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Author SHA1 Message Date
Chris Lattner
746b4b7f2a remove condprop testcases. 
llvm-svn: 86804
 2009-11-11 05:25:16 +00:00
Daniel Dunbar
da387a1c25 Add StringRef::split(StringRef), to complement StringRef::split(char). 
llvm-svn: 86803
 2009-11-11 05:19:11 +00:00
Rafael Espindola
cea17df39c Remove dead code. 
llvm-svn: 86802
 2009-11-11 04:10:24 +00:00
Sandeep Patel
a167903217 Show command-line args and features passed into backend in debug output. Approved by Evan Cheng. 
llvm-svn: 86797
 2009-11-11 03:23:46 +00:00
Daniel Dunbar
def4580a85 Add missing run line. Devang, please check. 
llvm-svn: 86795
 2009-11-11 03:10:03 +00:00
Daniel Dunbar
d29c05945a Fix -Asserts warning. 
llvm-svn: 86794
 2009-11-11 03:09:50 +00:00
Jim Grosbach
d7aab5323b The TBB and TBH instructions for Thumb2 are really handy for jump tables, but 
can only branch forward. To best take advantage of them, we'd like to adjust
the basic blocks around a bit when reasonable. This patch puts basics in place
to do that, with a super-simple algorithm for backwards jump table targets that
creates a new branch after the jump table which branches backwards. Real
heuristics for reordering blocks or other modifications rather than inserting
branches will follow.

llvm-svn: 86791
 2009-11-11 02:47:19 +00:00
Chris Lattner
b45381c3f0 stub out some LazyValueInfo interfaces, and have JumpThreading 
start using them in a trivial way when -enable-jump-threading-lvi
is passed.  enable-jump-threading-lvi will be my playground for 
awhile.

llvm-svn: 86789
 2009-11-11 02:08:33 +00:00
Bill Wendling
a6d7a411d3 Fix test to work on every platform. 
llvm-svn: 86786
 2009-11-11 01:44:22 +00:00
Bill Wendling
8718dfbbaa Fix test to work on every platform. 
llvm-svn: 86785
 2009-11-11 01:41:32 +00:00
Devang Patel
496147ef73 XFAIL for now. 
llvm-svn: 86784
 2009-11-11 01:41:10 +00:00
Bill Wendling
33ab3cd1bc Make sure that the exception handling data has the same visibility as the 
function it's generated for.

llvm-svn: 86779
 2009-11-11 01:24:59 +00:00
Daniel Dunbar
aa5d256b19 Add Triple::str() which returns the contents of the Triple as a string, as a more readable alternative to getTriple(). 
llvm-svn: 86773
 2009-11-11 00:43:14 +00:00
Devang Patel
b3f18462ca Do not assume first function scope seen represents current function. 
llvm-svn: 86771
 2009-11-11 00:31:36 +00:00
Daniel Dunbar
16a5387db2 Add From arguments to StringRef search functions, and tweak doxyments. 
Also, add unittests for find_first_of and find_first_not_of.

llvm-svn: 86770
 2009-11-11 00:28:53 +00:00
Daniel Dunbar
9789af1797 llvm-gcc/clang don't (won't?) need this hack. 
llvm-svn: 86769
 2009-11-11 00:28:38 +00:00
Chris Lattner
47b6f3432e oops, didn't mean to commit this, no harm, but add a todoops, didn't mean to commit this, no harm, but add a todoo 
llvm-svn: 86768
 2009-11-11 00:27:54 +00:00
Chris Lattner
6c04051d2a Stub out a new lazy value info pass, which will eventually 
vend value constraint information to the optimizer.

llvm-svn: 86767
 2009-11-11 00:22:30 +00:00
Chris Lattner
c1709a798a add a fixme 
llvm-svn: 86766
 2009-11-11 00:21:58 +00:00
Chris Lattner
c60b41d336 remove redundant foward declaration. This function is already in 
Analysis/Passes.h

llvm-svn: 86765
 2009-11-11 00:21:21 +00:00
Devang Patel
eb421ea5de While creating DbgScopes, do not forget parent scope. 
llvm-svn: 86763
 2009-11-11 00:18:40 +00:00
Evan Cheng
ea76ec6720 Block terminator may be a switch. 
llvm-svn: 86761
 2009-11-11 00:00:21 +00:00
Chris Lattner
1f7f78ea94 jump threading does everything that condprop does any more. This passes 
bootstrap on darwin i386.

llvm-svn: 86758
 2009-11-10 23:54:10 +00:00
Chris Lattner
bc9996444e add a note 
llvm-svn: 86756
 2009-11-10 23:47:45 +00:00
Chris Lattner
67aac80393 I did this a week or two ago 
llvm-svn: 86754
 2009-11-10 23:40:49 +00:00
Devang Patel
06e690849a Ignore variable if scope info is not available. 
llvm-svn: 86753
 2009-11-10 23:20:04 +00:00
Bill Wendling
ff705446e1 Test this on Darwin only. 
llvm-svn: 86752
 2009-11-10 23:18:33 +00:00
Dale Johannesen
20e1cd09ba Emit correct code when making a ConstantPool entry for a vector 
constant whose component type is not a legal type for the target.
(If the target ConstantPool cannot handle this type either, it has
an opportunity to merge elements.  In practice any target with
8-bit bytes must support i8 *as data*).  7320806 (partial).

llvm-svn: 86751
 2009-11-10 23:16:41 +00:00
Devang Patel
5c983cb2ab Implement support to debug inlined functions. 
llvm-svn: 86748
 2009-11-10 23:06:00 +00:00
Chris Lattner
958f41d9a4 in -dot-cfg and -dot-cfg-only, when rendering switch instructions, 
put the switch value in the successor boxes like we put T/F for branches.

llvm-svn: 86747
 2009-11-10 22:56:15 +00:00
Chris Lattner
f66a81aecd implement a TODO by teaching jump threading about "xor x, 1". 
llvm-svn: 86739
 2009-11-10 22:39:16 +00:00
Chris Lattner
ec4264fbb0 move some generally useful functions out of jump threading 
into libanalysis and transformutils.

llvm-svn: 86735
 2009-11-10 22:26:15 +00:00
Dan Gohman
b937f9d590 Don't mark conditional branch instructions as control barriers. 
llvm-svn: 86732
 2009-11-10 22:16:57 +00:00
Bill Wendling
1176227990 Modify how the prologue encoded the "move" information for the FDE. GCC 
generates a sequence similar to this:

__Z4funci:
LFB2:
        mflr r0
LCFI0:
        stmw r30,-8(r1)
LCFI1:
        stw r0,8(r1)
LCFI2:
        stwu r1,-80(r1)
LCFI3:
        mr r30,r1
LCFI4:

where LCFI3 and LCFI4 are used by the FDE to indicate what the FP, LR, and other
things are. We generated something more like this:

Leh_func_begin1:
        mflr r0
        stw r31, 20(r1)
        stw r0, 8(r1)
Llabel1:
        stwu r1, -80(r1)
Llabel2:
        mr r31, r1

Note that we are missing the "mr" instruction. This patch makes it more like the
GCC output.

llvm-svn: 86729
 2009-11-10 22:14:04 +00:00
Devang Patel
e70bec27b0 Process InlinedAt location info. 
Update InsertDeclare to return newly inserted llvm.dbg.declare intrinsic.

llvm-svn: 86727
 2009-11-10 22:05:35 +00:00
Chris Lattner
a163be92fc fix a crash in SCCP handling extractvalue of an array, pointed out and 
tracked down by Stephan Reiter!

llvm-svn: 86726
 2009-11-10 22:02:09 +00:00
Jakob Stoklund Olesen
b92c9347ba Teach PHIElimination to split critical edges when -split-phi-edges is enabled. 
Critical edges leading to a PHI node are split when the PHI source variable is
live out from the predecessor block. This help the coalescer eliminate more
PHI joins.

llvm-svn: 86725
 2009-11-10 22:01:05 +00:00
Jakob Stoklund Olesen
35918309f2 Refactoring: Extract method PHIElimination::isLiveOut(). 
Clean up some whitespace.
No functional changes.

llvm-svn: 86724
 2009-11-10 22:00:56 +00:00
Chris Lattner
f48b199c43 improve comment. 
llvm-svn: 86723
 2009-11-10 21:45:09 +00:00
Chris Lattner
fca84b3dff Make jump threading eliminate blocks that just contain phi nodes, 
debug intrinsics, and an unconditional branch when possible.  This
reuses the TryToSimplifyUncondBranchFromEmptyBlock function split
out of simplifycfg.

llvm-svn: 86722
 2009-11-10 21:40:01 +00:00
Evan Cheng
f5e85bec73 Generalize lsr code that optimize loop to count down towards zero. 
llvm-svn: 86715
 2009-11-10 21:14:05 +00:00
Dan Gohman
d7b00c4c8d Optimize test more. 
llvm-svn: 86714
 2009-11-10 21:02:18 +00:00
Victor Hernandez
70963992b8 make this handle redefinition of malloc function with different prototype correctly 
llvm-svn: 86712
 2009-11-10 19:53:28 +00:00
Evan Cheng
58fbf886bb Change Thumb1 address mode printing, instead of 
[r0, #2 * 4]
Now
[r0, #8]

This makes Thumb2 assembly more uniform and frankly the scale doesn't add much.

llvm-svn: 86707
 2009-11-10 19:48:13 +00:00
Evan Cheng
2c0fc2e713 Add a comment. 
llvm-svn: 86706
 2009-11-10 19:44:56 +00:00
Duncan Sands
1053bb18c6 Add defensive break. 
llvm-svn: 86705
 2009-11-10 19:36:40 +00:00
Daniel Dunbar
d8e09f2f13 Add a monstrous hack to improve X86ISelDAGToDAG compile time. 
- Force NDEBUG on in any Release build. This drops the compile time to ~100s
   from ~600s, in Release mode.

 - This may just be a temporary workaround, I don't know the true nature of the
   gcc-4.2 compile time performance problem.

llvm-svn: 86695
 2009-11-10 18:24:37 +00:00
Duncan Sands
bfba3451b2 Fix obvious typo. 
llvm-svn: 86694
 2009-11-10 18:21:37 +00:00
Chris Lattner
dc0722e39a clarify logic. 
llvm-svn: 86689
 2009-11-10 17:00:47 +00:00
Douglas Gregor
852c7d16df CMake: Add Darwin-specific linker flags for building loadable modules 
llvm-svn: 86684
 2009-11-10 15:30:33 +00:00