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Author SHA1 Message Date
Chris Lattner
f54d0dea8f New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2628 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 19:56:14 +00:00
Chris Lattner
86c25fd556 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2627 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 16:44:07 +00:00
Chris Lattner
cdece545dd New testcase for bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2626 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 16:40:43 +00:00
Chris Lattner
4ad532299a Run another local value numbering phase after redundancy elimination 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2625 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 16:23:14 +00:00
Chris Lattner
afc38686b4 Avoid emitting a useless comment for a basic block with no uses (which 
often happens for the entry basic block of a function)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2624 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 16:02:05 +00:00
Chris Lattner
b3bc8fa755 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-TouchDeletedInst.ll 
"This testcase caused instcombine to fail because it got the same instruction on
it's worklist more than once (which is ok), but then deleted the instruction.
Since the inst stayed on the worklist, as soon as it came back up to be
processed, bad things happened, and opt asserted."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2623 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 15:24:07 +00:00
Chris Lattner
0c131b6adf New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2622 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 15:22:50 +00:00
Chris Lattner
c99428f3c9 Fix a major source of "type unsafety", where a cast is neccesary, but can 
be put either before or after a load.  We chose to cast the value loaded
instead of the pointer to load from.

Fixes bug: test/Regression/Transforms/LevelRaise/2002-05-10-LoadPeephole.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2621 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 05:23:45 +00:00
Chris Lattner
18fb2a6682 Implement elimination of loads 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2620 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 05:02:40 +00:00
Chris Lattner
017489cfa2 Invoke inst has side effects! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2619 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 04:20:25 +00:00
Chris Lattner
82ac87cc21 New file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2618 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-13 22:19:50 +00:00
Chris Lattner
2172db04e7 Trivial cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2617 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-13 22:04:46 +00:00
Chris Lattner
ef704a23b4 Add method to check to see if two _Instructions_ dominate each other 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2616 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-13 22:03:16 +00:00
Chris Lattner
e0e734eea0 Initial checkin of LICM pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2615 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:44:58 +00:00
Chris Lattner
6cb9743eb8 expose LICM pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2614 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:44:37 +00:00
Chris Lattner
88fcc513aa Add LICM pass to compiler 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2613 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:44:31 +00:00
Chris Lattner
0fe2153507 Add prototype for LICM pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2612 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:44:16 +00:00
Chris Lattner
fe8f5b5ad7 Add testcase for when there is no loop header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2611 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:43:26 +00:00
Chris Lattner
8672a4eb8c A basic test that LICM is working 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2610 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:27:49 +00:00
Chris Lattner
ee583d621b Run LICM tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2609 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:21:38 +00:00
Chris Lattner
511cbbeba2 run LICM tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2608 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:21:25 +00:00
Chris Lattner
dd63a37c87 Make sure to call the derived visit versions from the ranged iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2607 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:21:05 +00:00
Chris Lattner
d6b60805e8 We actually need this code for the release build to prevent link errors, 
un#ifdef it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2606 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 18:54:35 +00:00
Chris Lattner
b498cce6b2 Add explicit abort so optimized build knows that the function does not return 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2605 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 18:53:55 +00:00
Chris Lattner
cba7a1545a Add an explicit abort so that the optimized build knows the function does 
not return.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2604 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 18:53:21 +00:00
Chris Lattner
18f4701b2b * Allow a profile'd code build to be done with a simple 'make ENABLE_PROFILING=1' 
* Only build tags for include, lib, and tools, not tests
* Turn on verbose output from bison to get information about shift/reduce
  conficts (why isn't this the default??)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2603 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 18:51:54 +00:00
Chris Lattner
e04f4b60c6 Expose the lowerallocs pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2602 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:43:07 +00:00
Chris Lattner
3dec1f2722 Add support for printing out statistics information when -stats is added to 
the command line


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2601 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:38:35 +00:00
Chris Lattner
55547274bc Fix some bugs, straighten stuff out, more work needs to be done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2600 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:37:35 +00:00
Chris Lattner
fa10fdf5eb Initial checkin of Statistic class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2599 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:36:56 +00:00
Chris Lattner
f3f4fd50f2 Initial checkin of Statistic class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2598 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:36:46 +00:00
Chris Lattner
3c0193742a * Add support for the -stats command line option to report how much is changed 
* Make cast-of-self-ty DCE the dead cast instruction immediately instead of
  waiting for it to be DCE'd by another sweep over the function.  This speeds
  this up noticably.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2597 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:29:25 +00:00
Chris Lattner
c79260af6e New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2596 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:14:54 +00:00
Chris Lattner
9f7fab5feb remove deprecated getInstType() method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2595 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 13:28:47 +00:00
Chris Lattner
2c0f3d23ae Expose the pi node insertion pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2594 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 05:41:49 +00:00
Chris Lattner
87fea85934 Initial checkin of the PiNodeInsertion pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2593 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 05:41:34 +00:00
Chris Lattner
531823f125 Add prototype for the PiNodeInserter pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2592 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 05:40:37 +00:00
Chris Lattner
38fc13149c Test the Pi node inserter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2591 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 05:38:39 +00:00
Chris Lattner
8832c1e853 Initial checkin of testcases for Pi node inserter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2590 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 05:38:18 +00:00
Chris Lattner
3af3ba8b38 Last minor cleanups, this code still does not work for all cases, but it 
works much better than it used to.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2588 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 21:31:18 +00:00
Chris Lattner
d0c668c380 Two Cleanups to generated C code: 
1. Avoid printing *(&globalvariable), instead print globalvariable alone
   as a special case.
2. Inline subexpressions into expressions as much as legal that preserves
   execution characteristics of expressions.  Now we get nice (but
   over-parenthesized, oh well) things like:

     ltmp_428_7 = spec__putc(((unsigned char )((bsBuff) >> 24)), (bsStream));

   instead of five seperate instructions (bsBuff & bsStream are globals).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2587 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 21:18:38 +00:00
Chris Lattner
4fbf26d2fc * Remove CInstPrintVisitor class, incorporating it into the CWriter class 
* Reorder code in the file to make it more logically laid out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2586 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:53:56 +00:00
Chris Lattner
497e19aee0 Remove CLocalVars data structure entirely, instead of building stuff and 
then printing it out, just print as we go.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2585 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:39:03 +00:00
Chris Lattner
7683a12e20 Simplify code by removing InstLocalVarsVisitor, replacing it with a simple 
inst_iterator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2584 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:33:35 +00:00
Chris Lattner
1f02c8910a * Clean up how PHI nodes are handled 
* Correct global variable references
* Fix loads & stores with zero indices
* Do not emit an else part of a branch if there is no code (no phi node
  and a fallthrough branch), makes code more readable to get:
  if (l2_cond240) {
    goto l13_bb10;
  }

with no else{} branch


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2583 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:14:10 +00:00
Chris Lattner
53a5b57737 Handle setcc <global*>, 0 instructions, Global pointers are never null! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2582 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:11:54 +00:00
Chris Lattner
0aa7cd605d Give the longer name to the instruction that will probably be eliminated later 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2581 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:11:23 +00:00
Chris Lattner
0097e41993 New testcase for wierd combine opportunity found in bzip2 benchmark 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2580 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 19:52:36 +00:00
Chris Lattner
8c8a37061a Emit: 
l3_reg109 = l81_this->field0;
Instead of:
  l3_reg109 = l81_this[0u].field0;

where possible


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2579 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 15:59:50 +00:00
Chris Lattner
8c3c4bfcfe * Print structures types correctly 
* Clean up generated code to not emit basic block labels and goto
  instructions if they are unneccesary (for example, fall throughs)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2578 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 15:49:41 +00:00