Commit Graph

15196 Commits

Author SHA1 Message Date
Chris Lattner 9b1a6ebf20 Fix a bunch of llc-beta failures on x86 yesterday. Don't allow selection
of unallocatable registers, just because an alias is allocatable.  We were
picking registers like SIL just because ESI was being used.

llvm-svn: 30197
2006-09-08 19:03:30 +00:00
Rafael Espindola d11fb5d13b implement shl and sra
llvm-svn: 30191
2006-09-08 17:36:23 +00:00
Chris Lattner 6c003a7c2d Use __USER_LABEL_PREFIX__ to get the prefix added by the current host.
llvm-svn: 30190
2006-09-08 17:03:56 +00:00
Rafael Espindola 4443c7d60a add the eor (xor) instruction
llvm-svn: 30189
2006-09-08 16:59:47 +00:00
Jim Laskey 177405376c Missing tab
llvm-svn: 30188
2006-09-08 13:06:56 +00:00
Rafael Espindola 778769aafb implement unconditional branches
fix select.ll

llvm-svn: 30186
2006-09-08 12:47:03 +00:00
Evan Cheng 7348403d42 Remove TEST64mr. It's same as TEST64rm since and is commutative.
llvm-svn: 30178
2006-09-08 06:56:55 +00:00
Evan Cheng 11b0a5dbd4 Committing X86-64 support.
llvm-svn: 30177
2006-09-08 06:48:29 +00:00
Nate Begeman c9db83306f We actually do support object file writing, so don't return true (error)
llvm-svn: 30173
2006-09-08 03:42:15 +00:00
Evan Cheng 89c5d04b9b - Identify a vector_shuffle that can be turned into an undef, e.g.
shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).

llvm-svn: 30171
2006-09-08 01:50:06 +00:00
Jim Laskey ae92ce8798 1. Remove condition on delete.
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169
2006-09-07 23:39:26 +00:00
Devang Patel 0142cd129e Untabify.
llvm-svn: 30168
2006-09-07 23:29:19 +00:00
Devang Patel b8164e6131 Use iterative do-while loop instead of recursive DFSPass calls to
reduce amount of stack space used at runtime.

llvm-svn: 30167
2006-09-07 23:22:37 +00:00
Chris Lattner 2785d55446 add a new value for the command line optn
llvm-svn: 30165
2006-09-07 22:32:28 +00:00
Chris Lattner b9e0a9e82f Fix a cross-build issue. The asmsyntax shouldn't be affected by the build
host, it should be affected by the target.  Allow the command line option to
override in either case.

llvm-svn: 30164
2006-09-07 22:29:41 +00:00
Jim Laskey 261779bb45 Make target asm info a property of the target machine.
llvm-svn: 30162
2006-09-07 22:06:40 +00:00
Jim Laskey 0e83541f8b Break out target asm info into separate files.
llvm-svn: 30161
2006-09-07 22:05:02 +00:00
Chris Lattner c465046e65 Throttle back tail duplication to avoid creating really ugly sequences of code.
For Transforms/TailDup/if-tail-dup.ll, f.e., it produces:

_foo:
        movl 8(%esp), %eax
        movl 4(%esp), %ecx
        testl $1, %ecx
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%eax)
LBB1_2: #cond_next
        testl $2, %ecx
        je LBB1_4       #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%eax)
LBB1_4: #cond_next10
        testl $4, %ecx
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%eax)
LBB1_6: #cond_next18
        testl $8, %ecx
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%eax)
        ret
LBB1_8: #return
        ret

instead of:

_foo:
        movl 4(%esp), %eax
        testl $2, %eax
        sete %cl
        movl 8(%esp), %edx
        testl $1, %eax
        je LBB1_2       #cond_next
LBB1_1: #cond_true
        movl $1, (%edx)
        testb %cl, %cl
        jne LBB1_4      #cond_next10
        jmp LBB1_3      #cond_true6
LBB1_2: #cond_next
        testb %cl, %cl
        jne LBB1_4      #cond_next10
LBB1_3: #cond_true6
        movl $1, 4(%edx)
        testl $4, %eax
        je LBB1_6       #cond_next18
        jmp LBB1_5      #cond_true14
LBB1_4: #cond_next10
        testl $4, %eax
        je LBB1_6       #cond_next18
LBB1_5: #cond_true14
        movl $1, 8(%edx)
        testl $8, %eax
        je LBB1_8       #return
        jmp LBB1_7      #cond_true22
LBB1_6: #cond_next18
        testl $8, %eax
        je LBB1_8       #return
LBB1_7: #cond_true22
        movl $1, 12(%edx)
        ret
LBB1_8: #return
        ret

llvm-svn: 30158
2006-09-07 21:30:15 +00:00
Chris Lattner dc4ff5311f Eliminate X86ISD::TEST, using X86ISD::CMP instead. Match X86ISD::CMP patterns
using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.

llvm-svn: 30156
2006-09-07 20:33:45 +00:00
Chris Lattner 1b7f09cdf7 Some notes on better load folding we could do
llvm-svn: 30155
2006-09-07 20:32:01 +00:00
Evan Cheng a9411c0977 Consistency.
llvm-svn: 30152
2006-09-07 19:03:48 +00:00
Evan Cheng 95b3dde8bb Fix pasto that was breaking x86 tests.
llvm-svn: 30151
2006-09-07 18:50:20 +00:00
Chris Lattner 721fc38342 Add new option to leave asm names alone
llvm-svn: 30149
2006-09-07 18:20:41 +00:00
Jim Laskey c7abe471fe Make the x86 asm flavor part of the subtarget info.
llvm-svn: 30146
2006-09-07 12:23:47 +00:00
Chris Lattner 707339a57b Fix CodeGen/Generic/2006-09-06-SwitchLowering.ll, a bug where SDIsel inserted
too many phi operands when lowering a switch to branches in some cases.

llvm-svn: 30142
2006-09-07 01:59:34 +00:00
Evan Cheng 7f3f0973e6 Clean up.
llvm-svn: 30140
2006-09-07 01:17:57 +00:00
Evan Cheng 4c7a3fbdea Watch out for variable_ops instructions.
llvm-svn: 30135
2006-09-06 20:32:45 +00:00
Evan Cheng ac22e54131 Variable ops instructions may ignore the last few operands for code emission.
llvm-svn: 30134
2006-09-06 20:24:14 +00:00
Jim Laskey ef94ebb666 Oops - forgot to update banner.
llvm-svn: 30131
2006-09-06 19:21:41 +00:00
Jim Laskey 681ecbb3b3 Separate target specifc asm properties from asm printers.
llvm-svn: 30127
2006-09-06 18:35:33 +00:00
Jim Laskey a6211dcdad Separate target specific asm properties from the asm printers.
llvm-svn: 30126
2006-09-06 18:34:40 +00:00
Rafael Espindola abd8bcbe5e add the orr instruction
llvm-svn: 30125
2006-09-06 18:03:12 +00:00
Evan Cheng ddfb10b5af Only call isUse/isDef on register operands
llvm-svn: 30122
2006-09-05 20:32:06 +00:00
Chris Lattner 2656932979 Bugfix to work with the two-addr changes that have been made in the tree recently
llvm-svn: 30121
2006-09-05 20:27:32 +00:00
Chris Lattner 2cb238320d Only call isUse/isDef on register operands
llvm-svn: 30118
2006-09-05 20:19:27 +00:00
Chris Lattner 45456d44e3 Don't call isDef on non-registers
llvm-svn: 30117
2006-09-05 20:02:51 +00:00
Chris Lattner 845b223da4 Fix Duraid's changes to work when TLI is null. This fixes the failing
lowerinvoke regtests.

llvm-svn: 30115
2006-09-05 17:48:07 +00:00
Chris Lattner 0dce3311c4 Change the default to 0, which means 'default'.
llvm-svn: 30114
2006-09-05 17:39:15 +00:00
Evan Cheng 7a150d3113 Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll
llvm-svn: 30113
2006-09-05 08:32:49 +00:00
Evan Cheng 17c28b2e0e JIT encoding bug.
llvm-svn: 30112
2006-09-05 05:59:25 +00:00
Chris Lattner e3d2e1e41e Update the X86 JIT to make it work with the new two-addr changes. This also
adds assertions that check to make sure every operand gets emitted.

llvm-svn: 30110
2006-09-05 02:52:35 +00:00
Chris Lattner af23f9b5f6 Completely eliminate def&use operands. Now a register operand is EITHER a
def operand or a use operand.

llvm-svn: 30109
2006-09-05 02:31:13 +00:00
Chris Lattner 13a5dcddce Fix a long-standing wart in the code generator: two-address instruction lowering
actually *removes* one of the operands, instead of just assigning both operands
the same register.  This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.

Changing this also gets rid of a bunch of hacky code in various places.

This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.

llvm-svn: 30108
2006-09-05 02:12:02 +00:00
Andrew Lenharth 3852b2ce7e jmp_bufs are this big on alpha.
llvm-svn: 30107
2006-09-05 00:22:25 +00:00
Rafael Espindola 8386105f3f add support for returning 64bit values
llvm-svn: 30103
2006-09-04 19:05:01 +00:00
Chris Lattner 49c45d3a13 Fix some X86 JIT failures. This should really come from TargetJITInfo.
llvm-svn: 30102
2006-09-04 18:48:41 +00:00
Chris Lattner 1eed04d1fb Correct fix for a crasher on functions with live in values
llvm-svn: 30099
2006-09-04 18:27:40 +00:00
Chris Lattner bff0b5969f Hack around a regression I introduced yesterday
llvm-svn: 30098
2006-09-04 18:20:15 +00:00
Duraid Madina 373be1d1a2 forgot this
llvm-svn: 30097
2006-09-04 07:44:11 +00:00
Duraid Madina cf6749e4c0 add setJumpBufSize() and setJumpBufAlignment() to target-lowering.
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example

llvm-svn: 30095
2006-09-04 06:21:35 +00:00
Chris Lattner a916db12e4 new file
llvm-svn: 30082
2006-09-04 04:16:09 +00:00
Chris Lattner 12e97307a1 Completely rearchitect the interface between targets and the pass manager.
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.

llvm-svn: 30081
2006-09-04 04:14:57 +00:00
Chris Lattner e8ce162969 Add accessor
llvm-svn: 30080
2006-09-04 04:08:58 +00:00
Chris Lattner 2f77922d30 Add explicit doInitialization/doFinalization methods instead of making
the FunctionPassManager redo this for each function.

llvm-svn: 30079
2006-09-04 04:07:39 +00:00
Chris Lattner 2f93c0fd33 remove #include
llvm-svn: 30078
2006-09-04 04:06:01 +00:00
Chris Lattner 0fc4541c67 Simplify target construction.
llvm-svn: 30070
2006-09-03 18:44:02 +00:00
Chris Lattner ad36544457 eliminate use of TM.getName()
llvm-svn: 30068
2006-09-03 18:37:12 +00:00
Rafael Espindola 5328ba96e1 add the SETULT condition code
llvm-svn: 30067
2006-09-03 13:19:16 +00:00
Chris Lattner 8584e940b8 Avoid beating on the mi2i map when we know the answer already.
llvm-svn: 30066
2006-09-03 08:07:11 +00:00
Chris Lattner 774785a79d minor speedup
llvm-svn: 30065
2006-09-03 07:53:50 +00:00
Chris Lattner 7cc20d418b Fix Regression/CodeGen/Generic/2006-09-02-LocalAllocCrash.ll on X86.
Just because an alias of a register is available, it doesn't mean that we
can arbitrarily evict the register.

llvm-svn: 30064
2006-09-03 07:15:37 +00:00
Chris Lattner bd79458b0e When deleting a machine instruction, make sure to remove it from the
livevariables information.  This fixes several regalloc=local failures on x86

llvm-svn: 30062
2006-09-03 00:06:08 +00:00
Chris Lattner f8f724a2b1 Move two methods out of line, make them work when the record for a machine
instruction includes physregs.

llvm-svn: 30061
2006-09-03 00:05:09 +00:00
Chris Lattner 5e02f4e141 Count the time for a pass to ReleaseMemory against that pass. Not doing this
was under accounting for the time that livevariables cost

llvm-svn: 30060
2006-09-02 23:09:24 +00:00
Owen Anderson 19b80e76df Make ArgumentPromotion handle recursive functions that pass pointers in their recursive calls.
llvm-svn: 30057
2006-09-02 21:19:44 +00:00
Rafael Espindola c585b6919b add more condition codes
llvm-svn: 30056
2006-09-02 20:24:25 +00:00
Nick Lewycky 8e5599354a Improve handling of SelectInst.
Reorder operations to remove duplicated work.
Fix to leave floating-point types out of the optimization.
Add tests to predsimplify.ll for SwitchInst and SelectInst handling.

llvm-svn: 30055
2006-09-02 19:40:38 +00:00
Chris Lattner f2ce949ae9 improve compat with certain versions of GCC (on cygwin?)
llvm-svn: 30054
2006-09-02 17:37:30 +00:00
Chris Lattner 75742e532a Iteration is required for some cases, even if they don't occur in crafty.
Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll

llvm-svn: 30050
2006-09-02 05:32:53 +00:00
Chris Lattner 5a56d30906 When joining two intervals where the RHS is really simple, use a light-weight
method for joining the live ranges instead of the fully-general one.

llvm-svn: 30049
2006-09-02 05:26:59 +00:00
Evan Cheng 2c4e0f120f Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen.
Suppose the TokenFactor can reach the Op:

       [Load chain]
           ^
           |
         [Load]
         ^    ^
         |    |
        /      \-
       /         |
      /          [Op]
     /          ^ ^
     |        ..  |
     |       /    |
   [TokenFactor]  |
       ^          |
       |          |
        \        /
         \      /
         [Store]

If we move the Load below the TokenFactor, we would have created a cycle in
the DAG.

llvm-svn: 30040
2006-09-01 22:52:28 +00:00
Chris Lattner bad9d2ee49 Use a couple of multiclass patterns to factor some integer ops.
llvm-svn: 30039
2006-09-01 22:28:02 +00:00
Chris Lattner 38e6d1d5af remove a bunch of comments
llvm-svn: 30038
2006-09-01 22:16:22 +00:00
Anton Korobeynikov 6c6a70f999 - Fixed broken Win32 build
- Removed warning about clobbered parameter in Bytecode/Reader

llvm-svn: 30026
2006-09-01 20:35:17 +00:00
Evan Cheng 88c268b621 Remove extra spaces.
llvm-svn: 30025
2006-09-01 18:45:22 +00:00
Evan Cheng 31c99969a9 Last check-in was a mistake...
I've been told apple gcc version number is not guaranteed to increase
monotonically. Change the preprocess condition to make it less risky.

The configuration change is done during the middle 10.4 life cycle so we have
to check __APPLE_CC. For future OS X release, we should be able to assume
-fenable-cxa-atexit is the default.

llvm-svn: 30024
2006-09-01 18:42:59 +00:00
Evan Cheng d176cdf76d *** empty log message ***
llvm-svn: 30023
2006-09-01 18:40:46 +00:00
Evan Cheng e93762d36e Allow legalizer to expand ISD::MUL using only MULHS in the rare case that is
possible and the target only supports MULHS.

llvm-svn: 30022
2006-09-01 18:17:58 +00:00
Jim Laskey 5352d0cc4d Corrections.
llvm-svn: 30021
2006-09-01 12:55:05 +00:00
Evan Cheng 4b8b6ae924 Better comments.
llvm-svn: 30017
2006-09-01 07:09:56 +00:00
Evan Cheng c5fddc566c Yikes. This requires checking apple gcc version.
llvm-svn: 30016
2006-09-01 07:00:46 +00:00
Chris Lattner 93c067dc2d Pull some code out of a hot recursive function because the common case doesn't
need recursion.

llvm-svn: 30015
2006-09-01 07:00:23 +00:00
Chris Lattner 3eac2c87aa Reserve space in the ValueNumberInfo vector. This speeds up live interval
analysis 16% on crafty.

Wrap long lines.

llvm-svn: 30012
2006-09-01 06:10:18 +00:00
Chris Lattner f765351978 Iterative coallescing doesn't buy us anything (we get identical results on
crafty with and without it).  Removing it speeds up live intervals 6%.

llvm-svn: 30010
2006-09-01 04:02:42 +00:00
Nick Lewycky f6f529d008 Don't confuse canonicalize and lookup. Fixes predsimplify.reg4.ll. Also
corrects missing optimization opportunity removing cases from a switch.

llvm-svn: 30009
2006-09-01 03:26:35 +00:00
Evan Cheng 31305c45da DAG combiner fix for rotates. Previously the outer-most condition checks
for ROTL availability. This prevents it from forming ROTR for targets that
has ROTR only.

llvm-svn: 29997
2006-08-31 07:41:12 +00:00
Chris Lattner a700a19d04 Add a special case that speeds up coallescing a bit, but not enough.
llvm-svn: 29996
2006-08-31 06:48:26 +00:00
Chris Lattner 78cca7243c Delete copies as they are coallesced instead of waiting until the end.
llvm-svn: 29995
2006-08-31 05:58:59 +00:00
Chris Lattner aa36808fd3 avoid calling the virtual isMoveInstr method endlessly by caching its results.
llvm-svn: 29994
2006-08-31 05:54:43 +00:00
Nick Lewycky 08674ab707 Properties where both Values weren't in the union (as being equal to
another Value) weren't being found by findProperties.

This fixes predsimplify.ll test6, a missed optimization opportunity.

llvm-svn: 29991
2006-08-31 00:39:16 +00:00
Chris Lattner cb74860cce Fix a compiler crash bootstrapping llvm-gcc.
llvm-svn: 29989
2006-08-30 23:02:29 +00:00
Chris Lattner 9543866c27 Guess what happens when asserts are disabled. :(
Also, the assert could never fire due to || instead of &&.

llvm-svn: 29977
2006-08-30 20:37:06 +00:00
Chris Lattner f5bed76353 Instantiate Statistic<> in one place, not in every .o file that uses it.
llvm-svn: 29971
2006-08-30 04:17:00 +00:00
Nick Lewycky 5f8f9af65c Move to using the EquivalenceClass ADT. Removes SynSets.
If a branch's condition has become a ConstantBool, simplify it immediately.
Removing the edge saves work and exposes up more optimization opportunities
in the pass.
Add support for SelectInst.

llvm-svn: 29970
2006-08-30 02:46:48 +00:00
Chris Lattner 34434e97c9 Teach the coallescer to coallesce live intervals joined by an arbitrary
number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced.  Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.

llvm-svn: 29968
2006-08-29 23:18:15 +00:00
Devang Patel f489d0f85c Do not rely on std::sort and std::erase to get list of unique
exit blocks. The output is dependent on addresses of basic block.

Add and use Loop::getUniqueExitBlocks.

llvm-svn: 29966
2006-08-29 22:29:16 +00:00
Evan Cheng 6d464146d0 Minor asm fix.
llvm-svn: 29965
2006-08-29 22:14:48 +00:00
Evan Cheng b28800f4d5 Remove dead code.
llvm-svn: 29962
2006-08-29 21:42:58 +00:00
Evan Cheng dfb85155dc Don't performance load/op/store transformation if op produces a floating point
or vector result. X86 does not have load/mod/store variants of those
instructions.

llvm-svn: 29957
2006-08-29 18:37:37 +00:00
Evan Cheng 358b9ed98a - Enable x86 isel preprocessing by default unless -fast is specified.
- Also disable isel load folding if -fast.

llvm-svn: 29956
2006-08-29 18:28:33 +00:00
Jim Laskey 2eebe8b05e Handle callee saved registers in dwarf frame info (lead up to exception
handling.)

llvm-svn: 29954
2006-08-29 16:24:26 +00:00
Jim Laskey 82dc16c0a7 Tidy up options.
llvm-svn: 29953
2006-08-29 15:13:10 +00:00
Evan Cheng c07feb14b0 Avoid making unneeded load/mod/store transformation which can hurt performance.
llvm-svn: 29952
2006-08-29 06:44:17 +00:00
Evan Cheng e5570a4c3f Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG.
llvm-svn: 29951
2006-08-29 06:42:35 +00:00
Owen Anderson a8a2e5c666 Clean up a bit.
llvm-svn: 29950
2006-08-29 06:10:56 +00:00
Nate Begeman 18f0329cfc Make ppc64 jit kinda work right. About 2/3 of Olden passes with this,
there are clearly some encoding bugs lurking in there somewhere.

llvm-svn: 29949
2006-08-29 02:30:59 +00:00
Nick Lewycky b2e8ae1700 Add PredicateSimplifier pass. Collapses equal variables into one form
and simplifies expressions. This implements the optimization described
in PR807.

llvm-svn: 29947
2006-08-28 22:44:55 +00:00
Evan Cheng 00884b51c5 On Mac, print jump table entries after the function to work around a linker issue.
llvm-svn: 29946
2006-08-28 22:14:16 +00:00
Evan Cheng 64a9e28846 Add an optional pass to preprocess the DAG before x86 isel to allow selecting more load/mod/store instructions.
llvm-svn: 29943
2006-08-28 20:10:17 +00:00
Owen Anderson 62c84fe371 Make LoopUnroll fold excessive BasicBlocks. This results in a significant speedup of
gccas on 252.eon

llvm-svn: 29936
2006-08-28 02:09:46 +00:00
Reid Spencer e7141c8be6 For PR387:
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934
2006-08-28 01:02:49 +00:00
Chris Lattner 97c9f20c52 simplify AnalysisGroup registration, eliminating one typeid call.
llvm-svn: 29932
2006-08-28 00:42:29 +00:00
Chris Lattner 7aa139994f Silence -Woverloaded-virtual warnings.
llvm-svn: 29929
2006-08-28 00:09:00 +00:00
Chris Lattner c2d3d3112e eliminate RegisterOpt. It does the same thing as RegisterPass.
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
Chris Lattner a4c1bc74b9 Fit to 80 cols
llvm-svn: 29922
2006-08-27 22:31:12 +00:00
Chris Lattner 3c9b2420df Eliminate RegisterAnalysis. RegisterPass now does all that is necessary.
llvm-svn: 29921
2006-08-27 22:30:17 +00:00
Chris Lattner fbb46500cf We no longer care whether something is an opt vs analysis pass, only whether
something is a pass vs an analysis group now.  Simplify interfaces.

llvm-svn: 29920
2006-08-27 22:21:55 +00:00
Chris Lattner 2de6e33c06 Minor code cleanups
llvm-svn: 29917
2006-08-27 22:10:29 +00:00
Chris Lattner 3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Chris Lattner 2c3683a901 typo fix
llvm-svn: 29910
2006-08-27 12:47:48 +00:00
Chris Lattner 3e5d60fcea Add external definitions for commonly-used template specializations and add
anchor methods to others.  This eliminates the vtable/template method bloat
in .o files that defining a cl::opt used to impose (~4K per .o file for one
cp::opt<unsigned>).

llvm-svn: 29909
2006-08-27 12:45:47 +00:00
Evan Cheng c3acfc0b10 Do not use getTargetNode() and SelectNodeTo() which takes more than 3
SDOperand arguments. Use the variants which take an array and number instead.

llvm-svn: 29907
2006-08-27 08:14:06 +00:00
Evan Cheng 849f4bf8dd Eliminate SelectNodeTo() and getTargetNode() variants which take more than
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.

llvm-svn: 29905
2006-08-27 08:08:54 +00:00
Chris Lattner 4042e871ce Fix target matching weights, so that ppc-darwin modules are codegen with the
ppc target, not the itanium target, when run on an itanium machine.
This should fix the CodeGen/PowerPC regtest failures on itanium.

llvm-svn: 29903
2006-08-26 21:33:05 +00:00
Nate Begeman 7851db75d9 Properly size the string table, and emit symbol table and string table
entries in the correct order, fixing several fixmes.

llvm-svn: 29902
2006-08-26 15:46:34 +00:00
Evan Cheng 34b70eea5c SelectNodeTo now returns a SDNode*.
llvm-svn: 29901
2006-08-26 08:00:10 +00:00
Evan Cheng 61413a3d72 Select() no longer require Result operand by reference.
llvm-svn: 29898
2006-08-26 05:34:46 +00:00
Chris Lattner 122f2bcdc2 Simplifications to liveinterval analysis, no functionality change.
llvm-svn: 29896
2006-08-26 01:28:16 +00:00
Evan Cheng ab8297f92d Match tblgen changes.
llvm-svn: 29895
2006-08-26 01:07:58 +00:00
Evan Cheng 2d48722e92 Match tblgen changes; clean up.
llvm-svn: 29894
2006-08-26 01:05:16 +00:00
Chris Lattner c664efe223 Give a good error message when we try to jit inline asm.
llvm-svn: 29891
2006-08-26 00:47:03 +00:00
Chris Lattner f4f0b1995c Completely change the way that joining with physregs is implemented. This
paves the way for future changes, increases coallescing opportunities (in
theory, not witnessed in practice), and eliminates the really expensive
LiveIntervals::overlapsAliases method.

llvm-svn: 29890
2006-08-25 23:41:24 +00:00
Evan Cheng 1b200574ad Add a comment.
llvm-svn: 29889
2006-08-25 23:29:06 +00:00
Jim Laskey fb96c74874 Tidy up.
llvm-svn: 29888
2006-08-25 22:56:30 +00:00
Owen Anderson 403b95af47 Fix a crash related to updating Phi nodes in the original header block. This was
causing a crash in 175.vpr

llvm-svn: 29887
2006-08-25 22:13:55 +00:00
Owen Anderson 8e4b029573 Add an assertion to check that we're really preserving LCSSA.
llvm-svn: 29886
2006-08-25 22:12:36 +00:00
Evan Cheng d7572fb234 Encode pc-relative conditional branch offset as pc+(num of bytes / 4). The
asm printer will print it as offset*4. e.g. bne cr0, $+8.

The PPC code emitter was expecting the offset to be number of instructions, not
number of bytes. This fixes a whole bunch of JIT failures.

llvm-svn: 29885
2006-08-25 21:54:44 +00:00
Reid Spencer 50eac3b8ab For PR797:
Make the Win32 code exception free (untested/uncompiled) which forced some
interface changes which had ripple effect. This should be the last of 797.

llvm-svn: 29884
2006-08-25 21:37:17 +00:00
Reid Spencer 51e6f68b47 For PR797:
Final commit for this bug. This removes the last EH holdouts in LLVM
and turns off exception support by using the -fno-exceptions option. This
leads to the following reduction in library and executable sizes:
                DEBUG BUILD                RELEASE BUILD
         before     after   delta     before   after    delta
lib    162,328K  157,616K   4,712    17,864K  16,416K  1,448K
bin    571,444K  557,156K  14,288    63,296K   56,996K 6,300K

Debug   Improvement: 19,000K (2.59%)
Release Improvement:  7,748K (9.55%)

llvm-svn: 29882
2006-08-25 19:54:53 +00:00
Jim Laskey 92206f9404 Consolidate callee saved register information so that it can me used by debug
information and exception handling.

llvm-svn: 29881
2006-08-25 19:45:51 +00:00
Jim Laskey d51ce619c3 Fix some comments.
llvm-svn: 29880
2006-08-25 19:40:59 +00:00
Jim Laskey f8bf1e6034 Allow for register numbers > 31.
llvm-svn: 29879
2006-08-25 19:39:52 +00:00
Rafael Espindola 98dc23fd1f use @ for comments
store LR in an arbitrary stack slot
add support for writing varargs functions

llvm-svn: 29876
2006-08-25 17:55:16 +00:00
Reid Spencer f25aebf8cf For PR797:
Remove exception throwing/handling from lib/Bytecode, and adjust its users
to compensate for changes in the interface.

llvm-svn: 29875
2006-08-25 17:43:11 +00:00
Owen Anderson 8cca95cf5d Reapply the indvars patch, since nothing blew up last night.
llvm-svn: 29874
2006-08-25 17:41:25 +00:00
Nate Begeman 89fa9c7d65 Get closer to handling globals correctly. We now generally get them in the
right section.

llvm-svn: 29871
2006-08-25 06:36:58 +00:00
Owen Anderson 94446a4267 Revert my previous patch. Since there are some major changes that went in today,
I'm going to wait to put this in HEAD until tomorrow, so as not to clutter the nightly
tester.

llvm-svn: 29868
2006-08-25 03:45:57 +00:00
Owen Anderson 15a6423431 Specify that indvars actually preserve LCSSA. This has been done for a while, but I
forgot to put in the analysis usage.

llvm-svn: 29867
2006-08-25 03:32:13 +00:00
Reid Spencer ec0f205dc1 For PR797:
Remove exception handling from the bytecode archiver and adjust the llvm-ar
tool to accommodate the new interfaces.

llvm-svn: 29866
2006-08-24 23:45:08 +00:00
Chris Lattner 24d4208c97 When replacing value numbers, make sure to compactify the value # space.
llvm-svn: 29865
2006-08-24 23:22:59 +00:00
Chris Lattner ac40a81253 We compile this into:
_swap_16:
        slwi r2, r3, 24
        rlwimi r2, r3, 8, 8, 15
        srwi r3, r2, 16
        blr

now.

llvm-svn: 29864
2006-08-24 23:06:02 +00:00
Chris Lattner fb6bc15d5d Owen implemented this.
llvm-svn: 29863
2006-08-24 23:03:33 +00:00
Chris Lattner bdf121060c Take advantage of the recent improvements to the liveintervals set (tracking
instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:

1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
   better solution.
3. Implements PR865, "coallescing" away the second copy in code like:

   A = B
   ...
   B = A

This also includes changes to symbolically print registers in intervals
when possible.

llvm-svn: 29862
2006-08-24 22:43:55 +00:00
Reid Spencer a38aa72771 Remove a character to avoid line exceeding 80 cols.
llvm-svn: 29860
2006-08-24 22:39:25 +00:00
Owen Anderson e001d811ba Implement unrolling of multiblock loops. This significantly improves the
utility of the LoopUnroll pass.

Also, add a testcase for multiblock-loop unrolling.

llvm-svn: 29859
2006-08-24 21:28:19 +00:00
Reid Spencer b5d6b8f26d For PR797:
Adjust implementation to match the new interface after exception handling
was removed in the Unix verison. NOTE: this hasn't been compiled yet!

llvm-svn: 29858
2006-08-24 18:58:37 +00:00
Rafael Espindola 29e4875f57 add the "eq" condition code
implement a movcond instruction

llvm-svn: 29857
2006-08-24 17:19:08 +00:00
Rafael Espindola fe03fe9bf4 create a generic bcond instruction that has a conditional code argument
llvm-svn: 29856
2006-08-24 16:13:15 +00:00
Rafael Espindola e08b9853cc initial support for branches
llvm-svn: 29854
2006-08-24 13:45:55 +00:00
Nate Begeman 3cb3921a60 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it
does emit linkable .o files in very simple cases.

llvm-svn: 29850
2006-08-23 21:08:52 +00:00
Reid Spencer 2fe39fea85 For PR797:
This library no longer throws nor handles exceptions, so turn off the
REQUIRES_EH flag.

llvm-svn: 29849
2006-08-23 20:39:25 +00:00
Reid Spencer d62a96323d For PR797:
Final remove of exception handling from this file. lib/System can no longer
throw exceptions so there's no need for try/catch blocks here.

llvm-svn: 29848
2006-08-23 20:37:59 +00:00
Reid Spencer dd27929918 Turn off exception handling for this library. It no longer throws nor
handles exceptions.

llvm-svn: 29847
2006-08-23 20:35:51 +00:00
Reid Spencer e4ca722199 For PR797:
Final removal of exceptions from lib/System and adjustment of users to
accommodate.

llvm-svn: 29846
2006-08-23 20:34:57 +00:00
Reid Spencer 879ed5ab9c For PR797:
Eliminate exception throwing from Path::renamePathOnDisk and adjust its
users correspondingly.

llvm-svn: 29843
2006-08-23 07:30:48 +00:00
Reid Spencer bd156a901d Make the ProgramName variable a std::string so we can eliminate the path
portion fo the program name via sys::Path().getLast(). This makes error
messages more readable since this is invariably used only in error
messages.  Instead of:
  /path/to/llvm/bin/directory/toolname: error message
we will now get:
  toolname: error message
Also, since we always have a program name (even if its defaulted), don't
check to see if it is set or not when generating error messages. This
eliminates a bunch of constant strings, saving a little under 1K of data.

llvm-svn: 29842
2006-08-23 07:10:06 +00:00
Reid Spencer 51edba15c6 For PR797:
Remove exception throwing from Path::getDirectoryContents and its users.

llvm-svn: 29841
2006-08-23 06:56:27 +00:00
Reid Spencer 8db844241b For PR797:
Remove exceptions from the Path::create*OnDisk methods. Update their users
to handle error messages via arguments and result codes.

llvm-svn: 29840
2006-08-23 00:39:35 +00:00
Reid Spencer a1a7a35267 For PR797:
Adjust code to compensate for Path class interface change.

llvm-svn: 29837
2006-08-22 23:54:35 +00:00
Reid Spencer 9d2f19c7e4 For PR797:
Change the Path::make*OnDisk methods exception free and adjust their usage.

llvm-svn: 29836
2006-08-22 23:27:23 +00:00
Reid Spencer 7e73c51351 Update for changes in Path class interface for exception removal.
llvm-svn: 29834
2006-08-22 22:46:39 +00:00
Reid Spencer 6ba87bbfd3 Make the sys::Path::GetTemporaryDirectory method not throw exceptions and
adjust users of it to compensate.

llvm-svn: 29831
2006-08-22 19:01:30 +00:00
Chris Lattner 2e9f1bc056 Improve the LiveInterval class to keep track of which machine instruction
defines each value# tracked by the interval.  This will be used to improve
coallescing.

llvm-svn: 29830
2006-08-22 18:19:46 +00:00
Reid Spencer ffa6f2581d Fix another occurrence of inverted logic on the result of MappedFile::map
llvm-svn: 29828
2006-08-22 18:03:02 +00:00
Reid Spencer c5baec42a7 Inverse the error check logic for the MappedFile::map() call. It returns
a null pointer when there is an error.

llvm-svn: 29827
2006-08-22 17:58:50 +00:00
Reid Spencer b1f9935407 Don't throw needlessly. Failure of gettimeofday is *very* unlinkely so
just return MinTime if that should ever happen.

llvm-svn: 29826
2006-08-22 17:38:44 +00:00
Reid Spencer 0a9054ba97 For PR797:
Adjust the use of MappedFile to its new non-throwing interface. We just
propagate the exceptions if an error occurs. This will get cleaned up
later, incrementally.

llvm-svn: 29820
2006-08-22 16:10:12 +00:00
Reid Spencer e5d1fd8080 For PR797:
Make the Bytecode Reader use setjmp/longjump instead of exceptions to handle
errors. The alternative was even uglier than setjmp/longjump as it would
impact the interface and workings of nearly every function in the reader.

llvm-svn: 29819
2006-08-22 16:09:19 +00:00
Reid Spencer 64c5920336 For PR797:
Adjust to new interface for MappedFile. Note that the new "throw"
statements will be removed later.

llvm-svn: 29818
2006-08-22 16:07:44 +00:00
Reid Spencer efdc3a13cd For PR797:
Adjust users of MappedFile to its new non-throwing interface.  Note that in
most cases the lazy step of just throwing after a call to MappedFile was
installed. This was done in the name of incremental changes. Getting rid of
the new throw statements will take adjustment of interfaces and propagation
of errors to higher levels.  Those changes will come in subsequent patches.

llvm-svn: 29817
2006-08-22 16:06:27 +00:00
Reid Spencer df1297dd3a For PR797:
Make MappedFile not throw any exceptions.

llvm-svn: 29816
2006-08-22 16:04:22 +00:00
Reid Spencer 8a77bb9815 For PR797:
Fix a bug in my last patch that botched file redirection by using explicit
scoping of if statements.

llvm-svn: 29815
2006-08-22 15:56:52 +00:00
Rafael Espindola ea500426d6 add a README.txt
llvm-svn: 29814
2006-08-22 12:22:46 +00:00
Reid Spencer 6ad2a91fb3 Make an error message a little more intelligible.
llvm-svn: 29808
2006-08-22 05:28:38 +00:00
Chris Lattner 1d77a0ff88 Print physreg names symbolically in dumps
llvm-svn: 29805
2006-08-21 23:03:54 +00:00
Chris Lattner 213159a6ee Print debug info as:
*** Register mapping ***
  reg 1024 -> %reg1028
  reg 1026 -> EAX
  reg 1027 -> %reg1028

instead of:

*** Register mapping ***
  reg 1024 -> reg 1028
  reg 1026 -> reg 15
  reg 1027 -> reg 1028

llvm-svn: 29803
2006-08-21 22:56:29 +00:00
Rafael Espindola d0dee77718 initial support for select
llvm-svn: 29802
2006-08-21 22:00:32 +00:00
Jim Laskey b6ac11e120 Adding C++ member support.
llvm-svn: 29799
2006-08-21 21:20:18 +00:00
Jim Laskey 5c51c2b4ab Adding new Dwarf constants.
llvm-svn: 29798
2006-08-21 21:18:10 +00:00
Chris Lattner 451b099113 Fix PR861
llvm-svn: 29796
2006-08-21 20:24:53 +00:00
Chris Lattner e7134c5f69 Fix PR885
llvm-svn: 29794
2006-08-21 17:20:01 +00:00
Rafael Espindola 9d77f9fd24 add the and instruction
llvm-svn: 29793
2006-08-21 13:58:59 +00:00
Bill Wendling 04f2246400 Added a check so that if we have two machine instructions in this form
MOV R0, R1
    MOV R1, R0

the second machine instruction is removed. Added a regression test.

llvm-svn: 29792
2006-08-21 07:33:33 +00:00
Reid Spencer 944645af44 For PR797:
Adjust usage of the ExecuteAndWait function to use the last argument which
is the ErrMsg string. This is necessitated because this function no longer
throws exceptions on error.

llvm-svn: 29791
2006-08-21 06:04:45 +00:00
Reid Spencer 42bcf6ea76 For PR797:
Remove all exception code from Program.inc and implement its new interface
with an ErrMsg string argument.

llvm-svn: 29790
2006-08-21 06:02:44 +00:00
Reid Spencer c295914b7a For PR797:
Make sys::Program::ExecuteAndWait not throw exceptions and update any
affected code. It now return -9999 to signal that the program couldn't be
executed. Only one case (in bugpoint) actually examines the result code.

llvm-svn: 29785
2006-08-21 02:04:43 +00:00
Rafael Espindola 8a675a5d09 call computeRegisterProperties
llvm-svn: 29780
2006-08-20 01:49:49 +00:00
Chris Lattner 680aab652a regenerate
llvm-svn: 29771
2006-08-18 17:34:45 +00:00
Chris Lattner 682e17c128 trivial optimization
llvm-svn: 29770
2006-08-18 17:34:24 +00:00
Reid Spencer b50974ac75 Add a comment about the mechanisms used to rid AsmParser of exceptions.
llvm-svn: 29769
2006-08-18 17:32:55 +00:00
Reid Spencer 7c9ec5ff37 For PR797:
1. Actually turn on -fno-exceptions in libraries that do not have the
   REQUIRES_EH option in their Makefile. The following library file size
   savings were made (DEBUG):
      libLLVMDataStructure.a  525K
      libLLVMCore.a           380K
      libLLVMCodeGen.a        350K
      libLLVMTransformUtils.a 305K
      libLLVMScalarOpts.a     270K
      libLLVMAnalysis.a       247K
      libLLVMSelectionDAG.a   233K
      libLLVMipo.a            175K
      LLVMX86.o               123K
      LLVMPPC.o                81K
      libLLVMipa.a             17K
                 TOTAL      2,706K
      Note that the savings is actually a little larger than this because
      I didn't count any of the libraries that had small changes.

2. Remove REQUIRES_EH from the AsmParser library as it is now exception
   free. This resulted in a nearly 78K drop in the size of the debug
   library for AsmParser.

llvm-svn: 29767
2006-08-18 09:30:03 +00:00
Reid Spencer 5495fe8dd6 Fix a grammaro in a comment.
llvm-svn: 29765
2006-08-18 09:01:07 +00:00
Reid Spencer 713eedc1fb For PR797:
Rid the Assembly Parser of exceptions. This is a really gross hack but it
will do until the Assembly Parser is re-written as a recursive descent.
The basic premise is that wherever the old "ThrowException" function was
called (new name: GenerateError) we set a flag (TriggerError). Every
production checks that flag and calls YYERROR if it is set. Additionally,
each call to ThrowException in the grammar is replaced with GEN_ERROR
which calls GenerateError and then YYERROR immediately. This prevents
the remaining production from continuing after an error condition.

llvm-svn: 29763
2006-08-18 08:43:06 +00:00
Chris Lattner 60f1eecd3a Constify some methods. Patch provided by Anton Vayvod, thanks!
llvm-svn: 29756
2006-08-17 22:00:08 +00:00
Chris Lattner 162f2d5d4c Revert this patch, the front-end has been fixed to make it unneccesary.
llvm-svn: 29752
2006-08-17 18:43:24 +00:00
Chris Lattner dfb3f0591d 'g' is handled by the front-end.
llvm-svn: 29751
2006-08-17 18:12:28 +00:00
Andrew Lenharth 4a063c5ffb Fix handling of 'g'. Closes 883
llvm-svn: 29750
2006-08-17 17:50:12 +00:00
Rafael Espindola c3ed77e1b9 add a "load effective address"
llvm-svn: 29748
2006-08-17 17:09:40 +00:00
Andrew Lenharth 1c3210d08d Add the 'c' constraint as needed by the linux kernel
llvm-svn: 29747
2006-08-17 16:07:50 +00:00
Andrew Lenharth fc60fb974c Add support for S and D constraints, as needed to compile the linux kernel.
llvm-svn: 29746
2006-08-17 15:35:43 +00:00
Chris Lattner d86418ab20 switch the SUnit pred/succ sets from being std::sets to being smallvectors.
This reduces selectiondag time on kc++ from 5.43s to 4.98s (9%).  More
significantly, this speeds up the default ppc scheduler from ~1571ms to 1063ms,
a 33% speedup.

llvm-svn: 29743
2006-08-17 00:09:56 +00:00
Evan Cheng 29ab7c42a8 Doh. Incorrectly inverted condition. Also add a isOnlyUse check to match tablegen.
llvm-svn: 29741
2006-08-16 23:59:00 +00:00
Chris Lattner 65879caf07 minor changes.
llvm-svn: 29740
2006-08-16 22:57:46 +00:00
Chris Lattner a4f3625c23 Use the appropriate typedef
llvm-svn: 29730
2006-08-16 20:59:32 +00:00
Rafael Espindola bf8e751488 Declare the callee saved regs
Remove the hard coded store and load of the link register
Implement ARMFrameInfo

llvm-svn: 29727
2006-08-16 14:43:33 +00:00
Evan Cheng 63d178f473 SelectNodeTo() may return a SDOperand that is different from the input.
llvm-svn: 29726
2006-08-16 07:30:09 +00:00
Evan Cheng f2a7d5768a RET_FLAG has an optional input flag, but it does not produce a flag result.
llvm-svn: 29725
2006-08-16 07:28:58 +00:00
Chris Lattner 08a5f38c5c add a note
llvm-svn: 29722
2006-08-16 02:47:44 +00:00
Chris Lattner 0621caef44 initial changes to support JIT'ing from multiple module providers, implicitly
linking the program on the fly.

llvm-svn: 29721
2006-08-16 01:24:12 +00:00
Chris Lattner bc485fdc4c Fix PowerPC/2006-08-15-SelectionCrash.ll and simplify selection code.
llvm-svn: 29715
2006-08-15 23:48:22 +00:00
Chris Lattner a5a3eafbd0 Start using SDVTList more consistently
llvm-svn: 29711
2006-08-15 19:11:05 +00:00
Chris Lattner f98411a220 add a new SDVTList type and new SelectionDAG::getVTList methods to streamline
the creation of canonical VTLists.

llvm-svn: 29709
2006-08-15 17:46:01 +00:00
Chris Lattner bd8877744b eliminate use of getNode that takes vector of valuetypes.
llvm-svn: 29687
2006-08-14 23:53:35 +00:00
Chris Lattner 3bf4be453f Add a new getNode() method that takes a pointer to an already-intern'd list
of value-type nodes.  This avoids having to do mallocs for std::vectors of
valuetypes when a node returns more than one type.

llvm-svn: 29685
2006-08-14 23:31:51 +00:00
Chris Lattner e93a39f2d7 remove SelectionDAG::InsertISelMapEntry, it is dead
llvm-svn: 29677
2006-08-14 22:24:39 +00:00
Chris Lattner 63268f0672 Add code to resize the CSEMap hash table. This doesn't speedup codegen of
kimwitu, but seems like a good idea from a "avoid performance cliffs" standpoint :)

llvm-svn: 29675
2006-08-14 22:19:25 +00:00
Chris Lattner 6441cf93c9 Handle single-entry PHI nodes correctly. This fixes PR877 and
Transforms/CondProp/2006-08-14-SingleEntryPhiCrash.ll

llvm-svn: 29673
2006-08-14 21:38:05 +00:00
Chris Lattner 8e37283d8b Add the actual constant to the hash for ConstantPool nodes. Thanks to
Rafael Espindola for pointing this out.

llvm-svn: 29669
2006-08-14 20:12:44 +00:00
Rafael Espindola 157971b04a select code like
ldr rx, [ry, #offset]

llvm-svn: 29664
2006-08-14 19:01:24 +00:00
Nate Begeman 984c1a4a8f Emit .set directives for jump table entries when possible, which reduces
the number of relocations in object files, shrinkifying them.

llvm-svn: 29650
2006-08-12 21:29:52 +00:00
Chris Lattner 095e4ad2ea Fix a bug in a recent refactoring that broke a bunch of stuff.
llvm-svn: 29649
2006-08-12 07:20:05 +00:00
Chris Lattner 167ea3eb5f Fix an obvious bug, noticed by inspection. No current targets trigger this.
llvm-svn: 29648
2006-08-12 05:41:39 +00:00
Chris Lattner f18b396cc2 Don't attempt to split subloops out of a loop with a huge number of backedges.
Not only will this take huge amounts of compile time, the resultant loop nests
won't be useful for optimization.  This reduces loopsimplify time on
Transforms/LoopSimplify/2006-08-11-LoopSimplifyLongTime.ll from ~32s to ~0.4s
with a debug build of llvm on a 2.7Ghz G5.

llvm-svn: 29647
2006-08-12 05:25:00 +00:00
Chris Lattner 859a138dc4 Make Loop::getExitBlocks significantly faster for large loops. Instead of
pounding on Loop::contains (which is O(n) in the size of the loop), use a
sorted vector, which is O(log(N)) for each query.  This speeds up Duraid's
horrible testcase from ~72s to ~31s in a debug build.

llvm-svn: 29645
2006-08-12 05:02:03 +00:00
Chris Lattner 85d9944f9a Reimplement the loopsimplify code which deletes edges from unreachable
blocks that target loop blocks.

Before, the code was run once per loop, and depended on the number of
predecessors each block in the loop had.  Unfortunately, scanning preds can
be really slow when huge numbers of phis exist or when phis with huge numbers
of inputs exist.

Now, the code is run once per function and scans successors instead of preds,
which is far faster.  In addition, the new code is simpler and is goto free,
woo.

This change speeds up a nasty testcase Duraid provided me from taking hours to
taking ~72s with a debug build.  The functionality this implements is already
tested in the testsuite as Transforms/CodeExtractor/2004-03-13-LoopExtractorCrash.ll.

llvm-svn: 29644
2006-08-12 04:51:20 +00:00
Chris Lattner 0a60294fa0 Switch to using SuperFastHash instead of adding all elements together. This
doesn't significantly improve performance but it helps a small amount.

llvm-svn: 29642
2006-08-12 01:07:10 +00:00
Chris Lattner 04aa034f38 Switch NodeID to track 32-bit chunks instead of 8-bit chunks, for a 2.5%
speedup in isel time.

llvm-svn: 29640
2006-08-11 23:55:53 +00:00
Chris Lattner 5425637481 remove IncludeFile turds in MathExtras.h, which bloats every .o file that
#includes it.

llvm-svn: 29639
2006-08-11 23:52:54 +00:00
Chris Lattner 0c2e5412bb Remove 8 more std::map's.
llvm-svn: 29631
2006-08-11 21:55:30 +00:00
Chris Lattner 20b461a97f eliminate extraneous blank line
llvm-svn: 29627
2006-08-11 21:08:16 +00:00
Chris Lattner 3f16b201e2 Move the BBNodes, GlobalValues, TargetGlobalValues, Constants, TargetConstants,
RegNodes, and ValueNodes maps into the CSEMap.

llvm-svn: 29626
2006-08-11 21:01:22 +00:00
Chris Lattner fcb16470ec eliminate the NullaryOps map, use CSEMap instead.
llvm-svn: 29621
2006-08-11 18:38:11 +00:00
Chris Lattner 6f22ebd8be change internal impl of dag combiner so that calls to CombineTo never have to
make a temporary vector.

llvm-svn: 29618
2006-08-11 17:56:38 +00:00
Chris Lattner a2f4086828 Change one ReplaceAllUsesWith method to take an array of operands to replace
instead of a vector of operands.

llvm-svn: 29616
2006-08-11 17:46:28 +00:00
Chris Lattner ed728e8dc9 Eliminate use of getNode that takes a vector.
llvm-svn: 29614
2006-08-11 17:38:39 +00:00
Chris Lattner c62914880f elimiante use of getNode that takes vector of operands.
llvm-svn: 29612
2006-08-11 17:22:35 +00:00
Chris Lattner 56565b5cb9 eliminate use of getNode that takes vector of operands.
llvm-svn: 29611
2006-08-11 17:21:12 +00:00
Chris Lattner 2aa76cf371 eliminate use of getNode that takes vector<SDOperand>. Wrap a really long line.
llvm-svn: 29610
2006-08-11 17:19:54 +00:00
Chris Lattner d66f14e846 Convert vectors to fixed sized arrays and smallvectors. Eliminate use of getNode that takes a vector.
llvm-svn: 29609
2006-08-11 17:18:05 +00:00
Chris Lattner 66f1fbaaad Fix miscompilation of float vector returns. Compile code to this:
_func:
        vsldoi v2, v3, v2, 12
        vsldoi v2, v2, v2, 4
        blr

instead of:

_func:
        vsldoi v2, v3, v2, 12
        vsldoi v2, v2, v2, 4
***     vor f1, v2, v2
        blr

llvm-svn: 29607
2006-08-11 16:47:32 +00:00