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
Chris Lattner
4f538507b6
This testcase is a sanity check
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2459 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-03 20:12:31 +00:00
Chris Lattner
905f311d05
Fix bug: test/Regression/Transforms/SCCP/2002-05-03-NotOperator.ll
...
by using the ~ operator instead of !
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2458 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-03 20:09:52 +00:00
Chris Lattner
b6df79a6b2
Add new testcase for general constant prop.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2457 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-03 19:58:17 +00:00