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Author SHA1 Message Date
Lang Hames
af8b34dae9 Turn off assertion, conservatively compute liveness for live-in un-allocatable registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150768 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-17 00:18:18 +00:00
Akira Hatanaka
178d870795 Remove comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150739 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 22:52:29 +00:00
Chad Rosier
a69feb0f33 Remove unnecessary assignment to temporary, ResultReg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150737 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 22:45:33 +00:00
Bill Wendling
5b0e7886f3 Use –mcpu=generic, so that the test will not fail when run on an Intel Atom 
processor, due to the Atom scheduler producing an instruction sequence that is
different from that which is expected.
Patch by Michael Spencer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150736 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 22:42:48 +00:00
Chad Rosier
331888460b Update credits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150715 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 18:54:41 +00:00
Jakob Stoklund Olesen
2624661011 Note x86 regmask operands in release notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150712 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 18:22:39 +00:00
Jakob Stoklund Olesen
8b0a3f2df9 Remove the YMM_HI_6_15 hack. 
Call clobbers are now represented with register mask operands.  The
regmask can easily represent the fact that xmm6 is call-preserved while
ymm6 isn't.  This is automatically computed by TableGen from the
CalleeSavedRegs containing xmm6.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150709 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 17:56:06 +00:00
Jakob Stoklund Olesen
527a08b253 Use the same CALL instructions for Windows as for everything else. 
The different calling conventions and call-preserved registers are
represented with regmask operands that are added dynamically.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150708 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 17:56:02 +00:00
Akira Hatanaka
e3186774f3 Remove trailing whitespace. Add newline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150706 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 17:48:20 +00:00
Benjamin Kramer
1a7ea9dd04 Disable machine copy propagation for now. It's known to be buggy (PR11940) and introduces subtle miscompiles in many places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150703 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 17:29:50 +00:00
Benjamin Kramer
ea79b8e03c Revert "InstSimplify: Strip pointer casts early." 
Turns out this isn't safe, because the code below depends on LHS and RHS having
the same type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150695 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 15:19:59 +00:00
Benjamin Kramer
475ebf5a74 InstSimplify: Strip pointer casts early. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150694 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 15:03:04 +00:00
Benjamin Kramer
fd8779a94b InstSimplify: Ignore pointer casts when constant folding compares between pointers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150690 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 13:49:39 +00:00
Bill Wendling
e6bd7a8058 s/ModAttrBehavior/ModFlagBehavior/g to be consistent with how module flags are named elsewhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150679 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 10:28:10 +00:00
Bill Wendling
7d4deaae1f Add 'exception handling' to my description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150678 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 10:25:07 +00:00
Bill Wendling
190ec9b9c1 Add blurb about module flags and reformat a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150677 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 10:23:43 +00:00
James Molloy
6afa3f744a Remove extraneous #include and spelling mistake introduced in r150669. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150670 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 09:48:07 +00:00
James Molloy
6660c05da3 Modify the algorithm when traversing the DAGCombiner's worklist to be O(log N) for all operations. This fixes a horrible worst case with lots of nodes where 99% of the time was being spent in std::remove. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150669 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 09:17:04 +00:00
NAKAMURA Takumi
22bed5db2f VMCore/AsmWriter.cpp: Tweak to check #INF and #NAN earlier. 
With MSVCRT, prior checker missed emission of #INF and #NAN.

FIXME: Checking should be simpler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150667 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 08:12:24 +00:00
Eli Bendersky
0f0c411079 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed. 
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 06:28:33 +00:00
Pete Cooper
d8d110e08a Template specialize SmallVector::push_back based on POD-ness of the type. Reduces clang binary by 188KB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150662 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 04:58:48 +00:00
NAKAMURA Takumi
c8782a1a53 VMCore/AsmWriter.cpp: Use APFloat instead of atof(3). 
atof(3) might behave differently among platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150661 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 04:19:15 +00:00
Lang Hames
1834df8384 Oop - r150653 + r150654 broke one of my test cases. Backing out for now... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150655 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 02:32:10 +00:00
Lang Hames
afae28b1c6 FPSCR shouldn't be reserved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150654 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 02:28:14 +00:00
Lang Hames
f7e31b9e81 MachineCSE shouldn't extend the live ranges of reserved or allocatable registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150653 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 02:19:35 +00:00
Bill Wendling
f7b367ce45 Give a description of the Objective-C garbage collection module flags. 
The rule governing the flags is this:

  no-gc + no-gc   = no-gc
  no-gc +    gc   = no-gc
  no-gc + gc-only = error
     gc +    gc   = gc
     gc + gc-only = gc-only
gc-only + gc-only = gc-only


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150646 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 01:10:50 +00:00
Eli Friedman
5e6162e756 loop-rotate shouldn't hoist alloca instructions out of a loop. Patch by Patrik Hägglund, with slightly modified test. Issue reported by Patrik Hägglund on llvmdev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150642 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 00:41:10 +00:00
Jakob Stoklund Olesen
8bcde2aa66 Enable register mask operands for x86 calls. 
Call instructions no longer have a list of 43 call-clobbered registers.
Instead, they get a single register mask operand with a bit vector of
call-preserved registers.

This saves a lot of memory, 42 x 32 bytes = 1344 bytes per call
instruction, and it speeds up building call instructions because those
43 imp-def operands no longer need to be added to use-def lists. (And
removed and shifted and re-added for every explicit call operand).

Passes like LiveVariables, LiveIntervals, RAGreedy, PEI, and
BranchFolding are significantly faster because they can deal with call
clobbers in bulk.

Overall, clang -O2 is between 0% and 8% faster, uniformly distributed
depending on call density in the compiled code.  Debug builds using
clang -O0 are 0% - 3% faster.

I have verified that this patch doesn't change the assembly generated
for the LLVM nightly test suite when building with -disable-copyprop
and -disable-branch-fold.

Branch folding behaves slightly differently in a few cases because call
instructions have different hash values now.

Copy propagation flushes its data structures when it crosses a register
mask operand. This causes it to leave a few dead copies behind, on the
order of 20 instruction across the entire nightly test suite, including
SPEC. Fixing this properly would require the pass to use different data
structures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150638 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 00:02:50 +00:00
Bill Wendling
46b8b27057 Remove extraneous tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150636 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 23:44:05 +00:00
Bill Wendling
b183f5283a Add a test for generating Objective-C metadata from module flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150635 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 23:43:37 +00:00
Jakob Stoklund Olesen
a230262791 Handle register masks in branch folding. 
Don't attempt to move instructions with regmask operands. They are most
likely calls anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150634 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 23:42:54 +00:00
Andrew Trick
e746186ed4 Fix library visibility problems with VLIWPacketizer. 
The existing framework for postra scheduling is library local. We want to keep it that way. Soon we will have a more general MachineScheduler interface. At that time, various bits will be exposed to targets. In the meantime, the VLIWPacketizer wants to use ScheduleDAGInstrs directly, so it needs to wrapped in a PIMPL to avoid exposing it to the target interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150633 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 23:34:15 +00:00
Bill Wendling
426f215732 Use the enum instead of 'unsigned'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150632 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 23:27:50 +00:00
Lang Hames
cc2037be2c Make LiveIntervals::handleMove() bundle aware. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150630 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 23:21:33 +00:00
Bill Wendling
2de3ff5043 Use 'getDataNoRel' for the section kind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150628 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:47:53 +00:00
Lang Hames
cc72913268 Fix assertion condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150627 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:45:51 +00:00
Bill Wendling
39c4cd3180 Add a test for the Objective-C garbage collection metadata stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150626 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:44:10 +00:00
Bill Wendling
057d521e3d Modify the code that emits the module flags to use the new module flags accessor 
method. This allows the target lowering code to not have to deal with MDNodes.

Also, avoid leaking memory like a sieve by not creating a global variable for
the image info section, but just emitting the code directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150624 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:36:15 +00:00
Bill Wendling
f20f281368 Add a module flags accessor method which returns the flags in a vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150623 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:34:20 +00:00
Kaelyn Uhrain
01d53ec176 Add function for computing the edit distance of two arrays. 
Accomplished by moving the body of StringRef::edit_distance into
a separate function that accepts two ArrayRefs, and making
StringRef::edit_distance a wrapper around the new function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150621 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:13:07 +00:00
Andrew Trick
68c36e0c26 Don't expose DefaultVLIWScheduler 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150619 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 22:06:21 +00:00
Daniel Dunbar
5b1065629b utils: Kill NewNightlyTest.pl, which has been replaced by LNT (as far as I know). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150610 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 19:24:11 +00:00
Lang Hames
862fd5f77a Remove overly conservative assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150608 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 19:04:53 +00:00
Andrew Trick
ebafa0c611 Generic "VLIW" packetizer based on a DFA generated from target itinerary. 
Patch by Sundeep!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150607 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 18:55:14 +00:00
Sirish Pande
ab7955b9ce Optimize redundant sign extends and negation of predicates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150606 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 18:52:27 +00:00
Eric Christopher
2a4bc1e703 Revert "Replacing HexagonOptimizeSZExtends with HexagonPeephole." 
This reverts commit 1656806a944bbd23e98c6e578810fe02495ab741.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150605 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 18:34:25 +00:00
Eric Christopher
eddd6abdde Revert "Optimize redundant sign extends and negation of predicates" 
as it's breaking the build.

This reverts commit 11241abca5.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150604 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 18:32:25 +00:00
Sirish Pande
a997b3e51a Replacing HexagonOptimizeSZExtends with HexagonPeephole. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150603 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 18:31:35 +00:00
Sirish Pande
11241abca5 Optimize redundant sign extends and negation of predicates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150601 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 18:22:18 +00:00
Chad Rosier
40d552e0be Add braces to if clause to make symmetric with associate else clause. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150591 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 17:36:21 +00:00