; Regular stack poisoning.
; RUN: opt < %s -passes=asan -asan-use-after-scope=0 -S | FileCheck --check-prefixes=CHECK,ENTRY,EXIT %s
; Stack poisoning with stack-use-after-scope.
; RUN: opt < %s -passes=asan -asan-use-after-scope=1 -S | FileCheck --check-prefixes=CHECK,ENTRY-UAS,EXIT-UAS %s
target datalayout = "e-i64:64-f80:128-s:64-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @Foo(ptr)
define void @Bar() uwtable sanitize_address {
entry:
%x = alloca [650 x i8], align 16
%xx = getelementptr inbounds [650 x i8], ptr %x, i64 0, i64 0
%y = alloca [13 x i8], align 1
%yy = getelementptr inbounds [13 x i8], ptr %y, i64 0, i64 0
%z = alloca [40 x i8], align 1
%zz = getelementptr inbounds [40 x i8], ptr %z, i64 0, i64 0
; CHECK: [[SHADOW_BASE:%[0-9]+]] = add i64 %{{[0-9]+}}, 2147450880
; F1F1F1F1
; ENTRY-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
; ENTRY-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-NEXT: store i32 -235802127, ptr [[PTR]], align 1
; 02F2F2F2F2F2F2F2
; ENTRY-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 85
; ENTRY-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-NEXT: store i64 -940422246894996990, ptr [[PTR]], align 1
; F2F2F2F2F2F2F2F2
; ENTRY-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 93
; ENTRY-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-NEXT: store i64 -940422246894996750, ptr [[PTR]], align 1
; F20005F2F2000000
; ENTRY-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 101
; ENTRY-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-NEXT: store i64 1043442499826, ptr [[PTR]], align 1
; F3F3F3F3
; ENTRY-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 111
; ENTRY-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-NEXT: store i32 -202116109, ptr [[PTR]], align 1
; F3
; ENTRY-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 115
; ENTRY-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-NEXT: store i8 -13, ptr [[PTR]], align 1
; F1F1F1F1
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i32 -235802127, ptr [[PTR]], align 1
; F8F8F8...
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 4
; ENTRY-UAS-NEXT: call void @__asan_set_shadow_f8(i64 [[OFFSET]], i64 82)
; F2F2F2F2F2F2F2F2
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 86
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i64 -940422246894996750, ptr [[PTR]], align 1
; F2F2F2F2F2F2F2F2
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 94
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i64 -940422246894996750, ptr [[PTR]], align 1
; F8F8F2F2F8F8F8F8
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 102
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i64 -506381209967593224, ptr [[PTR]], align 1
; F8F3F3F3
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 110
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i32 -202116104, ptr [[PTR]], align 1
; F3F3
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 114
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i16 -3085, ptr [[PTR]], align 1
; CHECK-LABEL: %xx = getelementptr inbounds
; CHECK-NEXT: %yy = getelementptr inbounds
; CHECK-NEXT: %zz = getelementptr inbounds
call void @llvm.lifetime.start.p0(i64 650, ptr %xx)
; 0000...
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 4
; ENTRY-UAS-NEXT: call void @__asan_set_shadow_00(i64 [[OFFSET]], i64 81)
; 02
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 85
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i8 2, ptr [[PTR]], align 1
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 650, ptr %xx)
call void @Foo(ptr %xx)
; CHECK-NEXT: call void @Foo(ptr %xx)
call void @llvm.lifetime.end.p0(i64 650, ptr %xx)
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 4
; ENTRY-UAS-NEXT: call void @__asan_set_shadow_f8(i64 [[OFFSET]], i64 82)
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 650, ptr %xx)
call void @llvm.lifetime.start.p0(i64 13, ptr %yy)
; 0005
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 102
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i16 1280, ptr [[PTR]], align 1
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 13, ptr %yy)
call void @Foo(ptr %yy)
; CHECK-NEXT: call void @Foo(ptr %yy)
call void @llvm.lifetime.end.p0(i64 13, ptr %yy)
; F8F8
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 102
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i16 -1800, ptr [[PTR]], align 1
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 13, ptr %yy)
call void @llvm.lifetime.start.p0(i64 40, ptr %zz)
; 00000000
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 106
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i32 0, ptr [[PTR]], align 1
; 00
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 110
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i8 0, ptr [[PTR]], align 1
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 40, ptr %zz)
call void @Foo(ptr %zz)
; CHECK-NEXT: call void @Foo(ptr %zz)
call void @llvm.lifetime.end.p0(i64 40, ptr %zz)
; F8F8F8F8
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 106
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i32 -117901064, ptr [[PTR]], align 1
; F8
; ENTRY-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 110
; ENTRY-UAS-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; ENTRY-UAS-NEXT: store i8 -8, ptr [[PTR]], align 1
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 40, ptr %zz)
; CHECK: {{^[0-9]+}}:
; CHECK-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
; CHECK-NEXT: call void @__asan_set_shadow_f5(i64 [[OFFSET]], i64 128)
; CHECK-NOT: add i64 [[SHADOW_BASE]]
; CHECK: {{^[0-9]+}}:
; 00000000
; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
; EXIT-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; EXIT-NEXT: store i32 0, ptr [[PTR]], align 1
; 0000000000000000
; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 85
; EXIT-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; EXIT-NEXT: store i64 0, ptr [[PTR]], align 1
; 0000000000000000
; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 93
; EXIT-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; EXIT-NEXT: store i64 0, ptr [[PTR]], align 1
; 0000000000000000
; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 101
; EXIT-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; EXIT-NEXT: store i64 0, ptr [[PTR]], align 1
; 00000000
; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 111
; EXIT-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; EXIT-NEXT: store i32 0, ptr [[PTR]], align 1
; 00
; EXIT-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 115
; EXIT-NEXT: [[PTR:%[0-9]+]] = inttoptr i64 [[OFFSET]] to ptr
; EXIT-NEXT: store i8 0, ptr [[PTR]], align 1
; 0000...
; EXIT-UAS-NEXT: [[OFFSET:%[0-9]+]] = add i64 [[SHADOW_BASE]], 0
; EXIT-UAS-NEXT: call void @__asan_set_shadow_00(i64 [[OFFSET]], i64 116)
; CHECK-NOT: add i64 [[SHADOW_BASE]]
ret void
; CHECK: {{^[0-9]+}}:
; CHECK: ret void
}
declare void @foo(ptr)
define void @PR41481(i1 %b) sanitize_address {
; CHECK-LABEL: @PR41481
entry:
%p1 = alloca i32
%p2 = alloca i32
br label %bb1
; Since we cannot account for all lifetime intrinsics in this function, we
; might have missed a lifetime.start one and therefore shouldn't poison the
; allocas at function entry.
; ENTRY: store i64 -935356719533264399
; ENTRY-UAS: store i64 -935356719533264399
bb1:
%p = select i1 %b, ptr %p1, ptr %p2
%q = select i1 %b, ptr %p1, ptr %p2
call void @llvm.lifetime.start.p0(i64 4, ptr %q)
call void @foo(ptr %p)
br i1 %b, label %bb2, label %bb3
bb2:
call void @llvm.lifetime.end.p0(i64 4, ptr %p1)
br label %end
bb3:
call void @llvm.lifetime.end.p0(i64 4, ptr %p2)
br label %end
end:
ret void
}
declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
; CHECK-ON: declare void @__asan_set_shadow_00(i64, i64)
; CHECK-ON: declare void @__asan_set_shadow_f1(i64, i64)
; CHECK-ON: declare void @__asan_set_shadow_f2(i64, i64)
; CHECK-ON: declare void @__asan_set_shadow_f3(i64, i64)
; CHECK-ON: declare void @__asan_set_shadow_f5(i64, i64)
; CHECK-ON: declare void @__asan_set_shadow_f8(i64, i64)
; CHECK-OFF-NOT: declare void @__asan_set_shadow_
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