[llvm-commits] [llvm] r40628 - in /llvm/trunk: lib/Target/X86/X86InstrFPStack.td lib/Target/X86/X86InstrFormats.td lib/Target/X86/X86InstrInfo.td lib/Target/X86/X86InstrMMX.td lib/Target/X86/X86InstrSSE.td lib/Target/X86/X86InstrX86-64.td test/CodeGen/X86/2007-07-31-VInsertBug.ll

[Evan Cheng]

I'll look at this.

Evan
On Sep 28, 2007, at 12:17 PM, Chris Lattner wrote:

> Evan, ping?
>
> -Chris
>
> On Aug 1, 2007, at 5:47 PM, Chris Lattner wrote:
>
>> On Jul 31, 2007, at 1:04 AM, Evan Cheng wrote:
>>> Author: evancheng
>>> Date: Tue Jul 31 03:04:03 2007
>>> New Revision: 40628
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=40628&view=rev
>>> Log:
>>> Redo and generalize previously removed opt for pinsrw: (vextract
>>> (v4i32 bc (v4f32 s2v (f32 load ))), 0) -> (i32 load )
>>
>>
>>> +
>>> +// (vextract (v4i32 bc (v4f32 s2v (f32 load $addr))), 0) -> (i32
>>> load $addr)
>>> +def : Pat<(vector_extract
>>> +           (bc_v4i32 (v4f32 (scalar_to_vector (loadf32 addr:
>>> $src)))), (iPTR 0)),
>>> +          (MOV32rm addr:$src)>;
>>> +def : Pat<(vector_extract
>>> +           (bc_v2i64 (v2f64 (scalar_to_vector (loadf64 addr:
>>> $src)))), (iPTR 0)),
>>> +          (MOV64rm addr:$src)>;
>>
>> Would it be possible (and would it make sense) to do this in the dag
>> combiner rather than as a target-specific pattern?
>>
>> -Chris
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