Andrew Lenharth
cad1d52b64
Added documented rsprofiler interface. Also remove new profiler passes, the
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old ones have been updated to implement the interface.
llvm-svn: 24499
2005-11-28 18:00:38 +00:00
Jeff Cohen
b171dee053
Fix VC++ warning.
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llvm-svn: 24496
2005-11-28 06:45:57 +00:00
Chris Lattner
0edc0fd222
Add a missed optimization
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llvm-svn: 24495
2005-11-28 04:52:39 +00:00
Andrew Lenharth
311ec68cf4
Random sampling (aka Arnold and Ryder) profiling. This is still preliminary, but it works on spec on x86 and alpha. The idea is to allow profiling passes to remember what profiling they inserted, then a random sampling framework is inserted which consists of duplicated basic blocks (without profiling), such that at each backedge in the program and entry into every function, the framework chooses whether to use the instrumented code or the instrumentation free code. The goal of such a framework is to make it reasonably cheap to do random sampling of very expensive profiling products (such as load-value profiling).
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The code is organized into 3 parts (2 passes)
1) a linked set of profiling passes, which implement an analysis group (linked, like alias analysis are). These insert profiling into the program, and remember what they inserted, so that at a later time they can be queried about any instruction.
2) a pass that handles inserting the random sampling framework. This also has options to control how random samples are choosen. Currently implemented are Global counters, register allocated global counters, and read cycle counter (see? there was a reason for it).
The profiling passes are almost identical to the existing ones (block, function, and null profiling is supported right now), and they are valid passes without the sampling framework (hence the existing passes can be unified with the new ones, not done yet).
Some things are a bit ugly still, but that should be fixed up soon enough.
Other todo? making the counter values not "magic 2^16 -1" values, but dynamically choosable.
llvm-svn: 24493
2005-11-28 00:58:09 +00:00
Nate Begeman
84cac055ad
Small tweaks noticed while on the plane.
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llvm-svn: 24492
2005-11-26 22:39:34 +00:00
Andrew Lenharth
2700c92469
since reg2mem requires it, might as well mention that it preserves it
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llvm-svn: 24491
2005-11-25 16:04:54 +00:00
Duraid Madina
9c2283e7c7
add support for dynamic_stackalloc to the dag isel (thanks andrew ;)
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next up: support argument passing in memory, not just registers
llvm-svn: 24490
2005-11-25 07:49:25 +00:00
Nate Begeman
687456dd7a
Some first bits of AltiVec stuff: Instruction Formats, Encodings, and
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Registers. Apologies to Jim if the scheduling info so far isn't accurate.
There's a few more things like VRsave support that need to be finished up
in my local tree before I can commit code that Does The Right Thing for
turning 4 x float into the various altivec packed float instructions.
llvm-svn: 24489
2005-11-23 05:29:52 +00:00
Andrew Lenharth
79ee761b69
Reg2Mem is something a pass may depend on, so allow that
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llvm-svn: 24488
2005-11-22 22:14:23 +00:00
Andrew Lenharth
939cd99914
turns out, demotion and invokes and critical edges don't mix
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llvm-svn: 24487
2005-11-22 21:45:19 +00:00
Andrew Lenharth
8b7596a557
Fix warning, the better way. Really, this is what this instruction is for, so use it
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llvm-svn: 24486
2005-11-22 20:59:00 +00:00
Andrew Lenharth
5de23ee89a
Fix warning
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llvm-svn: 24485
2005-11-22 20:56:05 +00:00
Nate Begeman
a90bb6d9b1
Check in code to scalarize arbitrarily wide packed types for some simple
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vector operations (load, add, sub, mul).
This allows us to codegen:
void %foo(<4 x float> * %a) {
entry:
%tmp1 = load <4 x float> * %a;
%tmp2 = add <4 x float> %tmp1, %tmp1
store <4 x float> %tmp2, <4 x float> *%a
ret void
}
on ppc as:
_foo:
lfs f0, 12(r3)
lfs f1, 8(r3)
lfs f2, 4(r3)
lfs f3, 0(r3)
fadds f0, f0, f0
fadds f1, f1, f1
fadds f2, f2, f2
fadds f3, f3, f3
stfs f0, 12(r3)
stfs f1, 8(r3)
stfs f2, 4(r3)
stfs f3, 0(r3)
blr
llvm-svn: 24484
2005-11-22 18:16:00 +00:00
Andrew Lenharth
33e8022557
massive DAGISel patch. lots and lots more stuff compiles now
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llvm-svn: 24483
2005-11-22 04:20:06 +00:00
Nate Begeman
d2f6fcf327
Rather than attempting to legalize 1 x float, make sure the SD ISel never
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generates it. Make MVT::Vector expand-only, and remove the code in
Legalize that attempts to legalize it.
The plan for supporting N x Type is to continually epxand it in ExpandOp
until it gets down to 2 x Type, where it will be scalarized into a pair of
scalars.
llvm-svn: 24482
2005-11-22 01:29:36 +00:00
Chris Lattner
3efe6171f1
Use HasDotTypeDotSizeDirective instead of forELF
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llvm-svn: 24481
2005-11-21 23:06:54 +00:00
Chris Lattner
fb4a026c32
Remove a level of indentation by using a continue.
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llvm-svn: 24479
2005-11-21 22:48:18 +00:00
Chris Lattner
d17b6f1f1f
Simplify the subtarget info, allow the asmwriter to do some target sensing
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based on TargetType.
llvm-svn: 24478
2005-11-21 22:43:58 +00:00
Chris Lattner
77bd127e14
Use subtarget information computed by X86Subtarget instead of rolling our own.
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llvm-svn: 24477
2005-11-21 22:39:40 +00:00
Chris Lattner
4e1e8b180b
Make the X86 subtarget compute the basic target type: ELF, Cygwin, Darwin,
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or native Win32
llvm-svn: 24476
2005-11-21 22:31:58 +00:00
Chris Lattner
0a2fc68b8a
Add a forELF flag, allowing the removal of forCygwin and simplification of
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conditionals.
llvm-svn: 24475
2005-11-21 22:19:48 +00:00
Chris Lattner
fe8b9b90d4
simplify and genericize this code
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llvm-svn: 24473
2005-11-21 19:50:31 +00:00
Duraid Madina
5fe9d39b8d
add support for div/rem to the dag->dag isel. yay.
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llvm-svn: 24472
2005-11-21 14:14:54 +00:00
Duraid Madina
04be8e167c
I think I know what you meant here, but just to be safe I'll let you
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do it. :)
<_sabre_> excuses excuses
llvm-svn: 24471
2005-11-21 14:09:40 +00:00
Chris Lattner
f4b9a79b79
Eliminate unneeded intermediate class. Move doFinalizeMethod to bottom of
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file.
llvm-svn: 24470
2005-11-21 08:40:17 +00:00
Chris Lattner
b24983c574
Start using shared asmprinter Constant Pool emitter, use shorter cpi names.
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llvm-svn: 24469
2005-11-21 08:38:26 +00:00
Chris Lattner
9a74c980e8
prune #include
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llvm-svn: 24468
2005-11-21 08:33:17 +00:00
Chris Lattner
03d9332c4f
Switch to using the shared constant pool printer, along with using shorter
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CPI ids
llvm-svn: 24467
2005-11-21 08:32:23 +00:00
Chris Lattner
0392a281e0
Switch to using the generic constant pool emitter impl, use shorter
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CPI names
llvm-svn: 24466
2005-11-21 08:29:17 +00:00
Chris Lattner
a5ec3d8e81
Use generic constant pool emission code in the AsmPrinter class.
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llvm-svn: 24465
2005-11-21 08:26:15 +00:00
Chris Lattner
3820bdc84c
Allow target to customize directive used to switch to arbitrary section in SwitchSection,
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add generic constant pool emitter
llvm-svn: 24464
2005-11-21 08:25:09 +00:00
Chris Lattner
31197fa019
Use the FunctionNumber provided by the AsmPrinter class
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llvm-svn: 24462
2005-11-21 08:14:07 +00:00
Chris Lattner
3ad9bee9a4
increment the function number in SetupMachineFunction
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llvm-svn: 24461
2005-11-21 08:13:27 +00:00
Chris Lattner
d7ae8bcf66
Use CommentString where possible, fix a bug where aix mode wouldn't assemble
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due to basic blocks being misnamed.
llvm-svn: 24459
2005-11-21 08:02:41 +00:00
Chris Lattner
f3af64b478
unify the darwin and aix constant pool printers
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llvm-svn: 24458
2005-11-21 07:57:37 +00:00
Chris Lattner
4c1efb2a29
Adjust to capitalized asmprinter method names
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llvm-svn: 24457
2005-11-21 07:51:36 +00:00
Chris Lattner
3e2c6c1d15
Adjust to capitalized AsmPrinter method names
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llvm-svn: 24456
2005-11-21 07:51:23 +00:00
Chris Lattner
0716cec311
Use PrivateGlobalPrefix for basic block labels. This allows the x86 darwin
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port to properly use L for the bb prefix instead of .
llvm-svn: 24454
2005-11-21 07:43:59 +00:00
Chris Lattner
b4955ba62b
use PrivateGlobalPrefix for basic blocks
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llvm-svn: 24453
2005-11-21 07:41:05 +00:00
Chris Lattner
a0905b348a
Use PrivateGlobalPrefix for basic block labels
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llvm-svn: 24452
2005-11-21 07:39:22 +00:00
Chris Lattner
28504fdac0
Use PrivateGlobalPrefix for basic blocks
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llvm-svn: 24451
2005-11-21 07:38:08 +00:00
Chris Lattner
13902c24bd
Switch to the new shared SwitchSection
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llvm-svn: 24450
2005-11-21 07:30:28 +00:00
Chris Lattner
b273e59ae8
Start using SwitchSection, allowing globals and functions to be emitted
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to specific sections. Delete some dead functions copied from the X86 backend.
llvm-svn: 24449
2005-11-21 07:26:04 +00:00
Chris Lattner
83215f8935
convert the rest of this over to use SwitchSection
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llvm-svn: 24448
2005-11-21 07:16:34 +00:00
Chris Lattner
a19d2349b1
Start using the AsmPrinter shared SwitchSection code. This allows the X86
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backend to implement global variables in sections.
llvm-svn: 24447
2005-11-21 07:11:11 +00:00
Chris Lattner
bc917fe899
This is now implemented in common codegen code
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llvm-svn: 24446
2005-11-21 07:06:58 +00:00
Chris Lattner
f78eca1416
Add section switching to common code generator code. Add a couple of
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asserts.
llvm-svn: 24445
2005-11-21 07:06:27 +00:00
Chris Lattner
e5d0064a9d
Rename SwitchSection -> switchSection to avoid conflicting with a future
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change.
llvm-svn: 24443
2005-11-21 06:55:27 +00:00
Chris Lattner
07ea769304
Start using PrivateGlobalPrefix correctly
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llvm-svn: 24442
2005-11-21 06:51:52 +00:00
Chris Lattner
78bb97af59
set PrivateGlobalPrefix on darwin, use it when printing out CP references
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llvm-svn: 24441
2005-11-21 06:47:58 +00:00