Evan Cheng
14a6db8bd9
Initial support for register pressure aware scheduling. The register reduction
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scheduler can go into a "vertical mode" (i.e. traversing up the two-address
chain, etc.) when the register pressure is low.
This does seem to reduce the number of spills in the cases I've looked at. But
with x86, it's no guarantee the performance of the code improves.
It can be turned on with -sched-vertically option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28108 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 19:16:39 +00:00
Chris Lattner
943b5e117f
Remove redundancy and a level of indirection when creating machine operands
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28107 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 19:14:44 +00:00
Chris Lattner
8b915b4ed2
Remove and simplify some more machineinstr/machineoperand stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28105 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 18:16:01 +00:00
Chris Lattner
2d90ac7ca6
Rename MO_VirtualRegister -> MO_Register. Clean up immediate handling.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28104 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 18:05:43 +00:00
Chris Lattner
e53f4a055f
Move some methods out of MachineInstr into MachineOperand
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28102 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 17:52:23 +00:00
Chris Lattner
e3158308e0
Fix Transforms/InstCombine/2006-05-04-DemandedBitCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28101 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 17:33:35 +00:00
Chris Lattner
63b3d7113d
There shalt be only one "immediate" operand type!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28099 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 17:21:20 +00:00
Chris Lattner
ceb408f6a2
Change "value" in MachineOperand to be a GlobalValue, as that is the only
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thing that can be in it. Remove a dead method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28098 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 17:02:51 +00:00
Chris Lattner
e45aa737ba
Revert Nate's CR patch from last night, which caused many regressions (e.g. fhourstones).
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Loading and storing off R0 isn't what we wanted. Also, taking some CR's out of
CRRC seems to cause failures as well. Further investigation is required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28097 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 16:56:45 +00:00
Jeff Cohen
10efcfabf1
Make external globals public; other minor cleanup.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28096 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 16:20:22 +00:00
Jeff Cohen
a6e24d8caf
Make Intel syntax the default when LLVM is built with VC++.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28095 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 16:19:27 +00:00
Chris Lattner
4efeab208c
Remove a bunch more dead V9 specific stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28094 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 01:26:39 +00:00
Chris Lattner
ea50fabfd4
Remove a bunch more SparcV9 specific stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28093 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 01:15:02 +00:00
Chris Lattner
34fb2cad46
Remove some more V9-specific stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28092 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 00:49:59 +00:00
Chris Lattner
10f3597c4e
Remove some more unused stuff from MachineInstr that was leftover from V9.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28091 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 00:44:25 +00:00
Chris Lattner
0e57629a93
Simplify handling of relocations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28090 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-04 00:42:08 +00:00
Evan Cheng
9e062ed516
Use movsd to shuffle in the lowest two elements of a v4f32 / v4i32 vector when
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movlps cannot be used (e.g. when load from m64 has multiple uses).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28089 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 20:32:03 +00:00
Chris Lattner
5a032de387
Change from using MachineRelocation ctors to using static methods
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in MachineRelocation to create Relocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28088 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 20:30:20 +00:00
Chris Lattner
d2d5c76753
minor cleanups, no functionality change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28087 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 18:55:56 +00:00
Chris Lattner
93e5c284d7
inline a simple method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28083 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 17:21:32 +00:00
Chris Lattner
b4432f3d47
Suck block address tracking out of targets into the JIT Emitter. This
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simplifies the MachineCodeEmitter interface just a little bit and makes
BasicBlocks work like constant pools and jump tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28082 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 17:10:41 +00:00
Chris Lattner
5c488182da
Fix a bug in Owen's checkin that broke the CBE on all non sparc v9 platforms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28081 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 05:48:41 +00:00
Nate Begeman
67977ad19c
Teach the x86 jit how to handle jump tables not directly used by a jump
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instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28080 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 04:52:47 +00:00
Nate Begeman
f4360a4789
Finish up the initial jump table implementation by allowing jump tables to
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not be 100% dense. Increase the minimum threshold for the number of cases
in a switch statement from 4 to 6 in order to create a jump table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28079 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 03:48:02 +00:00
Evan Cheng
c9a83a45ba
Bottom up register pressure reduction work: clean up some hacks and enhanced
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the heuristic to further reduce spills for several test cases. (Note, it may
not necessarily translate to runtime win!)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28076 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 02:10:45 +00:00
Owen Anderson
a69571c799
Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.
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This fixes PR 759.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 01:29:57 +00:00
Chris Lattner
0eb4d6b52e
Align function bodies correctly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28073 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 01:03:20 +00:00
Chris Lattner
e6fdcbfc47
Simplify some code. Don't add memory blocks to the Blocks list twice.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28071 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 00:54:49 +00:00
Chris Lattner
9b4c96d45d
Add assertions that verify that the actual arguments to a call or invoke match
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the prototype of the called function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28070 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 00:48:22 +00:00
Chris Lattner
af1563fb62
Change the BasicBlockAddrs map to be a vector, indexed by MBB number.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28069 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 00:32:55 +00:00
Chris Lattner
23118b649e
Keep the alpha JIT similar to the PPC/X86 jits
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28068 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 00:31:21 +00:00
Chris Lattner
32ca55f3bc
Simplify some code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28066 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-03 00:13:06 +00:00
Chris Lattner
f75f9be3fb
Several related changes:
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1. Change several methods in the MachineCodeEmitter class to be pure virtual.
2. Suck emitConstantPool/initJumpTableInfo into startFunction, removing them
from the MachineCodeEmitter interface, and reducing the amount of target-
specific code.
3. Change the JITEmitter so that it allocates constantpools and jump tables
*right* next to the functions that they belong to, instead of in a separate
pool of memory. This makes all memory for a function be contiguous, and
means the JITEmitter only tracks one block of memory now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28065 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 23:22:24 +00:00
Nate Begeman
a11a92976a
Remove some stuff from the README
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28063 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 22:43:31 +00:00
Chris Lattner
f5d438c1f0
Do not make the JIT memory manager manage the memory for globals. Instead
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just have the JIT malloc them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28062 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 21:57:51 +00:00
Chris Lattner
a726c7f1fd
Minor cleanups, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28061 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 21:44:14 +00:00
Chris Lattner
d3f0aefc33
Fix a purely hypothetical problem (for now): emitWord emits in the host
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byte format. This doesn't work when using the code emitter in a cross target
environment. Since the code emitter is only really used by the JIT, this
isn't a current problem, but if we ever start emitting .o files, it would be.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28060 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 19:14:47 +00:00
Chris Lattner
43b429b059
Refactor the machine code emitter interface to pull the pointers for the current
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code emission location into the base class, instead of being in the derived classes.
This change means that low-level methods like emitByte/emitWord now are no longer
virtual (yaay for speed), and we now have a framework to support growable code
segments. This implements feature request #1 of PR469.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28059 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 18:27:26 +00:00
Nate Begeman
426cd7c25f
Since we don't handle callee-save CRs right yet, don't allocate them. Also
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don't step on R11 in the middle of a function when saving and restoring CRs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28058 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 17:37:31 +00:00
Nate Begeman
9d51eeb8bc
Print function number instead of name
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28057 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 17:36:46 +00:00
Nate Begeman
6e0f386896
Hooray, everyone now uses the same printBasicBlockLabel implementation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28056 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 17:34:51 +00:00
Chris Lattner
b0cc79d45b
Remove dead method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28055 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 17:20:28 +00:00
Chris Lattner
608c189534
There is no reason to use a virtual method to store this word.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28053 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 17:16:20 +00:00
Chris Lattner
3a9cfbaf86
Remove the debug machine code emitter. The "FilePrinterEmitter" is more
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useful for debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28051 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 16:59:24 +00:00
Nate Begeman
cdf38c4edb
Extend printBasicBlockLabel a bit so that it can be used to print all
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basic block labels, consolidating the code to do so in one place for each
target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28050 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 05:37:32 +00:00
Nate Begeman
5425267e84
Update the PPC compilation callback code to not need weird abi-violating
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prologs and epilogs, keep all the asm in one place, and remove use of
compiler builtin functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28049 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 04:50:05 +00:00
Chris Lattner
b3674e4753
Add pass ID's for various passes, so they can be AddRequiredID. Patch by
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Domagoj Babic!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28048 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 04:24:36 +00:00
Jeff Cohen
51b776d259
De-virtualize SwitchSection.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28047 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 03:58:45 +00:00
Jeff Cohen
c6a057b04d
De-virtualize EmitZeroes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28046 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 03:46:13 +00:00
Jeff Cohen
4f1ea1e9d9
Finish support for Microsoft ML/MASM. May still be a few rough edges.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28045 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-02 03:11:50 +00:00