Commit Graph

14 Commits

Author SHA1 Message Date
Chris Lattner
518f9c7ad0 Add missing PPC64 extload/truncstores
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29140 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-14 04:42:02 +00:00
Chris Lattner
d998938459 Implement Regression/CodeGen/PowerPC/bswap-load-store.ll by folding bswaps
into i16/i32 load/stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29089 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-10 20:56:58 +00:00
Chris Lattner
ecfe55e65b When possible, custom lower 32-bit SINT_TO_FP to this:
_foo2:
        extsw r2, r3
        std r2, -8(r1)
        lfd f0, -8(r1)
        fcfid f0, f0
        frsp f1, f0
        blr

instead of this:

_foo2:
        lis r2, ha16(LCPI2_0)
        lis r4, 17200
        xoris r3, r3, 32768
        stw r3, -4(r1)
        stw r4, -8(r1)
        lfs f0, lo16(LCPI2_0)(r2)
        lfd f1, -8(r1)
        fsub f0, f1, f0
        frsp f1, f0
        blr

This speeds up Misc/pi from 2.44s->2.09s with LLC and from 3.01->2.18s
with llcbeta (16.7% and 38.1% respectively).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26943 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-22 05:30:33 +00:00
Chris Lattner
64ce964673 Fix a couple of bugs that broke the alpha tester build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26722 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 05:23:59 +00:00
Chris Lattner
3faad495bc Handle cracked instructions in dispatch group formation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26721 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 05:20:04 +00:00
Chris Lattner
88d211f823 Several big changes:
1. Use flags on the instructions in the .td file to indicate the PPC970 unit
   type instead of a table in the .cpp file.  Much cleaner.
2. Change the hazard recognizer to build d-groups according to the actual
   algorithm used, not my flawed understanding of it.
3. Model "must be in the first slot" and "must be the only instr in a group"
   accurately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26719 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-12 09:13:49 +00:00
Chris Lattner
9c2c38674a blr is a branch too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26710 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-11 21:49:49 +00:00
Chris Lattner
b0d21ef20c Change the interface for getting a target HazardRecognizer to be more clean.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26608 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:25:59 +00:00
Chris Lattner
b84225b080 add another missing store.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26595 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 16:26:48 +00:00
Chris Lattner
ab5801cb28 add a couple more load/store instrs, add a newline to the end of file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26594 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 16:19:46 +00:00
Nate Begeman
3acbe5d4f0 This kinda sorta implements "things that have to lead a dispatch group".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26591 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 08:30:27 +00:00
Chris Lattner
2046371e70 add some new instructions to the classifier. With this, we correctly insert
a nop into Freebench/neural, which speeds it up from 136->129s (~5.4%).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26590 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 07:14:55 +00:00
Chris Lattner
7ce64852e8 add some comments that describe what we model
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26588 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 06:44:19 +00:00
Chris Lattner
c664418820 Implement a very very simple hazard recognizer for LSU rejects and ctr set/read
flushes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26587 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-07 06:32:48 +00:00