Dan Gohman
36b5c1338a
Rename MemOperand to MachineMemOperand. This was suggested by
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review feedback from Chris quite a while ago. No functionality
change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 19:35:22 +00:00
Roman Levenstein
dc1adac582
Re-commit of the r48822, where the infinite looping problem discovered
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by Dan Gohman is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 10:06:32 +00:00
Gabor Greif
051a950000
API changes for class Use size reduction, wave 1.
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Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06 20:25:17 +00:00
Evan Cheng
0c0f83ff5d
Favors pshufd over shufps when shuffling elements from one vector. pshufd is faster than shufps.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49244 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-05 00:30:36 +00:00
Evan Cheng
43b7ca15a3
Re-enable SSE4.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 08:53:29 +00:00
Evan Cheng
ab394bdcc0
Fix x86-64 encoding bug. REX prefix must always follow 0x0F prefix. For example, extractps in 64bit mode: 66 REX 0F 3A 17, not 66 0F 3A REX 17.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49157 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 08:53:17 +00:00
Evan Cheng
90ce87b5bd
Cosmetic
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 07:45:18 +00:00
Evan Cheng
b4e56d4a2b
Temporarily disabling SSE4 until we fix the encoding issues.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 04:49:54 +00:00
Evan Cheng
6397c64441
Backing out 48222 temporarily.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 03:13:16 +00:00
Dale Johannesen
e00406281d
Cosmetic changes per EH patch review feedback.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 17:04:45 +00:00
Anton Korobeynikov
67073f1cbd
Add new CC lowering rule: provide a list of registers, which can be 'shadowed',
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when some another register is used for argument passing.
Currently is used on Win64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 05:23:57 +00:00
Dale Johannesen
1532f3ddd7
Recommitting EH patch; this should answer most of the
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review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 00:25:04 +00:00
Evan Cheng
ffe2eb0120
ReMat of load from stub in pic mode extends the life of pic base. Currently spiller doesn't do a good job of estimating the impact. Disable for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49059 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 23:26:12 +00:00
Evan Cheng
247faffb32
Remove unnecessary and non-deterministic checking code. Re-enable remat of load from gv stub.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 21:38:20 +00:00
Dan Gohman
38c92263eb
Don't use __bzero for memset if the second argument isn't zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49050 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:56:18 +00:00
Dan Gohman
68d599df37
Speculatively micro-optimize memory-zeroing calls on Darwin 10.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49048 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:38:36 +00:00
Dale Johannesen
b6d5b14390
Revert 49006 for the moment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:00:57 +00:00
Evan Cheng
78b6ce3981
Disabling remat of load from gv stub (temporarily) again to fix llvmgcc bootstrap miscompare.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 07:33:13 +00:00
Dale Johannesen
2ffbcaccd1
Accept 'y' constraint (MMX) in inline asm.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49011 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 00:57:48 +00:00
Dale Johannesen
1544e4713b
Emit exception handling info for functions which are
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not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.
llvm-gcc generates nounwind in the right places; other FEs
will need to do so also. Given such a FE, -enable-eh should
no longer be needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 23:40:23 +00:00
Evan Cheng
427f4c106a
It's not safe to fold a load from GV stub or constantpool into a two-address use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49002 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 23:19:51 +00:00
Evan Cheng
ca1267c02b
Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 20:40:39 +00:00
Evan Cheng
9d15abe838
Re-apply 48911.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48977 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 07:54:19 +00:00
Dan Gohman
d4a2ad35e3
Fix a tokenfactor node to use the load chain rather than the
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load value. This fixes PR2177.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48932 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-28 23:45:16 +00:00
Evan Cheng
4db4f1ce7e
Backing out 48911 for now. It's breaking stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-28 17:49:06 +00:00
Evan Cheng
ddf0a06580
New entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48912 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-28 07:07:06 +00:00
Evan Cheng
86f57b0983
Load from stub is already re-materializable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-28 06:49:25 +00:00
Evan Cheng
e3d8dbf479
Code clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48856 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 01:45:11 +00:00
Evan Cheng
e771ebd7a3
Allow certain lea instructions to be rematerialized.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48855 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 01:41:09 +00:00
Evan Cheng
d1e4b3515c
Remove an unused command line option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48854 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 01:30:24 +00:00
Roman Levenstein
e326332acd
Use a linked data structure for the uses lists of an SDNode, just like
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LLVM Value/Use does and MachineRegisterInfo/MachineOperand does.
This allows constant time for all uses list maintenance operations.
The idea was suggested by Chris. Reviewed by Evan and Dan.
Patch is tested and approved by Dan.
On normal use-cases compilation speed is not affected. On very big basic
blocks there are compilation speedups in the range of 15-20% or even better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-26 12:39:26 +00:00
Evan Cheng
7aae876db1
Fix some SSE4.1 instruction encoding bugs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48815 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-26 08:11:49 +00:00
Dale Johannesen
27c31054ec
Use ## for comment delimiter on darwin x86-32, so
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llvm's output .s files will go through gcc -std=c99
without triggering preprocesser errors. Approach
suggested by Daveed Vandevoorde.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 23:29:30 +00:00
Evan Cheng
e22e62b5c0
Smaller function alignment when optimizing for size.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48805 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 22:29:46 +00:00
Dan Gohman
950a4c40b8
Add explicit keywords.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48801 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 22:06:05 +00:00
Dan Gohman
cfbb2f074d
A quick nm audit turned up several fixed tables and objects that were
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marked read-write. Use const so that they can be allocated in a
read-only segment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48800 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 21:45:14 +00:00
Dan Gohman
27845362d9
Add CMP32mr and friends to the load-unfolding table. Among
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other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 16:53:19 +00:00
Evan Cheng
62a3f1538c
- SSE4.1 extractfps extracts a f32 into a gr32 register. Very useful! Not. Fix the instruction specification and teaches lowering code to use it only when the only use is a store instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 21:52:23 +00:00
Evan Cheng
3d5cd6118d
Remove duplicated entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48714 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 22:56:07 +00:00
Anton Korobeynikov
82818eb223
Minor typo fixes. Also add another FIXME.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48710 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 20:32:06 +00:00
Anton Korobeynikov
f8e7416632
Add license header
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48707 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 14:53:18 +00:00
Anton Korobeynikov
231e964ad2
Add Win64 compilation callback. This allows easy examples to be JITed on Win64!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 14:44:32 +00:00
Anton Korobeynikov
8c27829514
Provide a JIT selector on win64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48704 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 13:43:47 +00:00
Anton Korobeynikov
c15b81ba17
Hack out the PIC mode on Win64 targets. This needs to be investigated later.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48703 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 13:41:18 +00:00
Anton Korobeynikov
fd9d976d74
Code cleanup. Provide generic way of selecting JIT pointer bitwidth regardless
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of compiler used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48702 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 13:40:45 +00:00
Anton Korobeynikov
6aeedfd0f5
Remove old-standing obsolete code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48701 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-23 12:32:54 +00:00
Anton Korobeynikov
2b4f780585
Honour built-in defines on win64 targets for automatically subtarget recognize.
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Force stack alignment to 16 bytes on win targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48695 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22 21:18:22 +00:00
Anton Korobeynikov
508f0fdb53
Recognize "windows" in target triple, not only "win32"
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48694 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22 21:12:53 +00:00
Anton Korobeynikov
1dcce2148d
Add information about callee-saved registers on Win64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22 21:04:01 +00:00
Anton Korobeynikov
1a979d9eab
Add convenient helper for win64 check. Simplify things slightly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48691 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22 20:57:27 +00:00
Anton Korobeynikov
8f88cb0899
Initial support for Win64 calling conventions. Still in early state.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48690 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22 20:37:30 +00:00
Anton Korobeynikov
c73ede0a9b
Another comments fixing
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48683 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-22 07:53:40 +00:00
Chris Lattner
35831d06fd
Restore this assert now that the livevar bug is fixed.
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This verifies kill info for "ret" fp operands is right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48656 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 20:41:27 +00:00
Duncan Sands
276dcbdc8d
Introduce a new node for holding call argument
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flags. This is needed by the new legalize types
infrastructure which wants to expand the 64 bit
constants previously used to hold the flags on
32 bit machines. There are two functional changes:
(1) in LowerArguments, if a parameter has the zext
attribute set then that is marked in the flags;
before it was being ignored; (2) PPC had some bogus
code for handling two word arguments when using the
ELF 32 ABI, which was hard to convert because of
the bogusness. As suggested by the original author
(Nicolas Geoffray), I've disabled it for the moment.
Tested with "make check" and the Ada ACATS testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48640 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 09:14:45 +00:00
Chris Lattner
920c37afc5
remove Evan's "ugly hack" that sorta attempted to get
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x86-64 return conventions correct, but was never enabled.
We can now do the "right thing" with multiple return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 06:50:21 +00:00
Chris Lattner
24e0a546b4
Add support for calls that return two FP values in
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ST(0)/ST(1).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 06:38:26 +00:00
Chris Lattner
ae60ddc22a
disable a bogus assertion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48633 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 06:01:05 +00:00
Chris Lattner
0353526ed1
Enable support for returning two long-double values in ST(0)/ST(1).
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This allows us to compile fp-stack-2results.ll into:
_test:
fldz
fld1
ret
which returns 1 in ST(0) and 0 in ST(1). This is needed for x86-64
_Complex long double.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48632 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 05:57:20 +00:00
Evan Cheng
fa5a91a71e
Undo 48570. Correctly match mmx shift instructions with an immediate operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48627 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 00:40:09 +00:00
Evan Cheng
260e07ec8c
Fix this xform: (sra (shl X, m), result_size) -> (sign_extend (trunc (shl X, result_size - n - m)))
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48578 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-20 02:18:41 +00:00
Evan Cheng
dff1dcac6c
Add intrinsics to match mmx shift builtin's with immediate operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48569 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 23:38:52 +00:00
Arnold Schwaighofer
4fe3073cfb
Don't loose incoming argument registers. Fix documentation style.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 16:39:45 +00:00
Christopher Lamb
15cbde3cf6
Fix X86's isTruncateFree to not claim that truncate to i1 is free. This fixes Bill's testcase that failed for r48491.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 08:30:06 +00:00
Bill Wendling
bebc3642d3
On Darwin, GCC issues a ".globl" for something that has a "visibility protected"
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attribute instead of ".protected".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 23:38:12 +00:00
Evan Cheng
586ccac4ec
Fix a x86-64 isel lowering bug that's been around forever. A x86-64 varargs function implicitly reads X86::AL, don't clobber it!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48515 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 23:36:35 +00:00
Evan Cheng
d183307639
Unbreak JIT. Ignore TargetInstrInfo::IMPLICIT_DEF.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48447 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 06:56:52 +00:00
Nate Begeman
bc4efb8ac7
Add a couple missing SSE4 instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 21:14:46 +00:00
Christopher Lamb
c929823525
Make insert_subreg a two-address instruction, vastly simplifying LowerSubregs pass. Add a new TII, subreg_to_reg, which is like insert_subreg except that it takes an immediate implicit value to insert into rather than a register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48412 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-16 03:12:01 +00:00
Evan Cheng
da47e6e0d0
Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-15 00:03:38 +00:00
Evan Cheng
029d9dafa0
Fix some 80 col violations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 07:46:48 +00:00
Evan Cheng
172b794cd5
Fix a number of encoding bugs. SSE 4.1 instructions MPSADBWrri, PINSRDrr, etc. have 8-bits immediate field (ImmT == Imm8).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48360 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 07:39:27 +00:00
Evan Cheng
17ed8fa63d
Add debugging stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 07:13:42 +00:00
Chris Lattner
69a74ab421
Add an issue that is preventing instcombine from doing a simplification.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48356 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 06:00:19 +00:00
Christopher Lamb
6634e26aa1
Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects.
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Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13 05:47:01 +00:00
Chris Lattner
58d74910c6
Reimplement the parameter attributes support, phase #1 . hilights:
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1. There is now a "PAListPtr" class, which is a smart pointer around
the underlying uniqued parameter attribute list object, and manages
its refcount. It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
ParamAttrsWithIndex's, no need to make a SmallVector of a specific
size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
dereferencing the pointer is simplified to just access the
PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
bit simpler.
Phase #2 will rename some stuff (e.g. PAListPtr) and do other less
invasive changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 17:45:29 +00:00
Evan Cheng
c8e3b147ee
Clean up my own mess.
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X86 lowering normalize vector 0 to v4i32. However DAGCombine can fold (sub x, x) -> 0 after legalization. It can create a zero vector of a type that's not expected (e.g. v8i16). We don't want to disable the optimization since leaving a (sub x, x) is really bad. Add isel patterns for other types of vector 0 to ensure correctness. It's highly unlikely to happen other than in bugpoint reduced test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 07:02:50 +00:00
Anton Korobeynikov
4d86e2a6b8
Correctly propagate thread-local flag from aliasee to alias. This fixes PR2137
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:38:53 +00:00
Dan Gohman
bfae83139d
Use PassManagerBase instead of FunctionPassManager for functions
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that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 22:29:46 +00:00
Chris Lattner
e12ecf272d
Implement basic support for the 'f' register class constraint. This basically
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works, but probably won't if you mix it with 't' or 'u' yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48243 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 19:50:13 +00:00
Chris Lattner
1d38677e34
coalesce away 80-bit floating point copies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48241 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 19:30:09 +00:00
Chris Lattner
07f7cc3ddb
convert a massive if statement to a switch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48240 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 19:28:17 +00:00
Chris Lattner
fce84acbbc
start handling the 'f' x87 constraint.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 19:06:29 +00:00
Christopher Lamb
1bc1008b38
Missed part of recommit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48224 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 10:27:36 +00:00
Christopher Lamb
1fab4a6bbb
Recommitting parts of r48130. These do not appear to cause the observed failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48223 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 10:09:17 +00:00
Evan Cheng
204496d58e
In 32-bit mode, mark 64-bit GPR's as unallocatable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48217 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 07:16:00 +00:00
Nick Lewycky
3c78697a3c
Fix the build on gcc 4.2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48212 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 05:56:09 +00:00
Chris Lattner
447ff68c08
Change the model for FP Stack return to use fp operands on the
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RET instruction instead of using FpSET_ST0_32. This also generalizes
the code to handling returning of multiple FP results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48209 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 03:23:40 +00:00
Chris Lattner
183275a627
abort with an assert instead of a cerr to get line#
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 23:56:08 +00:00
Chris Lattner
03fdec04d1
Don't emit FP_REG_KILL into a block that just returns. Nothing
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can be live out of the block anyway, so it isn't needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 23:34:12 +00:00
Chris Lattner
8e6da15e54
Eliminate the FP_GET_ST0/FP_SET_ST0 target-specific dag nodes, just lower to
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copyfromreg/copytoreg instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48174 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 21:08:41 +00:00
Evan Cheng
d2cde68855
Default ISD::PREFETCH to expand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 19:38:10 +00:00
Evan Cheng
4499e495ea
Revert 48125, 48126, and 48130 for now to unbreak some x86-64 tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 19:31:26 +00:00
Scott Michel
5b8f82e35b
Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC's
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return ValueType can depend its operands' ValueType.
This is a cosmetic change, no functionality impacted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48145 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 15:42:14 +00:00
Christopher Lamb
3feb0170a8
Allow insert_subreg into implicit, target-specific values.
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Change insert/extract subreg instructions to be able to be used in TableGen patterns.
Use the above features to reimplement an x86-64 pseudo instruction as a pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48130 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 06:12:08 +00:00
Dale Johannesen
b8cafe3427
Increase ISD::ParamFlags to 64 bits. Increase the ByValSize
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field to 32 bits, thus enabling correct handling of ByVal
structs bigger than 0x1ffff. Abstract interface a bit.
Fixes gcc.c-torture/execute/pr23135.c and
gcc.c-torture/execute/pr28982b.c in gcc testsuite (were ICE'ing
on ppc32, quietly producing wrong code on x86-32.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 02:17:22 +00:00
Chris Lattner
f30e1cf9b7
teach X86InstrInfo::copyRegToReg how to copy into ST(0) from
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an RFP register class.
Teach ScheduleDAG how to handle CopyToReg with different src/dst
reg classes.
This allows us to compile trivial inline asms that expect stuff
on the top of x87-fp stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48107 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 09:15:31 +00:00
Chris Lattner
5c927500c8
add some code to support cross-register class copying from
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RST -> RFP{32/64/80}. We only handle ST(0) for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48104 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 08:46:19 +00:00
Chris Lattner
90b347dc90
rearrange some code, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48101 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 07:58:04 +00:00
Chris Lattner
8dc023f684
claim ST(x) registers are 80 bits, which is true. This doesn't affect
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codegen yet because these can't be spilled (they don't exist until after RA).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48098 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 07:49:01 +00:00
Chris Lattner
afb23f48a4
rename FP_SETRESULT -> FP_SET_ST0
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 07:08:44 +00:00
Chris Lattner
6fa2f9c636
rename FpGETRESULT32 -> FpGET_ST0_32 etc. Add support for
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isel'ing value preserving FP roundings from one fp stack reg to another
into a noop, instead of stack traffic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48093 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 07:05:32 +00:00
Chris Lattner
67f453aae7
Finish implementing a readme entry: when inserting an i64 variable
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into a vector of zeros or undef, and when the top part is obviously
zero, we can just use movd + shuffle. This allows us to compile
vec_set-B.ll into:
_test3:
movl $1234567, %eax
andl 4(%esp), %eax
movd %eax, %xmm0
ret
instead of:
_test3:
subl $28, %esp
movl $1234567, %eax
andl 32(%esp), %eax
movl %eax, (%esp)
movl $0, 4(%esp)
movq (%esp), %xmm0
addl $28, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48090 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 05:42:06 +00:00
Chris Lattner
f68cbceb17
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 01:08:22 +00:00
Chris Lattner
62098040a1
Implement a readme entry, compiling
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#include <xmmintrin.h>
__m128i doload64(short x) {return _mm_set_epi16(0,0,0,0,0,0,0,1);}
into:
movl $1, %eax
movd %eax, %xmm0
ret
instead of a constant pool load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48063 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 01:05:04 +00:00
Chris Lattner
19f7969f81
1) Improve comments.
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2) Don't try to insert an i64 value into the low part of a
vector with movq on an x86-32 target. This allows us to
compile:
__m128i doload64(short x) {return _mm_set_epi16(0,0,0,0,0,0,0,1);}
into:
_doload64:
movaps LCPI1_0, %xmm0
ret
instead of:
_doload64:
subl $28, %esp
movl $0, 4(%esp)
movl $1, (%esp)
movq (%esp), %xmm0
addl $28, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 22:59:52 +00:00
Chris Lattner
c9517fb6eb
minor simplifications to this code, don't create a dead
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SCALAR_TO_VECTOR on paths that end up not using it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48056 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 22:48:29 +00:00
Chris Lattner
b607f9c822
This one looks easy, add a note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48055 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 22:32:39 +00:00
Chris Lattner
f658ad10f6
move these to the appropriate file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 22:28:45 +00:00
Evan Cheng
27b7db549e
Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48042 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 00:58:38 +00:00
Chris Lattner
d1108222fd
mark frem as expand for all legal fp types on x86, regardless of whether
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we're using SSE or not. This fixes PR2122.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07 06:36:32 +00:00
Gabor Greif
2cf36e0772
some more spelling changes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47996 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-06 10:51:21 +00:00
Chris Lattner
4d93b2f16d
evan implemented this.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47948 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 17:11:51 +00:00
Evan Cheng
e9083d669a
isTwoAddress = 1 -> Constraints.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47941 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 08:19:16 +00:00
Evan Cheng
e7b8a8b713
PSLLWri etc. are two-address instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47940 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 08:11:27 +00:00
Chris Lattner
063d825208
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47939 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 07:22:39 +00:00
Evan Cheng
b7664c6173
Ignore debugging related instructions if they get this far.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47934 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 02:34:36 +00:00
Evan Cheng
0b21390a86
Rather than asserting. Dump out the MI that we are not able to encode and abort.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47933 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 02:08:03 +00:00
Evan Cheng
6fd599fa69
Add a target lowering hook to control whether it's worthwhile to compress fp constant.
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For x86, if sse2 is available, it's not a good idea since cvtss2sd is slower than a movsd load and it prevents load folding. On x87, it's important to shrink fp constant since fldt is very expensive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47931 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 01:30:59 +00:00
Andrew Lenharth
d19189e990
64bit CAS on 32bit x86.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47929 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 01:15:49 +00:00
Evan Cheng
6130f66eaa
Refactor code. Remove duplicated functions that basically do the same thing as
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findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47927 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 00:59:57 +00:00
Andrew Lenharth
a76e2f0331
x86-64 atomics
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47903 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04 21:13:33 +00:00
Evan Cheng
32967d2c7d
80 column violations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04 03:20:06 +00:00
Evan Cheng
07b7ea1a48
Remove -always-fold-and-in-test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47871 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04 00:40:35 +00:00
Dan Gohman
4c1fa61652
Add support for lowering i64 SRA_PARTS and friends on x86-64.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47865 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-03 22:22:09 +00:00
Devang Patel
41e2397b72
s/isReturnStruct()/hasStructRetAttr()/g
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47857 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-03 21:46:28 +00:00
Chris Lattner
767486b1d5
Evan implemented these.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47828 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-02 18:05:14 +00:00
Andrew Lenharth
fe0753efba
good catch anton
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47800 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-01 23:18:21 +00:00
Andrew Lenharth
ce1105da43
make CAS work
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47799 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-01 22:27:48 +00:00
Andrew Lenharth
26ed8697d4
all but CAS working on x86
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47798 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-01 21:52:34 +00:00
Andrew Lenharth
ea7da50e5a
Add lock prefix support to x86. Also add the instructions necessary for the atomic ops. They are still marked pseudo, since I cannot figure out what format to use, but they are the correct opcode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47795 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-01 13:37:02 +00:00
Anton Korobeynikov
8213f9cf94
Use enumeration for preffered EH dwarf encoding reason
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47770 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-29 22:09:08 +00:00
Anders Carlsson
b26947e967
Use the correct instruction encodings for the 64-bit MMX movd.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47740 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-29 01:35:12 +00:00
Evan Cheng
d703ed6aed
Added option -align-loops=<true/false> to disable loop aligner pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47736 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 23:29:57 +00:00
Evan Cheng
e526d8a955
Set to default: x86 no longer fold and into test if it has more than one use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47711 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 07:46:38 +00:00
Chris Lattner
daf6c541b2
Add a random not very important note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47704 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 04:52:59 +00:00
Evan Cheng
fb8075d03f
Add a quick and dirty "loop aligner pass". x86 uses it to align its loops to 16-byte boundaries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47703 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 00:43:03 +00:00
Eli Friedman
41ce5b82da
A few more small things I've run into.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47702 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 00:21:43 +00:00
Anton Korobeynikov
cee750fb1e
Preparation step for some cleanup/generalization in EH information emission:
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provide TAI hook for selection of EH data emission format. Currently unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47699 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 23:33:50 +00:00
Evan Cheng
fd1074f171
This is done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47688 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 20:26:32 +00:00
Chris Lattner
b09916bdfb
Make X86TargetLowering::LowerSINT_TO_FP return without creating a dead
...
stack slot and store if the SINT_TO_FP is actually legal. This allows
us to compile:
double a(double b) {return (unsigned)b;}
to:
_a:
cvttsd2siq %xmm0, %rax
movl %eax, %eax
cvtsi2sdq %rax, %xmm0
ret
instead of:
_a:
subq $8, %rsp
cvttsd2siq %xmm0, %rax
movl %eax, %eax
cvtsi2sdq %rax, %xmm0
addq $8, %rsp
ret
crazy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 05:57:41 +00:00
Chris Lattner
22eedf4eec
this code is correct but strange looking ;-)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47659 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 05:48:44 +00:00
Chris Lattner
d0ba2a9c14
Compile x86-64-and-mask.ll into:
...
_test:
movl %edi, %eax
ret
instead of:
_test:
movl $4294967295, %ecx
movq %rdi, %rax
andq %rcx, %rax
ret
It would be great to write this as a Pat pattern that used subregs
instead of a 'pseudo' instruction, but I don't know how to do that
in td files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47658 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 05:47:54 +00:00
Chris Lattner
ba309d43aa
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47652 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 01:17:20 +00:00
Arnold Schwaighofer
258bb1b8e8
Refactor according to Evan's and Anton's suggestions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26 22:21:54 +00:00
Bill Wendling
74ab84c31e
Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool
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would have been a Godsend here!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47625 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26 21:11:01 +00:00
Arnold Schwaighofer
16a3e52d08
Correct function comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47606 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26 17:50:59 +00:00
Bill Wendling
85db3a96b4
De-tabify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47600 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26 10:57:23 +00:00
Arnold Schwaighofer
a2a4b475fc
Add support for intermodule tail calls on x86/32bit with
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GOT-style position independent code. Before only tail calls to
protected/hidden functions within the same module were optimized.
Now all function calls are tail call optimized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47594 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26 10:21:54 +00:00
Arnold Schwaighofer
865c68188a
Change the lowering of arguments for tail call optimized
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calls. Before arguments that could overwrite each other were
explicitly lowered to a stack slot, not giving the register allocator
a chance to optimize. Now a sequence of copyto/copyfrom virtual
registers ensures that arguments are loaded in (virtual) registers
before they are lowered to the stack slot (and might overwrite each
other). Also parameter stack slots are marked mutable for
(potentially) tail calling functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47593 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26 09:19:59 +00:00
Dan Gohman
545914311a
Revert the assert for MUL_LOHI with an unused high result; Chris
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pointed out that this isn't correct at -O0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 22:43:48 +00:00
Dale Johannesen
14e2ea9a55
Revise previous patch per review.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47573 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 22:29:22 +00:00
Dan Gohman
c2d9b5fcdf
Add an assert to verify that we don't see an
...
{S,U}MUL_LOHI with an unused high value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47569 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 22:15:55 +00:00
Dan Gohman
fcf81db600
Remove the hack that turned an {S,U}MUL_LOHI with an unused high
...
result into a MUL late in the X86 codegen process. ISD::MUL is
once again Legal on X86, so this is no longer needed. And, the
hack was suboptimal; see PR1874 for details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47567 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 21:57:04 +00:00
Dan Gohman
2e68b6f52d
Convert MaskedValueIsZero and all its users to use APInt. Also add
...
a SignBitIsZero function to simplify a common use case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47561 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 21:11:39 +00:00
Dale Johannesen
079f2a66ae
Expand removal of MMX memory copies to allow 1 level
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of TokenFactor underneath chain (seems to be enough)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25 19:20:14 +00:00
Evan Cheng
c19eca38ef
Turning on remat of pic loads.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47524 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-23 02:07:42 +00:00
Evan Cheng
b2a0abce1e
No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47522 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-23 01:47:44 +00:00
Dale Johannesen
22c3979fca
Split ParameterAttributes.h, putting the complicated
...
stuff into ParamAttrsList.h. Per feedback from
ParamAttrs changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22 22:17:59 +00:00
Dale Johannesen
3edd6dcf82
MMX vectors are passed 4-byte aligned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22 17:47:28 +00:00
Evan Cheng
d8850a512e
Allow re-materialization of pic load (controlled by -remat-pic-load for now).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47476 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22 09:25:47 +00:00
Chris Lattner
d2b1fb27df
copy mmx values from/to memory with GPRs on x86-32
...
instead of with mmx registers. This horribleness is apparently
done by gcc to avoid having to insert emms in places that really
should have it. This is the second half of rdar://5741668.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47474 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22 05:18:04 +00:00
Chris Lattner
149a4e56fc
Start using GPR's to copy around mmx value instead of mmx regs.
...
GCC apparently does this, and code depends on not having to do
emms when this happens. This is x86-64 only so far, second half
should handle x86-32.
rdar://5741668
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22 02:09:43 +00:00
Eli Friedman
a2e7efa6d3
A few minor updates, removing implemented stuff and adding a couple of
...
new things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21 21:16:49 +00:00
Chris Lattner
7c1687c196
Dan implemented one multiply issue. Replace it with another. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47431 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21 06:51:29 +00:00
Andrew Lenharth
ab0b949e0e
Atomic op support. If any gcc test uses __sync builtins, it might start failing on archs that haven't implemented them yet
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21 06:45:13 +00:00
Evan Cheng
3738f2d59f
Poorly named option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 20:57:32 +00:00
Anton Korobeynikov
4aefd6b7d4
Fix newly-introduced 4.3 warnings
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47375 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 12:07:57 +00:00
Anton Korobeynikov
7c1c261272
Remove bunch of gcc 4.3-related warnings from Target
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47369 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:22:39 +00:00
Anton Korobeynikov
ae9f3a3b7c
Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:08:44 +00:00
Evan Cheng
79964fdbaf
Disable for now. This is pessimizing code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47354 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 02:29:17 +00:00
Evan Cheng
e9c608d6cc
Add hidden option -x86-fold-and-in-test to test the effect the test / and folding change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47351 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19 23:36:51 +00:00
Chris Lattner
ce2bcc8839
Don't fold and's into test instructions if they have multiple uses.
...
This compiles test-nofold.ll into:
_test:
movl $15, %ecx
andl 4(%esp), %ecx
testl %ecx, %ecx
movl $42, %eax
cmove %ecx, %eax
ret
instead of:
_test:
movl 4(%esp), %eax
movl %eax, %ecx
andl $15, %ecx
testl $15, %eax
movl $42, %eax
cmove %ecx, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19 17:37:35 +00:00
Evan Cheng
422cba6ed0
Me not like duplicated comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47300 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19 02:05:16 +00:00
Evan Cheng
efec751a1b
- When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type.
...
- X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 23:04:32 +00:00
Dan Gohman
b00ee21f21
Chris pointed out that it's not necessary to set i64 MUL to Expand
...
on x86-32 since i64 itself is not a Legal type. And, update some
comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47282 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 19:34:53 +00:00
Chris Lattner
92b416f64e
Add a note about sext from i1 plus flags use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 18:30:13 +00:00
Dan Gohman
339ffedca9
Don't mark scalar integer multiplication as Expand on x86, since x86
...
has plain one-result scalar integer multiplication instructions.
This avoids expanding such instructions into MUL_LOHI sequences that
must be special-cased at isel time, and avoids the problem with that
code that provented memory operands from being folded.
This fixes PR1874, addressesing the most common case. The uncommon
cases of optimizing multiply-high operations will require work
in DAGCombiner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 17:55:26 +00:00
Chris Lattner
456012c72e
move PR2053 to here.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 19:43:57 +00:00
Andrew Lenharth
d497d9fab6
I cannot find a libgcc function for this builtin. Therefor expanding it to a noop (which is how it use to be treated). If someone who knows the x86 backend better than me could tell me how to get a lock prefix on an instruction, that would be nice to complete x86 support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47213 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 14:46:26 +00:00
Andrew Lenharth
22c5c1b2df
llvm.memory.barrier, and impl for x86 and alpha
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 01:24:58 +00:00
Chris Lattner
ec321b4d64
Handle \n's in value names for more targets. The asm printers
...
really really really need refactoring :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47171 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 19:04:54 +00:00
Chris Lattner
3502d0dac3
If the llvm name contains an unprintable character, don't print it in
...
the global comment. This prevents printing things like:
... # foo
bar
when the name is "foo\nbar".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47170 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 18:56:05 +00:00
Dale Johannesen
ab1a0354ec
Remove warning about 64-bit code on processor
...
that doesn't support it. Per Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 18:09:51 +00:00
Dale Johannesen
b4c9a687eb
nocona, core2 and penryn support 64 bit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47149 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 01:22:41 +00:00
Duncan Sands
00fee65fd2
In TargetLowering::LowerCallTo, don't assert that
...
the return value is zero-extended if it isn't
sign-extended. It may also be any-extended.
Also, if a floating point value was returned
in a larger floating point type, pass 1 as the
second operand to FP_ROUND, which tells it
that all the precision is in the original type.
I think this is right but I could be wrong.
Finally, when doing libcalls, set isZExt on
a parameter if it is "unsigned". Currently
isSExt is set when signed, and nothing is
set otherwise. This should be right for all
calls to standard library routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 17:28:50 +00:00
Nate Begeman
e179584f9b
Change how FP immediates are handled.
...
1) ConstantFP is now expand by default
2) ConstantFP is not turned into TargetConstantFP during Legalize
if it is legal.
This allows ConstantFP to be handled like Constant, allowing for
targets that can encode FP immediates as MachineOperands.
As a bonus, fix up Itanium FP constants, which now correctly match,
and match more constants! Hooray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47121 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 08:57:00 +00:00
Chris Lattner
eb05f90c71
upgrade some entries, remove stuff that is done.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47109 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 06:19:02 +00:00
Chris Lattner
ea1cddf546
the mid-level optimizer removes this stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47108 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 05:43:18 +00:00
Chris Lattner
48b4d96949
this one is easy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47107 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 05:41:38 +00:00
Chris Lattner
8b0cb7bcc6
This readme entry is done, testcase here: CodeGen/X86/zero-remat.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 05:39:46 +00:00
Dan Gohman
f4f92f5ebe
Assigning an APInt to 0 with plain assignment gives it a one-bit
...
size. Initialize these APInts to properly-sized zero values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 23:07:24 +00:00
Dan Gohman
977a76fbb6
Simplify some logic in ComputeMaskedBits. And change ComputeMaskedBits
...
to pass the mask APInt by value, not by reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 22:28:48 +00:00
Nicolas Geoffray
afe6c2b001
Enable exception handling int JIT
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 18:39:37 +00:00
Nate Begeman
b5041b3085
readme updates
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47051 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 07:06:12 +00:00
Evan Cheng
a4d16a1f0d
commuteInstr() can now commute non-ssa machine instrs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47043 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 02:46:49 +00:00
Dan Gohman
fd29e0eb06
Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t.
...
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47039 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 00:35:47 +00:00
Dale Johannesen
3006c39e3a
__DATA not __DATA__ is the right segment name on darwin.
...
Spotted by Nick Kledzik.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 23:35:09 +00:00
Nate Begeman
cdd1eeca2c
SSE4.1 64b integer insert/extract pattern support
...
Move formats into the formats file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 22:51:28 +00:00
Evan Cheng
9f143ce989
Only using x86-64 rip relative addressing in non-staic mode?
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 19:20:46 +00:00
Evan Cheng
add251754c
Update comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47002 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-12 07:59:55 +00:00