1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
| ; Test -sanitizer-coverage-trace-compares=1
; RUN: opt < %s -sancov -sanitizer-coverage-level=1 -sanitizer-coverage-trace-compares=1 -S | FileCheck %s
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 -sanitizer-coverage-trace-compares=1 -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"
define i32 @foo(i32 %a, i32 %b) #0 {
entry:
; compare (non-const, non-const)
%cmp = icmp slt i32 %a, %b
; CHECK: call void @__sanitizer_cov_trace_cmp4
; CHECK-NEXT: icmp slt i32 %a, %b
; compare (const, non-const)
icmp slt i32 %a, 1
; CHECK: call void @__sanitizer_cov_trace_const_cmp4(i32 1, i32 %a)
; CHECK-NEXT: icmp slt i32 %a, 1
; compare (non-const, const)
icmp slt i32 1, %a
; CHECK: call void @__sanitizer_cov_trace_const_cmp4(i32 1, i32 %a)
; CHECK-NEXT: icmp slt i32 1, %a
; compare (const, const) - should not be instrumented
icmp slt i32 1, 0
; CHECK-NOT: call void @__sanitizer_cov_trace
; CHECK icmp slt i32 1, 0
; compare variables of byte size
%x = trunc i32 %a to i8
icmp slt i8 %x, 1
; CHECK: call void @__sanitizer_cov_trace_const_cmp1(i8 1, i8 %x)
; CHECK-NEXT: icmp slt i8 %x, 1
icmp slt i8 1, %x
; CHECK: call void @__sanitizer_cov_trace_const_cmp1(i8 1, i8 %x)
; CHECK-NEXT: icmp slt i8 1, %x
; compare variables of word size
%y = trunc i32 %a to i16
icmp slt i16 %y, 1
; CHECK: call void @__sanitizer_cov_trace_const_cmp2(i16 1, i16 %y)
; CHECK-NEXT: icmp slt i16 %y, 1
icmp slt i16 1, %y
; CHECK: call void @__sanitizer_cov_trace_const_cmp2(i16 1, i16 %y)
; CHECK-NEXT: icmp slt i16 1, %y
; compare variables of qword size
%z = zext i32 %a to i64
icmp slt i64 %z, 1
; CHECK: call void @__sanitizer_cov_trace_const_cmp8(i64 1, i64 %z)
; CHECK-NEXT: icmp slt i64 %z, 1
icmp slt i64 1, %z
; CHECK: call void @__sanitizer_cov_trace_const_cmp8(i64 1, i64 %z)
; CHECK-NEXT: icmp slt i64 1, %z
%conv = zext i1 %cmp to i32
ret i32 %conv
}
|