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Author SHA1 Message Date
Chris Lattner
cb8c2d31c2 Straighten out makefiles after moving code to new Transform Utils library 
llvm-svn: 2520
 2002-05-07 18:18:26 +00:00
Chris Lattner
0b8c2d8b29 Factor code out to the Transform Utils library 
llvm-svn: 2519
 2002-05-07 18:18:00 +00:00
Chris Lattner
c5a6d978b8 Reduce dependance on TransformInternals.h, instead using the TransformUtils library 
llvm-svn: 2518
 2002-05-07 18:12:18 +00:00
Chris Lattner
a35a291f7b Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h 
llvm-svn: 2517
 2002-05-07 18:11:30 +00:00
Chris Lattner
c099f62190 Factor code out to the TransformUtils library 
llvm-svn: 2516
 2002-05-07 18:10:55 +00:00
Chris Lattner
7b20305ef9 Factor code out of TransformInternals into the Transform Utils library 
llvm-svn: 2515
 2002-05-07 18:09:15 +00:00
Chris Lattner
e817245564 Build Transforms Utils library 
llvm-svn: 2514
 2002-05-07 18:08:50 +00:00
Chris Lattner
d5477af051 Add code pulled out of TransformInternals.cpp, ConstProp.cpp, and DCE.cpp 
llvm-svn: 2513
 2002-05-07 18:07:59 +00:00
Chris Lattner
394781b660 * Convert InstWorkList to vector instead of set, because on big programs it 
is empirically faster by a noticable margin, even though duplicates can
  happen.

llvm-svn: 2511
 2002-05-07 04:29:32 +00:00
Chris Lattner
4a830e1a4a * Remove all cfg simplification stuff for a new cfg simplify pass (todo) 
* Convert to worklist instead of iterative algorithm

llvm-svn: 2510
 2002-05-07 04:24:11 +00:00
Chris Lattner
6b0fe18eb2 Finish up the updates to the language reference 
llvm-svn: 2509
 2002-05-06 22:08:29 +00:00
Chris Lattner
44c4a3f18f Mark analyses that only depend on the CFG of a function 
llvm-svn: 2507
 2002-05-06 19:32:07 +00:00
Chris Lattner
06c3ae573f Make functions that preserve the CFG not invalidate analyses that only depend 
on the CFG of a function

llvm-svn: 2506
 2002-05-06 19:31:52 +00:00
Chris Lattner
bd5095f570 Add support for passes to announce that they only depend on the CFG of a 
function.  This is crude but effective

llvm-svn: 2505
 2002-05-06 19:31:16 +00:00
Chris Lattner
ca538273d4 Only do masking for unsigned values! 
llvm-svn: 2504
 2002-05-06 18:54:59 +00:00
Chris Lattner
ee7b1b29a9 GCSE is faster than SCCP, and it makes SCCP's job easier, so run it first. 
llvm-svn: 2503
 2002-05-06 18:54:12 +00:00
Chris Lattner
66ff017174 * Eliminate dead code that should have been removed in last revision 
* Convert main constant propogation pass to be worklist driven instead of
  iterative.
* -constprop pass no longer "constant propogates" terminator instructions
   - CFG is now preserved!

llvm-svn: 2502
 2002-05-06 18:21:31 +00:00
Chris Lattner
24ebec1273 Handle X = phi Y --> X = Y 
llvm-svn: 2501
 2002-05-06 18:06:38 +00:00
Chris Lattner
8866ffa232 Make the testcase more interesting so that DCE does not eliminate it. 
Use DIE instead of DCE anyway

llvm-svn: 2500
 2002-05-06 17:59:23 +00:00
Chris Lattner
7d13e2f392 Move a bunch of code to a .cpp file, don't #include Instruction.h 
llvm-svn: 2499
 2002-05-06 17:54:50 +00:00
Chris Lattner
e2242ebf8e Move code out of header file 
llvm-svn: 2498
 2002-05-06 17:54:27 +00:00
Chris Lattner
910ca80941 * Use simplified interface to constant propogation stuff. 
* Remove dead PHI case (which could not work due to getNumOperands rather than
  getNumIncomingValues.  This really belongs in InstCombine, anyway so we'll
  move it there.

llvm-svn: 2497
 2002-05-06 17:54:10 +00:00
Chris Lattner
47fb300c56 Add #include removed from ConstantHandling.h 
llvm-svn: 2496
 2002-05-06 17:53:10 +00:00
Chris Lattner
8d68e13ccb New testcase for PHI folding 
llvm-svn: 2495
 2002-05-06 17:43:38 +00:00
Chris Lattner
b40c1bf6f7 Clean up ADCE by removing extraneous wrapper class 
llvm-svn: 2494
 2002-05-06 17:27:57 +00:00
Chris Lattner
c5279917bc Combine not (not X) -> X 
llvm-svn: 2493
 2002-05-06 17:03:21 +00:00
Chris Lattner
a067255180 New testcase to make sure not instructions get combined 
llvm-svn: 2492
 2002-05-06 17:00:47 +00:00
Chris Lattner
6ba1c2d113 Instruction Combination can create a ton of trivially dead instructions. Remove 
them with an DIE pass before more expensive optimizations are run.

llvm-svn: 2491
 2002-05-06 16:52:15 +00:00
Chris Lattner
24a94a50d8 Support more cases... 
llvm-svn: 2490
 2002-05-06 16:49:18 +00:00
Chris Lattner
a7c5a80fa8 More tests 
llvm-svn: 2489
 2002-05-06 16:44:53 +00:00
Chris Lattner
f5ca08da87 Add testcase for -(-A) 
llvm-svn: 2488
 2002-05-06 16:19:16 +00:00
Chris Lattner
8898eec72c Change usage of isPointerType to use isa 
llvm-svn: 2487
 2002-05-06 16:15:49 +00:00
Chris Lattner
fd8d5b852c Replace all usages of Type::isPointerType with isa<PointerType> 
llvm-svn: 2486
 2002-05-06 16:15:30 +00:00
Chris Lattner
17ac289374 Implement getPrimitiveSize() 
don't use isPointerType()

llvm-svn: 2485
 2002-05-06 16:14:39 +00:00
Chris Lattner
24ebdf3f74 Add many more instruction combination simplifications 
llvm-svn: 2484
 2002-05-06 16:14:14 +00:00
Chris Lattner
3bab8f6123 * Add getPrimitiveSize method 
* Remove isPointerType, isMethodType, etc... methods.  Use isa<> instead
* Added specialization of isa for pointer types so that DerivedTypes.h doesn't
  have to be #included to use isa<PointerType>(..)

llvm-svn: 2483
 2002-05-06 16:12:53 +00:00
Chris Lattner
a81c619d2b Fix testcase, the 'shift out all bits' doesn't apply to signed types. 
llvm-svn: 2482
 2002-05-06 16:11:31 +00:00
Chris Lattner
07c6629280 Void and Label values cannot be acted on directly so they have zero size 
llvm-svn: 2481
 2002-05-06 15:10:15 +00:00
Chris Lattner
4e94e9328e More testcases I don't want to forget about 
llvm-svn: 2480
 2002-05-06 05:51:26 +00:00
Chris Lattner
c019944886 New testcases so I don't forget about these algebraic simplifications 
llvm-svn: 2479
 2002-05-06 05:43:36 +00:00
Chris Lattner
36af244bcb New testcase so I don't forget about this. 
llvm-svn: 2478
 2002-05-06 05:35:20 +00:00
Chris Lattner
34a909060c Testcase for missed merge opportunity 
llvm-svn: 2477
 2002-05-06 03:11:32 +00:00
Chris Lattner
0ba1f2e45f Run DCE AFTER SCCP and GCSE! 
llvm-svn: 2476
 2002-05-06 03:04:17 +00:00
Chris Lattner
bc54decdc7 Build CFGsimplify directory 
llvm-svn: 2475
 2002-05-06 03:03:55 +00:00
Chris Lattner
c0699e7040 Updated documentation a _LOT_ 
llvm-svn: 2474
 2002-05-06 03:03:22 +00:00
Chris Lattner
728a84e0f7 Remove dead code 
llvm-svn: 2473
 2002-05-06 03:03:09 +00:00
Chris Lattner
ef7f8fc474 Merge blocks like this: 
void "test3"(bool %T) {
        br bool %T, label %BB1, label %BB1
BB1:
        ret void
}

llvm-svn: 2472
 2002-05-06 03:02:02 +00:00
Chris Lattner
d12eac0b1b Implement constant propogation of shift instructions 
llvm-svn: 2471
 2002-05-06 03:01:37 +00:00
Chris Lattner
5b5663b806 Implement constant propogation of shifts 
llvm-svn: 2470
 2002-05-06 03:00:54 +00:00
Chris Lattner
dfb7d63b15 Print functions with curly braces instead of begin/end 
llvm-svn: 2469
 2002-05-06 03:00:40 +00:00