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Commit Graph

9360 Commits

Author SHA1 Message Date
Chris Lattner
a29e319d54 implement Transforms/LoopStrengthReduce/invariant_value_first_arg.ll
llvm-svn: 20501
2005-03-06 22:06:22 +00:00
Chris Lattner
18fdd1e9f6 minor simplifications of the code.
llvm-svn: 20497
2005-03-06 21:58:22 +00:00
Chris Lattner
53c34a2147 trivial simplification
llvm-svn: 20494
2005-03-06 21:35:38 +00:00
Chris Lattner
b4e635cfc4 Fix a bug where we could corrupt a parent loop's header info if we unrolled
a nested loop.  This fixes Transforms/LoopUnroll/2005-03-06-BadLoopInfoUpdate.ll
and PR532

llvm-svn: 20493
2005-03-06 20:57:32 +00:00
Chris Lattner
46653269f4 rename insertEntry to insert
llvm-svn: 20484
2005-03-06 05:55:40 +00:00
Chris Lattner
b1ac7bc7f3 Merge SymbolTable::removeEntry into SymbolTable::remove, its only caller
llvm-svn: 20483
2005-03-06 05:51:09 +00:00
Chris Lattner
57a7a2d1cf Delete the really inefficient method: void remove(const Type* Typ);
Speed up the symbol stripping code by avoiding a linear search of the
type table.

Get rid of removeEntry(type_iterator), since 'remove' is exactly the same
operation.

llvm-svn: 20481
2005-03-06 05:46:41 +00:00
Chris Lattner
0ed850a944 Make this MUCH faster by avoiding a linear search in the symbol table code.
llvm-svn: 20479
2005-03-06 05:42:36 +00:00
Chris Lattner
f1d5e180ce Remove some really gross and hard to understand code now that
InternallyInconsistent is always false.

llvm-svn: 20477
2005-03-06 05:21:40 +00:00
Chris Lattner
4af779dcba Simplify some code.
llvm-svn: 20476
2005-03-06 05:13:42 +00:00
Chris Lattner
eb5987ee06 remove these methods.
llvm-svn: 20474
2005-03-06 02:37:47 +00:00
Chris Lattner
1343991e93 simplify and speed up some code
llvm-svn: 20472
2005-03-06 02:32:00 +00:00
Chris Lattner
a518cf568a simplify some code.
llvm-svn: 20471
2005-03-06 02:28:23 +00:00
Chris Lattner
ffa96dc848 This fixes PR531, a crash when running the CBE on a bytecode file.
The problem is that Function::renameLocalSymbols is iterating through
the symbol table planes, occasionally calling setName to rename a value
(which used to do a symbol table remove/insert pair).

The problem is that if there is only a single value in a particular type
plane that the remove will nuke the symbol table plane, and the insert
will create and insert a new one.  This hoses Function::renameLocalSymbols
because it has an iterator to the old plane, under the (very reasonable)
assumption that simply renaming a value won't cause the type plane to
disappear.

This patch fixes the bug by making the rename operation a single atomic
operation, which has a side effect of making the whole thing faster too. :)

llvm-svn: 20469
2005-03-06 02:14:28 +00:00
Jeff Cohen
db51926d4a Reformat comments to fix 80 columns.
llvm-svn: 20467
2005-03-05 22:45:40 +00:00
Jeff Cohen
023f10be12 Reuse induction variables created for strength-reduced GEPs by other similar GEPs.
llvm-svn: 20466
2005-03-05 22:40:34 +00:00
Chris Lattner
b177010d51 remove all of the various setName implementations, consolidating them into
Value::setName, which is no longer virtual.

llvm-svn: 20464
2005-03-05 19:51:50 +00:00
Chris Lattner
1ccff5c8c7 second argument to Value::setName is now gone.
llvm-svn: 20463
2005-03-05 19:05:20 +00:00
Chris Lattner
05e4fe5ef3 Make sure the two arguments of a setcc instruction point to the same node.
llvm-svn: 20462
2005-03-05 19:04:31 +00:00
Chris Lattner
70ffed029e zap
llvm-svn: 20461
2005-03-05 19:04:07 +00:00
Chris Lattner
80ba99a8f6 2nd arg to setName goes away.
llvm-svn: 20460
2005-03-05 19:02:15 +00:00
Chris Lattner
2bd3d67a8d Constants never get names.
llvm-svn: 20459
2005-03-05 19:01:59 +00:00
Chris Lattner
005a4a476a Remove the 2nd argument to Value::setName
llvm-svn: 20458
2005-03-05 19:01:49 +00:00
Chris Lattner
f70d80d026 don't break the build on 32-bit hosts.
llvm-svn: 20455
2005-03-05 17:47:38 +00:00
Andrew Lenharth
ee4072f980 fix data size stuff for architectures with bit challenged data types
llvm-svn: 20453
2005-03-05 15:30:33 +00:00
Chris Lattner
cadc85daa5 Do not compute 1ULL << 64, which is undefined. This fixes Ptrdist/ks on the
sparc, and testcase Regression/Transforms/InstCombine/2005-03-04-ShiftOverflow.ll

llvm-svn: 20445
2005-03-04 23:21:33 +00:00
Andrew Lenharth
ad4380f06e fix up stack pointer adjustments
llvm-svn: 20442
2005-03-04 21:40:02 +00:00
Chris Lattner
0864ad52d4 Trivial cleanup patch
llvm-svn: 20436
2005-03-04 20:27:46 +00:00
Andrew Lenharth
458e6bcf28 fix FCMOVxx typo, set rem and div to hardcode target reg to be the same as the one the assembler uese, update ISel to put values in regs used by assembler for rem and div
llvm-svn: 20434
2005-03-04 20:09:23 +00:00
Jeff Cohen
29ecafb2e3 Add support for not strength reducing GEPs where the element size is a small
power of two.  This emphatically includes the zeroeth power of two.

llvm-svn: 20429
2005-03-04 04:04:26 +00:00
Andrew Lenharth
e831777542 turn on IEEE for compares
llvm-svn: 20425
2005-03-03 22:12:11 +00:00
Andrew Lenharth
e6dbf989b3 beter Select on FP
llvm-svn: 20424
2005-03-03 21:47:53 +00:00
Chris Lattner
4439f1686f Print -X like this:
double test(double l1_X) {
  return (-l1_X);
}

instead of like this:

double test(double l1_X) {
  return (-0x0p+0 - l1_X);
}

llvm-svn: 20423
2005-03-03 21:12:04 +00:00
Andrew Lenharth
b5ddbc074d LSR cleanup patch
llvm-svn: 20422
2005-03-03 19:03:21 +00:00
Chris Lattner
8074739aa2 Do not lower malloc's to pass "sizeof" expressions like this:
ltmp_0_7 = malloc(((unsigned )(&(((signed char (*)[784])/*NULL*/0)[1u]))));

Instead, just emit the literal constant, like this:

  ltmp_0_7 = malloc(784u);

This works around a bug in ICC 8.1 compiling the CBE generated code.  :-(

llvm-svn: 20415
2005-03-03 01:04:50 +00:00
Chris Lattner
4814696e7d Add an optional argument to lower to a specific constant value instead of
to a "sizeof" expression.

llvm-svn: 20414
2005-03-03 01:03:43 +00:00
Misha Brukman
5b587350ee Fix the spelling of the word `the'
llvm-svn: 20412
2005-03-02 23:17:31 +00:00
Chris Lattner
f9597dc689 Print the module ID as a comment.
llvm-svn: 20411
2005-03-02 23:12:40 +00:00
Chris Lattner
b205d87afe cleanup the cfg after lsr
llvm-svn: 20410
2005-03-02 21:56:00 +00:00
Andrew Lenharth
1e213c7924 remove 32 sign extend after 32 sextload and handle small negative constant
llvm-svn: 20408
2005-03-02 17:23:03 +00:00
Andrew Lenharth
8fc5ba2e06 Added LSR as a beta pass for alpha
llvm-svn: 20407
2005-03-02 17:21:38 +00:00
Chris Lattner
798b18474c Add a temporary option for llc-beta: -enable-lsr-for-ppc, which turns on
Loop Strength Reduction.

llvm-svn: 20399
2005-03-02 06:19:22 +00:00
Reid Spencer
a5fbf1d659 Be slightly more accurate in an error message.
llvm-svn: 20397
2005-03-02 05:45:56 +00:00
Chris Lattner
0bb2828efb Fix a nasty order of evaluation bug that Gabor Greif ran into. Here's an
explanation from IRC:

	|sabre|	I think it's an order of evaluation thing
	|sabre|	for me, the RHS of the assignment is evaluated first
	|sabre|	getTypeDescription checks to see if ConcreteTypeDescription[Ty] contains anything
	|sabre|	since it doesn't, it computes and returns the value
	|sabre|	this gets put into the map.
	|sabre|	For you, the LHS is evaluated first.
	|sabre|	Map[Ty] (aka ConcreteTypeDescriptions[Ty]) inserts an empty string into the map, returning a reference
	|sabre|	getTypeDesc then sees the empty string in the map
	|sabre|	and returns it
	|sabre|	bork :)

llvm-svn: 20394
2005-03-02 03:54:43 +00:00
Jeff Cohen
6d82d5b23e Fixed the following LSR bugs:
* Loop invariant code does not dominate the loop header, but rather
    the end of the loop preheader.

  * The base for a reduced GEP isn't a constant unless all of its
    operands (preceding the induction variable) are constant.

  * Allow induction variable elimination for the simple case after all.

Also made changes recommended by Chris for properly deleting
instructions.

llvm-svn: 20383
2005-03-01 03:46:11 +00:00
Alkis Evlogimenos
422af394b6 Lower llvm.isunordered(a, b) into a != a | b != b.
llvm-svn: 20382
2005-03-01 02:07:58 +00:00
Chris Lattner
9d57998cda Remove tabs from file.
llvm-svn: 20380
2005-02-28 19:36:15 +00:00
Chris Lattner
b2720f5b57 Add support to the C backend for llvm.prefetch. Patch contributed by
Justin Wick!

llvm-svn: 20378
2005-02-28 19:29:46 +00:00
Chris Lattner
82480f68d7 recognize llvm.prefetch. Patch contributed by Justin Wick!
llvm-svn: 20377
2005-02-28 19:28:00 +00:00
Chris Lattner
c4205a6b93 Verify llvm.prefetch.
llvm-svn: 20376
2005-02-28 19:27:42 +00:00