Created
October 14, 2011 20:18
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Assembly output of GCC 4.2.1 for the "doubleThis" function
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| __Z11doubleThisd: | |
| pushq %rbp | |
| movq %rsp, %rbp | |
| movsd %xmm0, -8(%rbp) | |
| movsd -8(%rbp), %xmm0 # Directly copy the parameter into the FP register | |
| addsd %xmm0, %xmm0 # Calculate x+x instead of 2x | |
| leave | |
| ret |
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