Revert "[hwasan] Update dbg.assign intrinsics in HWAsan pass" #78971
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@llvm/pr-subscribers-compiler-rt-sanitizer @llvm/pr-subscribers-llvm-transforms Author: Orlando Cazalet-Hyams (OCHyams) ChangesReverts llvm/llvm-project#78606 https://lab.llvm.org/buildbot/#/builders/77/builds/33963 Full diff: https://github.com/llvm/llvm-project/pull/78971.diff 7 Files Affected:
diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index 2e64d0db57b259..fcd3f77f8f6e2b 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -2200,6 +2200,10 @@ bool AssignmentTrackingPass::runOnFunction(Function &F) {
if (F.hasFnAttribute(Attribute::OptimizeNone))
return /*Changed*/ false;
+ // FIXME: https://github.com/llvm/llvm-project/issues/76545
+ if (F.hasFnAttribute(Attribute::SanitizeHWAddress))
+ return /*Changed*/ false;
+
bool Changed = false;
auto *DL = &F.getParent()->getDataLayout();
// Collect a map of {backing storage : dbg.declares} (currently "backing
diff --git a/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
index b213915dbcf624..efb621cde90656 100644
--- a/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
+++ b/llvm/lib/Transforms/Instrumentation/HWAddressSanitizer.cpp
@@ -1435,11 +1435,6 @@ bool HWAddressSanitizer::instrumentStack(memtag::StackInfo &SInfo,
if (DDI->getVariableLocationOp(LocNo) == AI)
DDI->setExpression(DIExpression::appendOpsToArg(DDI->getExpression(),
NewOps, LocNo));
- if (auto *DAI = dyn_cast<DbgAssignIntrinsic>(DDI)) {
- assert(DAI->getAddress() == AI);
- DAI->setAddressExpression(
- DIExpression::prependOpcodes(DDI->getExpression(), NewOps));
- }
}
auto TagEnd = [&](Instruction *Node) {
diff --git a/llvm/lib/Transforms/Utils/MemoryTaggingSupport.cpp b/llvm/lib/Transforms/Utils/MemoryTaggingSupport.cpp
index d2efcde5d38032..f94047633022ca 100644
--- a/llvm/lib/Transforms/Utils/MemoryTaggingSupport.cpp
+++ b/llvm/lib/Transforms/Utils/MemoryTaggingSupport.cpp
@@ -138,20 +138,16 @@ void StackInfoBuilder::visit(Instruction &Inst) {
return;
}
if (auto *DVI = dyn_cast<DbgVariableIntrinsic>(&Inst)) {
- auto AddIfInteresting = [&](Value *V) {
+ for (Value *V : DVI->location_ops()) {
if (auto *AI = dyn_cast_or_null<AllocaInst>(V)) {
if (!isInterestingAlloca(*AI))
- return;
+ continue;
AllocaInfo &AInfo = Info.AllocasToInstrument[AI];
auto &DVIVec = AInfo.DbgVariableIntrinsics;
if (DVIVec.empty() || DVIVec.back() != DVI)
DVIVec.push_back(DVI);
}
- };
- for (Value *V : DVI->location_ops())
- AddIfInteresting(V);
- if (auto *DAI = dyn_cast<DbgAssignIntrinsic>(DVI))
- AddIfInteresting(DAI->getAddress());
+ }
}
Instruction *ExitUntag = getUntagLocationIfFunctionExit(Inst);
if (ExitUntag)
diff --git a/llvm/test/CodeGen/AArch64/dbg-assign-tag-offset-mix-loc.ll b/llvm/test/CodeGen/AArch64/dbg-assign-tag-offset-mix-loc.ll
deleted file mode 100644
index ef0dd46cb45c7f..00000000000000
--- a/llvm/test/CodeGen/AArch64/dbg-assign-tag-offset-mix-loc.ll
+++ /dev/null
@@ -1,71 +0,0 @@
-; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
-
-;; Similar to dbg-assign-tag-offset.ll except the variable 'x' has been removed
-;; and 'y' has an implicit location range as well as stack location range
-;; (according to the hand-modified debug info -- see the dbg.value).
-
-target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
-target triple = "aarch64-unknown-linux-android24"
-
-; CHECK: DW_TAG_variable
-; CHECK-NOT: DW_TAG
-; CHECK: DW_AT_LLVM_tag_offset (0x80)
-; CHECK-NEXT: DW_AT_name ("y")
-
-define dso_local void @f() !dbg !14 {
- %1 = alloca i32, align 4, !DIAssignID !31
- %2 = alloca i32, align 4, !DIAssignID !32
- call void @llvm.dbg.assign(metadata i1 undef, metadata !20, metadata !DIExpression(), metadata !32, metadata ptr %2, metadata !DIExpression(DW_OP_LLVM_tag_offset, 128)), !dbg !22
- call void @llvm.dbg.value(metadata i32 2, metadata !20, metadata !DIExpression()), !dbg !22
- call void @use(ptr null), !dbg !28
- store i32 1, ptr %2, align 4, !dbg !23, !tbaa !24, !DIAssignID !33
- call void @llvm.dbg.assign(metadata i32 1, metadata !20, metadata !DIExpression(), metadata !33, metadata ptr %2, metadata !DIExpression(DW_OP_LLVM_tag_offset, 128)), !dbg !22
- call void @use(ptr nonnull %1), !dbg !28
- call void @use(ptr nonnull %2), !dbg !29
- ret void, !dbg !30
-}
-
-declare !dbg !5 void @use(ptr)
-
-declare void @llvm.dbg.value(metadata, metadata, metadata)
-declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!8, !9, !10, !11, !12, !34}
-!llvm.ident = !{!13}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
-!1 = !DIFile(filename: "dbg.cc", directory: "/tmp")
-!2 = !{}
-!3 = !{!4, !5}
-!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
-!5 = !DISubprogram(name: "use", scope: !1, file: !1, line: 2, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
-!6 = !DISubroutineType(types: !7)
-!7 = !{null, !4}
-!8 = !{i32 7, !"Dwarf Version", i32 4}
-!9 = !{i32 2, !"Debug Info Version", i32 3}
-!10 = !{i32 1, !"wchar_size", i32 4}
-!11 = !{i32 7, !"PIC Level", i32 2}
-!12 = !{i32 7, !"PIE Level", i32 2}
-!13 = !{!"clang version 10.0.0"}
-!14 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 4, type: !15, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17)
-!15 = !DISubroutineType(types: !16)
-!16 = !{null}
-!17 = !{!18, !20}
-!18 = !DILocalVariable(name: "x", scope: !14, file: !1, line: 5, type: !19)
-!19 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
-!20 = !DILocalVariable(name: "y", scope: !14, file: !1, line: 5, type: !19)
-!21 = !DILocation(line: 5, column: 3, scope: !14)
-!22 = !DILocation(line: 0, scope: !14)
-!23 = !DILocation(line: 5, column: 10, scope: !14)
-!24 = !{!25, !25, i64 0}
-!25 = !{!"int", !26, i64 0}
-!26 = !{!"omnipotent char", !27, i64 0}
-!27 = !{!"Simple C++ TBAA"}
-!28 = !DILocation(line: 6, column: 3, scope: !14)
-!29 = !DILocation(line: 7, column: 3, scope: !14)
-!30 = !DILocation(line: 8, column: 1, scope: !14)
-!31 = distinct !DIAssignID()
-!32 = distinct !DIAssignID()
-!33 = distinct !DIAssignID()
-!34 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
diff --git a/llvm/test/CodeGen/AArch64/dbg-assign-tag-offset.ll b/llvm/test/CodeGen/AArch64/dbg-assign-tag-offset.ll
deleted file mode 100644
index a587f93d14d70d..00000000000000
--- a/llvm/test/CodeGen/AArch64/dbg-assign-tag-offset.ll
+++ /dev/null
@@ -1,71 +0,0 @@
-; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
-
-target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
-target triple = "aarch64-unknown-linux-android24"
-
-; CHECK: DW_TAG_variable
-; CHECK-NOT: DW_TAG
-; CHECK: DW_AT_LLVM_tag_offset (0x00)
-; CHECK-NEXT: DW_AT_name ("x")
-
-; CHECK: DW_TAG_variable
-; CHECK-NOT: DW_TAG
-; CHECK: DW_AT_LLVM_tag_offset (0x80)
-; CHECK-NEXT: DW_AT_name ("y")
-
-define dso_local void @f() !dbg !14 {
- %1 = alloca i32, align 4, !DIAssignID !31
- call void @llvm.dbg.assign(metadata i1 undef, metadata !18, metadata !DIExpression(), metadata !31, metadata ptr %1, metadata !DIExpression(DW_OP_LLVM_tag_offset, 0)), !dbg !22
- %2 = alloca i32, align 4, !DIAssignID !32
- call void @llvm.dbg.assign(metadata i1 undef, metadata !20, metadata !DIExpression(), metadata !32, metadata ptr %2, metadata !DIExpression(DW_OP_LLVM_tag_offset, 128)), !dbg !22
- store i32 1, ptr %2, align 4, !dbg !23, !tbaa !24, !DIAssignID !33
- call void @llvm.dbg.assign(metadata i32 1, metadata !20, metadata !DIExpression(), metadata !33, metadata ptr %2, metadata !DIExpression(DW_OP_LLVM_tag_offset, 128)), !dbg !22
- call void @use(ptr nonnull %1), !dbg !28
- call void @use(ptr nonnull %2), !dbg !29
- ret void, !dbg !30
-}
-
-declare !dbg !5 void @use(ptr)
-
-declare void @llvm.dbg.value(metadata, metadata, metadata)
-declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!8, !9, !10, !11, !12, !34}
-!llvm.ident = !{!13}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
-!1 = !DIFile(filename: "dbg.cc", directory: "/tmp")
-!2 = !{}
-!3 = !{!4, !5}
-!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
-!5 = !DISubprogram(name: "use", scope: !1, file: !1, line: 2, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
-!6 = !DISubroutineType(types: !7)
-!7 = !{null, !4}
-!8 = !{i32 7, !"Dwarf Version", i32 4}
-!9 = !{i32 2, !"Debug Info Version", i32 3}
-!10 = !{i32 1, !"wchar_size", i32 4}
-!11 = !{i32 7, !"PIC Level", i32 2}
-!12 = !{i32 7, !"PIE Level", i32 2}
-!13 = !{!"clang version 10.0.0"}
-!14 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 4, type: !15, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17)
-!15 = !DISubroutineType(types: !16)
-!16 = !{null}
-!17 = !{!18, !20}
-!18 = !DILocalVariable(name: "x", scope: !14, file: !1, line: 5, type: !19)
-!19 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
-!20 = !DILocalVariable(name: "y", scope: !14, file: !1, line: 5, type: !19)
-!21 = !DILocation(line: 5, column: 3, scope: !14)
-!22 = !DILocation(line: 0, scope: !14)
-!23 = !DILocation(line: 5, column: 10, scope: !14)
-!24 = !{!25, !25, i64 0}
-!25 = !{!"int", !26, i64 0}
-!26 = !{!"omnipotent char", !27, i64 0}
-!27 = !{!"Simple C++ TBAA"}
-!28 = !DILocation(line: 6, column: 3, scope: !14)
-!29 = !DILocation(line: 7, column: 3, scope: !14)
-!30 = !DILocation(line: 8, column: 1, scope: !14)
-!31 = distinct !DIAssignID()
-!32 = distinct !DIAssignID()
-!33 = distinct !DIAssignID()
-!34 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
diff --git a/llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/hwasan.ll b/llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/hwasan.ll
index 6c9366609cba27..c4b209de770173 100644
--- a/llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/hwasan.ll
+++ b/llvm/test/DebugInfo/Generic/assignment-tracking/declare-to-assign/hwasan.ll
@@ -1,6 +1,6 @@
; RUN: opt %s -S -passes=declare-to-assign -o - | FileCheck %s
-; CHECK: call void @llvm.dbg.assign
+; CHECK: call void @llvm.dbg.declare
define dso_local void @f() sanitize_hwaddress !dbg !9 {
entry:
diff --git a/llvm/test/Instrumentation/HWAddressSanitizer/dbg-assign-tag-offset.ll b/llvm/test/Instrumentation/HWAddressSanitizer/dbg-assign-tag-offset.ll
deleted file mode 100644
index 1248c0bc586abb..00000000000000
--- a/llvm/test/Instrumentation/HWAddressSanitizer/dbg-assign-tag-offset.ll
+++ /dev/null
@@ -1,59 +0,0 @@
-; RUN: opt -passes=hwasan -S -o - %s | FileCheck %s
-
-source_filename = "test.ll"
-target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
-target triple = "aarch64--linux-android"
-
-declare void @g(ptr, ptr, ptr, ptr, ptr, ptr)
-
-; Function Attrs: sanitize_hwaddress
-define void @f() #0 !dbg !7 {
-entry:
- %nodebug0 = alloca ptr, align 8
- %nodebug1 = alloca ptr, align 8
- %nodebug2 = alloca ptr, align 8
- %nodebug3 = alloca ptr, align 8
- ; CHECK: %a = alloca{{.*}} !DIAssignID ![[ID1:[0-9]+]]
- %a = alloca ptr, align 8, !DIAssignID !13
- ; CHECK: @llvm.dbg.assign{{.*}} metadata ![[ID1]]{{.*}} !DIExpression(DW_OP_LLVM_tag_offset, 32)
- call void @llvm.dbg.assign(metadata i1 undef, metadata !14, metadata !DIExpression(), metadata !13, metadata ptr %a, metadata !DIExpression()), !dbg !15
- ; CHECK: %b = alloca{{.*}} !DIAssignID ![[ID2:[0-9]+]]
- %b = alloca ptr, align 8, !DIAssignID !16
- ; CHECK: @llvm.dbg.assign{{.*}} metadata ![[ID2]]{{.*}} !DIExpression(DW_OP_LLVM_tag_offset, 96)
- call void @llvm.dbg.assign(metadata i1 undef, metadata !17, metadata !DIExpression(), metadata !16, metadata ptr %b, metadata !DIExpression()), !dbg !15
- call void @g(ptr %nodebug0, ptr %nodebug1, ptr %nodebug2, ptr %nodebug3, ptr %a, ptr %b)
- ret void, !dbg !18
-}
-
-; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
-declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
-
-; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
-declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) #1
-
-attributes #0 = { sanitize_hwaddress }
-attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!3, !4, !5}
-!llvm.ident = !{!6}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
-!1 = !DIFile(filename: "x.c", directory: "/")
-!2 = !{}
-!3 = !{i32 2, !"Dwarf Version", i32 4}
-!4 = !{i32 2, !"Debug Info Version", i32 3}
-!5 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
-!6 = !{!"clang"}
-!7 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
-!8 = !DISubroutineType(types: !9)
-!9 = !{null, !10}
-!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)
-!11 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !12)
-!12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
-!13 = distinct !DIAssignID()
-!14 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 1, type: !10)
-!15 = !DILocation(line: 0, scope: !7)
-!16 = distinct !DIAssignID()
-!17 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 1, type: !10)
-!18 = !DILocation(line: 1, column: 37, scope: !7)
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Reverts #78606
https://lab.llvm.org/buildbot/#/builders/77/builds/33963