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
|
; This test checks that non-instrumented allocas stay in the first basic block.
; Only first-basic-block allocas are considered stack slots, and moving them
; breaks debug info.
; RUN: opt < %s -passes='asan-pipeline' -S | FileCheck %s
; RUN: opt < %s -passes='asan-pipeline' -asan-instrument-dynamic-allocas -S | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10.0"
define i32 @foo() sanitize_address {
entry:
; Won't be instrumented because of asan-skip-promotable-allocas.
%non_instrumented1 = alloca i32, align 4
; Regular alloca, will get instrumented (forced by the ptrtoint below).
%instrumented = alloca i32, align 4
; Won't be instrumented because of asan-skip-promotable-allocas.
%non_instrumented2 = alloca i32, align 4
br label %bb0
bb0:
; Won't be instrumented because of asan-skip-promotable-allocas.
%non_instrumented3 = alloca i32, align 4
%ptr = ptrtoint i32* %instrumented to i32
br label %bb1
bb1:
ret i32 %ptr
}
; CHECK: entry:
; CHECK: %non_instrumented1 = alloca i32, align 4
; CHECK: %non_instrumented2 = alloca i32, align 4
; CHECK: load i32, i32* @__asan_option_detect_stack_use_after_return
; CHECK: bb0:
; CHECK: %non_instrumented3 = alloca i32, align 4
|
