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
| ; Verify that a ud2 is generated after the call to __stack_chk_fail.
; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=false -O0 -o - | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=false -O2 -o - | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=true -O0 -o - | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=true -O2 -o - | FileCheck %s
; CHECK: check_input:
; CHECK: callq __stack_chk_fail
; CHECK-NEXT: ud2
; CHECK: .size check_input
; CHECK-NEXT: .cfi_endproc
@.str = private unnamed_addr constant [37 x i8] c"????????????????????????????????????\00", align 1
define signext i8 @check_input(i8* %input) nounwind uwtable ssp {
entry:
%input.addr = alloca i8*, align 8
%buf = alloca [16 x i8], align 16
store i8* %input, i8** %input.addr, align 8
%arraydecay = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0
%0 = load i8*, i8** %input.addr, align 8
%call = call i8* @strcpy(i8* %arraydecay, i8* %0) nounwind
%arrayidx = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i64 0
%1 = load i8, i8* %arrayidx, align 1
ret i8 %1
}
declare i8* @strcpy(i8*, i8*) nounwind
define i32 @main() nounwind uwtable ssp {
entry:
%retval = alloca i32, align 4
store i32 0, i32* %retval
%call = call signext i8 @check_input(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i32 0, i32 0))
%conv = sext i8 %call to i32
ret i32 %conv
}
|