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Dan pointed out that this is done, remove it!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35430 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2007-03-28 17:26:52 +00:00
parent 6461bbfc50
commit e9a61234ce
1 changed files with 0 additions and 21 deletions
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21
lib/Target/X86/README-X86-64.txt
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@ -28,27 +28,6 @@ _bar:
We need to do the tailcall optimization as well.
//===---------------------------------------------------------------------===//
For this:
int test(int a)
{
return a * 3;
}
We generates
leal (%edi,%edi,2), %eax
We should be generating
leal (%rdi,%rdi,2), %eax
instead. The later form does not require an address-size prefix 67H.
It's probably ok to simply emit the corresponding 64-bit super class registers
in this case?
//===---------------------------------------------------------------------===//
AMD64 Optimization Manual 8.2 has some nice information about optimizing integer