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
|
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,NOC
; RUN: llc -mtriple=riscv64 -mattr=+c -verify-machineinstrs < %s | FileCheck %s --check-prefixes=CHECK,C
;; The alignment is at least 4 to avoid unaligned type hash loads when this
;; instrumented function is indirectly called.
; CHECK-LABEL: .globl f1
; CHECK: .p2align 2
; CHECK-NOT: nop
; CHECK: .word 12345678
; CHECK-LABEL: f1:
define void @f1(ptr noundef %x) !kcfi_type !1 {
; CHECK: lw t1, -4(a0)
call void %x() [ "kcfi"(i32 12345678) ]
ret void
}
; CHECK-LABEL: .globl f2
; NOC: .p2align 2
; C: .p2align 1
; CHECK-NOT: .word
; CHECK-NOT: nop
; CHECK-LABEL: f2:
define void @f2(ptr noundef %x) {
; CHECK: lw t1, -4(a0)
call void %x() [ "kcfi"(i32 12345678) ]
ret void
}
; CHECK-LABEL: .globl f3
; CHECK: .p2align 2
; CHECK: .word 12345678
; CHECK-COUNT-11: nop
; CHECK-LABEL: f3:
define void @f3(ptr noundef %x) #0 !kcfi_type !1 {
; NOC: lw t1, -48(a0)
; C: lw t1, -26(a0)
call void %x() [ "kcfi"(i32 12345678) ]
ret void
}
; CHECK-LABEL: .globl f4
; NOC: .p2align 2
; C: .p2align 1
; CHECK-NOT: .word
; CHECK-COUNT-11: nop
; CHECK-LABEL: f4:
define void @f4(ptr noundef %x) #0 {
; NOC: lw t1, -48(a0)
; C: lw t1, -26(a0)
call void %x() [ "kcfi"(i32 12345678) ]
ret void
}
attributes #0 = { "patchable-function-prefix"="11" }
!llvm.module.flags = !{!0}
!0 = !{i32 4, !"kcfi", i32 1}
!1 = !{i32 12345678}
|
