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3605 Commits

Author SHA1 Message Date
Chris Lattner
4a8f6d97ff Implement the isLoadFromStackSlot interface 
llvm-svn: 23387
 2005-09-19 05:23:44 +00:00
Chris Lattner
45d4ddd903 Implement hook for ppc 
llvm-svn: 23374
 2005-09-17 01:03:26 +00:00
Chris Lattner
aa57457e20 disable this for now 
llvm-svn: 23366
 2005-09-15 21:44:00 +00:00
Chris Lattner
cd5eeef9ee Give all operands names 
llvm-svn: 23357
 2005-09-14 21:11:13 +00:00
Chris Lattner
54139f0b83 give all operands names 
llvm-svn: 23356
 2005-09-14 21:10:24 +00:00
Chris Lattner
3e8d9d8d08 Fix some issues exposed by more testing. XORIS had the wrong operands 
specified.  The various *imm operands defined by PPC are really all i32,
even though the actual immediate is restricted to a smaller value in it.

llvm-svn: 23352
 2005-09-14 20:53:05 +00:00
Chris Lattner
b97354c974 Fix some bugs noticed by new checking code 
llvm-svn: 23350
 2005-09-14 18:18:39 +00:00
Chris Lattner
fa644b391f fix a major regression from my patch this afternoon 
llvm-svn: 23347
 2005-09-14 06:06:45 +00:00
Chris Lattner
c7fb54af0b we don't need this proto any longer 
llvm-svn: 23342
 2005-09-13 22:05:21 +00:00
Chris Lattner
ffab20ddeb move the #include for the generated code into the isel class body so we 
can use/define class methods

llvm-svn: 23339
 2005-09-13 22:03:06 +00:00
Chris Lattner
16700b9beb Change the arg lowering code to use copyfromreg from vregs associated 
with incoming arguments instead of the pregs themselves.  This fixes
the scheduler from causing problems by moving a copyfromreg for an argument
to after a select_cc node (now it can, and bad things won't happen).

llvm-svn: 23334
 2005-09-13 19:33:40 +00:00
Chris Lattner
b56110ff54 This has been moved to the target-indep code 
llvm-svn: 23333
 2005-09-13 19:32:18 +00:00
Chris Lattner
00bfb7812d This code is no longer needed, it is moved to the target-indep code 
llvm-svn: 23332
 2005-09-13 19:31:44 +00:00
Chris Lattner
075b4458cf Majik numbers are bad 
llvm-svn: 23330
 2005-09-13 19:03:13 +00:00
Chris Lattner
766369cf45 Remove some dead vectors 
llvm-svn: 23329
 2005-09-13 18:47:49 +00:00
Chris Lattner
00e9278551 PowerPC cannot truncstore i1 natively 
llvm-svn: 23304
 2005-09-10 00:21:06 +00:00
Chris Lattner
ad8728e9a6 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).

llvm-svn: 23299
 2005-09-09 21:59:44 +00:00
Chris Lattner
da77012825 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

llvm-svn: 23298
 2005-09-09 21:46:49 +00:00
Chris Lattner
c3959855af code cleanup 
llvm-svn: 23297
 2005-09-09 20:51:08 +00:00
Chris Lattner
8d654c32cb Teach the code generator that rlwimi is commutable if the rotate amount 
is zero.  This lets the register allocator elide some copies in some cases.

This implements CodeGen/PowerPC/rlwimi-commute.ll

llvm-svn: 23292
 2005-09-09 18:17:41 +00:00
Chris Lattner
e8cc191dd6 Introduce two new concepts: 
1. Add support for defining Pattern's, which can match expressions when there
   is no instruction that directly implements something.  Instructions usually
   implicitly define patterns.
2. Add support for defining SDNodeXForm's, which are node transformations.
   This seperates the concept of a node xform out from the existing predicate
   support.

Using this new stuff, we add a few instruction patterns, one for testing, and
two for OR/XOR by an arbitrary immediate.

llvm-svn: 23286
 2005-09-09 00:39:56 +00:00
Chris Lattner
a3a924efdd whitespace/comment changes, no functionality diffs 
llvm-svn: 23283
 2005-09-08 23:17:26 +00:00
Chris Lattner
ca093b4f92 Add a bunch of stuff needed for node type inference. Move 'BLR' down with 
the rest of the instructions, add comment markers to seperate portions of
the file into logical parts

llvm-svn: 23277
 2005-09-08 19:50:41 +00:00
Chris Lattner
7d0a6e4db4 add patterns for x?oris? 
llvm-svn: 23268
 2005-09-08 17:40:49 +00:00
Chris Lattner
c23c950d73 add patterns to the addi/addis/mulli etc instructions. Define predicates 
for matching signed 16-bit and shifted 16-bit ppc immediates

llvm-svn: 23267
 2005-09-08 17:33:10 +00:00
Chris Lattner
f0d65ab5d3 Add patterns for some new instructions, allowing the use of the ineg fragment. 
llvm-svn: 23266
 2005-09-08 17:01:54 +00:00
Chris Lattner
1f7f2544fc ignore generated files 
llvm-svn: 23263
 2005-09-07 23:47:44 +00:00
Chris Lattner
1769be4699 Remove some cases handled by the generated portion of the isel 
llvm-svn: 23262
 2005-09-07 23:45:15 +00:00
Chris Lattner
617b26ddd7 On non-apple systems, when using -march=ppc32, do not print: 
'' is not a recognized processor for this target (ignoring processor)

Default to "generic" instead of "" for the default CPU.

llvm-svn: 23257
 2005-09-07 05:45:33 +00:00
Chris Lattner
4c5e794a9c Print: 
'' is not a recognized processor for this target (ignoring processor)

instead of:

 is not a recognized processor for this target (ignoring processor)

llvm-svn: 23256
 2005-09-07 05:44:14 +00:00
Nate Begeman
718cae4eba Implement i64<->fp using the fctidz/fcfid instructions on PowerPC when we 
are allowed to generate 64-bit-only PowerPC instructions for 32 bit hosts,
such as the PowerPC 970.

This speeds up 189.lucas from 81.99 to 32.64 seconds.

llvm-svn: 23250
 2005-09-06 22:03:27 +00:00
Andrew Lenharth
6f61810447 Fix up the AssertXext problem, as well as adding it at calls 
llvm-svn: 23246
 2005-09-06 17:00:23 +00:00
Nate Begeman
a94912c555 Add note about future optimization noted in the ppc compiler writer's guide 
llvm-svn: 23245
 2005-09-06 15:30:48 +00:00
Nate Begeman
f1994fa030 Add accessor for 64bit flag, so that we can tell when it is safe to 
generate the fun in-register fp<->long instructions.

llvm-svn: 23244
 2005-09-06 15:30:12 +00:00
Andrew Lenharth
00a229859e revert part of the last change, should fix regressions 
llvm-svn: 23241
 2005-09-04 06:12:19 +00:00
Chris Lattner
e9b488e262 explicitly specify an operands list for patterns with inputs (e.g. neg) 
llvm-svn: 23240
 2005-09-03 01:28:40 +00:00
Chris Lattner
dcb9830e25 include the dag isel fragment 
llvm-svn: 23239
 2005-09-03 01:17:22 +00:00
Chris Lattner
4186020e3b ask for a dag isel 
llvm-svn: 23238
 2005-09-03 01:15:41 +00:00
Chris Lattner
cbfe5d4180 Change the isel to not break out of the big giant switch. Instead, the 
switch should never be exited, so its bottom is now unreachable.

llvm-svn: 23234
 2005-09-03 00:53:47 +00:00
Chris Lattner
47c5e11f36 rearrange logical ops to group them together more consistently. 
Define the PatFrag class which can be used to define subpatterns to match
things with.  Define 'not', and use it to define the patterns for andc,
nand, etc.

llvm-svn: 23233
 2005-09-03 00:21:51 +00:00
Chris Lattner
a1a3e767e3 Add AND/OR/XOR 
llvm-svn: 23232
 2005-09-02 22:35:53 +00:00
Chris Lattner
0b07b6f9a1 Add some initial patterns to simple binary instructions, though they 
currently don't do anything.  This elides patterns for binary operators
that ping on the carry flag, since we don't model it yet.

This patch also removes PPC::SUB, because it is dead.

llvm-svn: 23230
 2005-09-02 21:18:00 +00:00
Chris Lattner
e1a69ba1bd turn on dag isel by default 
llvm-svn: 23226
 2005-09-02 19:53:54 +00:00
Jim Laskey
1f9c40400c Add help support for -mcpu and -mattr. 
llvm-svn: 23222
 2005-09-02 19:27:43 +00:00
Andrew Lenharth
94da25ae50 Pull out Lowering in preperation for multiple ISels. Oh, and get rid of some stuff 
llvm-svn: 23220
 2005-09-02 18:46:02 +00:00
Chris Lattner
813a73e8e9 Decouple fsqrt from gpul optimizations, implementing fsqrt.ll. 
Remove the -enable-gpopt option which is subsumed by feature flags.

llvm-svn: 23218
 2005-09-02 18:33:05 +00:00
Jeff Cohen
930e81f03b Fix VC++ build errors 
llvm-svn: 23210
 2005-09-02 02:51:42 +00:00
Chris Lattner
6f9e01aa94 Restore this patch now that the latent bug has been fixed 
llvm-svn: 23209
 2005-09-02 01:24:55 +00:00
Chris Lattner
a58ee78b78 Revert the previous patch which causes a mysterious regression in toast. 
llvm-svn: 23207
 2005-09-02 00:47:05 +00:00
Chris Lattner
70e3e44ec4 Handle any_extend like zext 
llvm-svn: 23202
 2005-09-02 00:16:09 +00:00