[LLVMdev] 16 bit to 32 bit conversion

Villmow, Micah
Mon, 02 Feb 2009 20:54:57 -0000

Thanks for making me double check my own mistake. I had
addRegisterClass(MVT::i16, XX::i32RegisterClass).



Micah



________________________________

From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu]
On Behalf Of Evan Cheng
Sent: Monday, February 02, 2009 12:34 PM
To: LLVM Developers Mailing List
Subject: Re: [LLVMdev] 16 bit to 32 bit conversion



Are you marking i16 a legal type? In XXISelLowering.cpp, you should
assign it a register class. e.g. addRegisterClass(MVT::i16,
XX::i16RegisterClass)



Evan



On Feb 2, 2009, at 12:19 PM, Villmow, Micah wrote:





It seems that LLVM is converting all the 16 bit ints into 32 bit ints.
Is there a way I can tell LLVM that 16 bit ints are valid and legal and
not to do any conversions on them?



Thanks,



Micah Villmow

Systems Engineer

Advanced Technology & Performance

Advanced Micro Devices Inc.

S1-609 One AMD Place

Sunnyvale, CA. 94085

P: 408-749-3966





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