Commit Graph

81762 Commits

Author SHA1 Message Date
Jim Grosbach 86afe67e10 Tidy up. Formatting.
llvm-svn: 155177
2012-04-20 00:14:57 +00:00
Jim Grosbach 6b46134862 ARM let TableGen handle a few two-operand aliases.
No need for these explicit aliases anymore. Nuke 'em.

llvm-svn: 155173
2012-04-19 23:59:26 +00:00
Jim Grosbach 31c2d3fa74 TableGen support for auto-generating assembly two-operand aliases.
Assembly matchers for instructions with a two-operand form. ARM is full
of these, for example:
  add {Rd}, Rn, Rm  // Rd is optional and is the same as Rn if omitted.

The property TwoOperandAliasConstraint on the instruction definition controls
when, and if, an alias will be formed. No explicit InstAlias definitions
are required.

rdar://11255754

llvm-svn: 155172
2012-04-19 23:59:23 +00:00
Bill Wendling 9f97595201 Put this expensive check below the less expensive ones.
llvm-svn: 155166
2012-04-19 23:31:07 +00:00
Bob Wilson 32e62f1fd5 When cross compiling, install a host version of llvm-config. <rdar://11187889>
Now that llvm-config is a binary instead of a script the version installed
during a cross compiled build cannot be run from the host.  When cross
compiling, install a separate llvm-config-host that will run on the host.

llvm-svn: 155164
2012-04-19 23:19:55 +00:00
Dan Gohman 26aa827461 Avoid a bug in the path count computation, preventing an infinite
loop repeatedlt making the same change. This is for rdar://11256239.

llvm-svn: 155160
2012-04-19 21:50:46 +00:00
Joel Jones a7691f18a6 Test for the the problem with xors being changed into ands
when the set bits aren't the same for both args of the xor.
This transformation is in the function TargetLowering::SimplifyDemandedBits
in the file lib/CodeGen/SelectionDAG/TargetLowering.cpp.

I have tested this test using a previous version of llc which the defect and 
the a version of llc which does not. I got the expected fail and pass, 
respectively.

This test goes with rdar://11195364 and the check in with the fix: svn r154955

llvm-svn: 155156
2012-04-19 20:54:44 +00:00
Daniel Dunbar 46d611a227 [docs] Update HTML pages to refer to CSS in a way that works locally and with Sphinx.
llvm-svn: 155153
2012-04-19 20:20:34 +00:00
Daniel Dunbar f1cfef17e3 [docs] Remove index.html, I am flipping the switch on llvm.org.
llvm-svn: 155151
2012-04-19 20:06:39 +00:00
Michael J. Spencer 9125493efe Remove llvm-ld and llvm-stub (which is only used by llvm-ld).
llvm-ld is no longer useful and causes confusion and so it is being removed.

* Does not work very well on Windows because it must call a gcc like driver to
  assemble and link.
* Has lots of hard coded paths which are wrong on many systems.
* Does not understand most of ld's options.
* Can be partially replaced by llvm-link | opt | {llc | as, llc -filetype=obj} |
  ld, or fully replaced by Clang.

I know of no production use of llvm-ld, and hacking use should be
replaced by Clang's driver.

llvm-svn: 155147
2012-04-19 19:27:54 +00:00
Jim Grosbach a37e2295d4 Use a SmallVector instead of std::vector for ResOperands.
There's almost always a small number of instruction operands, so
use a SmallVector and save on heap allocations.

llvm-svn: 155143
2012-04-19 17:52:34 +00:00
Jim Grosbach 8c2beaac8b Update some internal naming conventions to modern style.
llvm-svn: 155142
2012-04-19 17:52:32 +00:00
Jakob Stoklund Olesen 6b6c81e6b2 Defer some shl transforms to DAGCombine.
The shl instruction is used to represent multiplication by a constant
power of two as well as bitwise left shifts. Some InstCombine
transformations would turn an shl instruction into a bit mask operation,
making it difficult for later analysis passes to recognize the
constsnt multiplication.

Disable those shl transformations, deferring them to DAGCombine time.
An 'shl X, C' instruction is now treated mostly the same was as 'mul X, C'.

These transformations are deferred:

  (X >>? C) << C   --> X & (-1 << C)  (When X >> C has multiple uses)
  (X >>? C1) << C2 --> X << (C2-C1) & (-1 << C2)   (When C2 > C1)
  (X >>? C1) << C2 --> X >>? (C1-C2) & (-1 << C2)  (When C1 > C2)

The corresponding exact transformations are preserved, just like
div-exact + mul:

  (X >>?,exact C) << C   --> X
  (X >>?,exact C1) << C2 --> X << (C2-C1)
  (X >>?,exact C1) << C2 --> X >>?,exact (C1-C2)

The disabled transformations could also prevent the instruction selector
from recognizing rotate patterns in hash functions and cryptographic
primitives. I have a test case for that, but it is too fragile.

llvm-svn: 155136
2012-04-19 16:46:26 +00:00
Daniel Dunbar 6dafd09680 [docs] Add back old index.html until I get llvm.org work done to support Sphinx docs.
llvm-svn: 155134
2012-04-19 16:37:30 +00:00
Daniel Dunbar fbb8041194 [docs] Convert docs index page into Sphinx.
- Work in progress, this is mostly important because it lets us incrementally migrate the remaining documentation.
 - Lots of styling, editing, and integration work yet to come…
 - PR12589

llvm-svn: 155133
2012-04-19 16:31:37 +00:00
Daniel Dunbar 09b8c0f115 [docs] Stub out structure for Sphinx-based docs.
- Work in progress, this is just the basic structure.

llvm-svn: 155132
2012-04-19 16:31:19 +00:00
Daniel Dunbar 58cfaf8684 llvm-lit: Inject the lit module path at the beginning of sys.path, just in case
the user has another lit somewhere.

llvm-svn: 155131
2012-04-19 16:31:08 +00:00
Gabor Greif 180c4445cf zap tabs
llvm-svn: 155128
2012-04-19 15:16:31 +00:00
Craig Topper eb63a4df26 Make fast isel use &XXXRegClass instead of XXXRegisterClass. Not a functional change since XXXRegisterClass is just a constant alias of &XXXRegClass, but should probably go away.
llvm-svn: 155104
2012-04-19 06:52:06 +00:00
Andrew Trick a11810ad60 Allow targets to select the default scheduler by name.
llvm-svn: 155090
2012-04-19 01:34:10 +00:00
Andrew Trick 1af4a84740 whitespace
llvm-svn: 155089
2012-04-19 01:34:06 +00:00
Jakob Stoklund Olesen 201ba5fa00 Extract the broken part of XFAILed test into its own file.
llvm-svn: 155081
2012-04-19 00:20:38 +00:00
Jim Grosbach 925a6d08c5 Fix typo.
llvm-svn: 155075
2012-04-18 23:46:25 +00:00
Kevin Enderby ec4bd31206 Fixed the llvm-mv X86 disassembler so the 'C' API gets jumps properly
symbolicated.  These have and operand type of TYPE_RELv which was not handled
as isBranch in translateImmediate() in X86Disassembler.cpp.  rdar://11268426 

llvm-svn: 155074
2012-04-18 23:12:11 +00:00
Dan Gohman 22fbe8d709 Don't crash on code where the user put __attribute__((constructor)) on
a function with arguments. This fixes rdar://11265785.

llvm-svn: 155073
2012-04-18 22:24:33 +00:00
Bill Wendling eb1c2bdc1f Add a flag to rebranch if we need to.
llvm-svn: 155049
2012-04-18 21:38:12 +00:00
Chandler Carruth b415bf98f0 This reverts a long string of commits to the Hexagon backend. These
commits have had several major issues pointed out in review, and those
issues are not being addressed in a timely fashion. Furthermore, this
was all committed leading up to the v3.1 branch, and we don't need piles
of code with outstanding issues in the branch.

It is possible that not all of these commits were necessary to revert to
get us back to a green state, but I'm going to let the Hexagon
maintainer sort that out. They can recommit, in order, after addressing
the feedback.

Reverted commits, with some notes:

Primary commit r154616: HexagonPacketizer
  - There are lots of review comments here. This is the primary reason
    for reverting. In particular, it introduced large amount of warnings
    due to a bad construct in tablegen.
  - Follow-up commits that should be folded back into this when
    reposting:
    - r154622: CMake fixes
    - r154660: Fix numerous build warnings in release builds.
  - Please don't resubmit this until the three commits above are
    included, and the issues in review addressed.

Primary commit r154695: Pass to replace transfer/copy ...
  - Reverted to minimize merge conflicts. I'm not aware of specific
    issues with this patch.

Primary commit r154703: New Value Jump.
  - Primarily reverted due to merge conflicts.
  - Follow-up commits that should be folded back into this when
    reposting:
    - r154703: Remove iostream usage
    - r154758: Fix CMake builds
    - r154759: Fix build warnings in release builds
  - Please incorporate these fixes and and review feedback before
    resubmitting.

Primary commit r154829: Hexagon V5 (floating point) support.
  - Primarily reverted due to merge conflicts.
  - Follow-up commits that should be folded back into this when
    reposting:
    - r154841: Remove unused variable (fixing build warnings)

There are also accompanying Clang commits that will be reverted for
consistency.

llvm-svn: 155047
2012-04-18 21:31:19 +00:00
Pete Cooper 8998657c64 LiveIntervalUpdate validators weren't recorded after the calls to std::for_each. Turns out std::for_each doesn't update the variable passed in for the functor but instead copy constructs a new one.
llvm-svn: 155041
2012-04-18 20:29:17 +00:00
Jim Grosbach dd9257428d Document that StringMap iteration order is non-deterministic.
llvm-svn: 155040
2012-04-18 20:28:55 +00:00
Jim Grosbach efe653f973 Revert "Replace some uses of std:map<std::string,...> with StringMap."
StringMap iterators are not deterministic, and that's more important
here than speed or memory.

llvm-svn: 155039
2012-04-18 20:24:49 +00:00
Benjamin Kramer 11983a4f85 tblgen: remove duplicated newlines.
llvm-svn: 155038
2012-04-18 19:22:47 +00:00
Jim Grosbach 2bed0f974f Replace some uses of std:map<std::string,...> with StringMap.
llvm-svn: 155037
2012-04-18 19:13:59 +00:00
Benjamin Kramer bb73d19794 SourceMgr: Colorize diagnostics.
Same color scheme as clang uses. The colors are only enabled if the output is a tty.

llvm-svn: 155035
2012-04-18 19:04:15 +00:00
Jim Grosbach dba3f5be00 Use SmallVector for the requirements on an InstAlias.
llvm-svn: 155034
2012-04-18 19:02:43 +00:00
Jim Grosbach f4e6708c7a Tidy up. Formatting.
llvm-svn: 155032
2012-04-18 18:56:33 +00:00
Akira Hatanaka fc1d00bbd6 Mark instruction classes ArithLogicR, ArithLogicI and LoadUpper as isRematerializable.
llvm-svn: 155031
2012-04-18 18:52:10 +00:00
Akira Hatanaka 4167bb9346 Delete blank line.
llvm-svn: 155030
2012-04-18 18:47:17 +00:00
Jim Grosbach 9a7f4b76e5 Move a few more warnings to use PrintWarning().
llvm-svn: 155027
2012-04-18 18:39:31 +00:00
Jim Grosbach 1752ffbfe5 Tidy up. No need for a Twine here, as it's just constants.
llvm-svn: 155026
2012-04-18 18:39:27 +00:00
Jim Grosbach 0fda36485e Formatting.
llvm-svn: 155025
2012-04-18 18:39:23 +00:00
Jim Grosbach 40e984074c Tidy up. Add a '.' at the end of the sentence.
llvm-svn: 155024
2012-04-18 18:39:19 +00:00
Jim Grosbach f30541e920 Fix copy/paste-o.
llvm-svn: 155016
2012-04-18 18:09:53 +00:00
Jim Grosbach 7670374c06 Clean up warning text. Remove extraneous prefix.
llvm-svn: 155015
2012-04-18 18:09:50 +00:00
Jim Grosbach 3ae48a6236 TableGen use PrintWarning rather than fprintf(stderr,...) for warnings.
That way we get source line number information from the diagnostics.

llvm-svn: 155014
2012-04-18 17:46:41 +00:00
Jim Grosbach 8e29edcde6 Tidy up. Trailing whitespace.
llvm-svn: 155013
2012-04-18 17:46:37 +00:00
Jim Grosbach cc6cbf05a3 TableGen add warning diagnostic helper functions.
llvm-svn: 155012
2012-04-18 17:46:31 +00:00
Jakob Stoklund Olesen 905969a1d4 FileCheckize
llvm-svn: 155010
2012-04-18 17:01:26 +00:00
Jakob Stoklund Olesen 7ecc4e9bb3 Nobody likes shifty instructions, but that was a bit strong.
llvm-svn: 155009
2012-04-18 16:44:44 +00:00
Silviu Baranga ca45af9a75 Added support for disassembling unpredictable swp/swpb ARM instructions.
llvm-svn: 155004
2012-04-18 14:18:57 +00:00
Silviu Baranga d5c6a63a50 Fix the bahavior of the disassembler when decoding unpredictable mrs instructions on ARM. Now the diasassembler emmits warnings instead of errors.
llvm-svn: 155002
2012-04-18 14:09:07 +00:00