Created
January 22, 2015 18:52
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| eedstack_1: | |
| movabsq $72, %r10 | |
| movabsq $0, %r11 | |
| int $3 | |
| retq | |
| .align 0x20 | |
| the_function_1: | |
| cmpq $0, %rsp | |
| jbe needstack_1 | |
| .rept 40 | |
| nop | |
| .endr | |
| inc %eax | |
| cmp $1000000, %eax | |
| jge done_1 | |
| call the_function_1 | |
| done_1: | |
| retq | |
| .align 0x20 | |
| the_function_2: | |
| cmpq $0, %rsp | |
| ja body_2 | |
| movabsq $72, %r10 | |
| movabsq $0, %r11 | |
| callq __morestack | |
| retq | |
| body_2: | |
| .rept 40 | |
| nop | |
| .endr | |
| inc %eax | |
| cmp $1000000, %eax | |
| jge done_2 | |
| call the_function_2 | |
| done_2: | |
| retq | |
| .globl main | |
| .type main, @function | |
| main: | |
| .rept 1000 | |
| xor %eax, %eax | |
| call the_function_1 | |
| .endr | |
| retq |
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| wocky@XMPPwocky:~/cachelol$ time ./old | |
| real 0m9.632s | |
| user 0m9.597s | |
| sys 0m0.000s | |
| wocky@XMPPwocky:~/cachelol$ time ./new | |
| real 0m8.603s | |
| user 0m8.557s | |
| sys 0m0.016s |
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