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
|
; Check that the __stack_chk_guard was placed in small data.
; RUN: llc -march=hexagon -mtriple=hexagon-unknown-linux-gnu -O2 -hexagon-small-data-threshold=4 < %s | FileCheck -check-prefix=GPREL %s
; GPREL: memw(gp+#__stack_chk_guard)
; For threshold less than 4 (size of address), the variable is not placed in small-data
; RUN: llc -march=hexagon -mtriple=hexagon-unknown-linux-gnu -O2 -hexagon-small-data-threshold=0 < %s | FileCheck -check-prefix=ABS %s
; ABS: memw(##__stack_chk_guard)
@g0 = private unnamed_addr constant [37 x i8] c"This string is longer than 16 bytes\0A\00", align 1
@g1 = private unnamed_addr constant [15 x i8] c"\0AChar 20 = %c\0A\00", align 1
; Function Attrs: noinline nounwind ssp
define zeroext i8 @f0(i32 %a0) #0 {
b0:
%v0 = alloca i32, align 4
%v1 = alloca [64 x i8], align 8
%v2 = alloca ptr, align 4
store i32 %a0, ptr %v0, align 4
store ptr @g0, ptr %v2, align 4
%v4 = load ptr, ptr %v2, align 4
%v5 = call ptr @f1(ptr %v1, ptr %v4) #2
%v6 = load i32, ptr %v0, align 4
%v7 = getelementptr inbounds [64 x i8], ptr %v1, i32 0, i32 %v6
%v8 = load i8, ptr %v7, align 1
ret i8 %v8
}
; Function Attrs: nounwind
declare ptr @f1(ptr, ptr) #1
; Function Attrs: noinline nounwind ssp
define i32 @f2(i32 %a0, ptr %a1) #0 {
b0:
%v0 = alloca i32, align 4
%v1 = alloca i32, align 4
%v2 = alloca ptr, align 4
store i32 0, ptr %v0, align 4
store i32 %a0, ptr %v1, align 4
store ptr %a1, ptr %v2, align 4
%v3 = call zeroext i8 @f0(i32 20)
%v4 = zext i8 %v3 to i32
%v5 = call i32 (ptr, ...) @f3(ptr @g1, i32 %v4) #2
ret i32 0
}
; Function Attrs: nounwind
declare i32 @f3(ptr, ...) #1
attributes #0 = { noinline nounwind ssp "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" }
attributes #1 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" }
attributes #2 = { nounwind }
|
