Dan Gohman 61a9213440 Implement an x86-64 ABI detail of passing structs by hidden first ...

argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.

Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50075 91177308-0d34-0410-b5e6-96231b3b80d8

2008-04-21 23:59:07 +00:00

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Alpha

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ARM

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CBackend

rename *.llx -> *.ll

2008-04-19 22:29:10 +00:00

CellSPU

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Generic

rename *.llx -> *.ll

2008-04-19 22:29:10 +00:00

IA64

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PowerPC

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SPARC

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X86

Implement an x86-64 ABI detail of passing structs by hidden first

2008-04-21 23:59:07 +00:00