1 ; Check that the __stack_chk_guard was placed in small data.
2 ; RUN: llc -march=hexagon -mtriple=hexagon-unknown-linux-gnu -O2 -hexagon-small-data-threshold=4 < %s | FileCheck -check-prefix=GPREL %s
3 ; GPREL: memw(gp+#__stack_chk_guard)
5 ; For threshold less than 4 (size of address), the variable is not placed in small-data
6 ; RUN: llc -march=hexagon -mtriple=hexagon-unknown-linux-gnu -O2 -hexagon-small-data-threshold=0 < %s | FileCheck -check-prefix=ABS %s
7 ; ABS: memw(##__stack_chk_guard)
9 @g0 = private unnamed_addr constant [37 x i8] c"This string is longer than 16 bytes\0A\00", align 1
10 @g1 = private unnamed_addr constant [15 x i8] c"\0AChar 20 = %c\0A\00", align 1
12 ; Function Attrs: noinline nounwind ssp
13 define zeroext i8 @f0(i32 %a0) #0 {
15 %v0 = alloca i32, align 4
16 %v1 = alloca [64 x i8], align 8
17 %v2 = alloca ptr, align 4
18 store i32 %a0, ptr %v0, align 4
19 store ptr @g0, ptr %v2, align 4
20 %v4 = load ptr, ptr %v2, align 4
21 %v5 = call ptr @f1(ptr %v1, ptr %v4) #2
22 %v6 = load i32, ptr %v0, align 4
23 %v7 = getelementptr inbounds [64 x i8], ptr %v1, i32 0, i32 %v6
24 %v8 = load i8, ptr %v7, align 1
28 ; Function Attrs: nounwind
29 declare ptr @f1(ptr, ptr) #1
31 ; Function Attrs: noinline nounwind ssp
32 define i32 @f2(i32 %a0, ptr %a1) #0 {
34 %v0 = alloca i32, align 4
35 %v1 = alloca i32, align 4
36 %v2 = alloca ptr, align 4
37 store i32 0, ptr %v0, align 4
38 store i32 %a0, ptr %v1, align 4
39 store ptr %a1, ptr %v2, align 4
40 %v3 = call zeroext i8 @f0(i32 20)
41 %v4 = zext i8 %v3 to i32
42 %v5 = call i32 (ptr, ...) @f3(ptr @g1, i32 %v4) #2
46 ; Function Attrs: nounwind
47 declare i32 @f3(ptr, ...) #1
49 attributes #0 = { noinline nounwind ssp "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" }
50 attributes #1 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b" }
51 attributes #2 = { nounwind }