oota-llvm.git
19 years agonew testcase
Chris Lattner [Mon, 12 Sep 2005 05:50:15 +0000 (05:50 +0000)]
new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23312 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRegenerate
Chris Lattner [Mon, 12 Sep 2005 05:30:06 +0000 (05:30 +0000)]
Regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23311 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoRearrange two rules, which apparently makes some versions of bison happier.
Chris Lattner [Mon, 12 Sep 2005 05:29:43 +0000 (05:29 +0000)]
Rearrange two rules, which apparently makes some versions of bison happier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23310 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMake sure to disable 64-bit extensions for this test
Chris Lattner [Sun, 11 Sep 2005 03:50:38 +0000 (03:50 +0000)]
Make sure to disable 64-bit extensions for this test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23309 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix more Visual Studio build problems.
Jeff Cohen [Sat, 10 Sep 2005 02:33:17 +0000 (02:33 +0000)]
Fix more Visual Studio build problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23308 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix miscellaneous Visual Studio build problems.
Jeff Cohen [Sat, 10 Sep 2005 02:00:02 +0000 (02:00 +0000)]
Fix miscellaneous Visual Studio build problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23307 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoimplement Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll.
Chris Lattner [Sat, 10 Sep 2005 01:18:45 +0000 (01:18 +0000)]
implement Transforms/LoopStrengthReduce/dont-hoist-simple-loop-constants.ll.

We used to emit this code for it:

_test:
        li r2, 1     ;; Value tying up a register for the whole loop
        li r5, 0
LBB_test_1:     ; no_exit.2
        or r6, r5, r5
        li r5, 0
        stw r5, 0(r3)
        addi r5, r6, 1
        addi r3, r3, 4
        add r7, r2, r5  ;; should be addi r7, r5, 1
        cmpwi cr0, r7, 701
        blt cr0, LBB_test_1     ; no_exit.2
LBB_test_2:     ; loopexit.2.loopexit
        addi r2, r6, 2
        stw r2, 0(r4)
        blr

now we emit this:

_test:
        li r2, 0
LBB_test_1:     ; no_exit.2
        or r5, r2, r2
        li r2, 0
        stw r2, 0(r3)
        addi r3, r3, 4
        addi r2, r5, 1
        addi r6, r5, 2   ;; whoa, fold those adds!
        cmpwi cr0, r6, 701
        blt cr0, LBB_test_1     ; no_exit.2
LBB_test_2:     ; loopexit.2.loopexit
        addi r2, r5, 2
        stw r2, 0(r4)
        blr

more improvement coming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23306 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agonew testcase
Chris Lattner [Sat, 10 Sep 2005 01:14:37 +0000 (01:14 +0000)]
new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23305 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoPowerPC cannot truncstore i1 natively
Chris Lattner [Sat, 10 Sep 2005 00:21:06 +0000 (00:21 +0000)]
PowerPC cannot truncstore i1 natively

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23304 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAllow targets to say they don't support truncstore i1 (which includes a mask
Chris Lattner [Sat, 10 Sep 2005 00:20:18 +0000 (00:20 +0000)]
Allow targets to say they don't support truncstore i1 (which includes a mask
when storing to an 8-bit memory location), as most don't.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23303 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a missing #include, patch courtesy of Baptiste Lepilleur.
Chris Lattner [Fri, 9 Sep 2005 23:53:39 +0000 (23:53 +0000)]
Add a missing #include, patch courtesy of Baptiste Lepilleur.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23302 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a problem duraid encountered on itanium where this folding:
Chris Lattner [Fri, 9 Sep 2005 23:00:07 +0000 (23:00 +0000)]
Fix a problem duraid encountered on itanium where this folding:
select (x < y), 1, 0 -> (x < y) incorrectly: the setcc returns i1 but the
select returned i32.  Add the zero extend as needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23301 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix a crash viewing dags that have target nodes in them
Chris Lattner [Fri, 9 Sep 2005 22:35:03 +0000 (22:35 +0000)]
Fix a crash viewing dags that have target nodes in them

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23300 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoI forgot that we always spill fp values as 64-bits. Implement spill folding
Chris Lattner [Fri, 9 Sep 2005 21:59:44 +0000 (21:59 +0000)]
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

19 years agoFix a problem that Nate noticed, where spill code was not getting coallesced
Chris Lattner [Fri, 9 Sep 2005 21:46:49 +0000 (21:46 +0000)]
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

19 years agocode cleanup
Chris Lattner [Fri, 9 Sep 2005 20:51:08 +0000 (20:51 +0000)]
code cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23297 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoUse continue in the use-processing loop to make it clear what the early exits
Chris Lattner [Fri, 9 Sep 2005 20:29:51 +0000 (20:29 +0000)]
Use continue in the use-processing loop to make it clear what the early exits
are, simplify logic, and cause things to not be nested as deeply.  This also
uses MRI->areAliases instead of an explicit loop.

No functionality change, just code cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23296 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoLast round of 2-node folds from SD.cpp. Will move on to 3 node ops such
Nate Begeman [Fri, 9 Sep 2005 19:49:52 +0000 (19:49 +0000)]
Last round of 2-node folds from SD.cpp.  Will  move on to 3 node ops such
as setcc and select next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23295 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoremove debugging code *slaps head*
Chris Lattner [Fri, 9 Sep 2005 19:19:20 +0000 (19:19 +0000)]
remove debugging code *slaps head*

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23294 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoWhen spilling a live range that is used multiple times by one instruction,
Chris Lattner [Fri, 9 Sep 2005 19:17:47 +0000 (19:17 +0000)]
When spilling a live range that is used multiple times by one instruction,
only add a reload live range once for the instruction.  This is one step
towards fixing a regalloc pessimization that Nate notice, but is later undone
by the spiller (so no code is changed).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23293 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTeach the code generator that rlwimi is commutable if the rotate amount
Chris Lattner [Fri, 9 Sep 2005 18:17:41 +0000 (18:17 +0000)]
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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23292 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdded targets to speed up build of llc.
Jim Laskey [Fri, 9 Sep 2005 17:50:20 +0000 (17:50 +0000)]
Added targets to speed up build of llc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23291 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoNew testcase, neither should require a register-register copy
Chris Lattner [Fri, 9 Sep 2005 17:48:57 +0000 (17:48 +0000)]
New testcase, neither should require a register-register copy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23290 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd an accessor to provide more checking
Chris Lattner [Fri, 9 Sep 2005 01:15:01 +0000 (01:15 +0000)]
add an accessor to provide more checking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23289 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agouse new accessors to simplify code. Add checking to make sure top-level instr
Chris Lattner [Fri, 9 Sep 2005 01:11:44 +0000 (01:11 +0000)]
use new accessors to simplify code.  Add checking to make sure top-level instr
definitions are void

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23288 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoadd some accessors
Chris Lattner [Fri, 9 Sep 2005 01:11:17 +0000 (01:11 +0000)]
add some accessors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23287 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoIntroduce two new concepts:
Chris Lattner [Fri, 9 Sep 2005 00:39:56 +0000 (00:39 +0000)]
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23286 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix incorrect comment
Chris Lattner [Thu, 8 Sep 2005 23:26:30 +0000 (23:26 +0000)]
Fix incorrect comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23285 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoImplement a complete type inference system for dag patterns, based on the
Chris Lattner [Thu, 8 Sep 2005 23:22:48 +0000 (23:22 +0000)]
Implement a complete type inference system for dag patterns, based on the
constraints defined in the DAG node definitions in the .td files.  This
allows us to infer (and check!) the types for all nodes in the current
ppc .td file.  For example, instead of:

Inst pattern EQV:       (set GPRC:i32:$rT, (xor (xor GPRC:i32:$rA, GPRC:i32:$rB), (imm)<<Predicate_immAllOnes>>))

we now fully infer:

Inst pattern EQV:       (set:void GPRC:i32:$rT, (xor:i32 (xor:i32 GPRC:i32:$rA, GPRC:i32:$rB), (imm:i32)<<Predicate_immAllOnes>>))

from:  (set GPRC:$rT, (not (xor GPRC:$rA, GPRC:$rB)))

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23284 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agowhitespace/comment changes, no functionality diffs
Chris Lattner [Thu, 8 Sep 2005 23:17:26 +0000 (23:17 +0000)]
whitespace/comment changes, no functionality diffs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23283 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoCompute the value types that are natively supported by a target.
Chris Lattner [Thu, 8 Sep 2005 21:43:21 +0000 (21:43 +0000)]
Compute the value types that are natively supported by a target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23282 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoParse information about type constraints on SDNodes
Chris Lattner [Thu, 8 Sep 2005 21:27:15 +0000 (21:27 +0000)]
Parse information about type constraints on SDNodes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23281 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agouse node info in the one place we currently use it
Chris Lattner [Thu, 8 Sep 2005 21:04:46 +0000 (21:04 +0000)]
use node info in the one place we currently use it

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23280 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agostart parsing SDNode info records
Chris Lattner [Thu, 8 Sep 2005 21:03:01 +0000 (21:03 +0000)]
start parsing SDNode info records

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23279 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoMove yet more folds over to the dag combiner from sd.cpp
Nate Begeman [Thu, 8 Sep 2005 20:18:10 +0000 (20:18 +0000)]
Move yet more folds over to the dag combiner from sd.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23278 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd a bunch of stuff needed for node type inference. Move 'BLR' down with
Chris Lattner [Thu, 8 Sep 2005 19:50:41 +0000 (19:50 +0000)]
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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23277 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoFix indentation
Chris Lattner [Thu, 8 Sep 2005 19:47:28 +0000 (19:47 +0000)]
Fix indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23276 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoregenerate
Chris Lattner [Thu, 8 Sep 2005 18:48:47 +0000 (18:48 +0000)]
regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23275 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoAdd support for automatically created anonymous definitions.
Chris Lattner [Thu, 8 Sep 2005 18:48:23 +0000 (18:48 +0000)]
Add support for automatically created anonymous definitions.
This implements Regression/TableGen/AnonDefinitionOnDemand.td

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23274 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agox and X should be structurally identical
Chris Lattner [Thu, 8 Sep 2005 18:47:43 +0000 (18:47 +0000)]
x and X should be structurally identical

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23273 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agonew expression type
Chris Lattner [Thu, 8 Sep 2005 18:47:21 +0000 (18:47 +0000)]
new expression type

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23272 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoregenerate
Chris Lattner [Thu, 8 Sep 2005 18:22:57 +0000 (18:22 +0000)]
regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23271 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTabs to spaces.
Chris Lattner [Thu, 8 Sep 2005 18:22:35 +0000 (18:22 +0000)]
Tabs to spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23270 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoKeep names even when inlining. This allows us to realize that ADDI is:
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-b5e6-96231b3b80d8

19 years agoadd patterns for x?oris?
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-b5e6-96231b3b80d8

19 years agoadd patterns to the addi/addis/mulli etc instructions. Define predicates
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-b5e6-96231b3b80d8

19 years agoAdd patterns for some new instructions, allowing the use of the ineg fragment.
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-b5e6-96231b3b80d8

19 years agoadd some missing PPC backend files
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-b5e6-96231b3b80d8

19 years agoAdd tblgen fpcmp and the nightly tester to the utils folder
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-b5e6-96231b3b80d8

19 years agoignore generated files
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-b5e6-96231b3b80d8

19 years agoRemove some cases handled by the generated portion of the isel
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-b5e6-96231b3b80d8

19 years agoInitial cut of the dag isel generator. This is still very much a work in
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-b5e6-96231b3b80d8

19 years agoAnother round of dag combiner changes. This fixes some missing XOR folds
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-b5e6-96231b3b80d8

19 years agoFix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOT
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-b5e6-96231b3b80d8

19 years agoImplement a common missing fold, (add (add x, c1), c2) -> (add x, c1+c2).
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-b5e6-96231b3b80d8

19 years agoOn non-apple systems, when using -march=ppc32, do not print:
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-b5e6-96231b3b80d8

19 years agoPrint:
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-b5e6-96231b3b80d8

19 years agoFix a bug nate ran into with replacealluseswith. In the recursive cse case,
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-b5e6-96231b3b80d8

19 years agoAdd a new argument to ReplaceAllUsesWith to keep track of nodes deleted by
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-b5e6-96231b3b80d8

19 years agoAdd an option to the DAG Combiner to enable it for beta runs, and turn on
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-b5e6-96231b3b80d8

19 years agoRename a class. These files are being migrated to the new isel and I want to
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 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agoTest the new 64bit i64<->fp functionality
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-b5e6-96231b3b80d8

19 years agoImplement i64<->fp using the fctidz/fcfid instructions on PowerPC when we
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-b5e6-96231b3b80d8

19 years agoregenerate
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-b5e6-96231b3b80d8

19 years agoTighten up the specification to allow TableGen/nested-comment.td to pass
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-b5e6-96231b3b80d8

19 years agonew testcase: tblgen should grok this.
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-b5e6-96231b3b80d8

19 years agoFix up the AssertXext problem, as well as adding it at calls
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-b5e6-96231b3b80d8

19 years agoAdd note about future optimization noted in the ppc compiler writer's guide
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-b5e6-96231b3b80d8

19 years agoAdd accessor for 64bit flag, so that we can tell when it is safe to
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-b5e6-96231b3b80d8

19 years agoNext round of DAGCombiner changes. This version now passes all the tests
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-b5e6-96231b3b80d8

19 years agoAdd a requirement, patch contributed by Henrik Bach.
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-b5e6-96231b3b80d8

19 years agorevert part of the last change, should fix regressions
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-b5e6-96231b3b80d8

19 years agoexplicitly specify an operands list for patterns with inputs (e.g. neg)
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-b5e6-96231b3b80d8

19 years agoinclude the dag isel fragment
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-b5e6-96231b3b80d8

19 years agoask for a dag isel
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-b5e6-96231b3b80d8

19 years agoallow for a target to ask for a dag isel
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-b5e6-96231b3b80d8

19 years agoAdd an option and stuff implementation of a dag isel emitter
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-b5e6-96231b3b80d8

19 years agoFix a checking failure in gs
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-b5e6-96231b3b80d8

19 years agoChange the isel to not break out of the big giant switch. Instead, the
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-b5e6-96231b3b80d8

19 years agorearrange logical ops to group them together more consistently.
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-b5e6-96231b3b80d8

19 years agoAdd AND/OR/XOR
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-b5e6-96231b3b80d8

19 years agoNext round of DAG Combiner changes. Just need to support multiple return
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-b5e6-96231b3b80d8

19 years agoAdd some initial patterns to simple binary instructions, though they
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-b5e6-96231b3b80d8

19 years agoClean up some code from the last checkin
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-b5e6-96231b3b80d8

19 years agoFix a bug in legalize where it would emit two calls to libcalls that return
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-b5e6-96231b3b80d8

19 years agoTest that converting from double to int64 results in one libcall, not one
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-b5e6-96231b3b80d8

19 years agoturn on dag isel by default
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-b5e6-96231b3b80d8

19 years agoMake sure to auto-cse nullary ops
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-b5e6-96231b3b80d8

19 years agoadd a map for nullary ops
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-b5e6-96231b3b80d8

19 years agoAdd help support for -mcpu and -mattr.
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-b5e6-96231b3b80d8

19 years agoFix some buggy logic where we would try to remove nodes with two operands
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-b5e6-96231b3b80d8

19 years agoPull out Lowering in preperation for multiple ISels. Oh, and get rid of some stuff
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-b5e6-96231b3b80d8

19 years agoDon't create zero sized stack objects even for array allocas with a zero
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-b5e6-96231b3b80d8

19 years agoDecouple fsqrt from gpul optimizations, implementing fsqrt.ll.
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 91177308-0d34-0410-b5e6-96231b3b80d8

19 years agonew testcase to ensure fsqrt is generated for correct subtargets only, and
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-b5e6-96231b3b80d8

19 years agoMove a bunch of non-deprecated methods above the "deprecated line"
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-b5e6-96231b3b80d8

19 years agoFix the release build, noticed by Eric van Riet Paap
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-b5e6-96231b3b80d8

19 years agoFix a problem that Dan Berlin noticed, where reassociation would not succeed
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-b5e6-96231b3b80d8

19 years agoAvoid creating garbage instructions, just move the old add instruction
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-b5e6-96231b3b80d8

19 years agonew testcase for recent bugfix
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-b5e6-96231b3b80d8