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46a780056b
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Author SHA1 Message Date
Chris Lattner
46a780056b regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 21:23:27 +00:00
Chris Lattner
9978332473 Tighten up the specification to allow TableGen/nested-comment.td to pass 
(fixing a bug where / in a /* */ comment would cause it to not close).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23248 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 21:23:09 +00:00
Chris Lattner
5838b21cde new testcase: tblgen should grok this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 21:22:15 +00:00
Andrew Lenharth
46a776e664 Fix up the AssertXext problem, as well as adding it at calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 17:00:23 +00:00
Nate Begeman
92cce90c66 Add note about future optimization noted in the ppc compiler writer's guide 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23245 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 15:30:48 +00:00
Nate Begeman
d401dff796 Add accessor for 64bit flag, so that we can tell when it is safe to 
generate the fun in-register fp<->long instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23244 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 15:30:12 +00:00
Nate Begeman
83e75ecd27 Next round of DAGCombiner changes. This version now passes all the tests 
I have run so far when run before Legalize.  It still needs to pick up the
SetCC folds, and nodes that use SetCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23243 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 04:43:02 +00:00
Chris Lattner
2286cab238 Add a requirement, patch contributed by Henrik Bach. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23242 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-06 04:07:15 +00:00
Andrew Lenharth
f71df33671 revert part of the last change, should fix regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23241 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-04 06:12:19 +00:00
Chris Lattner
e147ceb2fa explicitly specify an operands list for patterns with inputs (e.g. neg) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23240 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:28:40 +00:00
Chris Lattner
6cd40d5888 include the dag isel fragment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23239 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:17:22 +00:00
Chris Lattner
bb38b6f8c0 ask for a dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23238 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:15:41 +00:00
Chris Lattner
f31f09e67c allow for a target to ask for a dag isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23237 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:15:25 +00:00
Chris Lattner
4a24c645c8 Add an option and stuff implementation of a dag isel emitter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23236 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:14:03 +00:00
Chris Lattner
6a8a21ced4 Fix a checking failure in gs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23235 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 01:04:40 +00:00
Chris Lattner
25dae727f3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23234 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 00:53:47 +00:00
Chris Lattner
7cd09cf942 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23233 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-03 00:21:51 +00:00
Chris Lattner
6159fb20c2 Add AND/OR/XOR 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23232 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 22:35:53 +00:00
Nate Begeman
646d7e2727 Next round of DAG Combiner changes. Just need to support multiple return 
values, and then we should be able to hook it up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23231 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 21:18:40 +00:00
Chris Lattner
218a15d02c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23230 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 21:18:00 +00:00
Chris Lattner
6fdcb250d5 Clean up some code from the last checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23229 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 20:32:45 +00:00
Chris Lattner
99c25b86aa Fix a bug in legalize where it would emit two calls to libcalls that return 
i64 values on targets that need that expanded to 32-bit registers.  This fixes
PowerPC/2005-09-02-LegalizeDuplicatesCalls.ll and speeds up 189.lucas from
taking 122.72s to 81.96s on my desktop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23228 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 20:26:58 +00:00
Chris Lattner
c789701360 Test that converting from double to int64 results in one libcall, not one 
and a dead one.  This is a legalize bug


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23227 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 20:24:10 +00:00
Chris Lattner
73e37c35be turn on dag isel by default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23226 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:53:54 +00:00
Chris Lattner
70b9b1098a Make sure to auto-cse nullary ops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:36:17 +00:00
Chris Lattner
ab2eb66f07 add a map for nullary ops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23223 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:35:42 +00:00
Jim Laskey
839615a510 Add help support for -mcpu and -mattr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23222 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:27:43 +00:00
Chris Lattner
6621e3b963 Fix some buggy logic where we would try to remove nodes with two operands 
from the binary ops map, even if they had multiple results.  This latent bug
caused a few failures with the dag isel last night.

To prevent stuff like this from happening in the future, add some really
strict checking to make sure that the CSE maps always match up with reality!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23221 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 19:15:44 +00:00
Andrew Lenharth
aa38ce436b Pull out Lowering in preperation for multiple ISels. Oh, and get rid of some stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23220 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:46:02 +00:00
Chris Lattner
fd88f64934 Don't create zero sized stack objects even for array allocas with a zero 
number of elements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23219 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:41:28 +00:00
Chris Lattner
1e9de3ed2d Decouple fsqrt from gpul optimizations, implementing fsqrt.ll. 
Remove the -enable-gpopt option which is subsumed by feature flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23218 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:33:05 +00:00
Chris Lattner
446a4eaee5 new testcase to ensure fsqrt is generated for correct subtargets only, and 
that the fsqrt feature works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23217 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:32:22 +00:00
Chris Lattner
0271077eba Move a bunch of non-deprecated methods above the "deprecated line" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23216 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:16:20 +00:00
Chris Lattner
a639a43602 Fix the release build, noticed by Eric van Riet Paap 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23215 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 07:09:28 +00:00
Chris Lattner
7b4ad94282 Fix a problem that Dan Berlin noticed, where reassociation would not succeed 
in building maximal expressions before simplifying them.  In particular, i
cases like this:

X-(A+B+X)

the code would consider A+B+X to be a maximal expression (not understanding
that the single use '-' would be turned into a + later), simplify it (a noop)
then later get simplified again.

Each of these simplify steps is where the cost of reassociation comes from,
so this patch should speed up the already fast pass a bit.

Thanks to Dan for noticing this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23214 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 07:07:58 +00:00
Chris Lattner
2cd85da3ed Avoid creating garbage instructions, just move the old add instruction 
to where we need it when converting -(A+B+C) -> -A + -B + -C.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23213 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 06:38:04 +00:00
Chris Lattner
d6c69e9bba new testcase for recent bugfix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23212 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 06:12:12 +00:00
Chris Lattner
368a3aabb2 add some assertions and fix problems where reassociate could access the 
Ops vector out of range


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23211 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 05:23:22 +00:00
Jeff Cohen
7cd57f4c45 Fix VC++ build errors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23210 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 02:51:42 +00:00
Chris Lattner
f505949580 Restore this patch now that the latent bug has been fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23209 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 01:24:55 +00:00
Chris Lattner
08951a32fb Make sure to legalize assert[zs]ext's operand correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23208 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 01:15:01 +00:00
Chris Lattner
5b3224fe7e Revert the previous patch which causes a mysterious regression in toast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23207 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:47:05 +00:00
Chris Lattner
5ab6f5fe66 Teach live intervals to not crash on dead livein regs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23206 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:20:32 +00:00
Chris Lattner
fab08875b7 For values that are live across basic blocks and need promotion, use ANY_EXTEND 
instead of ZERO_EXTEND to eliminate extraneous extensions.  This eliminates
dead zero extensions on formal arguments and other cases on PPC, implementing
the newly tightened up test/Regression/CodeGen/PowerPC/small-arguments.ll test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23205 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:19:37 +00:00
Chris Lattner
13c78e2e5f legalize ANY_EXTEND appropriately 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23204 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:18:10 +00:00
Chris Lattner
4ed11b4b79 Add support for ANY_EXTEND and add a few minor folds for it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23203 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:17:32 +00:00
Chris Lattner
fb8b8a75ff Handle any_extend like zext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23202 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:16:09 +00:00
Chris Lattner
26e04bbf77 Handle ANY_EXTEND like ZERO_EXTEND. Simplify the extend/truncate code on 
the observation that it only has to handle i1 -> i64 and i64 -> i1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23201 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:15:30 +00:00
Chris Lattner
7e122db776 Add a new ANY_EXTEND node, which operates like an extension but has undefined 
top bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23200 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:14:40 +00:00
Chris Lattner
7dd8b05fd7 This should permit NOT and's, not even dead ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23199 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 00:13:56 +00:00