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Differential D102867

[asan] Add autogenerated test for fake stack
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Authored by vitalybuka on May 20 2021, 1:10 PM.

Details

Reviewers
kda
Commits
rGb1140554e1b2: [asan] Add autogenerated test for fake stack
Summary

This will help to see result of D102462.

Test was generated with
./llvm/utils/update_test_checks.py llvm/test/Instrumentation/AddressSanitizer/fake-stack.ll --opt-binary <build_dir>/bin/opt

Diff Detail

Event Timeline

vitalybuka requested review of this revision.May 20 2021, 1:10 PM
vitalybuka created this revision.
Herald added a project: Restricted Project. · View Herald TranscriptMay 20 2021, 1:10 PM
Herald added a subscriber: llvm-commits. · View Herald Transcript
vitalybuka edited the summary of this revision. (Show Details)May 20 2021, 1:11 PM
vitalybuka mentioned this in D102462: LLVM Detailed IR tests for introduction of flag -fsanitize-address-detect-stack-use-after-return-mode..May 20 2021, 1:14 PM
vitalybuka updated this revision to Diff 346837.May 20 2021, 1:22 PM

dedup with common prefix

vitalybuka updated this revision to Diff 346840.May 20 2021, 1:27 PM

simplify even more

kda accepted this revision.May 20 2021, 2:01 PM

LGTM.

This revision is now accepted and ready to land.May 20 2021, 2:01 PM
Harbormaster completed remote builds in B105496: Diff 346840.May 20 2021, 2:12 PM
Closed by commit rGb1140554e1b2: [asan] Add autogenerated test for fake stack (authored by vitalybuka). · Explain WhyMay 20 2021, 3:48 PM
This revision was automatically updated to reflect the committed changes.
vitalybuka added a commit: rGb1140554e1b2: [asan] Add autogenerated test for fake stack.

Revision Contents

PathSize
llvm/
test/
Instrumentation/
AddressSanitizer/
252 lines

Diff 346837

llvm/test/Instrumentation/AddressSanitizer/fake-stack.ll

  • This file was added.
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes='asan-pipeline' -asan-use-after-return=0 -S | FileCheck %s --check-prefixes=CHECK,NEVER
; RUN: opt < %s -passes='asan-pipeline' -asan-use-after-return=1 -S | FileCheck %s --check-prefixes=CHECK,RUNTIME
; FIXME: 1->2 in future patch
; RUN: opt < %s -passes='asan-pipeline' -asan-use-after-return=1 -S | FileCheck %s --check-prefixes=CHECK,ALWAYS
target datalayout = "e-i64:64-f80:128-s:64-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @Foo(i8*)
define void @Empty() uwtable sanitize_address {
; CHECK-LABEL: @Empty(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
;
entry:
ret void
}
define void @Simple() uwtable sanitize_address {
; NEVER-LABEL: @Simple(
; NEVER-NEXT: entry:
; NEVER-NEXT: [[MYALLOCA:%.*]] = alloca i8, i64 96, align 32
; NEVER-NEXT: [[TMP0:%.*]] = ptrtoint i8* [[MYALLOCA]] to i64
; NEVER-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], 32
; NEVER-NEXT: [[TMP2:%.*]] = inttoptr i64 [[TMP1]] to [20 x i8]*
; NEVER-NEXT: [[TMP3:%.*]] = inttoptr i64 [[TMP0]] to i64*
; NEVER-NEXT: store i64 1102416563, i64* [[TMP3]], align 8
; NEVER-NEXT: [[TMP4:%.*]] = add i64 [[TMP0]], 8
; NEVER-NEXT: [[TMP5:%.*]] = inttoptr i64 [[TMP4]] to i64*
; NEVER-NEXT: store i64 ptrtoint ([12 x i8]* @___asan_gen_ to i64), i64* [[TMP5]], align 8
; NEVER-NEXT: [[TMP6:%.*]] = add i64 [[TMP0]], 16
; NEVER-NEXT: [[TMP7:%.*]] = inttoptr i64 [[TMP6]] to i64*
; NEVER-NEXT: store i64 ptrtoint (void ()* @Simple to i64), i64* [[TMP7]], align 8
; NEVER-NEXT: [[TMP8:%.*]] = lshr i64 [[TMP0]], 3
; NEVER-NEXT: [[TMP9:%.*]] = add i64 [[TMP8]], 2147450880
; NEVER-NEXT: [[TMP10:%.*]] = add i64 [[TMP9]], 0
; NEVER-NEXT: [[TMP11:%.*]] = inttoptr i64 [[TMP10]] to i64*
; NEVER-NEXT: store i64 -935622818527055375, i64* [[TMP11]], align 1
; NEVER-NEXT: [[TMP12:%.*]] = add i64 [[TMP9]], 8
; NEVER-NEXT: [[TMP13:%.*]] = inttoptr i64 [[TMP12]] to i32*
; NEVER-NEXT: store i32 -202116109, i32* [[TMP13]], align 1
; NEVER-NEXT: [[XX:%.*]] = getelementptr inbounds [20 x i8], [20 x i8]* [[TMP2]], i64 0, i64 0
; NEVER-NEXT: call void @Foo(i8* [[XX]])
; NEVER-NEXT: store i64 1172321806, i64* [[TMP3]], align 8
; NEVER-NEXT: [[TMP14:%.*]] = add i64 [[TMP9]], 0
; NEVER-NEXT: [[TMP15:%.*]] = inttoptr i64 [[TMP14]] to i64*
; NEVER-NEXT: store i64 0, i64* [[TMP15]], align 1
; NEVER-NEXT: [[TMP16:%.*]] = add i64 [[TMP9]], 8
; NEVER-NEXT: [[TMP17:%.*]] = inttoptr i64 [[TMP16]] to i32*
; NEVER-NEXT: store i32 0, i32* [[TMP17]], align 1
; NEVER-NEXT: ret void
;
; RUNTIME-LABEL: @Simple(
; RUNTIME-NEXT: entry:
; RUNTIME-NEXT: [[ASAN_LOCAL_STACK_BASE:%.*]] = alloca i64, align 8
; RUNTIME-NEXT: [[TMP0:%.*]] = load i32, i32* @__asan_option_detect_stack_use_after_return, align 4
; RUNTIME-NEXT: [[TMP1:%.*]] = icmp ne i32 [[TMP0]], 0
; RUNTIME-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP4:%.*]]
; RUNTIME: 2:
; RUNTIME-NEXT: [[TMP3:%.*]] = call i64 @__asan_stack_malloc_1(i64 96)
; RUNTIME-NEXT: br label [[TMP4]]
; RUNTIME: 4:
; RUNTIME-NEXT: [[TMP5:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[TMP3]], [[TMP2]] ]
; RUNTIME-NEXT: [[TMP6:%.*]] = icmp eq i64 [[TMP5]], 0
; RUNTIME-NEXT: br i1 [[TMP6]], label [[TMP7:%.*]], label [[TMP9:%.*]]
; RUNTIME: 7:
; RUNTIME-NEXT: [[MYALLOCA:%.*]] = alloca i8, i64 96, align 32
; RUNTIME-NEXT: [[TMP8:%.*]] = ptrtoint i8* [[MYALLOCA]] to i64
; RUNTIME-NEXT: br label [[TMP9]]
; RUNTIME: 9:
; RUNTIME-NEXT: [[TMP10:%.*]] = phi i64 [ [[TMP5]], [[TMP4]] ], [ [[TMP8]], [[TMP7]] ]
; RUNTIME-NEXT: store i64 [[TMP10]], i64* [[ASAN_LOCAL_STACK_BASE]], align 8
; RUNTIME-NEXT: [[TMP11:%.*]] = add i64 [[TMP10]], 32
; RUNTIME-NEXT: [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to [20 x i8]*
; RUNTIME-NEXT: [[TMP13:%.*]] = inttoptr i64 [[TMP10]] to i64*
; RUNTIME-NEXT: store i64 1102416563, i64* [[TMP13]], align 8
; RUNTIME-NEXT: [[TMP14:%.*]] = add i64 [[TMP10]], 8
; RUNTIME-NEXT: [[TMP15:%.*]] = inttoptr i64 [[TMP14]] to i64*
; RUNTIME-NEXT: store i64 ptrtoint ([12 x i8]* @___asan_gen_ to i64), i64* [[TMP15]], align 8
; RUNTIME-NEXT: [[TMP16:%.*]] = add i64 [[TMP10]], 16
; RUNTIME-NEXT: [[TMP17:%.*]] = inttoptr i64 [[TMP16]] to i64*
; RUNTIME-NEXT: store i64 ptrtoint (void ()* @Simple to i64), i64* [[TMP17]], align 8
; RUNTIME-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP10]], 3
; RUNTIME-NEXT: [[TMP19:%.*]] = add i64 [[TMP18]], 2147450880
; RUNTIME-NEXT: [[TMP20:%.*]] = add i64 [[TMP19]], 0
; RUNTIME-NEXT: [[TMP21:%.*]] = inttoptr i64 [[TMP20]] to i64*
; RUNTIME-NEXT: store i64 -935622818527055375, i64* [[TMP21]], align 1
; RUNTIME-NEXT: [[TMP22:%.*]] = add i64 [[TMP19]], 8
; RUNTIME-NEXT: [[TMP23:%.*]] = inttoptr i64 [[TMP22]] to i32*
; RUNTIME-NEXT: store i32 -202116109, i32* [[TMP23]], align 1
; RUNTIME-NEXT: [[XX:%.*]] = getelementptr inbounds [20 x i8], [20 x i8]* [[TMP12]], i64 0, i64 0
; RUNTIME-NEXT: call void @Foo(i8* [[XX]])
; RUNTIME-NEXT: store i64 1172321806, i64* [[TMP13]], align 8
; RUNTIME-NEXT: [[TMP24:%.*]] = icmp ne i64 [[TMP5]], 0
; RUNTIME-NEXT: br i1 [[TMP24]], label [[TMP25:%.*]], label [[TMP34:%.*]]
; RUNTIME: 25:
; RUNTIME-NEXT: [[TMP26:%.*]] = add i64 [[TMP19]], 0
; RUNTIME-NEXT: [[TMP27:%.*]] = inttoptr i64 [[TMP26]] to i64*
; RUNTIME-NEXT: store i64 -723401728380766731, i64* [[TMP27]], align 1
; RUNTIME-NEXT: [[TMP28:%.*]] = add i64 [[TMP19]], 8
; RUNTIME-NEXT: [[TMP29:%.*]] = inttoptr i64 [[TMP28]] to i64*
; RUNTIME-NEXT: store i64 -723401728380766731, i64* [[TMP29]], align 1
; RUNTIME-NEXT: [[TMP30:%.*]] = add i64 [[TMP5]], 120
; RUNTIME-NEXT: [[TMP31:%.*]] = inttoptr i64 [[TMP30]] to i64*
; RUNTIME-NEXT: [[TMP32:%.*]] = load i64, i64* [[TMP31]], align 8
; RUNTIME-NEXT: [[TMP33:%.*]] = inttoptr i64 [[TMP32]] to i8*
; RUNTIME-NEXT: store i8 0, i8* [[TMP33]], align 1
; RUNTIME-NEXT: br label [[TMP39:%.*]]
; RUNTIME: 34:
; RUNTIME-NEXT: [[TMP35:%.*]] = add i64 [[TMP19]], 0
; RUNTIME-NEXT: [[TMP36:%.*]] = inttoptr i64 [[TMP35]] to i64*
; RUNTIME-NEXT: store i64 0, i64* [[TMP36]], align 1
; RUNTIME-NEXT: [[TMP37:%.*]] = add i64 [[TMP19]], 8
; RUNTIME-NEXT: [[TMP38:%.*]] = inttoptr i64 [[TMP37]] to i32*
; RUNTIME-NEXT: store i32 0, i32* [[TMP38]], align 1
; RUNTIME-NEXT: br label [[TMP39]]
; RUNTIME: 39:
; RUNTIME-NEXT: ret void
;
; ALWAYS-LABEL: @Simple(
; ALWAYS-NEXT: entry:
; ALWAYS-NEXT: [[ASAN_LOCAL_STACK_BASE:%.*]] = alloca i64, align 8
; ALWAYS-NEXT: [[TMP0:%.*]] = load i32, i32* @__asan_option_detect_stack_use_after_return, align 4
; ALWAYS-NEXT: [[TMP1:%.*]] = icmp ne i32 [[TMP0]], 0
; ALWAYS-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP4:%.*]]
; ALWAYS: 2:
; ALWAYS-NEXT: [[TMP3:%.*]] = call i64 @__asan_stack_malloc_1(i64 96)
; ALWAYS-NEXT: br label [[TMP4]]
; ALWAYS: 4:
; ALWAYS-NEXT: [[TMP5:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[TMP3]], [[TMP2]] ]
; ALWAYS-NEXT: [[TMP6:%.*]] = icmp eq i64 [[TMP5]], 0
; ALWAYS-NEXT: br i1 [[TMP6]], label [[TMP7:%.*]], label [[TMP9:%.*]]
; ALWAYS: 7:
; ALWAYS-NEXT: [[MYALLOCA:%.*]] = alloca i8, i64 96, align 32
; ALWAYS-NEXT: [[TMP8:%.*]] = ptrtoint i8* [[MYALLOCA]] to i64
; ALWAYS-NEXT: br label [[TMP9]]
; ALWAYS: 9:
; ALWAYS-NEXT: [[TMP10:%.*]] = phi i64 [ [[TMP5]], [[TMP4]] ], [ [[TMP8]], [[TMP7]] ]
; ALWAYS-NEXT: store i64 [[TMP10]], i64* [[ASAN_LOCAL_STACK_BASE]], align 8
; ALWAYS-NEXT: [[TMP11:%.*]] = add i64 [[TMP10]], 32
; ALWAYS-NEXT: [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to [20 x i8]*
; ALWAYS-NEXT: [[TMP13:%.*]] = inttoptr i64 [[TMP10]] to i64*
; ALWAYS-NEXT: store i64 1102416563, i64* [[TMP13]], align 8
; ALWAYS-NEXT: [[TMP14:%.*]] = add i64 [[TMP10]], 8
; ALWAYS-NEXT: [[TMP15:%.*]] = inttoptr i64 [[TMP14]] to i64*
; ALWAYS-NEXT: store i64 ptrtoint ([12 x i8]* @___asan_gen_ to i64), i64* [[TMP15]], align 8
; ALWAYS-NEXT: [[TMP16:%.*]] = add i64 [[TMP10]], 16
; ALWAYS-NEXT: [[TMP17:%.*]] = inttoptr i64 [[TMP16]] to i64*
; ALWAYS-NEXT: store i64 ptrtoint (void ()* @Simple to i64), i64* [[TMP17]], align 8
; ALWAYS-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP10]], 3
; ALWAYS-NEXT: [[TMP19:%.*]] = add i64 [[TMP18]], 2147450880
; ALWAYS-NEXT: [[TMP20:%.*]] = add i64 [[TMP19]], 0
; ALWAYS-NEXT: [[TMP21:%.*]] = inttoptr i64 [[TMP20]] to i64*
; ALWAYS-NEXT: store i64 -935622818527055375, i64* [[TMP21]], align 1
; ALWAYS-NEXT: [[TMP22:%.*]] = add i64 [[TMP19]], 8
; ALWAYS-NEXT: [[TMP23:%.*]] = inttoptr i64 [[TMP22]] to i32*
; ALWAYS-NEXT: store i32 -202116109, i32* [[TMP23]], align 1
; ALWAYS-NEXT: [[XX:%.*]] = getelementptr inbounds [20 x i8], [20 x i8]* [[TMP12]], i64 0, i64 0
; ALWAYS-NEXT: call void @Foo(i8* [[XX]])
; ALWAYS-NEXT: store i64 1172321806, i64* [[TMP13]], align 8
; ALWAYS-NEXT: [[TMP24:%.*]] = icmp ne i64 [[TMP5]], 0
; ALWAYS-NEXT: br i1 [[TMP24]], label [[TMP25:%.*]], label [[TMP34:%.*]]
; ALWAYS: 25:
; ALWAYS-NEXT: [[TMP26:%.*]] = add i64 [[TMP19]], 0
; ALWAYS-NEXT: [[TMP27:%.*]] = inttoptr i64 [[TMP26]] to i64*
; ALWAYS-NEXT: store i64 -723401728380766731, i64* [[TMP27]], align 1
; ALWAYS-NEXT: [[TMP28:%.*]] = add i64 [[TMP19]], 8
; ALWAYS-NEXT: [[TMP29:%.*]] = inttoptr i64 [[TMP28]] to i64*
; ALWAYS-NEXT: store i64 -723401728380766731, i64* [[TMP29]], align 1
; ALWAYS-NEXT: [[TMP30:%.*]] = add i64 [[TMP5]], 120
; ALWAYS-NEXT: [[TMP31:%.*]] = inttoptr i64 [[TMP30]] to i64*
; ALWAYS-NEXT: [[TMP32:%.*]] = load i64, i64* [[TMP31]], align 8
; ALWAYS-NEXT: [[TMP33:%.*]] = inttoptr i64 [[TMP32]] to i8*
; ALWAYS-NEXT: store i8 0, i8* [[TMP33]], align 1
; ALWAYS-NEXT: br label [[TMP39:%.*]]
; ALWAYS: 34:
; ALWAYS-NEXT: [[TMP35:%.*]] = add i64 [[TMP19]], 0
; ALWAYS-NEXT: [[TMP36:%.*]] = inttoptr i64 [[TMP35]] to i64*
; ALWAYS-NEXT: store i64 0, i64* [[TMP36]], align 1
; ALWAYS-NEXT: [[TMP37:%.*]] = add i64 [[TMP19]], 8
; ALWAYS-NEXT: [[TMP38:%.*]] = inttoptr i64 [[TMP37]] to i32*
; ALWAYS-NEXT: store i32 0, i32* [[TMP38]], align 1
; ALWAYS-NEXT: br label [[TMP39]]
; ALWAYS: 39:
; ALWAYS-NEXT: ret void
;
entry:
%x = alloca [20 x i8], align 16
%xx = getelementptr inbounds [20 x i8], [20 x i8]* %x, i64 0, i64 0
call void @Foo(i8* %xx)
ret void
}
define void @Huge() uwtable sanitize_address {
; CHECK-LABEL: @Huge(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[MYALLOCA:%.*]] = alloca i8, i64 100288, align 32
; CHECK-NEXT: [[TMP0:%.*]] = ptrtoint i8* [[MYALLOCA]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], 32
; CHECK-NEXT: [[TMP2:%.*]] = inttoptr i64 [[TMP1]] to [100000 x i8]*
; CHECK-NEXT: [[TMP3:%.*]] = inttoptr i64 [[TMP0]] to i64*
; CHECK-NEXT: store i64 1102416563, i64* [[TMP3]], align 8
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[TMP0]], 8
; CHECK-NEXT: [[TMP5:%.*]] = inttoptr i64 [[TMP4]] to i64*
; CHECK-NEXT: store i64 ptrtoint ([16 x i8]* @___asan_gen_.1 to i64), i64* [[TMP5]], align 8
; CHECK-NEXT: [[TMP6:%.*]] = add i64 [[TMP0]], 16
; CHECK-NEXT: [[TMP7:%.*]] = inttoptr i64 [[TMP6]] to i64*
; CHECK-NEXT: store i64 ptrtoint (void ()* @Huge to i64), i64* [[TMP7]], align 8
; CHECK-NEXT: [[TMP8:%.*]] = lshr i64 [[TMP0]], 3
; CHECK-NEXT: [[TMP9:%.*]] = add i64 [[TMP8]], 2147450880
; CHECK-NEXT: [[TMP10:%.*]] = add i64 [[TMP9]], 0
; CHECK-NEXT: [[TMP11:%.*]] = inttoptr i64 [[TMP10]] to i32*
; CHECK-NEXT: store i32 -235802127, i32* [[TMP11]], align 1
; CHECK-NEXT: [[TMP12:%.*]] = add i64 [[TMP9]], 12504
; CHECK-NEXT: [[TMP13:%.*]] = inttoptr i64 [[TMP12]] to i64*
; CHECK-NEXT: store i64 -868082074056920077, i64* [[TMP13]], align 1
; CHECK-NEXT: [[TMP14:%.*]] = add i64 [[TMP9]], 12512
; CHECK-NEXT: [[TMP15:%.*]] = inttoptr i64 [[TMP14]] to i64*
; CHECK-NEXT: store i64 -868082074056920077, i64* [[TMP15]], align 1
; CHECK-NEXT: [[TMP16:%.*]] = add i64 [[TMP9]], 12520
; CHECK-NEXT: [[TMP17:%.*]] = inttoptr i64 [[TMP16]] to i64*
; CHECK-NEXT: store i64 -868082074056920077, i64* [[TMP17]], align 1
; CHECK-NEXT: [[TMP18:%.*]] = add i64 [[TMP9]], 12528
; CHECK-NEXT: [[TMP19:%.*]] = inttoptr i64 [[TMP18]] to i64*
; CHECK-NEXT: store i64 -868082074056920077, i64* [[TMP19]], align 1
; CHECK-NEXT: [[XX:%.*]] = getelementptr inbounds [100000 x i8], [100000 x i8]* [[TMP2]], i64 0, i64 0
; CHECK-NEXT: call void @Foo(i8* [[XX]])
; CHECK-NEXT: store i64 1172321806, i64* [[TMP3]], align 8
; CHECK-NEXT: [[TMP20:%.*]] = add i64 [[TMP9]], 0
; CHECK-NEXT: [[TMP21:%.*]] = inttoptr i64 [[TMP20]] to i32*
; CHECK-NEXT: store i32 0, i32* [[TMP21]], align 1
; CHECK-NEXT: [[TMP22:%.*]] = add i64 [[TMP9]], 12504
; CHECK-NEXT: [[TMP23:%.*]] = inttoptr i64 [[TMP22]] to i64*
; CHECK-NEXT: store i64 0, i64* [[TMP23]], align 1
; CHECK-NEXT: [[TMP24:%.*]] = add i64 [[TMP9]], 12512
; CHECK-NEXT: [[TMP25:%.*]] = inttoptr i64 [[TMP24]] to i64*
; CHECK-NEXT: store i64 0, i64* [[TMP25]], align 1
; CHECK-NEXT: [[TMP26:%.*]] = add i64 [[TMP9]], 12520
; CHECK-NEXT: [[TMP27:%.*]] = inttoptr i64 [[TMP26]] to i64*
; CHECK-NEXT: store i64 0, i64* [[TMP27]], align 1
; CHECK-NEXT: [[TMP28:%.*]] = add i64 [[TMP9]], 12528
; CHECK-NEXT: [[TMP29:%.*]] = inttoptr i64 [[TMP28]] to i64*
; CHECK-NEXT: store i64 0, i64* [[TMP29]], align 1
; CHECK-NEXT: ret void
;
entry:
%x = alloca [100000 x i8], align 16
%xx = getelementptr inbounds [100000 x i8], [100000 x i8]* %x, i64 0, i64 0
call void @Foo(i8* %xx)
ret void
}