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14357 Commits

Author SHA1 Message Date
Owen Anderson
1a72d98dd2 Various clean-ups suggested by Chris. 
llvm-svn: 28678
 2006-06-04 00:02:23 +00:00
Owen Anderson
b83c3beb44 Fix a bug in Phi-noded insertion. Also, update some comments to reflect what's 
actually going on.

llvm-svn: 28677
 2006-06-03 23:22:50 +00:00
Evan Cheng
696779cea0 Cygwin support. Patch by Anton Korobeynikov! 
llvm-svn: 28672
 2006-06-02 22:38:37 +00:00
Evan Cheng
ddb0525a32 Use xor to clear a register. 
llvm-svn: 28667
 2006-06-02 21:20:34 +00:00
Evan Cheng
ed96100b00 Incorrect AT&T opcode. 
llvm-svn: 28666
 2006-06-02 21:09:10 +00:00
Chris Lattner
6cca762d5f Remove unneeded hook. Patch by Anton K. Thanks! 
llvm-svn: 28664
 2006-06-02 19:11:46 +00:00
Chris Lattner
d14d882c4a Add mingw support, patch contributed by Anton 
llvm-svn: 28661
 2006-06-02 18:54:01 +00:00
Chris Lattner
0f5ef733cc Force anything that #includes llvm/Transforms/Utils/UnifyFunctionExitNodes.h 
to link in the implementation.  Thanks to Anton Korobeynikov for figuring out
what was going on here.

llvm-svn: 28660
 2006-06-02 18:40:06 +00:00
Chris Lattner
5cba9093c8 Fix build on systems with bad bison's 
llvm-svn: 28657
 2006-06-02 18:20:28 +00:00
Chris Lattner
3300df2fb9 Remove dead #include 
llvm-svn: 28642
 2006-06-01 20:02:28 +00:00
Chris Lattner
93c46b83b6 Make the "pruning cloner" smarter. As it propagates constants through the 
code (while cloning) it often gets the branch/switch instructions.  Since it
knows that edges of the CFG are dead, it need not clone (or even look) at
the obviously dead blocks.  This should speed up the inliner substantially on
code where there are lots of inlinable calls to functions with constant
arguments.  On C++ code in particular, this kicks in.

llvm-svn: 28641
 2006-06-01 19:19:23 +00:00
Chris Lattner
609f7e070d Fix linking of inline asm objects. 
llvm-svn: 28640
 2006-06-01 19:14:22 +00:00
Reid Spencer
b41365509f Provide configuration support and usage for MINGW32 platform 
llvm-svn: 28639
 2006-06-01 19:03:21 +00:00
Chris Lattner
6838320f46 Fix -pedantic warnings. 
llvm-svn: 28636
 2006-06-01 17:29:22 +00:00
Chris Lattner
50af98a5f2 Fix -pedantic warnings 
llvm-svn: 28635
 2006-06-01 17:27:11 +00:00
Chris Lattner
3d631893f9 Fix -pedantic warning 
llvm-svn: 28634
 2006-06-01 17:17:46 +00:00
Chris Lattner
1d2618c6c7 Silence -pedantic warning 
llvm-svn: 28633
 2006-06-01 17:17:06 +00:00
Chris Lattner
339d8b5ba9 Silence a -pedantic warning. 
llvm-svn: 28632
 2006-06-01 17:16:21 +00:00
Chris Lattner
ac3d91f023 Silence -pedantic warning. 
llvm-svn: 28630
 2006-06-01 17:13:10 +00:00
Chris Lattner
cba966934e Silence some -pedantic warnings. 
llvm-svn: 28629
 2006-06-01 17:12:14 +00:00
Reid Spencer
2c6d390a60 Change from using a stub function to a stub variable for passing to the 
IncludeFile hack to ensure linkage of analysis passes. This works around
some -pedantic warnings about assigning an object to a function.

llvm-svn: 28621
 2006-06-01 07:02:51 +00:00
Reid Spencer
490c23de9b Prevent the -pedantic option from causing Mac OS/X build problems: 
LiveIntervalAnalysis.cpp:218: error: floating constant exceeds range of 'double'

llvm-svn: 28620
 2006-06-01 06:12:21 +00:00
Owen Anderson
1b0cd45469 Remove a FIXME that was fixed with my last patch. 
llvm-svn: 28619
 2006-06-01 06:07:40 +00:00
Owen Anderson
facd63d07c More cleanups. Also, add a special case for updating PHI nodes, and 
reimplement getValueDominatingFunction to walk the DominanceTree rather than
just searching blindly.

llvm-svn: 28618
 2006-06-01 06:05:47 +00:00
Evan Cheng
4966cad9b5 Typos 
llvm-svn: 28617
 2006-06-01 05:53:27 +00:00
Reid Spencer
4b26f88ec9 For PR786: 
Don't warn about -pedantic errors. Add a note to the PR instead.

llvm-svn: 28616
 2006-06-01 05:49:51 +00:00
Reid Spencer
cf025eb201 For PR786: 
Turn -pedantic and -Wno-long-long compile flags on by default. In a few
places, avoid the warnings by removing these options in the local makefile.
One notable exception: lib/Target/CBackend/Writer.cpp. These warnings are
left on as a reminder to developers to clean them up.

llvm-svn: 28614
 2006-06-01 01:55:21 +00:00
Reid Spencer
94a443bb29 Use archive libraries instead of object files for VMCore, BCReader, 
BCWriter, and bzip2 libraries. Adjust the various makefiles to accommodate
these changes. This was done to speed up link times.

llvm-svn: 28610
 2006-06-01 01:30:27 +00:00
Evan Cheng
15c1f84762 Remove a warning 
llvm-svn: 28607
 2006-06-01 00:30:39 +00:00
Evan Cheng
4488266c46 Rename ASM modifier trunc8, trunc16 to subreg8, subreg16. 
llvm-svn: 28606
 2006-05-31 22:34:26 +00:00
Reid Spencer
30d5eade2a Fix casting so there's no warning on Alpha. 
llvm-svn: 28605
 2006-05-31 22:26:11 +00:00
Evan Cheng
f90443c471 Sign extender 
llvm-svn: 28603
 2006-05-31 22:05:11 +00:00
Reid Spencer
3a6304d4e8 Squelch this warning: 
/bzlib.c:126: warning: string length `1056' is greater than the length `509' ISO
C89 compilers are required to support

llvm-svn: 28602
 2006-05-31 21:53:42 +00:00
Chris Lattner
36f99c7c1d Swap the order of operands created here. For +&|^, the order doesn't matter, 
but for sub, it really does!  Fix fixes a miscompilation of fibheap_cut in
llvmgcc4.

llvm-svn: 28600
 2006-05-31 21:14:00 +00:00
Owen Anderson
aae280d83c Extract a huge loop into a helper method. Fix a few iterator-invalidation bugs. 
llvm-svn: 28599
 2006-05-31 20:55:06 +00:00
Evan Cheng
889544823a Rename instructions for consistency sake. 
llvm-svn: 28594
 2006-05-31 19:00:07 +00:00
Evan Cheng
5b6029f577 commuteInstruction() does not always create a new MI! 
llvm-svn: 28592
 2006-05-31 18:03:39 +00:00
Reid Spencer
2d7af150ca Make the getNamedFunction and getNamedGlobal methods be const. They don't 
change the module in any way and we should enforce that.

llvm-svn: 28588
 2006-05-31 16:40:28 +00:00
Evan Cheng
6a09baaff4 Eliminate a memory leak. 
llvm-svn: 28585
 2006-05-31 07:13:03 +00:00
Evan Cheng
bbc183c90e visitVBinOp: Can't fold divide by zero! 
llvm-svn: 28584
 2006-05-31 06:08:35 +00:00
Evan Cheng
abbbe57ba2 Select vector_shuffle v1, undef <2, 3, ?, ?> to MOVHLPS. 
llvm-svn: 28582
 2006-05-31 00:51:37 +00:00
Evan Cheng
82db95cd32 Remove dead code. 
llvm-svn: 28581
 2006-05-31 00:50:42 +00:00
Evan Cheng
8dc7251083 A new entry 
llvm-svn: 28579
 2006-05-30 23:56:31 +00:00
Evan Cheng
c024ad7f32 MAXP{D|S} and MINP{D|S} are commutable. 
llvm-svn: 28578
 2006-05-30 23:47:30 +00:00
Evan Cheng
e2397256c1 Commute shufps / shufpd. 
llvm-svn: 28577
 2006-05-30 23:34:30 +00:00
Evan Cheng
88bd79b75b Somehow I lost a condition when I was shuffling some code around. Anyway, 
only transform a shufps to pshufd when the first two operands are the same.

llvm-svn: 28575
 2006-05-30 22:13:36 +00:00
Evan Cheng
bdb6af8e7d Fix a build breaker. 
llvm-svn: 28574
 2006-05-30 21:45:53 +00:00
Evan Cheng
66bfb1dc9a Oops. PSHUFD is only available with SSE2. 
llvm-svn: 28573
 2006-05-30 21:30:59 +00:00
Chris Lattner
a5c50baaf5 Add a note 
llvm-svn: 28572
 2006-05-30 21:29:15 +00:00
Chris Lattner
31b150e334 Always reserve space for 8 spilled GPRs. GCC apparently assumes that this 
space will be available, even if the callee isn't varargs.

llvm-svn: 28571
 2006-05-30 21:21:04 +00:00
Evan Cheng
03ca651244 Allow shufps x, x, mask to be converted to pshufd x, mask to save a move. 
llvm-svn: 28565
 2006-05-30 20:26:50 +00:00
Evan Cheng
d7e0bab7f0 Remove bogus comment. 
llvm-svn: 28564
 2006-05-30 20:24:48 +00:00
Reid Spencer
1e1cfbb6fe Provide a simpler interface for getting a ConstantArray from a character 
string. Instead of specifying the length, just specify whether the user
wants a terminating null or not. The default is "true" to retain the same
behavior as previously provided by this function.

llvm-svn: 28562
 2006-05-30 18:15:07 +00:00
Evan Cheng
ae1c91ec10 Make sure the register pressure reduction schedulers work for non-uniform 
latency targets, e.g. PPC32.

llvm-svn: 28561
 2006-05-30 18:05:39 +00:00
Evan Cheng
7e0c2d106e When a priority_queue is empty, the behavior of top() operator is 
non-deterministic. Returns NULL when it's empty!

llvm-svn: 28560
 2006-05-30 18:04:34 +00:00
Rafael Espindola
1bf57da16e Expand ret into "CopyToReg;BRIND" 
llvm-svn: 28559
 2006-05-30 17:33:19 +00:00
Reid Spencer
9159a7e937 Undo a patch that breaks llvm-as because the warning message is written to 
stdout when the output of llvm-as is also written to stdout. We'll have to
fix tcl some other way.

llvm-svn: 28557
 2006-05-30 16:34:59 +00:00
Reid Spencer
0ce0aa6544 Write the WARNING message to cout instead of cerr. Writing to cerr causes 
Tcl to claim that the program had an error and thus produces errors in
the dejagnu testing when its really just a warning.

llvm-svn: 28556
 2006-05-30 16:05:59 +00:00
Reid Spencer
ce05d51e82 Adjust the interface to ConstantArray::get. The previous 
implementation always added a null byte to the end of the string. It turns
out that this is not always wanted. By adding a length parameter we preserve
this behavior when length==0 (default value) but also allow other lengths
(not null terminated) to be created.

llvm-svn: 28552
 2006-05-30 08:23:18 +00:00
Evan Cheng
ced05ab1b4 Add a note about integer multiplication by constants. 
llvm-svn: 28551
 2006-05-30 07:37:37 +00:00
Evan Cheng
f7637e403f A addressing mode folding enhancement: 
Fold c2 in (x << c1) | c2 where (c2 < c1)
e.g.
int test(int x) {
  return (x << 3) + 7;
}

This can be codegen'd as:
leal 7(,%eax,8), %eax

llvm-svn: 28550
 2006-05-30 06:59:36 +00:00
Evan Cheng
1891844780 Some new entries about truncate / anyext 
llvm-svn: 28548
 2006-05-30 06:23:50 +00:00
Andrew Lenharth
ec5b37953c move calltarget to dsa 
llvm-svn: 28546
 2006-05-29 23:39:48 +00:00
Andrew Lenharth
bc04a6c143 Since there was interest on the mailing list, this is a utility pass that 
uses DSA to make find targets of calls.  It provides a very convinient
interface to DSA results to do things with indirect calls, such as
write a devirtualizer (which I have and may commit one of these days).

llvm-svn: 28545
 2006-05-29 22:58:38 +00:00
Vladimir Prus
08c8b74864 Reset DEBUG_SYMBOL_TABLE back to 0. 
llvm-svn: 28538
 2006-05-29 12:54:52 +00:00
Vladimir Prus
8a3a4fb0ba Fix compile error when DEBUG_SYMBOL_TABLE is defined. 
llvm-svn: 28537
 2006-05-29 12:45:15 +00:00
Reid Spencer
ac33b75511 Fix grammar in a comment. 
llvm-svn: 28534
 2006-05-29 02:34:34 +00:00
Owen Anderson
d46a77c3c8 Add Use replacement. Assuming there is nothing horribly wrong with this, LCSSA 
is now theoretically feature-complete.  It has not, however, been thoroughly
test, and is still considered experimental.

llvm-svn: 28529
 2006-05-29 01:00:00 +00:00
Owen Anderson
a857559867 Major think-o. Iterate over all live out-of-loop values, and perform the 
other calculations on each individually, rather than trying to delay it and do
them all at the end.

llvm-svn: 28527
 2006-05-28 19:33:28 +00:00
Owen Anderson
703f6baab0 Make LCSSA insert proper Phi nodes throughout the rest of the CFG by computing 
the iterated Dominance Frontier of the loop-closure Phi's.  This is the
second phase of the LCSSA pass.  The third phase (coming soon) will be to
update all uses of loop variables to use the loop-closure Phi's instead.

llvm-svn: 28524
 2006-05-27 18:47:11 +00:00
Chris Lattner
0189e09b89 Fix some regression from the inliner patch I committed last night. This fixes 
ldecod, lencod, and SPASS.

llvm-svn: 28523
 2006-05-27 17:28:13 +00:00
Chris Lattner
04d52ee9a2 Switch the inliner over to using CloneAndPruneFunctionInto. This effectively 
makes it so that it constant folds instructions on the fly.  This is good
for several reasons:

0. Many instructions are constant foldable after inlining, particularly if
   inlining a call with constant arguments.
1. Without this, the inliner has to allocate memory for all of the instructions
   that can be constant folded, then a subsequent pass has to delete them.  This
   gets the job done without this extra work.
2. This makes the inliner *pass* a bit more aggressive: in particular, it
   partially solves a phase order issue where the inliner would inline lots
   of code that folds away to nothing, but think that the resultant function
   is big because of this code that will be gone.  Now the code never exists.

This is the first part of a 2-step process.  The second part will be smart
enough to see when this implicit constant folding propagates a constant into
a branch or switch instruction, making CFG edges dead.

This implements Transforms/Inline/inline_constprop.ll

llvm-svn: 28521
 2006-05-27 01:28:04 +00:00
Chris Lattner
e1552475d3 Ignore generated files 
llvm-svn: 28520
 2006-05-27 01:23:30 +00:00
Chris Lattner
12c9d54f79 Implement a new method, CloneAndPruneFunctionInto, as documented. 
llvm-svn: 28519
 2006-05-27 01:22:24 +00:00
Chris Lattner
1835cfb302 Refactor some code to expose an interface to constant fold and instruction given it's opcode, typeand operands. 
llvm-svn: 28517
 2006-05-27 01:18:04 +00:00
Chris Lattner
d8bd52bfd2 Fix a nasty dag combiner bug that caused nondeterminstic crashes (MY FAVORITE!): 
SimplifySelectOps would eliminate a Select, delete it, then return true.

The clients would see that it did something and return null.

The top level would see a null return, and decide that nothing happened,
proceeding to process the node in other ways: boom.

The fix is simple: clients of SimplifySelectOps should return the select
node itself.

In order to catch really obnoxious boogs like this in the future, add an
assert that nodes are not deleted.  We do this by checking for a sentry node
type that the SDNode dtor sets when a node is destroyed.

llvm-svn: 28514
 2006-05-27 00:43:02 +00:00
Owen Anderson
1843c1ee17 A few small clean-ups, and the addition of an LCSSA statistic. 
llvm-svn: 28512
 2006-05-27 00:31:37 +00:00
Evan Cheng
58bfb4e600 Make CALL node consistent with RET node. Signness of value has type MVT::i32 
instead of MVT::i1. Either is fine except MVT::i32 is probably a legal type
for most (if not all) platforms while MVT::i1 is not.

llvm-svn: 28511
 2006-05-26 23:13:20 +00:00
Evan Cheng
de0f25081a Change RET node to include signness information of the return values. i.e. 
RET chain, value1, sign1, value2, sign2, ...

llvm-svn: 28510
 2006-05-26 23:10:12 +00:00
Evan Cheng
f53c4cc192 Change RET node to include signness information of the return values. e.g. 
RET chain, value1, sign1, value2, sign2

llvm-svn: 28509
 2006-05-26 23:09:09 +00:00
Owen Anderson
d706fc78b2 Fix a copy-and-paste-o that would break some compilers. 
llvm-svn: 28507
 2006-05-26 21:19:17 +00:00
Owen Anderson
2414055ac6 Clean up and refactor LCSSA a bunch. It should also run faster now, though 
there's still a lot of work to be done on it.

llvm-svn: 28506
 2006-05-26 21:11:53 +00:00
Evan Cheng
25db1a52d2 Vector argument must be passed in memory location aligned on 16-byte boundary. 
llvm-svn: 28505
 2006-05-26 20:37:47 +00:00
Evan Cheng
7f468901bb Mac OS X ABI document lied. The first four XMM registers are used to pass 
vector arguments, not three.

llvm-svn: 28504
 2006-05-26 19:22:06 +00:00
Chris Lattner
0043931185 Implement Transforms/InstCombine/store.ll:test2. 
llvm-svn: 28503
 2006-05-26 19:19:20 +00:00
Chris Lattner
e3222507ee Fix a bug in the bc reader/writer: we were not correctly encoding varargs 
nonccc calls (we were dropping the CC and tail flag).  This broke several
FORTRAN programs.

Testcase here: Regression/Assembler/2006-05-26-VarargsCallEncode.ll

llvm-svn: 28501
 2006-05-26 18:42:34 +00:00
Evan Cheng
629df0afb2 Minor update to make the code more clear 
llvm-svn: 28499
 2006-05-26 18:39:59 +00:00
Evan Cheng
bde90b2732 Update more comments. 
llvm-svn: 28498
 2006-05-26 18:37:16 +00:00
Evan Cheng
414c909954 Fix some comments. 
llvm-svn: 28497
 2006-05-26 18:25:43 +00:00
Evan Cheng
a4b6f4749d No need to handle illegal types. 
llvm-svn: 28496
 2006-05-26 18:22:49 +00:00
Owen Anderson
93098cfc4c Skeletal LCSSA pass. This is currently non-functional. Expect functionality 
and documentation updates soo.

llvm-svn: 28495
 2006-05-26 13:58:26 +00:00
Rafael Espindola
f7c5af4863 On ARM, alignment is in bits 
Add lr as a hard coded operand of bx

llvm-svn: 28494
 2006-05-26 10:56:17 +00:00
Evan Cheng
c80154a36e Remove a couple of bogus casts. 
llvm-svn: 28493
 2006-05-26 08:04:31 +00:00
Evan Cheng
328b47bc28 Remove a bogus cast. 
llvm-svn: 28492
 2006-05-26 08:00:14 +00:00
Evan Cheng
77b8eaf292 Minor bug caught by Ashwin Chandra 
llvm-svn: 28491
 2006-05-26 06:22:34 +00:00
Chris Lattner
c6c2770e08 Transform things like (splat(splat)) -> splat 
llvm-svn: 28490
 2006-05-26 00:29:06 +00:00
Chris Lattner
261299e3f5 Introduce a helper function that simplifies interpretation of shuffle masks. 
No functionality change.

llvm-svn: 28489
 2006-05-25 23:48:38 +00:00
Evan Cheng
f610c3e318 Consistency 
llvm-svn: 28488
 2006-05-25 23:31:23 +00:00
Chris Lattner
c678c720a7 Turn (cast (shuffle (cast)) -> shuffle (cast) if it reduces the # casts in 
the program.  This exposes more opportunities for the instcombiner, and implements
vec_shuffle.ll:test6

llvm-svn: 28487
 2006-05-25 23:24:33 +00:00
Chris Lattner
5df88a112b extract element from a shuffle vector can be trivially turned into an 
extractelement from the SV's source.  This implement vec_shuffle.ll:test[45]

llvm-svn: 28485
 2006-05-25 22:53:38 +00:00