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Author SHA1 Message Date
Reid Spencer
97be29a3b4 Fix a problem where dejagnu won't accept the value of global tcl variable 
"libdir" for some reason. Changing to llvmlibsdir instead fixes it.

llvm-svn: 28526
 2006-05-28 07:22:42 +00:00
Reid Spencer
30094a399d Provide an infrastructure for testing the llvm2cpp program (yet to be 
committed). This infrastructure is only activated when RUNLLVM2CPP=1 is
specified on the make command line. Currently it is only supported in the
Feature test suite.

llvm-svn: 28525
 2006-05-28 04:21:40 +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
0f467023c2 Fix pastos in comments 
llvm-svn: 28522
 2006-05-27 06:57:55 +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
fcb019fcb6 Implement a new method: CloneAndPruneFunctionInto, as documented. 
llvm-svn: 28518
 2006-05-27 01:21:50 +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
c8b9439f3a Add an interface to constant fold and instruction given it's opcode, type 
and operands.

llvm-svn: 28516
 2006-05-27 01:17:40 +00:00
Chris Lattner
2a1f1bb6d5 New testcase: check that the inliner constant folds instructions on the 
fly if it can.

llvm-svn: 28515
 2006-05-27 01:16:22 +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
Chris Lattner
990b00b325 Add a new sentry node type, allowing assertions to catch trivial 
use-after-deleted errors.

llvm-svn: 28513
 2006-05-27 00:40:15 +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
4e6d8eb367 Trivial testcase that LCSSA can already handle. 
llvm-svn: 28508
 2006-05-26 21:59:20 +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
80f83ad994 New testcase for trivial DSE 
llvm-svn: 28502
 2006-05-26 19:18:40 +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
Chris Lattner
4f0be93f9b New testcase, check that the bc file correctly encodes varargs nonccc calls. 
llvm-svn: 28500
 2006-05-26 18:41:26 +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
d5dcb39d9f new testcase 
llvm-svn: 28486
 2006-05-25 23:23:22 +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
Chris Lattner
3bbd20f754 new testcases 
llvm-svn: 28484
 2006-05-25 22:52:49 +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
24762cd819 The patch corresponding to this test had to be reverted as unsafe. 
llvm-svn: 28479
 2006-05-25 21:25:54 +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
227c09e7d2 New test case. x86 isel was creating a cycle in the DAG. 
llvm-svn: 28477
 2006-05-25 20:21:19 +00:00