Created
July 3, 2012 22:23
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llvm
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| --- readdir.s 2012-07-03 15:25:01.324857380 +0000 | |
| +++ readdir_o.s 2012-07-03 15:25:28.108185315 +0000 | |
| @@ -14,20 +14,8 @@ | |
| movq %rdi, %rbx | |
| movl 16(%rbx), %eax | |
| cmpl 20(%rbx), %eax | |
| - jl .LBB0_3 | |
| -# BB#1: | |
| - movl (%rbx), %edi | |
| - leaq 32(%rbx), %rsi | |
| - movl $2048, %edx # imm = 0x800 | |
| - callq __getdents | |
| - movl %eax, %ecx | |
| - xorl %eax, %eax | |
| - testl %ecx, %ecx | |
| - jle .LBB0_4 | |
| -# BB#2: | |
| - movl %ecx, 20(%rbx) | |
| - movl $0, 16(%rbx) | |
| - xorl %eax, %eax | |
| + jge .LBB0_1 | |
| + .align 16, 0x90 | |
| .LBB0_3: | |
| movslq %eax, %rax | |
| movzwl 48(%rbx,%rax), %ecx | |
| @@ -37,9 +25,24 @@ | |
| movq 40(%rbx,%rax), %rcx | |
| movq %rcx, 8(%rbx) | |
| leaq 32(%rbx,%rax), %rax | |
| + .align 16, 0x90 | |
| .LBB0_4: | |
| popq %rbx | |
| ret | |
| +.LBB0_1: | |
| + movl (%rbx), %edi | |
| + leaq 32(%rbx), %rsi | |
| + movl $2048, %edx # imm = 0x800 | |
| + callq __getdents | |
| + movl %eax, %ecx | |
| + xorl %eax, %eax | |
| + testl %ecx, %ecx | |
| + jle .LBB0_4 | |
| +# BB#2: | |
| + movl %ecx, 20(%rbx) | |
| + movl $0, 16(%rbx) | |
| + xorl %eax, %eax | |
| + jmp .LBB0_3 | |
| .Ltmp4: | |
| .size readdir, .Ltmp4-readdir | |
| .cfi_endproc |
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