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2491 Commits

Author SHA1 Message Date
Chris Lattner a64388a25f New testcase 
llvm-svn: 2628
 2002-05-14 19:56:14 +00:00
Chris Lattner 170ed7b6a3 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll 
llvm-svn: 2627
 2002-05-14 16:44:07 +00:00
Chris Lattner 86498988e0 New testcase for bug 
llvm-svn: 2626
 2002-05-14 16:40:43 +00:00
Chris Lattner c914944a61 Run another local value numbering phase after redundancy elimination 
llvm-svn: 2625
 2002-05-14 16:23:14 +00:00
Chris Lattner 408dbdb9ad Avoid emitting a useless comment for a basic block with no uses (which 
often happens for the entry basic block of a function)

llvm-svn: 2624
 2002-05-14 16:02:05 +00:00
Chris Lattner 053c0939e3 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."

llvm-svn: 2623
 2002-05-14 15:24:07 +00:00
Chris Lattner 9e36792753 New testcase 
llvm-svn: 2622
 2002-05-14 15:22:50 +00:00
Chris Lattner a3c3456e7f 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

llvm-svn: 2621
 2002-05-14 05:23:45 +00:00
Chris Lattner d38ddb1164 Implement elimination of loads 
llvm-svn: 2620
 2002-05-14 05:02:40 +00:00
Chris Lattner 3262f9406b Invoke inst has side effects! 
llvm-svn: 2619
 2002-05-14 04:20:25 +00:00
Chris Lattner e00d826c7a New file 
llvm-svn: 2618
 2002-05-13 22:19:50 +00:00
Chris Lattner 7ab51787ca Trivial cleanups 
llvm-svn: 2617
 2002-05-13 22:04:46 +00:00
Chris Lattner da6743e60c Add method to check to see if two _Instructions_ dominate each other 
llvm-svn: 2616
 2002-05-13 22:03:16 +00:00
Chris Lattner 6ec05f551c Initial checkin of LICM pass 
llvm-svn: 2615
 2002-05-10 22:44:58 +00:00
Chris Lattner 81525db280 expose LICM pass 
llvm-svn: 2614
 2002-05-10 22:44:37 +00:00
Chris Lattner 47d923c2e0 Add LICM pass to compiler 
llvm-svn: 2613
 2002-05-10 22:44:31 +00:00
Chris Lattner b9f60c24d9 Add prototype for LICM pass 
llvm-svn: 2612
 2002-05-10 22:44:16 +00:00
Chris Lattner 8d206636c2 Add testcase for when there is no loop header 
llvm-svn: 2611
 2002-05-10 22:43:26 +00:00
Chris Lattner ccab0fe417 A basic test that LICM is working 
llvm-svn: 2610
 2002-05-10 22:27:49 +00:00
Chris Lattner a31883eb2c Run LICM tests 
llvm-svn: 2609
 2002-05-10 22:21:38 +00:00
Chris Lattner 8e0ed6ea2c run LICM tests 
llvm-svn: 2608
 2002-05-10 22:21:25 +00:00
Chris Lattner d5696e7125 Make sure to call the derived visit versions from the ranged iterator. 
llvm-svn: 2607
 2002-05-10 22:21:05 +00:00
Chris Lattner e7ba5fb065 We actually need this code for the release build to prevent link errors, 
un#ifdef it.

llvm-svn: 2606
 2002-05-10 18:54:35 +00:00
Chris Lattner 94b4c5fe83 Add explicit abort so optimized build knows that the function does not return 
llvm-svn: 2605
 2002-05-10 18:53:55 +00:00
Chris Lattner e5bf51fc4f Add an explicit abort so that the optimized build knows the function does 
not return.

llvm-svn: 2604
 2002-05-10 18:53:21 +00:00
Chris Lattner 198d5eb1c4 * 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??)

llvm-svn: 2603
 2002-05-10 18:51:54 +00:00
Chris Lattner 6205c268e0 Expose the lowerallocs pass 
llvm-svn: 2602
 2002-05-10 15:43:07 +00:00
Chris Lattner 0b18c1d64e Add support for printing out statistics information when -stats is added to 
the command line

llvm-svn: 2601
 2002-05-10 15:38:35 +00:00
Chris Lattner bad1b4dfce Fix some bugs, straighten stuff out, more work needs to be done. 
llvm-svn: 2600
 2002-05-10 15:37:35 +00:00
Chris Lattner 529ad64148 Initial checkin of Statistic class 
llvm-svn: 2599
 2002-05-10 15:36:56 +00:00
Chris Lattner 9eb0052548 Initial checkin of Statistic class. 
llvm-svn: 2598
 2002-05-10 15:36:46 +00:00
Chris Lattner da2eddd5c4 * 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.

llvm-svn: 2597
 2002-05-10 15:29:25 +00:00
Chris Lattner 2d032846d0 New testcase 
llvm-svn: 2596
 2002-05-10 15:14:54 +00:00
Chris Lattner b621decdad remove deprecated getInstType() method 
llvm-svn: 2595
 2002-05-10 13:28:47 +00:00
Chris Lattner 35cc0d2027 Expose the pi node insertion pass. 
llvm-svn: 2594
 2002-05-10 05:41:49 +00:00
Chris Lattner 014ee634ce Initial checkin of the PiNodeInsertion pass 
llvm-svn: 2593
 2002-05-10 05:41:34 +00:00
Chris Lattner f3d6e41d29 Add prototype for the PiNodeInserter pass 
llvm-svn: 2592
 2002-05-10 05:40:37 +00:00
Chris Lattner 3b13b58ef0 Test the Pi node inserter 
llvm-svn: 2591
 2002-05-10 05:38:39 +00:00
Chris Lattner 6a4fa1c8b5 Initial checkin of testcases for Pi node inserter 
llvm-svn: 2590
 2002-05-10 05:38:18 +00:00
Chris Lattner e291226f02 Last minor cleanups, this code still does not work for all cases, but it 
works much better than it used to.

llvm-svn: 2588
 2002-05-09 21:31:18 +00:00
Chris Lattner d4c569c973 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).

llvm-svn: 2587
 2002-05-09 21:18:38 +00:00
Chris Lattner 5d190e2192 * Remove CInstPrintVisitor class, incorporating it into the CWriter class 
* Reorder code in the file to make it more logically laid out.

llvm-svn: 2586
 2002-05-09 20:53:56 +00:00
Chris Lattner 2051c06119 Remove CLocalVars data structure entirely, instead of building stuff and 
then printing it out, just print as we go.

llvm-svn: 2585
 2002-05-09 20:39:03 +00:00
Chris Lattner 5166d35e5d Simplify code by removing InstLocalVarsVisitor, replacing it with a simple 
inst_iterator.

llvm-svn: 2584
 2002-05-09 20:33:35 +00:00
Chris Lattner 30ad3a3238 * 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

llvm-svn: 2583
 2002-05-09 20:14:10 +00:00
Chris Lattner 1fc23f382e Handle setcc <global*>, 0 instructions, Global pointers are never null! 
llvm-svn: 2582
 2002-05-09 20:11:54 +00:00
Chris Lattner 6bd7ac6205 Give the longer name to the instruction that will probably be eliminated later 
llvm-svn: 2581
 2002-05-09 20:11:23 +00:00
Chris Lattner ce59a3d5f5 New testcase for wierd combine opportunity found in bzip2 benchmark 
llvm-svn: 2580
 2002-05-09 19:52:36 +00:00
Chris Lattner 48cd6330d7 Emit: 
l3_reg109 = l81_this->field0;
Instead of:
  l3_reg109 = l81_this[0u].field0;

where possible

llvm-svn: 2579
 2002-05-09 15:59:50 +00:00
Chris Lattner 4933e7e02d * 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)

llvm-svn: 2578
 2002-05-09 15:49:41 +00:00