[llvm] b114055 - [asan] Add autogenerated test for fake stack
Vitaly Buka via llvm-commits
llvm-commits at lists.llvm.org
Thu May 20 15:48:26 PDT 2021
Author: Vitaly Buka
Date: 2021-05-20T15:48:16-07:00
New Revision: b1140554e1b29f21b0d3657ce0700fa1726646ed
URL: https://github.com/llvm/llvm-project/commit/b1140554e1b29f21b0d3657ce0700fa1726646ed
DIFF: https://github.com/llvm/llvm-project/commit/b1140554e1b29f21b0d3657ce0700fa1726646ed.diff
LOG: [asan] Add autogenerated test for fake stack
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
Differential Revision: https://reviews.llvm.org/D102867
Added:
llvm/test/Instrumentation/AddressSanitizer/fake-stack.ll
Modified:
Removed:
################################################################################
diff --git a/llvm/test/Instrumentation/AddressSanitizer/fake-stack.ll b/llvm/test/Instrumentation/AddressSanitizer/fake-stack.ll
new file mode 100644
index 0000000000000..0dbbe297ac19b
--- /dev/null
+++ b/llvm/test/Instrumentation/AddressSanitizer/fake-stack.ll
@@ -0,0 +1,224 @@
+; 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: Replace 1->2 in D102462.
+; 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 64, align 32
+; NEVER-NEXT: [[TMP0:%.*]] = ptrtoint i8* [[MYALLOCA]] to i64
+; NEVER-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], 32
+; NEVER-NEXT: [[TMP2:%.*]] = inttoptr i64 [[TMP1]] to 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 ([11 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 -868083113472691727, i64* [[TMP11]], align 1
+; NEVER-NEXT: call void @Foo(i8* [[TMP2]])
+; NEVER-NEXT: store i64 1172321806, i64* [[TMP3]], align 8
+; NEVER-NEXT: [[TMP12:%.*]] = add i64 [[TMP9]], 0
+; NEVER-NEXT: [[TMP13:%.*]] = inttoptr i64 [[TMP12]] to i64*
+; NEVER-NEXT: store i64 0, i64* [[TMP13]], 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_0(i64 64)
+; 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 64, 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 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 ([11 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 -868083113472691727, i64* [[TMP21]], align 1
+; RUNTIME-NEXT: call void @Foo(i8* [[TMP12]])
+; RUNTIME-NEXT: store i64 1172321806, i64* [[TMP13]], align 8
+; RUNTIME-NEXT: [[TMP22:%.*]] = icmp ne i64 [[TMP5]], 0
+; RUNTIME-NEXT: br i1 [[TMP22]], label [[TMP23:%.*]], label [[TMP30:%.*]]
+; RUNTIME: 23:
+; RUNTIME-NEXT: [[TMP24:%.*]] = add i64 [[TMP19]], 0
+; RUNTIME-NEXT: [[TMP25:%.*]] = inttoptr i64 [[TMP24]] to i64*
+; RUNTIME-NEXT: store i64 -723401728380766731, i64* [[TMP25]], align 1
+; RUNTIME-NEXT: [[TMP26:%.*]] = add i64 [[TMP5]], 56
+; RUNTIME-NEXT: [[TMP27:%.*]] = inttoptr i64 [[TMP26]] to i64*
+; RUNTIME-NEXT: [[TMP28:%.*]] = load i64, i64* [[TMP27]], align 8
+; RUNTIME-NEXT: [[TMP29:%.*]] = inttoptr i64 [[TMP28]] to i8*
+; RUNTIME-NEXT: store i8 0, i8* [[TMP29]], align 1
+; RUNTIME-NEXT: br label [[TMP33:%.*]]
+; RUNTIME: 30:
+; RUNTIME-NEXT: [[TMP31:%.*]] = add i64 [[TMP19]], 0
+; RUNTIME-NEXT: [[TMP32:%.*]] = inttoptr i64 [[TMP31]] to i64*
+; RUNTIME-NEXT: store i64 0, i64* [[TMP32]], align 1
+; RUNTIME-NEXT: br label [[TMP33]]
+; RUNTIME: 33:
+; 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_0(i64 64)
+; 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 64, 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 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 ([11 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 -868083113472691727, i64* [[TMP21]], align 1
+; ALWAYS-NEXT: call void @Foo(i8* [[TMP12]])
+; ALWAYS-NEXT: store i64 1172321806, i64* [[TMP13]], align 8
+; ALWAYS-NEXT: [[TMP22:%.*]] = icmp ne i64 [[TMP5]], 0
+; ALWAYS-NEXT: br i1 [[TMP22]], label [[TMP23:%.*]], label [[TMP30:%.*]]
+; ALWAYS: 23:
+; ALWAYS-NEXT: [[TMP24:%.*]] = add i64 [[TMP19]], 0
+; ALWAYS-NEXT: [[TMP25:%.*]] = inttoptr i64 [[TMP24]] to i64*
+; ALWAYS-NEXT: store i64 -723401728380766731, i64* [[TMP25]], align 1
+; ALWAYS-NEXT: [[TMP26:%.*]] = add i64 [[TMP5]], 56
+; ALWAYS-NEXT: [[TMP27:%.*]] = inttoptr i64 [[TMP26]] to i64*
+; ALWAYS-NEXT: [[TMP28:%.*]] = load i64, i64* [[TMP27]], align 8
+; ALWAYS-NEXT: [[TMP29:%.*]] = inttoptr i64 [[TMP28]] to i8*
+; ALWAYS-NEXT: store i8 0, i8* [[TMP29]], align 1
+; ALWAYS-NEXT: br label [[TMP33:%.*]]
+; ALWAYS: 30:
+; ALWAYS-NEXT: [[TMP31:%.*]] = add i64 [[TMP19]], 0
+; ALWAYS-NEXT: [[TMP32:%.*]] = inttoptr i64 [[TMP31]] to i64*
+; ALWAYS-NEXT: store i64 0, i64* [[TMP32]], align 1
+; ALWAYS-NEXT: br label [[TMP33]]
+; ALWAYS: 33:
+; ALWAYS-NEXT: ret void
+;
+entry:
+ %x = alloca i8, align 16
+ call void @Foo(i8* %x)
+ 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
+}
More information about the llvm-commits
mailing list