[LLVMdev] Load with null memory operand?

Evan Cheng evan.cheng at apple.com
Sun Mar 8 18:44:06 PDT 2009


It depends on how your target models its addressing mode. Targets with  
complex addressing modes usually isel addresses with custom code.

Evan

On Mar 6, 2009, at 4:05 PM, Villmow, Micah wrote:

> How do I match against this instruction?
> 01ABDA58: i64,ch = load 01ABD948, 01ABD8C0, 01AB1350 <null:0>
>
>
> This is the first time I’ve seen NULL in the memory operand  
> location. Any idea on how this could be mapped with tablegen  
> correctly?
>
> 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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