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Commit Graph

53984 Commits

Author SHA1 Message Date
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
Duncan Sands
732a2ed037 Teach DSE to eliminate useless trampolines.
llvm-svn: 86683
2009-11-10 13:49:50 +00:00
Duncan Sands
a25c87ef1f Add brackets to make gcc-4.4 happy.
llvm-svn: 86681
2009-11-10 09:32:10 +00:00
Duncan Sands
737962bca6 Codegen support for the llvm.invariant/lifetime.start/end intrinsics:
just throw them away.

llvm-svn: 86678
2009-11-10 09:08:09 +00:00
Victor Hernandez
3c98070f2c Update computeArraySize() to use ComputeMultiple() to determine the array size associated with a malloc; also extend PerformHeapAllocSRoA() to check if the optimized malloc's arg had its highest bit set, so that it is safe for ComputeMultiple() to look through sext instructions while determining the optimized malloc's array size
llvm-svn: 86676
2009-11-10 08:32:25 +00:00
Victor Hernandez
89c04dbe2f Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base
llvm-svn: 86675
2009-11-10 08:28:35 +00:00
Chris Lattner
3455c2f5c6 optimize test
llvm-svn: 86672
2009-11-10 07:44:36 +00:00
Chris Lattner
562cc40dbb unify the code that determines whether it is a good idea to change the type
of a computation.  This fixes some infinite loops when dealing with TD that
has no native types.

llvm-svn: 86670
2009-11-10 07:23:37 +00:00
Nick Lewycky
4939d449e1 Simplify.
llvm-svn: 86668
2009-11-10 07:00:43 +00:00
Nick Lewycky
f6be02e523 Reapply r86359, "Teach dead store elimination that certain intrinsics write to
memory just like a store" with bug fixed (partial-overwrite.ll is the
regression test).

llvm-svn: 86667
2009-11-10 06:46:40 +00:00
Chris Lattner
9428f34d89 refactor TryToSimplifyUncondBranchFromEmptyBlock out of SimplifyCFG.
llvm-svn: 86666
2009-11-10 05:59:26 +00:00
Oscar Fuentes
ce417d0ac2 CMake: Support for building llvm loadable modules.
llvm-svn: 86656
2009-11-10 02:45:37 +00:00
Daniel Dunbar
9b762e5350 lit: Start documentation testing architecture.
llvm-svn: 86655
2009-11-10 02:41:27 +00:00
Daniel Dunbar
fbe1d52c6a lit: Add ExampleTests, for testing lit and demonstrating test suite features.
llvm-svn: 86654
2009-11-10 02:41:17 +00:00
Daniel Dunbar
da307a7868 lit: Fix bug in --show-suites which accidentally override the list of tests.
llvm-svn: 86653
2009-11-10 02:40:21 +00:00
Bruno Cardoso Lopes
b662991460 Fix PR5445
llvm-svn: 86651
2009-11-10 02:35:13 +00:00