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2629 Commits

Author SHA1 Message Date
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
Chris Lattner 132ba2a411 * Continue cleanup of type printing code 
* Print a newline after a malloc instruction
* Convert unprintable characters to x_ instead of _x so that we don't
  generate identifiers that start with underscores

llvm-svn: 2577
 2002-05-09 15:18:52 +00:00
Chris Lattner eed155e6a0 Gut the type printing code so there is only one copy of it instead of 3 
llvm-svn: 2576
 2002-05-09 14:40:11 +00:00
Chris Lattner c99a44eb25 * Remove dead "constant printing" code 
* Mangle names with only a prefix so that they are easier on the eyes.
* Put spaces around binary operators with low precedence to make them easier to read
* Don't prefix function names with &, although it's correct, it's unnecesary and
  easier to read without it.

llvm-svn: 2575
 2002-05-09 05:16:40 +00:00
Chris Lattner 1532dbfead Remove gross "Operand" instance variable 
Remove lots of unneccesary arguments to methods

llvm-svn: 2574
 2002-05-09 04:39:00 +00:00
Chris Lattner c897bddb17 Simplify and clean up function calls. 
Now indirect function calls work, except that function pointer types are not correct.

llvm-svn: 2573
 2002-05-09 04:21:21 +00:00
Chris Lattner 2fca988a57 * Remove dead function 
* Print C strings correctly
* Expand C escape sequences nicely (ie \n \t, etc get generated instead of hex escapes)

llvm-svn: 2572
 2002-05-09 03:56:52 +00:00
Chris Lattner af14c8d51f Make Getelementptr, load & store all work the right way. 
Handle global variables correctly.

llvm-svn: 2571
 2002-05-09 03:50:42 +00:00
Chris Lattner 7fbd831ce5 Many random fixes: 
* Use binary operator logic for shifts instead of cloning code
 * Unary not is '~' not '!'

llvm-svn: 2570
 2002-05-09 03:28:37 +00:00
Chris Lattner ec8243a8d4 Incorporate and purge function before and after printing them so unnamed values 
have some hope of working right.

Function calls do not try to emit an lvalue if they return void.

llvm-svn: 2569
 2002-05-09 03:12:34 +00:00
Chris Lattner 234ad49817 Factor out the code to print a value to ONE place. 
It turns out that unnamed values DO NOT work at all, that's next on the list.

llvm-svn: 2568
 2002-05-09 03:06:06 +00:00
Chris Lattner eabc647e7c First wave of cleanups, looks like the first of many. 
llvm-svn: 2567
 2002-05-09 02:28:59 +00:00
Chris Lattner ad3c495225 Add ability to transform (x - (y - z)) into (x + (z - y)) 
llvm-svn: 2566
 2002-05-09 01:29:19 +00:00