[llvm-commits] [PATCH] - Instcombine vector code optimizations

[Rotem, Nadav]

Ping.

-----Original Message-----
From: llvm-commits-bounces at cs.uiuc.edu [mailto:llvm-commits-bounces at cs.uiuc.edu] On Behalf Of Rotem, Nadav
Sent: Thursday, April 07, 2011 14:24
To: llvm-commits at cs.uiuc.edu
Subject: [llvm-commits] [PATCH] - Instcombine vector code optimizations

Hi, 

Please review the attached patch. I implemented two main optimizations:

1. Getelementptr (PTR, extract (vcast)))  -> Getelementptr (PTR, cast (extract)))  scalarize the casting of pointer index. 
   This generates much better code in cases where the gep index comes from a vector. 

2. Extend the EvaluateInDifferentType and CanEvaluateXXX to support Extract/Insert/ShuffleElement instructions.

Nadav


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