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
59
60
61
62
63
64
65
66
67
68
69
70
| ; When we accept small parameters on Windows, make sure we do not assume they
; are zero or sign extended in memory or in registers.
; RUN: llc < %s -mtriple=x86_64-windows-msvc | FileCheck %s --check-prefix=WIN64
; RUN: llc < %s -mtriple=x86_64-windows-gnu | FileCheck %s --check-prefix=WIN64
; RUN: llc < %s -mtriple=i686-windows-msvc | FileCheck %s --check-prefix=WIN32
; RUN: llc < %s -mtriple=i686-windows-gnu | FileCheck %s --check-prefix=WIN32
define void @call() {
entry:
%rv = call i32 @manyargs(i8 1, i16 2, i8 3, i16 4, i8 5, i16 6)
ret void
}
define i32 @manyargs(i8 %a, i16 %b, i8 %c, i16 %d, i8 %e, i16 %f) {
entry:
%aa = sext i8 %a to i32
%bb = sext i16 %b to i32
%cc = zext i8 %c to i32
%dd = zext i16 %d to i32
%ee = zext i8 %e to i32
%ff = zext i16 %f to i32
%t0 = add i32 %aa, %bb
%t1 = add i32 %t0, %cc
%t2 = add i32 %t1, %dd
%t3 = add i32 %t2, %ee
%t4 = add i32 %t3, %ff
ret i32 %t4
}
; WIN64-LABEL: call:
; WIN64-DAG: movw $6, 40(%rsp)
; WIN64-DAG: movb $5, 32(%rsp)
; WIN64-DAG: movb $1, %cl
; WIN64-DAG: movw $2, %dx
; WIN64-DAG: movb $3, %r8b
; WIN64-DAG: movw $4, %r9w
; WIN64: callq manyargs
; WIN64-LABEL: manyargs:
; WIN64-DAG: movsbl %cl,
; WIN64-DAG: movswl %dx,
; WIN64-DAG: movzbl %r8b,
; WIN64-DAG: movzwl %r9w,
; WIN64-DAG: movzbl 40(%rsp),
; WIN64-DAG: movzwl 48(%rsp),
; WIN64: retq
; WIN32-LABEL: _call:
; WIN32: pushl $6
; WIN32: pushl $5
; WIN32: pushl $4
; WIN32: pushl $3
; WIN32: pushl $2
; WIN32: pushl $1
; WIN32: calll _manyargs
; WIN32-LABEL: _manyargs:
; WIN32: pushl %ebx
; WIN32: pushl %edi
; WIN32: pushl %esi
; WIN32-DAG: movsbl 16(%esp),
; WIN32-DAG: movswl 20(%esp),
; WIN32-DAG: movzbl 24(%esp),
; WIN32-DAG: movzwl 28(%esp),
; WIN32-DAG: movzbl 32(%esp),
; WIN32-DAG: movzwl 36(%esp),
; WIN32: retl
|