llvm/lib at cb5fd743a95898ddefd75b6d104f5e91c0d50b23 - llvm

RPCSX/llvm

mirror of https://github.com/RPCSX/llvm.git synced 2025-03-03 02:17:41 +00:00

History

Chris Lattner cb5fd743a9 Enhance memdep to return clobber relation between noalias loads when

an earlier load could be widened to encompass a later load.  For example,
if we see:

  X = load i8* P, align 4
  Y = load i8* (P+3), align 1

and we have a 32-bit native integer type, we can widen the former load
to i32 which then makes the second load redundant.  GVN can't actually
do anything with this load/load relation yet, so this isn't testable, but 
it is the next step to resolving PR6627, and a fairly general class of 
"merge neighboring loads" missed optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130250 91177308-0d34-0410-b5e6-96231b3b80d8

2011-04-26 22:42:01 +00:00

Analysis

Enhance memdep to return clobber relation between noalias loads when

2011-04-26 22:42:01 +00:00

Archive

Revert PathV2 changes, as sys::fs::unique_file is not finished yet.

2011-03-01 19:50:55 +00:00

AsmParser

PR9214: Convert Metadata API to use ArrayRef.

2011-04-21 19:59:31 +00:00

Bitcode

PR9214: Convert Metadata API to use ArrayRef.