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|
; RUN: llc < %s -mcpu=generic -enable-misched=false -mtriple=x86_64-mingw32 | FileCheck %s -check-prefix=M64
; RUN: llc < %s -mcpu=generic -enable-misched=false -mtriple=x86_64-win32 | FileCheck %s -check-prefix=W64
; RUN: llc < %s -mcpu=generic -enable-misched=false -mtriple=x86_64-win32-macho | FileCheck %s -check-prefix=EFI
; PR8777
; PR8778
define i64 @unaligned(i64 %n, i64 %x) nounwind {
; M64-LABEL: unaligned:
; W64-LABEL: unaligned:
; EFI-LABEL: unaligned:
entry:
%buf0 = alloca i8, i64 4096, align 1
; ___chkstk must adjust %rsp.
; M64: movq %rsp, %rbp
; M64: $4096, %rax
; M64: callq ___chkstk
; M64-NOT: %rsp
; __chkstk does not adjust %rsp.
; W64: movq %rsp, %rbp
; W64: $4096, %rax
; W64: callq __chkstk
; W64: subq %rax, %rsp
; Freestanding
; EFI: movq %rsp, %rbp
; EFI: $[[B0OFS:4096|4104]], %rsp
; EFI-NOT: call
%buf1 = alloca i8, i64 %n, align 1
; M64: leaq 15(%{{.*}}), %rax
; M64: andq $-16, %rax
; M64: callq ___chkstk
; M64-NOT: %rsp
; M64: movq %rsp, %rax
; W64: leaq 15(%{{.*}}), %rax
; W64: andq $-16, %rax
; W64: callq __chkstk
; W64: subq %rax, %rsp
; W64: movq %rsp, %rax
; EFI: leaq 15(%{{.*}}), [[R1:%r.*]]
; EFI: andq $-16, [[R1]]
; EFI: movq %rsp, [[R64:%r.*]]
; EFI: subq [[R1]], [[R64]]
; EFI: movq [[R64]], %rsp
%r = call i64 @bar(i64 %n, i64 %x, i64 %n, i8* %buf0, i8* %buf1) nounwind
; M64: subq $48, %rsp
; M64: movq %rax, 32(%rsp)
; M64: leaq -4096(%rbp), %r9
; M64: callq bar
; W64: subq $48, %rsp
; W64: movq %rax, 32(%rsp)
; W64: leaq -4096(%rbp), %r9
; W64: callq bar
; EFI: subq $48, %rsp
; EFI: movq [[R64]], 32(%rsp)
; EFI: leaq -[[B0OFS]](%rbp), %r9
; EFI: callq _bar
ret i64 %r
; M64: movq %rbp, %rsp
; W64: movq %rbp, %rsp
}
define i64 @aligned(i64 %n, i64 %x) nounwind {
; M64-LABEL: aligned:
; W64-LABEL: aligned:
; EFI-LABEL: aligned:
entry:
%buf1 = alloca i8, i64 %n, align 128
; M64: leaq 15(%{{.*}}), %rax
; M64: andq $-16, %rax
; M64: callq ___chkstk
; M64: movq %rsp, [[R2:%r.*]]
; M64: andq $-128, [[R2]]
; M64: movq [[R2]], %rsp
; W64: leaq 15(%{{.*}}), %rax
; W64: andq $-16, %rax
; W64: callq __chkstk
; W64: subq %rax, %rsp
; W64: movq %rsp, [[R2:%r.*]]
; W64: andq $-128, [[R2]]
; W64: movq [[R2]], %rsp
; EFI: leaq 15(%{{.*}}), [[R1:%r.*]]
; EFI: andq $-16, [[R1]]
; EFI: movq %rsp, [[R64:%r.*]]
; EFI: subq [[R1]], [[R64]]
; EFI: andq $-128, [[R64]]
; EFI: movq [[R64]], %rsp
%r = call i64 @bar(i64 %n, i64 %x, i64 %n, i8* undef, i8* %buf1) nounwind
; M64: subq $48, %rsp
; M64: movq [[R2]], 32(%rsp)
; M64: callq bar
; W64: subq $48, %rsp
; W64: movq [[R2]], 32(%rsp)
; W64: callq bar
; EFI: subq $48, %rsp
; EFI: movq [[R64]], 32(%rsp)
; EFI: callq _bar
ret i64 %r
}
declare i64 @bar(i64, i64, i64, i8* nocapture, i8* nocapture) nounwind
|
