216 lines
12 KiB
LLVM
216 lines
12 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; Test alloca instrumentation.
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;
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; RUN: opt < %s -passes=hwasan -hwasan-use-stack-safety=0 -S | FileCheck %s
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; RUN: opt < %s -passes=hwasan -hwasan-use-stack-safety=0 -hwasan-instrument-with-calls=0 -S | FileCheck %s --check-prefixes=INLINE
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @use32(ptr)
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define void @test_alloca() sanitize_hwaddress {
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; CHECK-LABEL: define void @test_alloca
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; CHECK-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null)
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; CHECK-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
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; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
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; CHECK-NEXT: [[TMP3:%.*]] = xor i64 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = and i64 [[TMP3]], 63
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; CHECK-NEXT: [[TMP4:%.*]] = lshr i64 [[TMP1]], 57
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; CHECK-NEXT: [[HWASAN_UAR_TAG:%.*]] = and i64 [[TMP4]], 63
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; CHECK-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
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; CHECK-NEXT: [[TMP5:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0
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; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[X]] to i64
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; CHECK-NEXT: [[TMP7:%.*]] = and i64 [[TMP6]], -9079256848778919937
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; CHECK-NEXT: [[TMP8:%.*]] = shl i64 [[TMP5]], 57
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; CHECK-NEXT: [[TMP9:%.*]] = or i64 [[TMP7]], [[TMP8]]
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; CHECK-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP9]] to ptr
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; CHECK-NEXT: [[TMP10:%.*]] = trunc i64 [[TMP5]] to i8
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; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[X]], i8 [[TMP10]], i64 16)
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; CHECK-NEXT: call void @use32(ptr nonnull [[X_HWASAN]])
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; CHECK-NEXT: [[TMP11:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8
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; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[X]], i8 [[TMP11]], i64 16)
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; CHECK-NEXT: ret void
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;
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; INLINE-LABEL: define void @test_alloca
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; INLINE-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk {
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; INLINE-NEXT: entry:
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; INLINE-NEXT: [[TMP0:%.*]] = load i64, ptr @__hwasan_tls, align 8
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; INLINE-NEXT: [[TMP1:%.*]] = and i64 [[TMP0]], -9079256848778919937
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; INLINE-NEXT: [[TMP2:%.*]] = ashr i64 [[TMP0]], 3
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; INLINE-NEXT: [[TMP3:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
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; INLINE-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP3]] to i64
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; INLINE-NEXT: [[TMP5:%.*]] = shl i64 [[TMP4]], 44
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; INLINE-NEXT: [[TMP6:%.*]] = or i64 ptrtoint (ptr @test_alloca to i64), [[TMP5]]
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; INLINE-NEXT: [[TMP7:%.*]] = inttoptr i64 [[TMP1]] to ptr
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; INLINE-NEXT: store i64 [[TMP6]], ptr [[TMP7]], align 8
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; INLINE-NEXT: [[TMP8:%.*]] = ashr i64 [[TMP0]], 56
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; INLINE-NEXT: [[TMP9:%.*]] = shl nuw nsw i64 [[TMP8]], 12
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; INLINE-NEXT: [[TMP10:%.*]] = xor i64 [[TMP9]], -1
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; INLINE-NEXT: [[TMP11:%.*]] = add i64 [[TMP0]], 8
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; INLINE-NEXT: [[TMP12:%.*]] = and i64 [[TMP11]], [[TMP10]]
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; INLINE-NEXT: store i64 [[TMP12]], ptr @__hwasan_tls, align 8
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; INLINE-NEXT: [[TMP13:%.*]] = or i64 [[TMP1]], 4294967295
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; INLINE-NEXT: [[HWASAN_SHADOW:%.*]] = add i64 [[TMP13]], 1
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; INLINE-NEXT: [[TMP14:%.*]] = inttoptr i64 [[HWASAN_SHADOW]] to ptr
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; INLINE-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP4]], 57
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; INLINE-NEXT: [[HWASAN_UAR_TAG:%.*]] = and i64 [[TMP15]], 63
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; INLINE-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16
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; INLINE-NEXT: [[TMP16:%.*]] = xor i64 [[TMP2]], 0
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; INLINE-NEXT: [[TMP17:%.*]] = ptrtoint ptr [[X]] to i64
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; INLINE-NEXT: [[TMP18:%.*]] = and i64 [[TMP17]], -9079256848778919937
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; INLINE-NEXT: [[TMP19:%.*]] = shl i64 [[TMP16]], 57
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; INLINE-NEXT: [[TMP20:%.*]] = or i64 [[TMP18]], [[TMP19]]
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; INLINE-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP20]] to ptr
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; INLINE-NEXT: [[TMP21:%.*]] = trunc i64 [[TMP16]] to i8
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; INLINE-NEXT: [[TMP22:%.*]] = ptrtoint ptr [[X]] to i64
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; INLINE-NEXT: [[TMP23:%.*]] = and i64 [[TMP22]], -9079256848778919937
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; INLINE-NEXT: [[TMP24:%.*]] = lshr i64 [[TMP23]], 4
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; INLINE-NEXT: [[TMP25:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP24]]
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; INLINE-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[TMP25]], i32 0
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; INLINE-NEXT: store i8 4, ptr [[TMP26]], align 1
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; INLINE-NEXT: [[TMP27:%.*]] = getelementptr i8, ptr [[X]], i32 15
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; INLINE-NEXT: store i8 [[TMP21]], ptr [[TMP27]], align 1
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; INLINE-NEXT: call void @use32(ptr nonnull [[X_HWASAN]])
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; INLINE-NEXT: [[TMP28:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8
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; INLINE-NEXT: [[TMP29:%.*]] = ptrtoint ptr [[X]] to i64
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; INLINE-NEXT: [[TMP30:%.*]] = and i64 [[TMP29]], -9079256848778919937
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; INLINE-NEXT: [[TMP31:%.*]] = lshr i64 [[TMP30]], 4
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; INLINE-NEXT: [[TMP32:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP31]]
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; INLINE-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP32]], i8 [[TMP28]], i64 1, i1 false)
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; INLINE-NEXT: ret void
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;
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entry:
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%x = alloca i32, align 4
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call void @use32(ptr nonnull %x)
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ret void
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}
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define i32 @test_simple(ptr %a) sanitize_hwaddress {
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; CHECK-LABEL: define i32 @test_simple
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; CHECK-SAME: (ptr [[A:%.*]]) #[[ATTR0]] personality ptr @__hwasan_personality_thunk {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null)
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; CHECK-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
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; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20
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; CHECK-NEXT: [[TMP3:%.*]] = xor i64 [[TMP1]], [[TMP2]]
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; CHECK-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = and i64 [[TMP3]], 63
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; CHECK-NEXT: [[TMP4:%.*]] = lshr i64 [[TMP1]], 57
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; CHECK-NEXT: [[HWASAN_UAR_TAG:%.*]] = and i64 [[TMP4]], 63
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; CHECK-NEXT: [[BUF_SROA_0:%.*]] = alloca { i8, [15 x i8] }, align 16
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; CHECK-NEXT: [[TMP5:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0
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; CHECK-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[BUF_SROA_0]] to i64
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; CHECK-NEXT: [[TMP7:%.*]] = and i64 [[TMP6]], -9079256848778919937
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; CHECK-NEXT: [[TMP8:%.*]] = shl i64 [[TMP5]], 57
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; CHECK-NEXT: [[TMP9:%.*]] = or i64 [[TMP7]], [[TMP8]]
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; CHECK-NEXT: [[BUF_SROA_0_HWASAN:%.*]] = inttoptr i64 [[TMP9]] to ptr
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 16, ptr nonnull [[BUF_SROA_0]])
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; CHECK-NEXT: [[TMP10:%.*]] = trunc i64 [[TMP5]] to i8
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; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[BUF_SROA_0]], i8 [[TMP10]], i64 16)
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; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[BUF_SROA_0_HWASAN]] to i64
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; CHECK-NEXT: call void @__hwasan_store1(i64 [[TMP11]])
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; CHECK-NEXT: store volatile i8 0, ptr [[BUF_SROA_0_HWASAN]], align 4
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; CHECK-NEXT: [[TMP12:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8
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; CHECK-NEXT: call void @__hwasan_tag_memory(ptr [[BUF_SROA_0]], i8 [[TMP12]], i64 16)
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 16, ptr nonnull [[BUF_SROA_0]])
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; CHECK-NEXT: ret i32 0
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;
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; INLINE-LABEL: define i32 @test_simple
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; INLINE-SAME: (ptr [[A:%.*]]) #[[ATTR0]] personality ptr @__hwasan_personality_thunk {
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; INLINE-NEXT: entry:
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; INLINE-NEXT: [[TMP0:%.*]] = load i64, ptr @__hwasan_tls, align 8
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; INLINE-NEXT: [[TMP1:%.*]] = and i64 [[TMP0]], -9079256848778919937
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; INLINE-NEXT: [[TMP2:%.*]] = ashr i64 [[TMP0]], 3
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; INLINE-NEXT: [[TMP3:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
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; INLINE-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP3]] to i64
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; INLINE-NEXT: [[TMP5:%.*]] = shl i64 [[TMP4]], 44
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; INLINE-NEXT: [[TMP6:%.*]] = or i64 ptrtoint (ptr @test_simple to i64), [[TMP5]]
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; INLINE-NEXT: [[TMP7:%.*]] = inttoptr i64 [[TMP1]] to ptr
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; INLINE-NEXT: store i64 [[TMP6]], ptr [[TMP7]], align 8
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; INLINE-NEXT: [[TMP8:%.*]] = ashr i64 [[TMP0]], 56
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; INLINE-NEXT: [[TMP9:%.*]] = shl nuw nsw i64 [[TMP8]], 12
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; INLINE-NEXT: [[TMP10:%.*]] = xor i64 [[TMP9]], -1
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; INLINE-NEXT: [[TMP11:%.*]] = add i64 [[TMP0]], 8
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; INLINE-NEXT: [[TMP12:%.*]] = and i64 [[TMP11]], [[TMP10]]
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; INLINE-NEXT: store i64 [[TMP12]], ptr @__hwasan_tls, align 8
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; INLINE-NEXT: [[TMP13:%.*]] = or i64 [[TMP1]], 4294967295
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; INLINE-NEXT: [[HWASAN_SHADOW:%.*]] = add i64 [[TMP13]], 1
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; INLINE-NEXT: [[TMP14:%.*]] = inttoptr i64 [[HWASAN_SHADOW]] to ptr
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; INLINE-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP4]], 57
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; INLINE-NEXT: [[HWASAN_UAR_TAG:%.*]] = and i64 [[TMP15]], 63
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; INLINE-NEXT: [[BUF_SROA_0:%.*]] = alloca { i8, [15 x i8] }, align 16
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; INLINE-NEXT: [[TMP16:%.*]] = xor i64 [[TMP2]], 0
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; INLINE-NEXT: [[TMP17:%.*]] = ptrtoint ptr [[BUF_SROA_0]] to i64
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; INLINE-NEXT: [[TMP18:%.*]] = and i64 [[TMP17]], -9079256848778919937
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; INLINE-NEXT: [[TMP19:%.*]] = shl i64 [[TMP16]], 57
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; INLINE-NEXT: [[TMP20:%.*]] = or i64 [[TMP18]], [[TMP19]]
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; INLINE-NEXT: [[BUF_SROA_0_HWASAN:%.*]] = inttoptr i64 [[TMP20]] to ptr
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; INLINE-NEXT: call void @llvm.lifetime.start.p0(i64 16, ptr nonnull [[BUF_SROA_0]])
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; INLINE-NEXT: [[TMP21:%.*]] = trunc i64 [[TMP16]] to i8
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; INLINE-NEXT: [[TMP22:%.*]] = ptrtoint ptr [[BUF_SROA_0]] to i64
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; INLINE-NEXT: [[TMP23:%.*]] = and i64 [[TMP22]], -9079256848778919937
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; INLINE-NEXT: [[TMP24:%.*]] = lshr i64 [[TMP23]], 4
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; INLINE-NEXT: [[TMP25:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP24]]
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; INLINE-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[TMP25]], i32 0
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; INLINE-NEXT: store i8 1, ptr [[TMP26]], align 1
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; INLINE-NEXT: [[TMP27:%.*]] = getelementptr i8, ptr [[BUF_SROA_0]], i32 15
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; INLINE-NEXT: store i8 [[TMP21]], ptr [[TMP27]], align 1
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; INLINE-NEXT: [[TMP28:%.*]] = ptrtoint ptr [[BUF_SROA_0_HWASAN]] to i64
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; INLINE-NEXT: [[TMP29:%.*]] = lshr i64 [[TMP28]], 57
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; INLINE-NEXT: [[TMP30:%.*]] = trunc i64 [[TMP29]] to i8
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; INLINE-NEXT: [[TMP31:%.*]] = and i64 [[TMP28]], -9079256848778919937
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; INLINE-NEXT: [[TMP32:%.*]] = lshr i64 [[TMP31]], 4
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; INLINE-NEXT: [[TMP33:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP32]]
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; INLINE-NEXT: [[TMP34:%.*]] = load i8, ptr [[TMP33]], align 1
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; INLINE-NEXT: [[TMP35:%.*]] = icmp ne i8 [[TMP30]], [[TMP34]]
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; INLINE-NEXT: br i1 [[TMP35]], label [[TMP36:%.*]], label [[TMP50:%.*]], !prof [[PROF1:![0-9]+]]
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; INLINE: 36:
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; INLINE-NEXT: [[TMP37:%.*]] = icmp ugt i8 [[TMP34]], 15
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; INLINE-NEXT: br i1 [[TMP37]], label [[TMP38:%.*]], label [[TMP39:%.*]], !prof [[PROF1]]
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; INLINE: 38:
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; INLINE-NEXT: call void asm sideeffect "int3\0Anopl 80([[RAX:%.*]])", "{rdi}"(i64 [[TMP28]])
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; INLINE-NEXT: unreachable
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; INLINE: 39:
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; INLINE-NEXT: [[TMP40:%.*]] = and i64 [[TMP28]], 15
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; INLINE-NEXT: [[TMP41:%.*]] = trunc i64 [[TMP40]] to i8
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; INLINE-NEXT: [[TMP42:%.*]] = add i8 [[TMP41]], 0
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; INLINE-NEXT: [[TMP43:%.*]] = icmp uge i8 [[TMP42]], [[TMP34]]
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; INLINE-NEXT: br i1 [[TMP43]], label [[TMP38]], label [[TMP44:%.*]], !prof [[PROF1]]
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; INLINE: 44:
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; INLINE-NEXT: [[TMP45:%.*]] = or i64 [[TMP31]], 15
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; INLINE-NEXT: [[TMP46:%.*]] = inttoptr i64 [[TMP45]] to ptr
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; INLINE-NEXT: [[TMP47:%.*]] = load i8, ptr [[TMP46]], align 1
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; INLINE-NEXT: [[TMP48:%.*]] = icmp ne i8 [[TMP30]], [[TMP47]]
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; INLINE-NEXT: br i1 [[TMP48]], label [[TMP38]], label [[TMP49:%.*]], !prof [[PROF1]]
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; INLINE: 49:
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; INLINE-NEXT: br label [[TMP50]]
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; INLINE: 50:
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; INLINE-NEXT: store volatile i8 0, ptr [[BUF_SROA_0_HWASAN]], align 4
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; INLINE-NEXT: [[TMP51:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8
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; INLINE-NEXT: [[TMP52:%.*]] = ptrtoint ptr [[BUF_SROA_0]] to i64
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; INLINE-NEXT: [[TMP53:%.*]] = and i64 [[TMP52]], -9079256848778919937
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; INLINE-NEXT: [[TMP54:%.*]] = lshr i64 [[TMP53]], 4
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; INLINE-NEXT: [[TMP55:%.*]] = getelementptr i8, ptr [[TMP14]], i64 [[TMP54]]
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; INLINE-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP55]], i8 [[TMP51]], i64 1, i1 false)
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; INLINE-NEXT: call void @llvm.lifetime.end.p0(i64 16, ptr nonnull [[BUF_SROA_0]])
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; INLINE-NEXT: ret i32 0
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;
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entry:
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%buf.sroa.0 = alloca i8, align 4
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call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %buf.sroa.0)
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store volatile i8 0, ptr %buf.sroa.0, align 4
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call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %buf.sroa.0)
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ret i32 0
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}
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; Function Attrs: argmemonly mustprogress nofree nosync nounwind willreturn
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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; Function Attrs: argmemonly mustprogress nofree nosync nounwind willreturn
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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