forked from OSchip/llvm-project
60 lines
1.3 KiB
ArmAsm
60 lines
1.3 KiB
ArmAsm
# REQUIRES: system-linux
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \
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# RUN: %s -o %t.o
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# RUN: link_fdata %s %t.o %t.fdata
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# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -data %t.fdata -print-finalized \
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# RUN: -tail-duplication -tail-duplication-minimum-offset 1 -o %t.out | FileCheck %s
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# FDATA: 1 main f 1 main 19 0 10
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# FDATA: 1 main f 1 main 11 0 13
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# FDATA: 1 main 17 1 main 3c 0 10
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# FDATA: 1 main 39 1 main 3c 0 10
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# CHECK: tail duplication possible duplications: 1
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# CHECK: BB Layout : .LBB00, .Ltmp0, .Ltail-dup0, .Ltmp1, .Ltmp2
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# This is the C++ code fed to Clang
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# int fib(int term) {
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# if (term <= 1)
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# return term;
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# return fib(term-1) + fib(term-2);
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# }
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.text
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.globl main
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.type main, %function
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.size main, .Lend-main
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main:
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push %rbp
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mov %rsp,%rbp
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sub $0x10,%rsp
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mov %edi,-0x8(%rbp)
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cmpl $0x1,-0x8(%rbp)
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jg .BB1
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.BB0:
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mov -0x8(%rbp),%eax
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mov %eax,-0x4(%rbp)
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jmp .BB2
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.BB1:
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mov -0x8(%rbp),%edi
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sub $0x1,%edi
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call main
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mov %eax,-0xc(%rbp)
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mov -0x8(%rbp),%edi
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sub $0x2,%edi
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call main
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mov %eax,%ecx
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mov -0xc(%rbp),%eax
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add %ecx,%eax
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mov %eax,-0x4(%rbp)
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.BB2:
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mov -0x4(%rbp),%eax
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add $0x10,%rsp
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pop %rbp
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retq
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nopl 0x0(%rax)
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.Lend:
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