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38094 Commits

Author SHA1 Message Date
Dan Gohman 8c7cf88f7e Fix a bug that prevented x86-64 from using rep.movsq for 
8-byte-aligned data.

llvm-svn: 49571
 2008-04-12 02:35:39 +00:00
Nate Begeman 7417348a7e 80 col fix 
llvm-svn: 49569
 2008-04-12 00:47:57 +00:00
Nate Begeman 4840515dff Restore code to disable crash catcher on older OS X systems 
llvm-svn: 49568
 2008-04-12 00:47:46 +00:00
Evan Cheng 213ea6b276 Add debugging code. 
llvm-svn: 49566
 2008-04-12 00:22:01 +00:00
Chris Lattner ad281e8e19 Reenable JIT symbol table. 
llvm-svn: 49548
 2008-04-11 18:11:56 +00:00
Evan Cheng 305d268ac3 Do not add empty live intervals to handled_. They should never be undone for backtracking. 
llvm-svn: 49544
 2008-04-11 17:55:47 +00:00
Evan Cheng 33281864c1 If a PHI node has a single implicit_def source, replace it with an implicit_def instead of a copy. 
llvm-svn: 49543
 2008-04-11 17:54:45 +00:00
Evan Cheng 499ffa9055 Use of implicit_def is not part of live interval. Create empty intervals for the uses when the live interval is being spilled. 
llvm-svn: 49542
 2008-04-11 17:53:36 +00:00
Devang Patel bde1bbed16 Change llvm tools install location. 
llvm-svn: 49540
 2008-04-11 17:45:39 +00:00
Chris Lattner 0b596c3f5a improvements for IntrusiveRefCntPtr, patch by Mikhail Glushenkov 
llvm-svn: 49538
 2008-04-11 16:42:06 +00:00
Duncan Sands 21285fc04c The Ada front-end from the LLVM 2.2 release 
cannot be build with GNAT GPL 2006, only with
GNAT GPL 2005.

llvm-svn: 49529
 2008-04-11 13:24:43 +00:00
Gabor Greif c422383e08 detabify 
llvm-svn: 49524
 2008-04-11 09:34:57 +00:00
Owen Anderson 90bde997b3 Add testcase for PR2213. 
llvm-svn: 49517
 2008-04-11 05:13:32 +00:00
Owen Anderson 1e73f29a7f Fix PR2213 by simultaneously making GVN more aggressive with the return values 
of calls and less aggressive with non-readnone calls.

llvm-svn: 49516
 2008-04-11 05:11:49 +00:00
Evan Cheng b53d560150 New test. 
llvm-svn: 49514
 2008-04-10 23:49:09 +00:00
Evan Cheng c6864b6652 Remove implicit_def instructions that become dead as result of coalescing. 
llvm-svn: 49513
 2008-04-10 23:48:35 +00:00
Evan Cheng 2cb98eb4bb Allow registers defined by implicit_def to be clobbered. 
llvm-svn: 49512
 2008-04-10 23:47:53 +00:00
Dan Gohman 9b5ffc8408 Fix a typo in a comment. 
llvm-svn: 49504
 2008-04-10 23:02:38 +00:00
Dan Gohman 7603a182cc Fix a typo in a comment. 
llvm-svn: 49502
 2008-04-10 22:27:06 +00:00
Owen Anderson 53336d8055 Fix for PR2190. Memdep's non-local caching was checking dirtied blocks in the 
wrong order.

llvm-svn: 49499
 2008-04-10 22:13:32 +00:00
Dan Gohman f4bc782495 Make several symbols static. 
llvm-svn: 49496
 2008-04-10 21:11:47 +00:00
Dan Gohman 99b7b3f03b Teach InstCombine's ComputeMaskedBits to handle pointer expressions 
in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment
as a ComputeMaskedBits problem, moving all of its special alignment
knowledge to ComputeMaskedBits as low-zero-bits knowledge.

Also, teach ComputeMaskedBits a few basic things about Mul and PHI
instructions.

This improves ComputeMaskedBits-based simplifications in a few cases,
but more noticeably it significantly improves instcombine's alignment
detection for loads, stores, and memory intrinsics.

llvm-svn: 49492
 2008-04-10 18:43:06 +00:00
Evan Cheng 16ea87d6ee A copy instruction may use a register multiple times on some targets. Change them all. 
llvm-svn: 49491
 2008-04-10 18:38:47 +00:00
Evan Cheng 5e1971c894 Add comment. 
llvm-svn: 49469
 2008-04-10 08:03:14 +00:00
Chris Lattner aeb23a8a34 add a note, this is actually not too bad to implement. 
llvm-svn: 49466
 2008-04-10 05:54:50 +00:00
Chris Lattner c692188075 move the x86-32 part of PR2108 here. 
llvm-svn: 49465
 2008-04-10 05:37:47 +00:00
Chris Lattner ad75302497 Fix the x86-64 side of PR2108 by adding a v2f64 version of 
MOVZQI2PQIrr.  This would be better handled as a dag combine 
(with the goal of eliminating the bitconvert) but I don't know
how to do that safely.  Thoughts welcome.

llvm-svn: 49463
 2008-04-10 05:13:43 +00:00
Chris Lattner 57dd77462b produce an error on invalid input instead of asserting: 
def : Pat<((v2f64 (vector_shuffle immAllZerosV_bc,
           ^

llvm-svn: 49462
 2008-04-10 04:48:34 +00:00
Evan Cheng 9d339849ee Teach branch folding pass about implicit_def instructions. Unfortunately we can't just eliminate them since register scavenger expects every register use to be defined. However, we can delete them when there are no intra-block uses. Carefully removing some implicit def's which enable more blocks to be optimized away. 
llvm-svn: 49461
 2008-04-10 02:32:10 +00:00
Chris Lattner a29d2536aa Disable an xform we've had for a long time, pow(x,0.5) -> sqrt. 
This is not safe for all inputs.

llvm-svn: 49458
 2008-04-10 02:07:51 +00:00
Evan Cheng 2025a490d0 Move memcpy / memset optimization pass after GVN. 
llvm-svn: 49457
 2008-04-10 01:33:05 +00:00
Evan Cheng c8eeb752a3 - More aggressively coalescing away copies whose source is defined by an implicit_def. 
- Added insert_subreg coalescing support.

llvm-svn: 49448
 2008-04-09 20:57:25 +00:00
Dan Gohman 33b3300178 Make isVectorClearMaskLegal's operand list const. 
llvm-svn: 49446
 2008-04-09 20:09:42 +00:00
Dan Gohman 44b3005e86 Fix some minor errors in comments. 
llvm-svn: 49445
 2008-04-09 20:08:06 +00:00
Dan Gohman 3049516bd5 Add const qualifiers. 
llvm-svn: 49443
 2008-04-09 18:31:41 +00:00
Dan Gohman bb0022b810 Update comments to use 2.0 syntax type names. 
llvm-svn: 49442
 2008-04-09 18:24:25 +00:00
Dan Gohman 3d074a3125 Add XMM1 as a second return value register for f32 and f64 on x86-64. This 
is needed for the x86-64-ABI handling of structs that contain floating-point
members that are returned by value.

llvm-svn: 49441
 2008-04-09 17:54:37 +00:00
Dan Gohman cbf87313a2 Add DX as a second return value register for i16 on x86. 
llvm-svn: 49440
 2008-04-09 17:53:38 +00:00
Chris Lattner 802134fc02 Generalize getUnaryFloatFunction to handle any FP unary function, automatically 
figuring out the suffix to use.  implement pow(2,x) -> exp2(x).

llvm-svn: 49437
 2008-04-09 17:48:11 +00:00
Chris Lattner 091afc7714 remove capital letter from test name. 
llvm-svn: 49436
 2008-04-09 17:46:36 +00:00
Chris Lattner cca74e5ab9 use the new ConstantFP::get method to make this work with 
long double and simplify the code.

llvm-svn: 49435
 2008-04-09 17:17:35 +00:00
Chris Lattner 0704e3acff ConstantFP::get should be static. 
llvm-svn: 49434
 2008-04-09 17:16:28 +00:00
Nate Begeman a6063118c6 Fix a bug where an incorrect bit mask would be generated if a target's last asm 
string began at a power of 2 in the string index.  For example, if "ret" started
at position 16, the ret instruction would be assigned code 16, but the mask would be AsmChars[] + Code & 15, not Code & 31.

llvm-svn: 49433
 2008-04-09 16:24:11 +00:00
Devang Patel a7dfbc0366 Be conservative if getresult operand is neither call nor invoke. 
llvm-svn: 49430
 2008-04-09 15:58:24 +00:00
Owen Anderson ef9a6fd5c2 Factor a bunch of functionality related to memcpy and memset transforms out of 
GVN and into its own pass.

llvm-svn: 49419
 2008-04-09 08:23:16 +00:00
Owen Anderson 8ee792d1b6 Remove accidentally duplicated code. 
llvm-svn: 49418
 2008-04-09 07:55:01 +00:00
Evan Cheng 0515472470 Unbreak teh build. 
llvm-svn: 49417
 2008-04-09 07:06:01 +00:00
Chris Lattner 98bd939af8 add a simplified accessor for creating an fp constant of a 
particular value but variable type.

llvm-svn: 49416
 2008-04-09 06:38:30 +00:00
Evan Cheng aa3b55f842 Missed a hasInterval check. 
llvm-svn: 49415
 2008-04-09 01:30:15 +00:00
Chris Lattner b5b3e3136b add a version of ConstantFP::get that doesn't take a redundant Type* value, 
start migrating code over to use it.

llvm-svn: 49413
 2008-04-09 00:45:01 +00:00