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92deeaf7a3
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Author SHA1 Message Date
Chris Lattner
92deeaf7a3 * Remove all cfg simplification stuff for a new cfg simplify pass (todo) 
* Convert to worklist instead of iterative algorithm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2510 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 04:24:11 +00:00
Chris Lattner
6536cfec4a Finish up the updates to the language reference 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2509 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 22:08:29 +00:00
Chris Lattner
07a228d1f7 Mark analyses that only depend on the CFG of a function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2507 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 19:32:07 +00:00
Chris Lattner
27ad137d5e Make functions that preserve the CFG not invalidate analyses that only depend 
on the CFG of a function


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2506 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 19:31:52 +00:00
Chris Lattner
4445519fab Add support for passes to announce that they only depend on the CFG of a 
function.  This is crude but effective


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2505 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 19:31:16 +00:00
Chris Lattner
d661937352 Only do masking for unsigned values! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2504 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:54:59 +00:00
Chris Lattner
5f06e10a84 GCSE is faster than SCCP, and it makes SCCP's job easier, so run it first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2503 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:54:12 +00:00
Chris Lattner
89df1b58a9 * 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2502 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:21:31 +00:00
Chris Lattner
473945d1dc Handle X = phi Y --> X = Y 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2501 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:06:38 +00:00
Chris Lattner
fee97e83ce Make the testcase more interesting so that DCE does not eliminate it. 
Use DIE instead of DCE anyway


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2500 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:59:23 +00:00
Chris Lattner
a803899af5 Move a bunch of code to a .cpp file, don't #include Instruction.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2499 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:54:50 +00:00
Chris Lattner
178414c3cf Move code out of header file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2498 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:54:27 +00:00
Chris Lattner
f51825e3fb * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2497 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:54:10 +00:00
Chris Lattner
db93124d41 Add #include removed from ConstantHandling.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2496 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:53:10 +00:00
Chris Lattner
32e1740c7c New testcase for PHI folding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2495 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:43:38 +00:00
Chris Lattner
dfe81ab87a Clean up ADCE by removing extraneous wrapper class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2494 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:27:57 +00:00
Chris Lattner
ed3a55005d Combine not (not X) -> X 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2493 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:03:21 +00:00
Chris Lattner
9bfed886a8 New testcase to make sure not instructions get combined 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2492 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:00:47 +00:00
Chris Lattner
eadd32cda2 Instruction Combination can create a ton of trivially dead instructions. Remove 
them with an DIE pass before more expensive optimizations are run.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2491 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:52:15 +00:00
Chris Lattner
b35dde1df4 Support more cases... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2490 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:49:18 +00:00
Chris Lattner
fa78358a05 More tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2489 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:44:53 +00:00
Chris Lattner
c1bfd13c0a Add testcase for -(-A) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2488 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:19:16 +00:00
Chris Lattner
45d8b917be Change usage of isPointerType to use isa 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2487 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:15:49 +00:00
Chris Lattner
9b625030c8 Replace all usages of Type::isPointerType with isa<PointerType> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2486 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:15:30 +00:00
Chris Lattner
d44023ecb7 Implement getPrimitiveSize() 
don't use isPointerType()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2485 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:14:39 +00:00
Chris Lattner
3f5b877dd4 Add many more instruction combination simplifications 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2484 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:14:14 +00:00
Chris Lattner
4dedcb2670 * 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>(..)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2483 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:12:53 +00:00
Chris Lattner
79a31b1782 Fix testcase, the 'shift out all bits' doesn't apply to signed types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2482 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:11:31 +00:00
Chris Lattner
11fe8dfff7 Void and Label values cannot be acted on directly so they have zero size 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2481 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 15:10:15 +00:00
Chris Lattner
829b79dd8c More testcases I don't want to forget about 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2480 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 05:51:26 +00:00
Chris Lattner
33a90b18e0 New testcases so I don't forget about these algebraic simplifications 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2479 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 05:43:36 +00:00
Chris Lattner
97555b59b3 New testcase so I don't forget about this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2478 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 05:35:20 +00:00
Chris Lattner
c3a53f9aa8 Testcase for missed merge opportunity 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2477 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:11:32 +00:00
Chris Lattner
9c1291c85e Run DCE AFTER SCCP and GCSE! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2476 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:04:17 +00:00
Chris Lattner
267730367f Build CFGsimplify directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2475 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:03:55 +00:00
Chris Lattner
2b7d320d90 Updated documentation a _LOT_ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2474 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:03:22 +00:00
Chris Lattner
05dcf353fc Remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2473 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:03:09 +00:00
Chris Lattner
cdac78b8a4 Merge blocks like this: 
void "test3"(bool %T) {
        br bool %T, label %BB1, label %BB1
BB1:
        ret void
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2472 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:02:02 +00:00
Chris Lattner
4c1061f58c Implement constant propogation of shift instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2471 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:01:37 +00:00
Chris Lattner
cf4929fa27 Implement constant propogation of shifts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2470 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:00:54 +00:00
Chris Lattner
03e2acb37f Print functions with curly braces instead of begin/end 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2469 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:00:40 +00:00
Chris Lattner
fac8a7052f Add a range remove method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2468 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 02:59:52 +00:00
Chris Lattner
cb6d70c6e0 Implement two iterator remove method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2467 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 02:59:34 +00:00
Chris Lattner
2077ffab85 Initial testcases for CFG simplify (which is part of DCE for now) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2466 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 02:37:38 +00:00
Chris Lattner
11504fd62d Test moved to SCCP test directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2465 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 00:52:06 +00:00
Chris Lattner
44540ddaa0 Implement remainder 
Fix implementation of Not


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2464 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-03 21:41:07 +00:00
Chris Lattner
bdd15ad565 Implement remainder 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2463 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-03 21:40:37 +00:00
Chris Lattner
8a2e64ce87 New testcase for bugs in the constant propogator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2462 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-03 20:25:40 +00:00
Chris Lattner
6a7cd2206b Add tests for floating point remainder elimination 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2461 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-03 20:16:29 +00:00
Chris Lattner
8e122e1148 New testcase to see if constant propogation of remainder is implemented 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2460 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-03 20:14:21 +00:00