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