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Author SHA1 Message Date
Chris Lattner
6fdfc9c630 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86847 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 17:51:27 +00:00
Chris Lattner
d682a60c4e Reject duplicate case values in a switch, PR5450. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86846 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 17:37:02 +00:00
Duncan Sands
a3da922a27 Don't trivially delete unused calls to llvm.invariant.start. This allows 
llvm.invariant.start to be used without necessarily being paired with a call
to llvm.invariant.end.  If you run the entire optimization pipeline then such
calls are in fact deleted (adce does it), but that's actually a good thing since
we probably do want them to be zapped late in the game.  There should really be
an integration test that checks that the llvm.invariant.start call lasts long
enough that all passes that do interesting things with it get to do their stuff
before it is deleted.  But since no passes do anything interesting with it yet
this will have to wait for later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86840 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 15:34:13 +00:00
Evan Cheng
012397489b Add nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86814 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 07:11:02 +00:00
Chris Lattner
f8fb7c26ee remove the now dead condprop pass, PR3906. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86810 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 05:56:35 +00:00
Jeffrey Yasskin
b069c91191 Fix JITTest.ModuleDeletion in -Asserts mode (which turns off JITEmitDebugInfo 
by default).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86807 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 05:30:02 +00:00
Chris Lattner
f1e9cf5020 remove condprop testcases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86804 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 05:25:16 +00:00
Daniel Dunbar
a8333d3d10 Add StringRef::split(StringRef), to complement StringRef::split(char). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86803 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 05:19:11 +00:00
Rafael Espindola
90a6fd31b7 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86802 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 04:10:24 +00:00
Sandeep Patel
bf177ee6fd Show command-line args and features passed into backend in debug output. Approved by Evan Cheng. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86797 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 03:23:46 +00:00
Daniel Dunbar
95470b73ba Add missing run line. Devang, please check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86795 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 03:10:03 +00:00
Daniel Dunbar
c032679d3e Fix -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86794 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 03:09:50 +00:00
Jim Grosbach
1fc7d715aa 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 02:47:19 +00:00
Chris Lattner
cc4d3b25f3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86789 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 02:08:33 +00:00
Bill Wendling
5606ec894e Fix test to work on every platform. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86786 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 01:44:22 +00:00
Bill Wendling
13f6135742 Fix test to work on every platform. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86785 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 01:41:32 +00:00
Devang Patel
3bbc9b4590 XFAIL for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86784 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 01:41:10 +00:00
Bill Wendling
ee161a6824 Make sure that the exception handling data has the same visibility as the 
function it's generated for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86779 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 01:24:59 +00:00
Daniel Dunbar
3691393b86 Add Triple::str() which returns the contents of the Triple as a string, as a more readable alternative to getTriple(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86773 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:43:14 +00:00
Devang Patel
39ae3ff6d1 Do not assume first function scope seen represents current function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86771 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:31:36 +00:00
Daniel Dunbar
64066bd8b5 Add From arguments to StringRef search functions, and tweak doxyments. 
Also, add unittests for find_first_of and find_first_not_of.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86770 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:28:53 +00:00
Daniel Dunbar
253e9b2990 llvm-gcc/clang don't (won't?) need this hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86769 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:28:38 +00:00
Chris Lattner
2b9024c877 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 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86768 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:27:54 +00:00
Chris Lattner
10f2d13d58 Stub out a new lazy value info pass, which will eventually 
vend value constraint information to the optimizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:22:30 +00:00
Chris Lattner
b14b88a40a add a fixme 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86766 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:21:58 +00:00
Chris Lattner
68cf6042c1 remove redundant foward declaration. This function is already in 
Analysis/Passes.h



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86765 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:21:21 +00:00
Devang Patel
2f105c6e18 While creating DbgScopes, do not forget parent scope. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86763 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:18:40 +00:00
Evan Cheng
f40888dc9b Block terminator may be a switch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:00:21 +00:00
Chris Lattner
6eb8dd2276 jump threading does everything that condprop does any more. This passes 
bootstrap on darwin i386.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86758 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:54:10 +00:00
Chris Lattner
1742498b5a add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86756 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:47:45 +00:00
Chris Lattner
b6ad9153dd I did this a week or two ago 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86754 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:40:49 +00:00
Devang Patel
fb0ee43438 Ignore variable if scope info is not available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86753 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:20:04 +00:00
Bill Wendling
6b41aba7ce Test this on Darwin only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86752 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:18:33 +00:00
Dale Johannesen
9a645cd9d4 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86751 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:16:41 +00:00
Devang Patel
53bb5c95af Implement support to debug inlined functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86748 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 23:06:00 +00:00
Chris Lattner
0a26870d92 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86747 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:56:15 +00:00
Chris Lattner
055d046f48 implement a TODO by teaching jump threading about "xor x, 1". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86739 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:39:16 +00:00
Chris Lattner
40d8c28b27 move some generally useful functions out of jump threading 
into libanalysis and transformutils.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86735 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:26:15 +00:00
Dan Gohman
5b37fbac1a Don't mark conditional branch instructions as control barriers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86732 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:16:57 +00:00
Bill Wendling
b19a5e9be6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86729 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:14:04 +00:00
Devang Patel
6daf99bf8f Process InlinedAt location info. 
Update InsertDeclare to return newly inserted llvm.dbg.declare intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86727 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:05:35 +00:00
Chris Lattner
103f2434b8 fix a crash in SCCP handling extractvalue of an array, pointed out and 
tracked down by Stephan Reiter!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86726 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:02:09 +00:00
Jakob Stoklund Olesen
f235f13931 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86725 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:01:05 +00:00
Jakob Stoklund Olesen
e35e3c33dc Refactoring: Extract method PHIElimination::isLiveOut(). 
Clean up some whitespace.
No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86724 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 22:00:56 +00:00
Chris Lattner
6f84a5feee improve comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86723 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 21:45:09 +00:00
Chris Lattner
f3183f6da6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86722 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 21:40:01 +00:00
Evan Cheng
81ebdcf7dd Generalize lsr code that optimize loop to count down towards zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86715 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 21:14:05 +00:00
Dan Gohman
14bbbf3168 Optimize test more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86714 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 21:02:18 +00:00
Victor Hernandez
f06dca2918 make this handle redefinition of malloc function with different prototype correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86712 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 19:53:28 +00:00
Evan Cheng
4b6bbe1e9c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 19:48:13 +00:00