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37 Commits

Author SHA1 Message Date
Nate Begeman
ae232e7a10 Add the necessary support to the ISel to allow targets to codegen the new 
alignment information appropriately.  Includes code for PowerPC to support
fixed-size allocas with alignment larger than the stack.  Support for
arbitrarily aligned dynamic allocas coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-06 09:00:38 +00:00
Chris Lattner
841d12d9ac Fix the JIT encoding of LWA, LD, STD, and STDU. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23787 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 16:51:22 +00:00
Nate Begeman
1d9d7427c4 First bits of 64 bit PowerPC stuff, currently disabled. A lot of this is 
purely mechanical.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23778 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-18 00:28:58 +00:00
Nate Begeman
21e463b2bf More PPC32 -> PPC changes, as well as merging some classes that were 
redundant after the change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23759 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-16 05:39:50 +00:00
Chris Lattner
16e71f2f70 Rename PPC32*.h to PPC*.h 
This completes the grand PPC file renaming


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23745 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:59:06 +00:00
Chris Lattner
2668959b88 Rename PowerPC*.h to PPC*.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23743 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:51:18 +00:00
Chris Lattner
26bd0d48a1 Rename PowerPCInstrBuilder.h -> PPC* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23742 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:45:43 +00:00
Chris Lattner
4c7b43b43f Eliminate PowerPC.td and PPC32.td, consolidating them into PPC.td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23738 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-14 23:37:35 +00:00
Chris Lattner
b91956e7f8 like the comment says, enable this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23581 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-01 23:02:40 +00:00
Chris Lattner
919c032fa4 Modify the ppc backend to use two register classes for FP: F8RC and F4RC. 
These are used to represent float and double values, and the two regclasses
contain the same physical registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23577 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-01 01:35:02 +00:00
Nate Begeman
2b5e66fc6e Remove some now-dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23571 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-30 21:28:27 +00:00
Chris Lattner
5802be13e0 constant fold these calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23558 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-30 17:16:59 +00:00
Chris Lattner
b48d2cf5eb pass extra args 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23539 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-30 01:31:52 +00:00
Chris Lattner
6a78c2157a Implement hook for ppc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23374 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-17 01:03:26 +00:00
Chris Lattner
c9fe7508a5 I forgot that we always spill fp values as 64-bits. Implement spill folding 
for FP as well.  This triggers a couple dozen times on 177.mesa (for example).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23299 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-09 21:59:44 +00:00
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
Chris Lattner
1463019e84 code cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23297 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-09 20:51:08 +00:00
Chris Lattner
82972705df teach getClass what a condition reg is 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23105 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:51:29 +00:00
Chris Lattner
5087daac23 Minor cleanups: 
* avoid calling getClass() multiple times (it is relatively expensive)
  * Allow -disable-fp-elim to turn of frame pointer elimination.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23104 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 21:49:18 +00:00
Chris Lattner
0b1e641b82 Now that the simple isels are dead, so is this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22913 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 18:30:39 +00:00
Chris Lattner
3f852b45fc MFLR doesn't take an operand, the LR register is implicit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22882 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-18 23:24:50 +00:00
Nate Begeman
3d72d14887 Use the new subtarget support to automatically choose the correct ABI 
and asm printer for PowerPC if one is not specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22659 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 20:49:48 +00:00
Jeff Cohen
d29b6aa608 Keep tabs and trailing spaces out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-30 18:33:25 +00:00
Nate Begeman
3dee17581c Fix some comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22530 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 23:11:27 +00:00
Nate Begeman
54eed36da5 Implement the optimization for the Red Zone on Darwin. This removes the 
unnecessary SP manipulation in leaf routines that don't need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22522 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 06:06:29 +00:00
Misha Brukman
7847fcac17 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21452 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 17:54:37 +00:00
Misha Brukman
b5f662fa03 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21425 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:30:14 +00:00
Nate Begeman
7af0248af4 Initial support for allocation condition registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 07:04:16 +00:00
Nate Begeman
340f290783 Remove unnecessary Implicit Defs. Since r0 is not in allocation, we do not 
have to inform the register allocator it might be stepped on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21202 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 03:59:42 +00:00
Nate Begeman
04ec80173b Remove unnecessary register copy now that regalloc is fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21085 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 21:48:13 +00:00
Nate Begeman
dfd0e7bc34 Eliminate usage of MRegisterInfo::getRegClass(physreg) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17240 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-26 05:40:45 +00:00
Nate Begeman
da721e74f8 Correct some BuildMI arguments for the upcoming simple scheduler 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16519 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-27 05:08:17 +00:00
Reid Spencer
551ccae044 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00
Nate Begeman
5709998993 Register sizes are in bits, not bytes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16070 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-27 04:28:10 +00:00
Nate Begeman
1f4a132599 Don't hard code the offset of the saved R31 in functions with frame pointers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15990 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-22 08:09:17 +00:00
Chris Lattner
8edcd84653 Reduce uses of getRegClass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15968 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-21 19:51:17 +00:00
Misha Brukman
f2ccb77ee9 PowerPC 32-/64-bit split: Part I, PPC32* bit files, adapted from former PowerPC* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15850 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-17 04:55:41 +00:00