Chris Lattner f38df04c3a Fix a problem that Nate noticed, where spill code was not getting coallesced ...

with copies, leading to code like this:

       lwz r4, 380(r1)
       or r10, r4, r4    ;; Last use of r4

By teaching the PPC backend how to fold spills into copies, we now get this
code:

       lwz r10, 380(r1)

wow. :)

This reduces a testcase nate sent me from 1505 instructions to 1484.

Note that this could handle FP values but doesn't currently, for reasons
mentioned in the patch


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23298 91177308-0d34-0410-b5e6-96231b3b80d8

2005-09-09 21:46:49 +00:00

..

Analysis

floor/ceil don't read/write memory. This allows gcse to eliminate 6 calls

2005-08-24 16:58:56 +00:00

Archive

…

AsmParser

Implement PR614:

2005-08-27 18:50:39 +00:00

Bytecode

Culling out use of unions for converting FP to bits and vice versa.

2005-08-17 19:34:49 +00:00

CodeGen

Use continue in the use-processing loop to make it clear what the early exits

2005-09-09 20:29:51 +00:00

Debugger

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ExecutionEngine

Add help support for -mcpu and -mattr.

2005-09-02 19:27:43 +00:00

Linker

…

Support

Allow bugpoint+PPC codegen to use fsqrt

2005-08-29 13:14:24 +00:00

System

For PR616:

2005-08-24 10:07:20 +00:00

Target

Fix a problem that Nate noticed, where spill code was not getting coallesced

2005-09-09 21:46:49 +00:00

Transforms

Fix a problem that Dan Berlin noticed, where reassociation would not succeed

2005-09-02 07:07:58 +00:00

VMCore

add printer support for flag operands

2005-08-25 17:59:23 +00:00

Makefile

…