Chris Lattner [Thu, 8 Sep 2005 17:45:12 +0000 (17:45 +0000)]
Keep names even when inlining. This allows us to realize that ADDI is:
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>:$imm))
not:
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>))
(we keep the ":$imm")
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23269
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 8 Sep 2005 17:40:49 +0000 (17:40 +0000)]
add patterns for x?oris?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23268
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 8 Sep 2005 17:33:10 +0000 (17:33 +0000)]
add patterns to the addi/addis/mulli etc instructions. Define predicates
for matching signed 16-bit and shifted 16-bit ppc immediates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23267
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 8 Sep 2005 17:01:54 +0000 (17:01 +0000)]
Add patterns for some new instructions, allowing the use of the ineg fragment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23266
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 23:57:00 +0000 (23:57 +0000)]
add some missing PPC backend files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23265
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 23:53:49 +0000 (23:53 +0000)]
Add tblgen fpcmp and the nightly tester to the utils folder
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23264
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 23:47:44 +0000 (23:47 +0000)]
ignore generated files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23263
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 23:45:15 +0000 (23:45 +0000)]
Remove some cases handled by the generated portion of the isel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23262
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 23:44:43 +0000 (23:44 +0000)]
Initial cut of the dag isel generator. This is still very much a work in
progress. It correctly parses instructions and pattern fragments and glues
together pattern fragments into instructions.
The only code it generates currently is some boilerplate code for things
like the EntryNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23261
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 7 Sep 2005 23:25:52 +0000 (23:25 +0000)]
Another round of dag combiner changes. This fixes some missing XOR folds
as well as fixing how we replace old values with new values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23260
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 17:34:39 +0000 (17:34 +0000)]
Fix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOT
preserve livevar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23259
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 7 Sep 2005 16:09:19 +0000 (16:09 +0000)]
Implement a common missing fold, (add (add x, c1), c2) -> (add x, c1+c2).
This restores all of stanford to being identical with and without the dag
combiner with the add folding turned off in sd.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23258
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 05:45:33 +0000 (05:45 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23257
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 05:44:14 +0000 (05:44 +0000)]
Print:
'' is not a recognized processor for this target (ignoring processor)
instead of:
is not a recognized processor for this target (ignoring processor)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23256
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 05:37:01 +0000 (05:37 +0000)]
Fix a bug nate ran into with replacealluseswith. In the recursive cse case,
we were losing a node, causing an assertion to fail. Now we eagerly delete
discovered CSE's, and provide an optional vector to keep track of these
discovered equivalences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23255
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 7 Sep 2005 05:36:18 +0000 (05:36 +0000)]
Add a new argument to ReplaceAllUsesWith to keep track of nodes deleted by
this method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23254
91177308-0d34-0410-b5e6-
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Nate Begeman [Wed, 7 Sep 2005 00:15:36 +0000 (00:15 +0000)]
Add an option to the DAG Combiner to enable it for beta runs, and turn on
that option for PowerPC's beta.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23253
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 6 Sep 2005 22:51:34 +0000 (22:51 +0000)]
Rename a class. These files are being migrated to the new isel and I want to
reuse the names
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23252
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Nate Begeman [Tue, 6 Sep 2005 22:23:15 +0000 (22:23 +0000)]
Test the new 64bit i64<->fp functionality
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23251
91177308-0d34-0410-b5e6-
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Nate Begeman [Tue, 6 Sep 2005 22:03:27 +0000 (22:03 +0000)]
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23250
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 6 Sep 2005 21:23:27 +0000 (21:23 +0000)]
regenerate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23249
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 6 Sep 2005 21:23:09 +0000 (21:23 +0000)]
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-
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Chris Lattner [Tue, 6 Sep 2005 21:22:15 +0000 (21:22 +0000)]
new testcase: tblgen should grok this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23247
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Tue, 6 Sep 2005 17:00:23 +0000 (17:00 +0000)]
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-
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Nate Begeman [Tue, 6 Sep 2005 15:30:48 +0000 (15:30 +0000)]
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-
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Nate Begeman [Tue, 6 Sep 2005 15:30:12 +0000 (15:30 +0000)]
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-
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Nate Begeman [Tue, 6 Sep 2005 04:43:02 +0000 (04:43 +0000)]
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-
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Chris Lattner [Tue, 6 Sep 2005 04:07:15 +0000 (04:07 +0000)]
Add a requirement, patch contributed by Henrik Bach.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23242
91177308-0d34-0410-b5e6-
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Andrew Lenharth [Sun, 4 Sep 2005 06:12:19 +0000 (06:12 +0000)]
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-
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Chris Lattner [Sat, 3 Sep 2005 01:28:40 +0000 (01:28 +0000)]
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-
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Chris Lattner [Sat, 3 Sep 2005 01:17:22 +0000 (01:17 +0000)]
include the dag isel fragment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23239
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 3 Sep 2005 01:15:41 +0000 (01:15 +0000)]
ask for a dag isel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23238
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 3 Sep 2005 01:15:25 +0000 (01:15 +0000)]
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-
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Chris Lattner [Sat, 3 Sep 2005 01:14:03 +0000 (01:14 +0000)]
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-
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Chris Lattner [Sat, 3 Sep 2005 01:04:40 +0000 (01:04 +0000)]
Fix a checking failure in gs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23235
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 3 Sep 2005 00:53:47 +0000 (00:53 +0000)]
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-
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Chris Lattner [Sat, 3 Sep 2005 00:21:51 +0000 (00:21 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 22:35:53 +0000 (22:35 +0000)]
Add AND/OR/XOR
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23232
91177308-0d34-0410-b5e6-
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Nate Begeman [Fri, 2 Sep 2005 21:18:40 +0000 (21:18 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 21:18:00 +0000 (21:18 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 20:32:45 +0000 (20:32 +0000)]
Clean up some code from the last checkin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23229
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 20:26:58 +0000 (20:26 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 20:24:10 +0000 (20:24 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 19:53:54 +0000 (19:53 +0000)]
turn on dag isel by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23226
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 19:36:17 +0000 (19:36 +0000)]
Make sure to auto-cse nullary ops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23224
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 19:35:42 +0000 (19:35 +0000)]
add a map for nullary ops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23223
91177308-0d34-0410-b5e6-
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Jim Laskey [Fri, 2 Sep 2005 19:27:43 +0000 (19:27 +0000)]
Add help support for -mcpu and -mattr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23222
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 19:15:44 +0000 (19:15 +0000)]
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-
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Andrew Lenharth [Fri, 2 Sep 2005 18:46:02 +0000 (18:46 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 18:41:28 +0000 (18:41 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 18:33:05 +0000 (18:33 +0000)]
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
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Chris Lattner [Fri, 2 Sep 2005 18:32:22 +0000 (18:32 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 18:16:20 +0000 (18:16 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 07:09:28 +0000 (07:09 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 07:07:58 +0000 (07:07 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 06:38:04 +0000 (06:38 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 06:12:12 +0000 (06:12 +0000)]
new testcase for recent bugfix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23212
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 05:23:22 +0000 (05:23 +0000)]
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-
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Jeff Cohen [Fri, 2 Sep 2005 02:51:42 +0000 (02:51 +0000)]
Fix VC++ build errors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23210
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 01:24:55 +0000 (01:24 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 01:15:01 +0000 (01:15 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:47:05 +0000 (00:47 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:20:32 +0000 (00:20 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:19:37 +0000 (00:19 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:18:10 +0000 (00:18 +0000)]
legalize ANY_EXTEND appropriately
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23204
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 00:17:32 +0000 (00:17 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:16:09 +0000 (00:16 +0000)]
Handle any_extend like zext
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23202
91177308-0d34-0410-b5e6-
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Chris Lattner [Fri, 2 Sep 2005 00:15:30 +0000 (00:15 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:14:40 +0000 (00:14 +0000)]
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-
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Chris Lattner [Fri, 2 Sep 2005 00:13:56 +0000 (00:13 +0000)]
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-
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Chris Lattner [Thu, 1 Sep 2005 23:44:32 +0000 (23:44 +0000)]
Implement small-arguments.ll:test3 by teaching the DAG optimizer that
the results of calls to functions returning small values are properly
sign/zero extended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23198
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 1 Sep 2005 23:43:58 +0000 (23:43 +0000)]
Another case that shouldn't have sign extends: functions returning short
are known to return properly sign extended values, no need for an explicit
extension.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23197
91177308-0d34-0410-b5e6-
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Nate Begeman [Thu, 1 Sep 2005 23:25:49 +0000 (23:25 +0000)]
Fix some code in the current node combining code, spotted when it was moved
over to DAGCombiner.cpp
1. Don't assume that SetCC returns i1 when folding (xor (setcc) constant)
2. Don't duplicate code in folding AND with AssertZext that is handled by
MaskedValueIsZero
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23196
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Nate Begeman [Thu, 1 Sep 2005 23:24:04 +0000 (23:24 +0000)]
Implement first round of feedback from chris (there's still a couple things
left to do).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23195
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Chris Lattner [Thu, 1 Sep 2005 23:08:50 +0000 (23:08 +0000)]
Align functions to 16-byte boundaries, to eliminate noise in performance measurements. This improves the performance of 'treeadd' by about 20% with the dag
isel, restoring it to the pattern-isel level (which happens to get the alignment right).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23194
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Chris Lattner [Thu, 1 Sep 2005 21:48:35 +0000 (21:48 +0000)]
Local labels on darwin apparently start with just 'L', not .L like other
platforms. This reduces executable size and makes shark realize the actual
bounds of functions instead of showing each MBB as a function :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23193
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Jim Laskey [Thu, 1 Sep 2005 21:38:21 +0000 (21:38 +0000)]
1. Use SubtargetFeatures in llc/lli.
2. Propagate feature "string" to all targets.
3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23192
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Jim Laskey [Thu, 1 Sep 2005 21:36:18 +0000 (21:36 +0000)]
This new class provides support for platform specific "features". The intent
is to manage processor specific attributes from the command line. See examples
of use in llc/lli and PowerPCTargetSubtarget.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23191
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Chris Lattner [Thu, 1 Sep 2005 21:31:30 +0000 (21:31 +0000)]
Implement dynamic allocas correctly. In particular, because we were copying
directly out of R1 (without using a CopyFromReg, which uses a chain), multiple
allocas were getting CSE'd together, producing bogus code. For this:
int %foo(bool %X, int %A, int %B) {
br bool %X, label %T, label %F
F:
%G = alloca int
%H = alloca int
store int %A, int* %G
store int %B, int* %H
%R = load int* %G
ret int %R
T:
ret int 0
}
We were generating:
_foo:
stwu r1, -16(r1)
stw r31, 4(r1)
or r31, r1, r1
stw r1, 12(r31)
cmpwi cr0, r3, 0
bne cr0, .LBB_foo_2 ; T
.LBB_foo_1: ; F
li r2, 16
subf r2, r2, r1 ;; One alloca
or r1, r2, r2
or r3, r1, r1
or r1, r2, r2
or r2, r1, r1
stw r4, 0(r3)
stw r5, 0(r2)
lwz r3, 0(r3)
lwz r1, 12(r31)
lwz r31, 4(r31)
lwz r1, 0(r1)
blr
.LBB_foo_2: ; T
li r3, 0
lwz r1, 12(r31)
lwz r31, 4(r31)
lwz r1, 0(r1)
blr
Now we generate:
_foo:
stwu r1, -16(r1)
stw r31, 4(r1)
or r31, r1, r1
stw r1, 12(r31)
cmpwi cr0, r3, 0
bne cr0, .LBB_foo_2 ; T
.LBB_foo_1: ; F
or r2, r1, r1
li r3, 16
subf r2, r3, r2 ;; Alloca 1
or r1, r2, r2
or r2, r1, r1
or r6, r1, r1
subf r3, r3, r6 ;; Alloca 2
or r1, r3, r3
or r3, r1, r1
stw r4, 0(r2)
stw r5, 0(r3)
lwz r3, 0(r2)
lwz r1, 12(r31)
lwz r31, 4(r31)
lwz r1, 0(r1)
blr
.LBB_foo_2: ; T
li r3, 0
lwz r1, 12(r31)
lwz r31, 4(r31)
lwz r1, 0(r1)
blr
This fixes Povray and SPASS with the dag isel, the last two failing cases.
Tommorow we will hopefully turn it on by default! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23190
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Chris Lattner [Thu, 1 Sep 2005 19:38:28 +0000 (19:38 +0000)]
Fix a bug where we were useing HA to get the high part, which seems like it
could cause a miscompile. Fixing this didn't fix the two programs that fail
though. :(
This also changes the implementation to follow the pattern selector more
closely, causing us to select 0 to li instead of lis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23189
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Chris Lattner [Thu, 1 Sep 2005 19:20:44 +0000 (19:20 +0000)]
Do not select the operands being passed into SelectCC. IT does this itself
and selecting early prevents folding immediates into the cmpw* instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23188
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Chris Lattner [Thu, 1 Sep 2005 18:44:10 +0000 (18:44 +0000)]
It is NDEBUG not _NDEBUG
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23186
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Nate Begeman [Thu, 1 Sep 2005 00:33:32 +0000 (00:33 +0000)]
Add the rest of the currently implemented visit routines to the switch
statement in visit().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23185
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Nate Begeman [Thu, 1 Sep 2005 00:19:25 +0000 (00:19 +0000)]
First pass at the DAG Combiner. It isn't used anywhere yet, but it should
be mostly functional. It currently has all folds from SelectionDAG.cpp
that do not involve a condition code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23184
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Nate Begeman [Thu, 1 Sep 2005 00:04:03 +0000 (00:04 +0000)]
Add regression test for efficient codegen of i32 x i32 -> hi32(i64) as
mulhs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23183
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Chris Lattner [Wed, 31 Aug 2005 22:49:51 +0000 (22:49 +0000)]
remove an inappropriate comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23182
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Chris Lattner [Wed, 31 Aug 2005 22:34:59 +0000 (22:34 +0000)]
If a function has live ins/outs, print them
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23181
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Chris Lattner [Wed, 31 Aug 2005 21:09:52 +0000 (21:09 +0000)]
Move FCTIWZ handling out of the instruction selectors and into legalization,
getting them out of the business of making stack slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23180
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Chris Lattner [Wed, 31 Aug 2005 20:25:15 +0000 (20:25 +0000)]
Remove dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23179
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Chris Lattner [Wed, 31 Aug 2005 20:23:54 +0000 (20:23 +0000)]
Move SHL,SHR i64 -> legalizer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23178
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Chris Lattner [Wed, 31 Aug 2005 19:11:36 +0000 (19:11 +0000)]
Remove code that is now dead from the pattern isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23177
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Chris Lattner [Wed, 31 Aug 2005 19:09:57 +0000 (19:09 +0000)]
lower sra_parts on the dag, implementing it for the dag isel, and exposing
the ops to dag optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23176
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Chris Lattner [Wed, 31 Aug 2005 19:01:53 +0000 (19:01 +0000)]
Allow targets to custom expand shifts that are too large for their registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23173
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Chris Lattner [Wed, 31 Aug 2005 18:19:50 +0000 (18:19 +0000)]
Add a testcase for nate's patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23172
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Chris Lattner [Wed, 31 Aug 2005 18:08:46 +0000 (18:08 +0000)]
add assert zext/sext to the dag isel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23171
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Chris Lattner [Wed, 31 Aug 2005 17:48:04 +0000 (17:48 +0000)]
Handle AssertSext/AssertZext nodes, fixing the regressions last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23170
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Jeff Cohen [Wed, 31 Aug 2005 02:47:06 +0000 (02:47 +0000)]
Fix VC++ precedence warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23169
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Nate Begeman [Wed, 31 Aug 2005 01:58:39 +0000 (01:58 +0000)]
Enable generation of AssertSext and AssertZext in the PPC backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23168
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Chris Lattner [Wed, 31 Aug 2005 01:34:29 +0000 (01:34 +0000)]
Fix 'ret long' to return the high and lo parts in the right registers. This
fixes crafty and probably others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23167
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Nate Begeman [Wed, 31 Aug 2005 00:43:49 +0000 (00:43 +0000)]
Sigh, not my day. Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23166
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