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3241 Commits

Author SHA1 Message Date
Gabor Greif e9ecc68d8f API changes for class Use size reduction, wave 1. 
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
 2008-04-06 20:25:17 +00:00
Evan Cheng f77b5ef3d0 Favors pshufd over shufps when shuffling elements from one vector. pshufd is faster than shufps. 
llvm-svn: 49244
 2008-04-05 00:30:36 +00:00
Evan Cheng 6c66bd368e Re-enable SSE4. 
llvm-svn: 49158
 2008-04-03 08:53:29 +00:00
Evan Cheng 6db4b4cc65 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. 
llvm-svn: 49157
 2008-04-03 08:53:17 +00:00
Evan Cheng d9129d1de3 Cosmetic 
llvm-svn: 49156
 2008-04-03 07:45:18 +00:00
Evan Cheng 3063c5546e Temporarily disabling SSE4 until we fix the encoding issues. 
llvm-svn: 49129
 2008-04-03 04:49:54 +00:00
Evan Cheng 025cea1126 Backing out 48222 temporarily. 
llvm-svn: 49124
 2008-04-03 03:13:16 +00:00
Dale Johannesen 8780ecbbac Cosmetic changes per EH patch review feedback. 
llvm-svn: 49096
 2008-04-02 17:04:45 +00:00
Anton Korobeynikov 20c9e4cbee Add new CC lowering rule: provide a list of registers, which can be 'shadowed', 
when some another register is used for argument passing.
Currently is used on Win64.

llvm-svn: 49079
 2008-04-02 05:23:57 +00:00
Dale Johannesen fd967cf3fa Recommitting EH patch; this should answer most of the 
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.

llvm-svn: 49064
 2008-04-02 00:25:04 +00:00
Evan Cheng b86595fb0a 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. 
llvm-svn: 49059
 2008-04-01 23:26:12 +00:00
Evan Cheng 19a6dd9f2a Remove unnecessary and non-deterministic checking code. Re-enable remat of load from gv stub. 
llvm-svn: 49054
 2008-04-01 21:38:20 +00:00
Dan Gohman cb9f8f6e4e Don't use __bzero for memset if the second argument isn't zero. 
llvm-svn: 49050
 2008-04-01 20:56:18 +00:00
Dan Gohman 980d7200c1 Speculatively micro-optimize memory-zeroing calls on Darwin 10. 
llvm-svn: 49048
 2008-04-01 20:38:36 +00:00
Dale Johannesen 5e4e051c2a Revert 49006 for the moment. 
llvm-svn: 49046
 2008-04-01 20:00:57 +00:00
Evan Cheng 306e3dcff4 Disabling remat of load from gv stub (temporarily) again to fix llvmgcc bootstrap miscompare. 
llvm-svn: 49037
 2008-04-01 07:33:13 +00:00
Dale Johannesen efa81a6979 Accept 'y' constraint (MMX) in inline asm. 
llvm-svn: 49011
 2008-04-01 00:57:48 +00:00
Dale Johannesen 7d02cf3c9c Emit exception handling info for functions which are 
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.

llvm-svn: 49006
 2008-03-31 23:40:23 +00:00
Evan Cheng e4f77c69ac It's not safe to fold a load from GV stub or constantpool into a two-address use. 
llvm-svn: 49002
 2008-03-31 23:19:51 +00:00
Evan Cheng ed6e34fe41 Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo. 
llvm-svn: 48995
 2008-03-31 20:40:39 +00:00
Evan Cheng 1973a46cd3 Re-apply 48911. 
llvm-svn: 48977
 2008-03-31 07:54:19 +00:00
Dan Gohman fd2eb00cc2 Fix a tokenfactor node to use the load chain rather than the 
load value. This fixes PR2177.

llvm-svn: 48932
 2008-03-28 23:45:16 +00:00
Evan Cheng b8654202dd Backing out 48911 for now. It's breaking stuff. 
llvm-svn: 48922
 2008-03-28 17:49:06 +00:00
Evan Cheng 81e0c9a32c New entry. 
llvm-svn: 48912
 2008-03-28 07:07:06 +00:00
Evan Cheng 9ae4d7b719 Load from stub is already re-materializable. 
llvm-svn: 48911
 2008-03-28 06:49:25 +00:00
Evan Cheng 308e564693 Code clean up. 
llvm-svn: 48856
 2008-03-27 01:45:11 +00:00
Evan Cheng 29e62a59f3 Allow certain lea instructions to be rematerialized. 
llvm-svn: 48855
 2008-03-27 01:41:09 +00:00
Evan Cheng 4fb07c6500 Remove an unused command line option. 
llvm-svn: 48854
 2008-03-27 01:30:24 +00:00
Roman Levenstein 358e04a185 Use a linked data structure for the uses lists of an SDNode, just like 
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. 

llvm-svn: 48822
 2008-03-26 12:39:26 +00:00
Evan Cheng 292063603e Fix some SSE4.1 instruction encoding bugs. 
llvm-svn: 48815
 2008-03-26 08:11:49 +00:00
Dale Johannesen ad6c23d5e9 Use ## for comment delimiter on darwin x86-32, so 
llvm's output .s files will go through gcc -std=c99
without triggering preprocesser errors.  Approach
suggested by Daveed Vandevoorde.

llvm-svn: 48808
 2008-03-25 23:29:30 +00:00
Evan Cheng ddc58ff92a Smaller function alignment when optimizing for size. 
llvm-svn: 48805
 2008-03-25 22:29:46 +00:00
Dan Gohman c60c67fc37 Add explicit keywords. 
llvm-svn: 48801
 2008-03-25 22:06:05 +00:00
Dan Gohman bdc24adaaf A quick nm audit turned up several fixed tables and objects that were 
marked read-write. Use const so that they can be allocated in a
read-only segment.

llvm-svn: 48800
 2008-03-25 21:45:14 +00:00
Dan Gohman 883cbfd0ba Add CMP32mr and friends to the load-unfolding table. Among 
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.

llvm-svn: 48777
 2008-03-25 16:53:19 +00:00
Evan Cheng 615488ab45 - 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. 
llvm-svn: 48746
 2008-03-24 21:52:23 +00:00
Evan Cheng 58db865d6e Remove duplicated entries. 
llvm-svn: 48714
 2008-03-23 22:56:07 +00:00
Anton Korobeynikov 1fdd5e9133 Minor typo fixes. Also add another FIXME. 
llvm-svn: 48710
 2008-03-23 20:32:06 +00:00
Anton Korobeynikov 17fb491469 Add license header 
llvm-svn: 48707
 2008-03-23 14:53:18 +00:00
Anton Korobeynikov 9f0e820fa3 Add Win64 compilation callback. This allows easy examples to be JITed on Win64! 
llvm-svn: 48706
 2008-03-23 14:44:32 +00:00
Anton Korobeynikov a347663762 Provide a JIT selector on win64 
llvm-svn: 48704
 2008-03-23 13:43:47 +00:00
Anton Korobeynikov 7574ead985 Hack out the PIC mode on Win64 targets. This needs to be investigated later. 
llvm-svn: 48703
 2008-03-23 13:41:18 +00:00
Anton Korobeynikov 4733e72a25 Code cleanup. Provide generic way of selecting JIT pointer bitwidth regardless 
of compiler used.

llvm-svn: 48702
 2008-03-23 13:40:45 +00:00
Anton Korobeynikov bd47269f13 Remove old-standing obsolete code. 
llvm-svn: 48701
 2008-03-23 12:32:54 +00:00
Anton Korobeynikov cec773d8e7 Honour built-in defines on win64 targets for automatically subtarget recognize. 
Force stack alignment to 16 bytes on win targets.

llvm-svn: 48695
 2008-03-22 21:18:22 +00:00
Anton Korobeynikov 07a789d2b5 Recognize "windows" in target triple, not only "win32" 
llvm-svn: 48694
 2008-03-22 21:12:53 +00:00
Anton Korobeynikov b86e0936f1 Add information about callee-saved registers on Win64 
llvm-svn: 48692
 2008-03-22 21:04:01 +00:00
Anton Korobeynikov 7f125b2ba5 Add convenient helper for win64 check. Simplify things slightly. 
llvm-svn: 48691
 2008-03-22 20:57:27 +00:00
Anton Korobeynikov 7b4f4e1a86 Initial support for Win64 calling conventions. Still in early state. 
llvm-svn: 48690
 2008-03-22 20:37:30 +00:00
Anton Korobeynikov 2fa75184f3 Another comments fixing 
llvm-svn: 48683
 2008-03-22 07:53:40 +00:00