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814 Commits

Author SHA1 Message Date
Chris Lattner
0bd4d7eef1 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
Chris Lattner
be01a5f699 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
0eb93cf8d0 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
976ea8990e many cleanups to the pow optimizer. Allow it to handle powf, 
add support for  pow(x, 2.0) -> x*x.

llvm-svn: 49411
 2008-04-09 00:07:45 +00:00
Duncan Sands
64f15131d8 Use Intrinsic::getDeclaration in more places. 
llvm-svn: 49338
 2008-04-07 13:45:04 +00:00
Gabor Greif
6c6b8a57f3 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
8a61b02bd8 1. Drop default inline threshold back down to 200. 
2. Do not use # of basic blocks as part of the cost computation since it doesn't really figure into function size.
3. More aggressively inline function with vector code.

llvm-svn: 49061
 2008-04-01 23:59:29 +00:00
Evan Cheng
d01a2a18f8 Increasing the inline limit from (overly conservative) 200 to 300. Given each BB costs 20 and each instruction costs 5, 200 means a 4 BB function + 24 instructions (actually less because caller's size also contributes to it). 
Furthermore, double the limit when more than 10% of the callee instructions are vector instructions. Multimedia kernels tend to love inlining.

llvm-svn: 48725
 2008-03-24 06:37:48 +00:00
Dan Gohman
a363ba510c Don't include <map> in Pass.h, which doesn't need it. This requires 
adding <map> to many files that actually do need it.

llvm-svn: 48667
 2008-03-21 23:51:57 +00:00
Andrew Lenharth
2ff2bcbde8 FunctionExtractorPass has been superceded by GVExtractorPass 
llvm-svn: 48648
 2008-03-21 16:46:53 +00:00
Devang Patel
192124d0e6 Incorporate feedback. 
- Fix loop nest.
- Use RetVals.size()
- Check for null return value.

llvm-svn: 48605
 2008-03-20 18:30:32 +00:00
Zhou Sheng
fc7856f528 Take the old function's name. 
llvm-svn: 48588
 2008-03-20 08:05:05 +00:00
Chris Lattner
7925cc72c0 Reimplement the parameter attributes support, phase #1. hilights: 
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.

llvm-svn: 48289
 2008-03-12 17:45:29 +00:00
Devang Patel
0b10747ac8 Check multiple return values. 
llvm-svn: 48267
 2008-03-12 00:32:32 +00:00
Devang Patel
9e4d8236fc Fix attribute handling. 
llvm-svn: 48262
 2008-03-12 00:07:03 +00:00
Devang Patel
54b2c77a4e Handle multiple ret values. 
llvm-svn: 48254
 2008-03-11 22:24:29 +00:00
Devang Patel
0fbeba7276 Initialize. 
llvm-svn: 48253
 2008-03-11 22:08:21 +00:00
Nick Lewycky
5dd879d5b5 Turn unwind_to into "unwinds to". 
llvm-svn: 48123
 2008-03-10 02:20:00 +00:00
Ted Kremenek
b05e945be4 Fix some compilation errors on msvc: 
- "Redefinition of I" (iterator masks previous definition)
- include missing header file

Patch by Argiris Kirtzidis!

llvm-svn: 48115
 2008-03-09 18:32:50 +00:00
Nick Lewycky
efac6a28b4 And again. 
llvm-svn: 48112
 2008-03-09 17:13:05 +00:00
Nick Lewycky
dd4885aa80 Braces belong here. No functionality change. 
llvm-svn: 48111
 2008-03-09 17:11:18 +00:00
Nick Lewycky
980738baf2 Prune the unwind_to labels on BBs that don't need them. Another step in the 
removal of invoke, PR1269.

llvm-svn: 48084
 2008-03-09 04:55:16 +00:00
Andrew Lenharth
6c788376e9 add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too 
llvm-svn: 48015
 2008-03-07 19:51:57 +00:00
Devang Patel
63e7d0fe7d Skip, for now, callsites where use of sret argument is not dominated by callsite. 
llvm-svn: 47980
 2008-03-05 23:39:23 +00:00
Devang Patel
219be17d65 Filter nested structs 
llvm-svn: 47906
 2008-03-04 21:32:09 +00:00
Devang Patel
1e76b493c7 Use appropriate index to get the result value. 
llvm-svn: 47897
 2008-03-04 19:22:54 +00:00
Devang Patel
9eb2e291fb Skip sret attribute while preparing attribute list for 
new function and new call sites.

llvm-svn: 47896
 2008-03-04 19:12:58 +00:00
Devang Patel
a880f004e8 Increment counter that keeps track of total number of sret promoted. 
llvm-svn: 47892
 2008-03-04 17:48:11 +00:00
Devang Patel
aef77854f9 Skip declarations. 
llvm-svn: 47890
 2008-03-04 17:47:06 +00:00
Devang Patel
e33efc5c23 Process externally visible functions also. Later on code generator will do the right thing. 
llvm-svn: 47889
 2008-03-04 17:46:26 +00:00
Devang Patel
10d720e1ba Collect statistics. 
llvm-svn: 47888
 2008-03-04 17:44:37 +00:00
Devang Patel
d0d7028a2b s/isReturnStruct()/hasStructRetAttr()/g 
llvm-svn: 47857
 2008-03-03 21:46:28 +00:00
Devang Patel
f7259bfa0b Preserve paramater attributes. 
llvm-svn: 47847
 2008-03-03 18:36:03 +00:00
Chris Lattner
1e21cae4cd allow specified inline threshold to be negative, as the value is 
itself sometimes negative.

llvm-svn: 47786
 2008-03-01 08:09:51 +00:00
Devang Patel
79236a7c7a Fix cut-n-pasto. 
llvm-svn: 47777
 2008-02-29 23:41:13 +00:00
Devang Patel
cb72d92471 Add pass to promote sret. 
This pass transforms 

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal void @foo(%struct._Point* sret  %agg.result)

into

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal %struct._Point @foo()

This pass updates foo() clients appropriately to use
getresult instruction to extract return values.

This pass is not yet ready for prime time.

llvm-svn: 47776
 2008-02-29 23:34:08 +00:00
Dale Johannesen
ae08bdb4cf Split ParameterAttributes.h, putting the complicated 
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.

llvm-svn: 47504
 2008-02-22 22:17:59 +00:00
Anton Korobeynikov
2523c8be38 Get rid of hash_map. Use StringMap instead 
llvm-svn: 47373
 2008-02-20 11:27:49 +00:00
Anton Korobeynikov
fd6b669c80 Make Transforms to be 4.3 warnings-clean 
llvm-svn: 47371
 2008-02-20 11:26:25 +00:00
Anton Korobeynikov
0c5e186924 Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
llvm-svn: 47367
 2008-02-20 11:08:44 +00:00
Dale Johannesen
ecb2b233b1 Expand ParameterAttributes to 32 bits (in preparation 
for adding alignment info, not there yet).  Clean up
interfaces to reference ParameterAttributes consistently.

llvm-svn: 47342
 2008-02-19 21:38:47 +00:00
Duncan Sands
a85448506d Simplify caller updating using a CallSite, as 
requested by Chris.  While there, do the same
for an existing function committed by someone
called "lattner" :)

llvm-svn: 47273
 2008-02-18 17:32:13 +00:00
Duncan Sands
cd0325cce1 Remove any 'nest' parameter attributes if the function 
is not passed as an argument to a trampoline intrinsic.

llvm-svn: 47220
 2008-02-16 20:56:04 +00:00
Chris Lattner
c16c85444c remove some dead code. 
llvm-svn: 47066
 2008-02-13 17:18:26 +00:00
Duncan Sands
454a8eaee9 Don't drop function/call return attributes like 'nounwind'. 
llvm-svn: 46645
 2008-02-01 20:37:16 +00:00
Chris Lattner
e08ec140e0 Don't let globalopt hack on volatile loads or stores. 
llvm-svn: 46523
 2008-01-29 19:01:37 +00:00
Dan Gohman
aad233ea10 Use empty() instead of comparing size() with zero. 
llvm-svn: 46514
 2008-01-29 13:02:09 +00:00
Chris Lattner
dc0c4352bd Transform calls to memcpy into llvm.memcpy calls, patch by Eli Friedman. 
llvm-svn: 46433
 2008-01-28 04:41:43 +00:00
Evan Cheng
c187163bab DAE bug fix. Don't lose parameter attributes on vararg arguments. 
llvm-svn: 46113
 2008-01-17 04:18:54 +00:00
Chris Lattner
c32be7e6b2 Fix arg promotion to propagate the correct attrs on the calls to 
promoted functions.  This is important for varargs calls in 
particular.  Thanks to duncan for providing a great testcase.

llvm-svn: 46108
 2008-01-17 01:17:03 +00:00