Sandeep Patel
bf177ee6fd
Show command-line args and features passed into backend in debug output. Approved by Evan Cheng.
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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.
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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.
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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
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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
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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.
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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.
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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.
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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
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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().
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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.
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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.
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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.
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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
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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
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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
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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
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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.
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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.
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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
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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
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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
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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.
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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.
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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
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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.
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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,
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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".
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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
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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.
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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
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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.
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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
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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.
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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().
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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.
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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,
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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.
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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.
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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
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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
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[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
Evan Cheng
1e13c797e5
Add a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 19:44:56 +00:00
Duncan Sands
650c64383e
Add defensive break.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 19:36:40 +00:00
Daniel Dunbar
5da58851e5
Add a monstrous hack to improve X86ISelDAGToDAG compile time.
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- 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 18:24:37 +00:00
Duncan Sands
e3f749b166
Fix obvious typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86694 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 18:21:37 +00:00
Chris Lattner
6b583919d9
clarify logic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 17:00:47 +00:00
Douglas Gregor
8781416858
CMake: Add Darwin-specific linker flags for building loadable modules
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 15:30:33 +00:00
Duncan Sands
710c37c494
Teach DSE to eliminate useless trampolines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86683 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 13:49:50 +00:00
Duncan Sands
e9097f7438
Add brackets to make gcc-4.4 happy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86681 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 09:32:10 +00:00
Duncan Sands
f07c9497b2
Codegen support for the llvm.invariant/lifetime.start/end intrinsics:
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just throw them away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86678 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-10 09:08:09 +00:00