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14334 Commits

Author SHA1 Message Date
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
Evan Cheng
fb5e64ff9e Some clean up. 
llvm-svn: 28483
 2006-05-25 22:38:31 +00:00
Chris Lattner
5e1d6724da Add support for the missing FP condition codes 
llvm-svn: 28482
 2006-05-25 22:26:02 +00:00
Evan Cheng
ee280ac5d0 Remove some dead code. 
llvm-svn: 28481
 2006-05-25 22:25:52 +00:00
Evan Cheng
564c7ac8f6 X86 / Cygwin asm / alignment fixes. 
Patch contributed by Anton Korobeynikov!

llvm-svn: 28480
 2006-05-25 21:59:08 +00:00
Chris Lattner
d3eff919d8 Revert a patch that is unsafe, due to out of range array accesses in inner 
array scopes possibly accessing valid memory in outer subscripts.

llvm-svn: 28478
 2006-05-25 21:25:12 +00:00
Evan Cheng
abb909e3bb Build breakage. 
llvm-svn: 28475
 2006-05-25 18:56:34 +00:00
Chris Lattner
cbcad040b3 Fix build failure of povray 
llvm-svn: 28473
 2006-05-25 18:06:16 +00:00
Chris Lattner
e3059fb8bd Fix Benchmarks/MallocBench/cfrac 
llvm-svn: 28471
 2006-05-25 16:54:16 +00:00
Rafael Espindola
31b98f8e04 implement initial version of ARMAsmPrinter::printOperand 
llvm-svn: 28470
 2006-05-25 12:57:06 +00:00
Rafael Espindola
90eec6b0f7 port the ARM backend to use ISD::CALL instead of LowerCallTo 
llvm-svn: 28469
 2006-05-25 11:00:18 +00:00
Evan Cheng
6fdd4960aa Turn on -sched-commute-nodes by default. 
llvm-svn: 28465
 2006-05-25 08:37:31 +00:00
Evan Cheng
bb17ad5ffa Switch X86 over to a call-selection model where the lowering code creates 
the copyto/fromregs instead of making the X86ISD::CALL selection code create
them.

llvm-svn: 28463
 2006-05-25 00:59:30 +00:00
Evan Cheng
4a74dd0c51 CALL node change (arg / sign pairs instead of just arguments). 
llvm-svn: 28462
 2006-05-25 00:57:32 +00:00
Evan Cheng
920d9c86f1 CALL node change: now including signness of every argument. 
llvm-svn: 28461
 2006-05-25 00:55:32 +00:00
Evan Cheng
09942d3f8b Assert if InflightSet is not cleared after instruction selecting a BB. 
llvm-svn: 28459
 2006-05-25 00:24:28 +00:00
Evan Cheng
b040dd86af Clear HandleMap and ReplaceMap after instruction selection. Or it may cause 
non-deterministic behavior.

llvm-svn: 28454
 2006-05-24 20:46:25 +00:00
Reid Spencer
574d4e6992 For PR786: 
Minor tweaks in public headers and a few .cpp files so that LLVM can build
successfully with -pedantic and projects using LLVM with -pedantic don't
get warnings from LLVM. There's still more -pedantic warnings to fix.

llvm-svn: 28453
 2006-05-24 19:21:13 +00:00
Reid Spencer
e39b3b9bf0 For PR786: 
Remove a spurious ;

llvm-svn: 28452
 2006-05-24 19:05:21 +00:00
Chris Lattner
0b38bc2a99 Patch for a new instcombine xform, patch contributed by Nick Lewycky! 
This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll

llvm-svn: 28450
 2006-05-24 17:34:30 +00:00
Chris Lattner
f604017e47 Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447
 2006-05-24 17:04:05 +00:00
Chris Lattner
bc3be2ff8a Fix CodeGen/Generic/vector.ll:test_div with altivec. 
llvm-svn: 28445
 2006-05-24 00:15:25 +00:00
Chris Lattner
56862bbd53 Handle SETO* like we handle SET*, restoring behavior after Evan's setcc 
change.  This fixes PowerPC/fnegsel.ll.

llvm-svn: 28443
 2006-05-24 00:06:44 +00:00
Chris Lattner
2ce3eb8210 Print struct return functions and calls as actually returning the hidden 
argument struct pointer, enabling ABI compatibility for the CBE with
platforms with strange struct-return ABIs.  This fixes 252.eon and
CoyoteBench/fftbench on Darwin/X86 among other things.

llvm-svn: 28442
 2006-05-23 23:39:48 +00:00