1 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-mingw32 | FileCheck %s -check-prefix=M64
2 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-win32 | FileCheck %s -check-prefix=W64
3 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-win32-macho | FileCheck %s -check-prefix=EFI
7 define i64 @unaligned(i64 %n, i64 %x) nounwind {
8 ; M64-LABEL: unaligned:
9 ; W64-LABEL: unaligned:
10 ; EFI-LABEL: unaligned:
13 %buf0 = alloca i8, i64 4096, align 1
15 ; ___chkstk must adjust %rsp.
16 ; M64: movq %rsp, %rbp
18 ; M64: callq ___chkstk
21 ; __chkstk does not adjust %rsp.
22 ; W64: movq %rsp, %rbp
25 ; W64: subq %rax, %rsp
28 ; EFI: movq %rsp, %rbp
29 ; EFI: $[[B0OFS:4096|4104]], %rsp
32 %buf1 = alloca i8, i64 %n, align 1
34 ; M64: leaq 15(%{{.*}}), %rax
35 ; M64: andq $-16, %rax
36 ; M64: callq ___chkstk
38 ; M64: movq %rsp, %rax
40 ; W64: leaq 15(%{{.*}}), %rax
41 ; W64: andq $-16, %rax
43 ; W64: subq %rax, %rsp
44 ; W64: movq %rsp, %rax
46 ; EFI: leaq 15(%{{.*}}), [[R1:%r.*]]
47 ; EFI: andq $-16, [[R1]]
48 ; EFI: movq %rsp, [[R64:%r.*]]
49 ; EFI: subq [[R1]], [[R64]]
50 ; EFI: movq [[R64]], %rsp
52 %r = call i64 @bar(i64 %n, i64 %x, i64 %n, i8* %buf0, i8* %buf1) nounwind
55 ; M64: leaq -4096(%rbp), %r9
56 ; M64: movq %rax, 32(%rsp)
60 ; W64: leaq -4096(%rbp), %r9
61 ; W64: movq %rax, 32(%rsp)
65 ; EFI: leaq -[[B0OFS]](%rbp), %r9
66 ; EFI: movq [[R64]], 32(%rsp)
71 ; M64: movq %rbp, %rsp
73 ; W64: movq %rbp, %rsp
77 define i64 @aligned(i64 %n, i64 %x) nounwind {
83 %buf1 = alloca i8, i64 %n, align 128
85 ; M64: leaq 15(%{{.*}}), %rax
86 ; M64: andq $-16, %rax
87 ; M64: callq ___chkstk
88 ; M64: movq %rsp, [[R2:%r.*]]
89 ; M64: andq $-128, [[R2]]
90 ; M64: movq [[R2]], %rsp
92 ; W64: leaq 15(%{{.*}}), %rax
93 ; W64: andq $-16, %rax
95 ; W64: subq %rax, %rsp
96 ; W64: movq %rsp, [[R2:%r.*]]
97 ; W64: andq $-128, [[R2]]
98 ; W64: movq [[R2]], %rsp
100 ; EFI: leaq 15(%{{.*}}), [[R1:%r.*]]
101 ; EFI: andq $-16, [[R1]]
102 ; EFI: movq %rsp, [[R64:%r.*]]
103 ; EFI: subq [[R1]], [[R64]]
104 ; EFI: andq $-128, [[R64]]
105 ; EFI: movq [[R64]], %rsp
107 %r = call i64 @bar(i64 %n, i64 %x, i64 %n, i8* undef, i8* %buf1) nounwind
109 ; M64: subq $48, %rsp
110 ; M64: movq [[R2]], 32(%rsp)
113 ; W64: subq $48, %rsp
114 ; W64: movq [[R2]], 32(%rsp)
117 ; EFI: subq $48, %rsp
118 ; EFI: movq [[R64]], 32(%rsp)
124 declare i64 @bar(i64, i64, i64, i8* nocapture, i8* nocapture) nounwind