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
|
; RUN: llc -mtriple=aarch64-linux-gnu %s -o - | FileCheck %s
define i8 @byval_match(i8* byval(i8) align 1, i8* byval(i8) %ptr) {
; CHECK-LABEL: byval_match:
; CHECK: ldrb w0, [sp, #8]
%res = load i8, i8* %ptr
ret i8 %res
}
define void @caller_match(i8* %p0, i8* %p1) {
; CHECK-LABEL: caller_match:
; CHECK: ldrb [[P1:w[0-9]+]], [x1]
; CHECK: strb [[P1]], [sp, #8]
; CHECK: ldrb [[P0:w[0-9]+]], [x0]
; CHECK: strb [[P0]], [sp]
; CHECK: bl byval_match
call i8 @byval_match(i8* byval(i8) align 1 %p0, i8* byval(i8) %p1)
ret void
}
define i8 @byval_large([3 x i64]* byval([3 x i64]) align 8, i8* byval(i8) %ptr) {
; CHECK-LABEL: byval_large:
; CHECK: ldrb w0, [sp, #24]
%res = load i8, i8* %ptr
ret i8 %res
}
define void @caller_large([3 x i64]* %p0, i8* %p1) {
; CHECK-LABEL: caller_large:
; CHECK: ldr [[P0HI:x[0-9]+]], [x0, #16]
; CHECK: ldr [[P0LO:q[0-9]+]], [x0]
; CHECK: str [[P0HI]], [sp, #16]
; CHECK: str [[P0LO]], [sp]
; CHECK: bl byval_large
call i8 @byval_large([3 x i64]* byval([3 x i64]) align 8 %p0, i8* byval(i8) %p1)
ret void
}
|
