From 0f940c95d4506f8d04fa2aeda8a79cadb3105fe3 Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 7 Dec 2007 21:42:31 +0000
Subject: Initial commit of the machine code LICM pass. It successfully hoists
 this:

_foo:
        li r2, 0
LBB1_1: ; bb
        li r5, 0
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr

to:

_foo:
        li r2, 0
        li r5, 0
LBB1_1: ; bb
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr

ZOMG!! :-)

Moar to come...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44687 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/Passes.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include/llvm/CodeGen')

diff --git a/include/llvm/CodeGen/Passes.h b/include/llvm/CodeGen/Passes.h
index 5e93525ab4..f0aa5082fe 100644
--- a/include/llvm/CodeGen/Passes.h
+++ b/include/llvm/CodeGen/Passes.h
@@ -135,6 +135,10 @@ namespace llvm {
   /// for the Sparc.
   FunctionPass *getRegisterAllocator(TargetMachine &T);
 
+  /// createMachineLICMPass - This pass performs LICM on machine instructions.
+  /// 
+  FunctionPass *createMachineLICMPass();
+
 } // End llvm namespace
 
 #endif
-- 
cgit v1.2.3-70-g09d2