Chris Lattner
f7333e31a1
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
0ee0c26f4e
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
6a7eccad5f
New testcase
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llvm-svn: 2622
2002-05-14 15:22:50 +00:00
Chris Lattner
f98fefc1ea
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
b7688286c1
Implement elimination of loads
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llvm-svn: 2620
2002-05-14 05:02:40 +00:00
Chris Lattner
9d013ca535
Invoke inst has side effects!
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llvm-svn: 2619
2002-05-14 04:20:25 +00:00
Chris Lattner
e14cba5c34
New file
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llvm-svn: 2618
2002-05-13 22:19:50 +00:00
Chris Lattner
fc14cb90a2
Trivial cleanups
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llvm-svn: 2617
2002-05-13 22:04:46 +00:00
Chris Lattner
2735171cf5
Add method to check to see if two _Instructions_ dominate each other
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llvm-svn: 2616
2002-05-13 22:03:16 +00:00
Chris Lattner
1b769f2a94
Initial checkin of LICM pass
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llvm-svn: 2615
2002-05-10 22:44:58 +00:00
Chris Lattner
b04d5ecc11
expose LICM pass
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llvm-svn: 2614
2002-05-10 22:44:37 +00:00
Chris Lattner
97b501879c
Add LICM pass to compiler
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llvm-svn: 2613
2002-05-10 22:44:31 +00:00
Chris Lattner
5a85ea20e5
Add prototype for LICM pass
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llvm-svn: 2612
2002-05-10 22:44:16 +00:00
Chris Lattner
1e198023b9
Add testcase for when there is no loop header
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llvm-svn: 2611
2002-05-10 22:43:26 +00:00
Chris Lattner
717e99c79a
A basic test that LICM is working
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llvm-svn: 2610
2002-05-10 22:27:49 +00:00
Chris Lattner
c2766aada8
Run LICM tests
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llvm-svn: 2609
2002-05-10 22:21:38 +00:00
Chris Lattner
1215378a67
run LICM tests
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llvm-svn: 2608
2002-05-10 22:21:25 +00:00
Chris Lattner
708b869951
Make sure to call the derived visit versions from the ranged iterator.
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llvm-svn: 2607
2002-05-10 22:21:05 +00:00
Chris Lattner
590bcc9629
We actually need this code for the release build to prevent link errors,
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un#ifdef it.
llvm-svn: 2606
2002-05-10 18:54:35 +00:00
Chris Lattner
ff9f677248
Add explicit abort so optimized build knows that the function does not return
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llvm-svn: 2605
2002-05-10 18:53:55 +00:00
Chris Lattner
625396c63a
Add an explicit abort so that the optimized build knows the function does
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not return.
llvm-svn: 2604
2002-05-10 18:53:21 +00:00
Chris Lattner
b9e591a7b5
* 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
24656ee8e4
Expose the lowerallocs pass
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llvm-svn: 2602
2002-05-10 15:43:07 +00:00
Chris Lattner
adba963886
Add support for printing out statistics information when -stats is added to
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the command line
llvm-svn: 2601
2002-05-10 15:38:35 +00:00
Chris Lattner
1bf8912c74
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
a9e4b660ff
Initial checkin of Statistic class
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llvm-svn: 2599
2002-05-10 15:36:56 +00:00
Chris Lattner
8c131ef721
Initial checkin of Statistic class.
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llvm-svn: 2598
2002-05-10 15:36:46 +00:00
Chris Lattner
0671b3db5d
* 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
d9e5159118
New testcase
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llvm-svn: 2596
2002-05-10 15:14:54 +00:00
Chris Lattner
ca6c5955f4
remove deprecated getInstType() method
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llvm-svn: 2595
2002-05-10 13:28:47 +00:00
Chris Lattner
25ae3ddf64
Expose the pi node insertion pass.
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llvm-svn: 2594
2002-05-10 05:41:49 +00:00
Chris Lattner
2d91be1ab7
Initial checkin of the PiNodeInsertion pass
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llvm-svn: 2593
2002-05-10 05:41:34 +00:00
Chris Lattner
93ba8ba0a9
Add prototype for the PiNodeInserter pass
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llvm-svn: 2592
2002-05-10 05:40:37 +00:00
Chris Lattner
5295e03aa9
Test the Pi node inserter
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llvm-svn: 2591
2002-05-10 05:38:39 +00:00
Chris Lattner
bfc208b405
Initial checkin of testcases for Pi node inserter
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llvm-svn: 2590
2002-05-10 05:38:18 +00:00
Chris Lattner
a98304f4fa
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
4ece8deba5
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
9a9b801669
* Remove CInstPrintVisitor class, incorporating it into the CWriter class
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* 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
3fd3c03371
Remove CLocalVars data structure entirely, instead of building stuff and
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then printing it out, just print as we go.
llvm-svn: 2585
2002-05-09 20:39:03 +00:00
Chris Lattner
5ed180c1bd
Simplify code by removing InstLocalVarsVisitor, replacing it with a simple
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inst_iterator.
llvm-svn: 2584
2002-05-09 20:33:35 +00:00
Chris Lattner
aa1d35be51
* Clean up how PHI nodes are handled
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* 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
cd326f096f
Handle setcc <global*>, 0 instructions, Global pointers are never null!
...
llvm-svn: 2582
2002-05-09 20:11:54 +00:00
Chris Lattner
9de1aeb91c
Give the longer name to the instruction that will probably be eliminated later
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llvm-svn: 2581
2002-05-09 20:11:23 +00:00
Chris Lattner
160b51de7d
New testcase for wierd combine opportunity found in bzip2 benchmark
...
llvm-svn: 2580
2002-05-09 19:52:36 +00:00
Chris Lattner
94e4578db4
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
97ae8c039e
* Print structures types correctly
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* 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
93fb65370c
* Continue cleanup of type printing code
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* 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
b3acea93cf
Gut the type printing code so there is only one copy of it instead of 3
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llvm-svn: 2576
2002-05-09 14:40:11 +00:00
Chris Lattner
619c55baec
* 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
cde698978f
Remove gross "Operand" instance variable
...
Remove lots of unneccesary arguments to methods
llvm-svn: 2574
2002-05-09 04:39:00 +00:00