[llvm-commits] [llvm] r79484 - in /llvm/trunk: lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp test/CodeGen/X86/2009-08-19-inline-asm-a-modifier.ll

Chris Lattner clattner at apple.com
Wed Aug 19 20:16:07 PDT 2009


On Aug 19, 2009, at 5:40 PM, Dale Johannesen wrote:

>>
>> If regalloc picks a register other than eax, it's a bug that would  
>> be good to catch because that would be increasing number of used  
>> registers.
>
> No, using ecx or edx would not make the code quality any worse.

They would clobber an extra register.  If/when we start doing  
interprocedural regalloc, that is bad.  Forcing the test to check for  
eax does not make the test any more fragile.

-Chris



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