19 = bitcast %struct.CGSize* %3 to [2 x double]*
> + %20 = ptrtoint [2 x double]* %19 to i64
> + %21 = lshr i64 %20, 3
> + %22 = add i64 %21, %0
> + %23 = inttoptr i64 %22 to i16*
> + %24 = load i16, i16* %23
> + %25 = icmp ne i16 %24, 0
> + br i1 %25, label %26, label %27
> +
> +; <label>:26: ; preds = %entry
> + call void @__asan_report_store16(i64 %20)
> + call void asm sideeffect "", ""()
> + unreachable
> +
> +; <label>:27: ; preds = %entry
> + store [2 x double] %imageSize.coerce, [2 x double]* %19, align 8
> + store i8* %self, i8** %self.addr, align 8
> + call void @llvm.dbg.declare(metadata i8** %self.addr, metadata !46,
> metadata !48), !dbg !49
> + store i8* %_cmd, i8** %_cmd.addr, align 8
> + call void @llvm.dbg.declare(metadata i8** %_cmd.addr, metadata !50,
> metadata !48), !dbg !49
> + %28 = load %struct._class_t*, %struct._class_t**
> @"OBJC_CLASSLIST_REFERENCES_$_", align 8, !dbg !52
> + %29 = add i64 lshr (i64 ptrtoint (i8** @OBJC_SELECTOR_REFERENCES_ to
> i64), i64 3), %0, !dbg !52
> + %30 = inttoptr i64 %29 to i8*, !dbg !52
> + %31 = load i8, i8* %30, !dbg !52
> + %32 = icmp ne i8 %31, 0, !dbg !52
> + br i1 %32, label %33, label %34, !dbg !52
> +
> +; <label>:33: ; preds = %27
> + call void @__asan_report_load8(i64 ptrtoint (i8**
> @OBJC_SELECTOR_REFERENCES_ to i64)), !dbg !52
> + call void asm sideeffect "", ""(), !dbg !52
> + unreachable, !dbg !52
> +
> +; <label>:34: ; preds = %27
> + %35 = load i8*, i8** @OBJC_SELECTOR_REFERENCES_, align 8, !dbg !52,
> !invariant.load !2
> + %36 = bitcast %struct._class_t* %28 to i8*, !dbg !52
> + %call = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8*
> (i8*, i8*)*)(i8* %36, i8* %35), !dbg !52
> + %37 = bitcast i8* %call to %0*, !dbg !52
> + %38 = add i64 lshr (i64 ptrtoint (i8** @OBJC_SELECTOR_REFERENCES_.2 to
> i64), i64 3), %0, !dbg !53
> + %39 = inttoptr i64 %38 to i8*, !dbg !53
> + %40 = load i8, i8* %39, !dbg !53
> + %41 = icmp ne i8 %40, 0, !dbg !53
> + br i1 %41, label %42, label %43, !dbg !53
> +
> +; <label>:42: ; preds = %34
> + call void @__asan_report_load8(i64 ptrtoint (i8**
> @OBJC_SELECTOR_REFERENCES_.2 to i64)), !dbg !53
> + call void asm sideeffect "", ""(), !dbg !53
> + unreachable, !dbg !53
> +
> +; <label>:43: ; preds = %34
> + %44 = load i8*, i8** @OBJC_SELECTOR_REFERENCES_.2, align 8, !dbg !53,
> !invariant.load !2
> + %45 = bitcast %0* %37 to i8*, !dbg !53
> + %46 = bitcast %struct.CGSize* %3 to [2 x double]*, !dbg !53
> + %47 = ptrtoint [2 x double]* %46 to i64, !dbg !53
> + %48 = lshr i64 %47, 3, !dbg !53
> + %49 = add i64 %48, %0, !dbg !53
> + %50 = inttoptr i64 %49 to i16*, !dbg !53
> + %51 = load i16, i16* %50, !dbg !53
> + %52 = icmp ne i16 %51, 0, !dbg !53
> + br i1 %52, label %53, label %54, !dbg !53
> +
> +; <label>:53: ; preds = %43
> + call void @__asan_report_load16(i64 %47), !dbg !53
> + call void asm sideeffect "", ""(), !dbg !53
> + unreachable, !dbg !53
> +
> +; <label>:54: ; preds = %43
> + %55 = load [2 x double], [2 x double]* %46, align 8, !dbg !53
> + %call1 = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8*
> (i8*, i8*, [2 x double])*)(i8* %45, i8* %44, [2 x double] %55), !dbg !53
> + %56 = bitcast i8* %call1 to %0*, !dbg !53
> + %57 = ptrtoint %0** %5 to i64, !dbg !45
> + %58 = lshr i64 %57, 3, !dbg !45
> + %59 = add i64 %58, %0, !dbg !45
> + %60 = inttoptr i64 %59 to i8*, !dbg !45
> + %61 = load i8, i8* %60, !dbg !45
> + %62 = icmp ne i8 %61, 0, !dbg !45
> + br i1 %62, label %63, label %64, !dbg !45
> +
> +; <label>:63: ; preds = %54
> + call void @__asan_report_store8(i64 %57), !dbg !45
> + call void asm sideeffect "", ""(), !dbg !45
> + unreachable, !dbg !45
> +
> +; <label>:64: ; preds = %54
> + store %0* %56, %0** %5, align 8, !dbg !45
> + %65 = load %0*, %0** %5, align 8, !dbg !54
> + %66 = add i64 lshr (i64 ptrtoint (i8** @OBJC_SELECTOR_REFERENCES_.4 to
> i64), i64 3), %0, !dbg !55
> + %67 = inttoptr i64 %66 to i8*, !dbg !55
> + %68 = load i8, i8* %67, !dbg !55
> + %69 = icmp ne i8 %68, 0, !dbg !55
> + br i1 %69, label %70, label %71, !dbg !55
> +
> +; <label>:70: ; preds = %64
> + call void @__asan_report_load8(i64 ptrtoint (i8**
> @OBJC_SELECTOR_REFERENCES_.4 to i64)), !dbg !55
> + call void asm sideeffect "", ""(), !dbg !55
> + unreachable, !dbg !55
> +
> +; <label>:71: ; preds = %64
> + %72 = load i8*, i8** @OBJC_SELECTOR_REFERENCES_.4, align 8, !dbg !55,
> !invariant.load !2
> + %73 = bitcast %0* %65 to i8*, !dbg !55
> + %call2 = call i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8*
> (i8*, i8*)*)(i8* %73, i8* %72), !dbg !55
> + call void asm sideeffect "mov\09fp, fp\09\09# marker for
> objc_retainAutoreleaseReturnValue", ""(), !dbg !55
> + %74 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call2) #3, !dbg
> !55
> + %75 = bitcast %0** %5 to i8**, !dbg !56
> + call void @objc_storeStrong(i8** %75, i8* null) #3, !dbg !56
> + %76 = tail call i8* @objc_autoreleaseReturnValue(i8* %74) #3, !dbg !56
> + store i64 1172321806, i64* %6, !dbg !56
> + %77 = add i64 %12, 0, !dbg !56
> + %78 = inttoptr i64 %77 to i64*, !dbg !56
> + store i64 0, i64* %78, align 1, !dbg !56
> + %79 = add i64 %12, 9, !dbg !56
> + %80 = inttoptr i64 %79 to i16*, !dbg !56
> + store i16 0, i16* %80, align 1, !dbg !56
> + %81 = add i64 %12, 11, !dbg !56
> + %82 = inttoptr i64 %81 to i8*, !dbg !56
> + store i8 0, i8* %82, align 1, !dbg !56
> + ret i8* %76, !dbg !56
> +}
> +
> +; Function Attrs: nounwind readnone
> +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
> +
> +; Function Attrs: nonlazybind
> +declare i8* @objc_msgSend(i8*, i8*, ...) #2
> +
> +declare i8* @objc_retainAutoreleasedReturnValue(i8* returned)
> +
> +declare void @objc_storeStrong(i8**, i8*)
> +
> +declare i8* @objc_autoreleaseReturnValue(i8* returned)
> +
> +define internal void @asan.module_ctor() {
> + call void @__asan_init()
> + call void @__asan_version_mismatch_check_v8()
> + ret void
> +}
> +
> +declare void @__asan_init()
> +
> +declare void @__asan_version_mismatch_check_v8()
> +
> +declare void @__asan_report_load8(i64)
> +
> +declare void @__asan_report_load16(i64)
> +
> +declare void @__asan_report_store8(i64)
> +
> +declare void @__asan_report_store16(i64)
> +
> +attributes #0 = { noinline sanitize_address ssp uwtable }
> +attributes #1 = { nounwind readnone }
> +attributes #2 = { nonlazybind }
> +attributes #3 = { nounwind }
> +
> +!llvm.dbg.cu = !{!0}
> +!llvm.module.flags = !{!5, !6, !7, !8, !9, !10, !11, !12}
> +!llvm.ident = !{!13}
> +
> +!0 = distinct !DICompileUnit(language: DW_LANG_ObjC, file: !1, producer:
> "clang version 5.0.0 (trunk 295779) (llvm/trunk 295777)", isOptimized:
> false, runtimeVersion: 2, emissionKind: FullDebug, enums: !2,
> retainedTypes: !3)
> +!1 = !DIFile(filename: "m.m", directory: "/")
> +!2 = !{}
> +!3 = !{!4}
> +!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "MyObject",
> scope: !1, file: !1, line: 15, flags: DIFlagObjcClassComplete, elements:
> !2, runtimeLang: DW_LANG_ObjC)
> +!5 = !{i32 1, !"Objective-C Version", i32 2}
> +!6 = !{i32 1, !"Objective-C Image Info Version", i32 0}
> +!7 = !{i32 1, !"Objective-C Image Info Section", !"__DATA,
> __objc_imageinfo, regular, no_dead_strip"}
> +!8 = !{i32 4, !"Objective-C Garbage Collection", i32 0}
> +!9 = !{i32 1, !"Objective-C Class Properties", i32 64}
> +!10 = !{i32 2, !"Dwarf Version", i32 2}
> +!11 = !{i32 2, !"Debug Info Version", i32 3}
> +!12 = !{i32 1, !"PIC Level", i32 2}
> +!13 = !{!"clang version 5.0.0 (trunk 295779) (llvm/trunk 295777)"}
> +!14 = distinct !DISubprogram(name: "+[MyObject doWithSize:]", scope: !1,
> file: !1, line: 16, type: !15, isLocal: true, isDefinition: true,
> scopeLine: 16, flags: DIFlagPrototyped, isOptimized: false, unit: !0,
> variables: !2)
> +!15 = !DISubroutineType(types: !16)
> +!16 = !{!17, !24, !26, !29}
> +!17 = !DIDerivedType(tag: DW_TAG_typedef, name: "id", file: !1, baseType:
> !18)
> +!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !19, size: 64)
> +!19 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_object",
> file: !1, elements: !20)
> +!20 = !{!21}
> +!21 = !DIDerivedType(tag: DW_TAG_member, name: "isa", scope: !19, file:
> !1, baseType: !22, size: 64)
> +!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !23, size: 64)
> +!23 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_class",
> file: !1, flags: DIFlagFwdDecl)
> +!24 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !25, flags:
> DIFlagArtificial | DIFlagObjectPointer)
> +!25 = !DIDerivedType(tag: DW_TAG_typedef, name: "Class", file: !1,
> baseType: !22)
> +!26 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", file: !1,
> baseType: !27, flags: DIFlagArtificial)
> +!27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !28, size: 64)
> +!28 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_selector",
> file: !1, flags: DIFlagFwdDecl)
> +!29 = !DIDerivedType(tag: DW_TAG_typedef, name: "CGSize", file: !1, line:
> 10, baseType: !30)
> +!30 = distinct !DICompositeType(tag: DW_TAG_structure_type, name:
> "CGSize", file: !1, line: 6, size: 128, elements: !31)
> +!31 = !{!32, !34}
> +!32 = !DIDerivedType(tag: DW_TAG_member, name: "width", scope: !30, file:
> !1, line: 7, baseType: !33, size: 64)
> +!33 = !DIBasicType(name: "double", size: 64, encoding: DW_ATE_float)
> +!34 = !DIDerivedType(tag: DW_TAG_member, name: "height", scope: !30,
> file: !1, line: 8, baseType: !33, size: 64, offset: 64)
> +!35 = !DILocation(line: 16, scope: !14)
> +!36 = !DILocalVariable(name: "imageSize", arg: 3, scope: !14, file: !1,
> line: 16, type: !29)
> +!37 = !DIExpression(DW_OP_deref)
> +!38 = !DILocation(line: 16, column: 26, scope: !14)
> +!39 = !DILocalVariable(name: "object", scope: !14, file: !1, line: 17,
> type: !40)
> +!40 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !41, size: 64)
> +!41 = !DICompositeType(tag: DW_TAG_structure_type, name: "Object", scope:
> !1, file: !1, line: 11, elements: !42, runtimeLang: DW_LANG_ObjC)
> +!42 = !{!43}
> +!43 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !41, baseType: !44)
> +!44 = !DICompositeType(tag: DW_TAG_structure_type, name: "NSObject",
> scope: !1, file: !1, line: 3, elements: !2, runtimeLang: DW_LANG_ObjC)
> +!45 = !DILocation(line: 17, column: 11, scope: !14)
> +!46 = !DILocalVariable(name: "self", arg: 1, scope: !14, type: !47,
> flags: DIFlagArtificial | DIFlagObjectPointer)
> +!47 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !25)
> +!48 = !DIExpression()
> +!49 = !DILocation(line: 0, scope: !14)
> +!50 = !DILocalVariable(name: "_cmd", arg: 2, scope: !14, type: !51,
> flags: DIFlagArtificial)
> +!51 = !DIDerivedType(tag: DW_TAG_typedef, name: "SEL", file: !1,
> baseType: !27)
> +!52 = !DILocation(line: 17, column: 21, scope: !14)
> +!53 = !DILocation(line: 17, column: 20, scope: !14)
> +!54 = !DILocation(line: 18, column: 11, scope: !14)
> +!55 = !DILocation(line: 18, column: 10, scope: !14)
> +!56 = !DILocation(line: 19, column: 1, scope: !14)
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>
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