Commit Graph

61167 Commits

Author SHA1 Message Date
Nate Begeman 878bdccea6 Progress on generating BuiltinsARM.def, still some duplicates to work out.
llvm-svn: 105461
2010-06-04 07:11:25 +00:00
Nate Begeman 1ca8dba557 BuiltinsARM.def emitter, still needs a substantial bit of tweaking to lighten the load on clang.
llvm-svn: 105456
2010-06-04 01:26:15 +00:00
Jim Grosbach 4e5e6a8973 more dbg_value adjustments so debug info doesn't affect codegen
llvm-svn: 105454
2010-06-04 01:23:30 +00:00
Mon P Wang 622cdd2297 Fixed a bug during widening where we would avoid legalizing a node. When we
replace an OpA with a widened OpB, it is possible to get new uses of OpA due to CSE
when recursively updating nodes.  Since OpA has been processed, the new uses are
not examined again.  The patch checks if this occurred and it it did, updates the
new uses of OpA to use OpB.

llvm-svn: 105453
2010-06-04 01:20:10 +00:00
Dale Johannesen b3780b1103 Remove more tail calls.
llvm-svn: 105450
2010-06-04 01:01:24 +00:00
Dale Johannesen e7b392dca9 Remove a tail call, and move some CHECKs to the
functions where they belong.

llvm-svn: 105449
2010-06-04 01:01:04 +00:00
Nate Begeman 03d6e4961c Mangle __builtin_neon_* names appropriately.
Add skeleton of support for emitting the list of prototypes for BuiltinsARM.def

llvm-svn: 105443
2010-06-04 00:21:41 +00:00
Dan Gohman ae8bb42f5b No need to special-case structs here; structs are first-class now.
llvm-svn: 105442
2010-06-04 00:18:06 +00:00
Jim Grosbach 1bcdf32d22 fix typo
llvm-svn: 105441
2010-06-04 00:15:00 +00:00
Dan Gohman 8fdda8a655 This test doesn't need the ssp attribute.
llvm-svn: 105440
2010-06-04 00:14:48 +00:00
Bob Wilson d8a9a04739 For NEON vectors with 32- or 64-bit elements, select BUILD_VECTORs and
VECTOR_SHUFFLEs to REG_SEQUENCE instructions.  The standard ISD::BUILD_VECTOR
node corresponds closely to REG_SEQUENCE but I couldn't use it here because
its operands do not get legalized.  That is pretty awful, but I guess it
makes sense for other targets.  Instead, I have added an ARM-specific version
of BUILD_VECTOR that will have its operands properly legalized.
This fixes the rest of Radar 7872877.

llvm-svn: 105439
2010-06-04 00:04:02 +00:00
Dale Johannesen e288fee959 Remove tail call. A tail call version will follow.
llvm-svn: 105438
2010-06-04 00:03:37 +00:00
Bob Wilson a733daf18c Add some missing checks in TwoAddressInstructionPass::CoalesceExtSubRegs.
Check that all the instructions are in the same basic block, that the
EXTRACT_SUBREGs write to the same subregs that are being extracted, and that
the source and destination registers are in the same regclass.  Some of
these constraints can be relaxed with a bit more work.  Jakob suggested
that the loop that checks for subregs when NewSubIdx != 0 should use the
"nodbg" iterator, so I made that change here, too.

llvm-svn: 105437
2010-06-03 23:53:58 +00:00
Jim Grosbach 01edd68225 Cleanup 80-column and trim trailing whitespace
llvm-svn: 105435
2010-06-03 23:49:57 +00:00
Jim Grosbach b30b81edb6 Teach the ARM load-store optimizer to deal with dbg_value instructions.
llvm-svn: 105427
2010-06-03 22:41:15 +00:00
Dale Johannesen 9f71f7f70c Remove tail call to preserve this test. A tail
call version will follow.

llvm-svn: 105422
2010-06-03 21:57:48 +00:00
Dale Johannesen 41528aeb0b Make this test not use tail calls. A tail call
version will follow.

llvm-svn: 105419
2010-06-03 21:53:01 +00:00
Nate Begeman 64b76bd4f7 Add some additional capabilities to the neon emitter
llvm-svn: 105416
2010-06-03 21:35:22 +00:00
Rafael Espindola 8fb957e5cb Add a emit-llvm option to the plugin and make the path argument to also-emit-llvm optional.
llvm-svn: 105414
2010-06-03 21:11:20 +00:00
Dale Johannesen d679ff7330 Early implementation of tail call for ARM.
A temporary flag -arm-tail-calls defaults to off,
so there is no functional change by default.
Intrepid users may try this; simple cases work
but there are bugs.

llvm-svn: 105413
2010-06-03 21:09:53 +00:00
Dan Gohman d83e3e7750 Fix SimplifyDemandedBits' AssertZext logic to demand all the bits. It
needs to demand the high bits because it's asserting that they're zero.

llvm-svn: 105406
2010-06-03 20:21:33 +00:00
Bob Wilson 30093b5d8b Revert 105308.
llvm-svn: 105399
2010-06-03 18:28:31 +00:00
Nick Lewycky ca4180c92a Perfer !string.empty() over string != "".
llvm-svn: 105397
2010-06-03 17:13:23 +00:00
Benjamin Kramer 9f4ab44fe4 Forgot to update the most important part of the gtest modifications readme.
llvm-svn: 105396
2010-06-03 17:11:49 +00:00
Nick Lewycky 0ac5e2205c Whitespace cleanup.
llvm-svn: 105395
2010-06-03 17:10:17 +00:00
Benjamin Kramer 7cd082a7a3 Disable pthread support in googletest if llvm was configured without threads.
llvm-svn: 105390
2010-06-03 15:17:04 +00:00
Rafael Espindola 00121827b2 Don't preserve all symbols in a .so and instead trust gold to know what is
needed. The result is that now we are able to drop unnecessary symbol from
shared libraries.

llvm-svn: 105389
2010-06-03 14:45:44 +00:00
Bill Wendling f82aea634c Machine sink could potentially sink instructions into a block where the physical
registers it defines then interfere with an existing preg live range.

For instance, if we had something like these machine instructions:

BB#0
  ... = imul ... EFLAGS<imp-def,dead>
  test ..., EFLAGS<imp-def>
  jcc BB#2 EFLAGS<imp-use>

BB#1
  ... ; fallthrough to BB#2

BB#2
  ... ; No code that defines EFLAGS
  jcc ... EFLAGS<imp-use>

Machine sink will come along, see that imul implicitly defines EFLAGS, but
because it's "dead", it assumes that it can move imul into BB#2. But when it
does, imul's "dead" imp-def of EFLAGS is raised from the dead (a zombie) and
messes up the condition code for the jump (and pretty much anything else which
relies upon it being correct).

The solution is to know which pregs are live going into a basic block. However,
that information isn't calculated at this point. Nor does the LiveVariables pass
take into account non-allocatable physical registers. In lieu of this, we do a
*very* conservative pass through the basic block to determine if a preg is live
coming out of it.

llvm-svn: 105387
2010-06-03 07:54:20 +00:00
Benjamin Kramer 1add5f378d Turns out gtest still prefers the system <tr1/tuple> over it's own
implementation. Force the internal one to unbreak clang selfhost on linux.

llvm-svn: 105386
2010-06-03 07:51:58 +00:00
Eric Christopher b0e1a458ce Add first pass at darwin tls compiler support.
llvm-svn: 105381
2010-06-03 04:07:48 +00:00
Nate Begeman 11d56c55c4 arm_neon.h now makes it through clang and generates appropriate code for those functions which can use
generic vector operators rather than __builtin_neon_*

llvm-svn: 105380
2010-06-03 04:04:09 +00:00
Eric Christopher f67fe3b1e8 One underscore, not two.
llvm-svn: 105379
2010-06-03 04:02:59 +00:00
Eli Friedman dbbbf73c96 Implement expansion in type legalization for add/sub with overflow. The
expansion is the same as that used by LegalizeDAG.

The resulting code sucks in terms of performance/codesize on x86-32 for a
64-bit operation; I haven't looked into whether different expansions might be
better in general.

llvm-svn: 105378
2010-06-03 03:49:50 +00:00
Eli Friedman ceb13f2af3 Remove some already-fixed README entries.
llvm-svn: 105377
2010-06-03 01:47:31 +00:00
Eli Friedman a59b7a72b9 Remove README entry which no longer compiles to something sane.
llvm-svn: 105376
2010-06-03 01:16:51 +00:00
Eli Friedman 1f41303260 Remove a fixed item, update a couple partially-fixed items.
llvm-svn: 105375
2010-06-03 01:01:48 +00:00
Jakob Stoklund Olesen 4029596f93 Use the fast register allocator by default for -O0 builds.
This affects both llvm-gcc and clang.

llvm-svn: 105372
2010-06-03 00:39:06 +00:00
Jakob Stoklund Olesen 818e4df2b4 Use readsWritesVirtualRegister instead of counting uses and defs when inserting
spills and reloads.

This means that a partial define of a register causes a reload so the other
parts of the register are preserved.

The reload can be prevented by adding an <imp-def> operand for the full
register. This is already done by the coalescer and live interval analysis where
relevant.

llvm-svn: 105369
2010-06-03 00:07:47 +00:00
Jakob Stoklund Olesen 42c642cd24 Add full register <imp-def> operands when the coalescer is creating partial
register updates.

These operands tell the spiller that the other parts of the partially defined
register are don't-care, and a reload is not necessary.

llvm-svn: 105361
2010-06-02 23:22:11 +00:00
Devang Patel df84e8baf7 Speedup bitcode writer. Do not walk all values for all functions to emit function local metadata. In one testcase, probably worst case scenario, the 70x speed up is seen.
llvm-svn: 105360
2010-06-02 23:05:04 +00:00
Bill Wendling 7ee730eb40 Compulsive reformating. No functionalitical changes.
llvm-svn: 105359
2010-06-02 23:04:26 +00:00
Jakob Stoklund Olesen a8ad97743d Slightly change the meaning of the reMaterialize target hook when the original
instruction defines subregisters.

Any existing subreg indices on the original instruction are preserved or
composed with the new subreg index.

Also substitute multiple operands mentioning the original register by using the
new MachineInstr::substituteRegister() function. This is necessary because there
will soon be <imp-def> operands added to non read-modify-write partial
definitions. This instruction:

  %reg1234:foo = FLAP %reg1234<imp-def>

will reMaterialize(%reg3333, bar) like this:

  %reg3333:bar-foo = FLAP %reg333:bar<imp-def>

Finally, replace the TargetRegisterInfo pointer argument with a reference to
indicate that it cannot be NULL.

llvm-svn: 105358
2010-06-02 22:47:25 +00:00
Benjamin Kramer 9cb0274182 Update Readme and Makefiles for the new gtest.
llvm-svn: 105355
2010-06-02 22:02:57 +00:00
Benjamin Kramer bfb492d6c8 Merge gtest-1.5.0.
llvm-svn: 105354
2010-06-02 22:02:30 +00:00
Benjamin Kramer 78b6a290cb Merge gtest-1.4.0.
llvm-svn: 105353
2010-06-02 22:02:11 +00:00
Benjamin Kramer f2f402059f Merge gtest-1.3.0.
OSX users: make sure that CrashReporter is disabled when running unit tests.
Death tests are enabled now so you'll get a ton of message boxes.

llvm-svn: 105352
2010-06-02 22:01:25 +00:00
Jim Grosbach 84511e1526 Clean up 80 column violations. No functional change.
llvm-svn: 105350
2010-06-02 21:53:11 +00:00
Nate Begeman 7db953e396 arm_neon.h emitter now mostly complete for the purposes of initial testing.
llvm-svn: 105349
2010-06-02 21:53:00 +00:00
Rafael Espindola f2dffcef82 Remove the TargetRegisterClass member from CalleeSavedInfo
llvm-svn: 105344
2010-06-02 20:02:30 +00:00
Eli Friedman 6e3d5af945 Fix comment so it doesn't include comments which are irrelevant to the x86
backend.  Add a FIXME noting what can be fixed here.

llvm-svn: 105342
2010-06-02 19:35:46 +00:00
Dan Gohman a690618c58 Use comments to document non-obvious code rather than
mailing list archives.

llvm-svn: 105341
2010-06-02 19:13:40 +00:00
Devang Patel c2254f6b98 Skip identical instruction while calculating DBG_VALUE range.
llvm-svn: 105340
2010-06-02 19:05:13 +00:00
Bob Wilson 2d35a9e810 Rename canCombinedSubRegIndex method to something more grammatically correct
and tidy up the comment describing it.

llvm-svn: 105339
2010-06-02 18:54:47 +00:00
Rafael Espindola 94801a47f8 Replace ARM's getCalleeSavedRegClasses with a simpler solution
llvm-svn: 105335
2010-06-02 17:54:50 +00:00
Jim Grosbach fd00a43f89 remove trailing whitespace
llvm-svn: 105333
2010-06-02 17:45:54 +00:00
Devang Patel 21ccf05b4c Use local small vector.
llvm-svn: 105332
2010-06-02 16:42:51 +00:00
Rafael Espindola 7881a64a50 Remove unused function.
llvm-svn: 105325
2010-06-02 15:44:20 +00:00
Jim Grosbach 848548300d Not all entries in the range will have an SUnit. Check for that when looking
for debug information.

llvm-svn: 105324
2010-06-02 15:29:36 +00:00
Rafael Espindola 598342accf Update the documentation, getCalleeSavedRegClasses is not required anymore.
llvm-svn: 105323
2010-06-02 14:03:11 +00:00
Rafael Espindola ef2b6ce00a cleanup
llvm-svn: 105322
2010-06-02 13:53:17 +00:00
Rafael Espindola c08ecba597 Remove uses of getCalleeSavedRegClasses from outside the
backends and removes the virtual declaration. With that out of the way
I should be able to cleanup one backend at a time.

llvm-svn: 105321
2010-06-02 12:39:06 +00:00
Duncan Sands 9242162bb1 Pacify recent gcc: remove a pointless const qualifier.
llvm-svn: 105318
2010-06-02 08:37:30 +00:00
Nate Begeman 68d0518b92 Checkpoint; handle 'int' and 'void' correctly
llvm-svn: 105316
2010-06-02 07:14:28 +00:00
Nate Begeman d86d60f91d Emit full function prototypes. Definitions & typedefs to come.
llvm-svn: 105315
2010-06-02 06:17:19 +00:00
Evan Cheng a2da22734f Enable machine cse of instructions which define physical registers.
llvm-svn: 105308
2010-06-02 01:08:27 +00:00
Nate Begeman 469bb2be2c Checkpoint arm_neon.h generation with tablegen
llvm-svn: 105307
2010-06-02 00:34:55 +00:00
Eli Friedman 526e6d045f Don't try to custom-lower 64-bit add-with-overflow and friends on x86-32; the
x86 backend currently doesn't know how to handle them.

This doesn't really fix anything because LegalizeTypes doesn't know how to
handle them either.  We do get a better error message, though.

llvm-svn: 105305
2010-06-02 00:27:18 +00:00
Bob Wilson f4a34b97b8 Fix an obvious mistake: don't change the operands until all of them have been
checked and it is safe to proceed with the changes.

llvm-svn: 105304
2010-06-02 00:16:08 +00:00
Eli Friedman 6382c9c681 Remove outdated README entries.
llvm-svn: 105303
2010-06-02 00:10:36 +00:00
Jim Grosbach 12ac8f0352 Update debug information when breaking anti-dependencies. rdar://7759363
llvm-svn: 105300
2010-06-01 23:48:44 +00:00
Alexis Hunt 6e1690bdd8 Fix comment
llvm-svn: 105297
2010-06-01 23:29:39 +00:00
Devang Patel 89f2db6b67 DwarfWrite is now smart enough to drop debug value pointing to undefined register. Update this test to avoid this.
iSel not properly lowring argument into a well formed DBG_VALUE in some cases is a separate issue and not related to the test in this testcase.

llvm-svn: 105295
2010-06-01 23:01:43 +00:00
Jakob Stoklund Olesen 7b0ac865a4 Properly compose subregister indices when coalescing.
The comment about ordering of subreg indices is no longer true.
This exposed a bug in the new substVirtReg method that is also fixed.

llvm-svn: 105294
2010-06-01 22:39:25 +00:00
Jim Grosbach 5ba76b94f8 Remove unused code
llvm-svn: 105293
2010-06-01 21:56:30 +00:00
Devang Patel d43e0ca916 Ignore line number of debug value in undefined register.
llvm-svn: 105292
2010-06-01 21:43:09 +00:00
Jim Grosbach 0e20dc5cd6 fix think-o
llvm-svn: 105291
2010-06-01 21:35:50 +00:00
Dan Gohman 47a0724425 Fix the allocation of shadow space for the Win64 calling convention
in X86FastISel. Patch by Jan Sjodin.

llvm-svn: 105290
2010-06-01 21:09:47 +00:00
Jim Grosbach b69c68742a Simplify things a bit more. Fix prototype to use SmallVectorImpl and
change a few SmallVectors to vanilla C arrays.

llvm-svn: 105289
2010-06-01 21:06:46 +00:00
Dan Gohman 49a372cebc Fix the noalias checking so that it doesn't worry about
an argument aliasing itself. Thanks Duncan!

llvm-svn: 105288
2010-06-01 20:51:40 +00:00
Devang Patel b0c76394a3 Keep track of incoming debug value of unused argument.
Radar 7927666.

llvm-svn: 105285
2010-06-01 19:59:01 +00:00
Dan Gohman b782caa393 Fill in missing support for ISD::FEXP, ISD::FPOWI, and friends.
llvm-svn: 105283
2010-06-01 18:35:14 +00:00
Jim Grosbach b24d5c6ce2 Add a FIXME
llvm-svn: 105282
2010-06-01 18:06:35 +00:00
Jim Grosbach a37af16221 mirror of r105280 changes for LowerInvoke, which uses the same basic logic here
llvm-svn: 105281
2010-06-01 18:04:56 +00:00
Jim Grosbach 74d8345512 When processing function arguments when splitting live ranges across invokes,
handle structs passed by value via an extract/insert pair, as a bitcast
won't work on a struct. rdar://7742824

llvm-svn: 105280
2010-06-01 18:04:09 +00:00
Jim Grosbach 7352167560 Use SmallVector instead of std::vector.
llvm-svn: 105279
2010-06-01 17:56:41 +00:00
Dan Gohman bf821b9e9d Delete unused variables (that weren't even getting expanded).
llvm-svn: 105278
2010-06-01 17:26:14 +00:00
Dan Gohman 1ce7a559c0 Freebsd's sed doesn't support \< in regexps, and GNU sed doesn't
support [[:<:]]. Use beginning-of-line and end-of-line anchors
instead.

llvm-svn: 105277
2010-06-01 17:08:56 +00:00
Bruno Cardoso Lopes d44677ba69 Refactor some SSE 2 unpack instructions
llvm-svn: 105276
2010-06-01 17:02:50 +00:00
Dan Gohman a76715fc88 Don't call flush() at a library level which isn't checking for errors
and doesn't know where the output is going.

llvm-svn: 105274
2010-06-01 16:31:34 +00:00
Dan Gohman c699831d09 Fix a spello affecting platforms where the configure check fails.
llvm-svn: 105273
2010-06-01 16:22:27 +00:00
Dan Gohman 5eb929388c Fix a typo in a comment.
llvm-svn: 105272
2010-06-01 16:10:08 +00:00
Dan Gohman b7edb4287b -retain-symbols-file is not what it seems. Update the makefiles
and configury to use --version-script.

llvm-svn: 105271
2010-06-01 14:56:56 +00:00
Dan Gohman 88337a95ca Fix extra fread after EOF, non-wires-crossed version.
llvm-svn: 105270
2010-06-01 14:09:29 +00:00
Kalle Raiskila 8916358f97 Fix handling of 'load' nodes.
llvm-svn: 105269
2010-06-01 13:34:47 +00:00
Bill Wendling 1a764f93a0 Debreak test for non-Darwin.
llvm-svn: 105257
2010-05-31 21:47:24 +00:00
Duncan Sands 4c904fa797 Fix PR7272: when inlining through a callsite with byval arguments,
the newly created allocas may be used by inlined calls, so these
need to have their tail call flags cleared.  Fixes PR7272.

llvm-svn: 105255
2010-05-31 21:00:26 +00:00
Eric Christopher 24efc63000 Add a test for the llvm-gcc commit in r90200.
llvm-svn: 105253
2010-05-31 20:39:10 +00:00
Chris Lattner 14c46517b5 fix PR6623: when optimizing for size, don't inline memcpy/memsets
that are too large.  This causes the freebsd bootloader to be too
large apparently.

It's unclear if this should be an -Os or -Oz thing.  Thoughts welcome.

llvm-svn: 105228
2010-05-31 17:30:14 +00:00
Chris Lattner 291a189cda upgrade and filecheckize this test.
llvm-svn: 105227
2010-05-31 17:27:17 +00:00
Chris Lattner b4a773b452 the 'limit' argument to FindOptimalMemOpLowering is unsigned, not uint64_t.
llvm-svn: 105226
2010-05-31 17:12:23 +00:00