oota-llvm.git
11 years agoSparc: When storing 0, use %g0 directly in the store instruction instead of
Venkatraman Govindaraju [Mon, 3 Jun 2013 00:21:54 +0000 (00:21 +0000)]
Sparc: When storing 0, use %g0 directly in the store instruction instead of
       using two instructions (sethi and store).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183090 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSparc: Combine add/or/sethi instruction with restore if possible.
Venkatraman Govindaraju [Sun, 2 Jun 2013 21:48:17 +0000 (21:48 +0000)]
Sparc: Combine add/or/sethi instruction with restore if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183088 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[Object/COFF] Add dos_header, pe32{,plus}_header and data_directory.
Rui Ueyama [Sun, 2 Jun 2013 21:08:45 +0000 (21:08 +0000)]
[Object/COFF] Add dos_header, pe32{,plus}_header and data_directory.

Reviewers: Bigcheese

CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D905

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183087 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoWhitespace.
Jim Grosbach [Sun, 2 Jun 2013 19:51:54 +0000 (19:51 +0000)]
Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183086 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSparc: Perform leaf procedure optimization by default
Venkatraman Govindaraju [Sun, 2 Jun 2013 02:24:27 +0000 (02:24 +0000)]
Sparc: Perform leaf procedure optimization by default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183083 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTry to avoid "integer literal too big" warnings from older GCCs.
Benjamin Kramer [Sat, 1 Jun 2013 22:29:41 +0000 (22:29 +0000)]
Try to avoid "integer literal too big" warnings from older GCCs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183081 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoWhen determining the new index for an insertelement, we may not assume that an
Nick Lewycky [Sat, 1 Jun 2013 20:51:31 +0000 (20:51 +0000)]
When determining the new index for an insertelement, we may not assume that an
index greater than the size of the vector is invalid. The shuffle may be
shrinking the size of the vector. Fixes a crash!

Also drop the maximum recursion depth of the safety check for this
optimization to five.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183080 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSparc: Mark functions calling llvm.vastart and llvm.returnaddress intrinsics as non...
Venkatraman Govindaraju [Sat, 1 Jun 2013 20:42:48 +0000 (20:42 +0000)]
Sparc: Mark functions calling llvm.vastart and llvm.returnaddress intrinsics as non-leaf functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183079 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplifyCFG: Fix typo in comment for ComputeSpeculationCost
David Majnemer [Sat, 1 Jun 2013 19:43:23 +0000 (19:43 +0000)]
SimplifyCFG: Fix typo in comment for ComputeSpeculationCost

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183078 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMove getRealLinkageName to a common place and remove all the duplicates of it.
Benjamin Kramer [Sat, 1 Jun 2013 17:51:14 +0000 (17:51 +0000)]
Move getRealLinkageName to a common place and remove all the duplicates of it.

Also simplify code a bit while there. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183076 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMove object construction into [] so the temporary can be moved.
Benjamin Kramer [Sat, 1 Jun 2013 17:51:03 +0000 (17:51 +0000)]
Move object construction into [] so the temporary can be moved.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183075 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDenseMap: Move the key into place when we use the move version of operator[].
Benjamin Kramer [Sat, 1 Jun 2013 16:37:55 +0000 (16:37 +0000)]
DenseMap: Move the key into place when we use the move version of operator[].

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183074 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAPInt: Simplify code. No functionality change.
Benjamin Kramer [Sat, 1 Jun 2013 11:26:39 +0000 (11:26 +0000)]
APInt: Simplify code. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183073 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAPFloat: Use isDenormal instead of hand-rolled code to check for denormals.
Benjamin Kramer [Sat, 1 Jun 2013 11:26:33 +0000 (11:26 +0000)]
APFloat: Use isDenormal instead of hand-rolled code to check for denormals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183072 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDisable new legacy JIT test on ARM.
Tim Northover [Sat, 1 Jun 2013 10:24:11 +0000 (10:24 +0000)]
Disable new legacy JIT test on ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183071 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert r183069: "TMP: LEA64_32r fixing"
Tim Northover [Sat, 1 Jun 2013 10:23:46 +0000 (10:23 +0000)]
Revert r183069: "TMP: LEA64_32r fixing"

Very sorry, it was committed from the wrong branch by mistake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183070 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTMP: LEA64_32r fixing
Tim Northover [Sat, 1 Jun 2013 10:21:54 +0000 (10:21 +0000)]
TMP: LEA64_32r fixing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183069 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: change MOV64ri64i32 into MOV32ri64
Tim Northover [Sat, 1 Jun 2013 09:55:14 +0000 (09:55 +0000)]
X86: change MOV64ri64i32 into MOV32ri64

The MOV64ri64i32 instruction required hacky MCInst lowering because it
was allocated as setting a GR64, but the eventual instruction ("movl")
only set a GR32. This converts it into a so-called "MOV32ri64" which
still accepts a (appropriate) 64-bit immediate but defines a GR32.
This is then converted to the full GR64 by a SUBREG_TO_REG operation,
thus keeping everyone happy.

This fixes a typo in the opcode field of the original patch, which
should make the legact JIT work again (& adds test for that problem).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183068 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[Sparc] Generate correct code for leaf functions with stack objects
Venkatraman Govindaraju [Sat, 1 Jun 2013 04:51:18 +0000 (04:51 +0000)]
[Sparc] Generate correct code for leaf functions with stack objects

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183067 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemoved a comment above an include which is unnecessary and added a missing closing...
Michael Gottesman [Sat, 1 Jun 2013 00:48:24 +0000 (00:48 +0000)]
Removed a comment above an include which is unnecessary and added a missing closing @} for a doxygen comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183065 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdded method comments for getZero,getInf.
Michael Gottesman [Sat, 1 Jun 2013 00:44:29 +0000 (00:44 +0000)]
Added method comments for getZero,getInf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183064 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUpdated APFloat's comments to fit the LLVM style guide.
Michael Gottesman [Sat, 1 Jun 2013 00:44:05 +0000 (00:44 +0000)]
Updated APFloat's comments to fit the LLVM style guide.

Also added a few more method comments and performed some copy editing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183063 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake SubRegIndex size mandatory, following r183020.
Ahmed Bougacha [Fri, 31 May 2013 23:45:26 +0000 (23:45 +0000)]
Make SubRegIndex size mandatory, following r183020.

This also makes TableGen able to compute sizes/offsets of synthesized
indices representing tuples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183061 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPrevent loop-unroll from making assumptions about undefined behavior.
Andrew Trick [Fri, 31 May 2013 23:34:46 +0000 (23:34 +0000)]
Prevent loop-unroll from making assumptions about undefined behavior.

Fixes rdar:14036816, PR16130.

There is an opportunity to compute precise trip counts for 'or'
expressions and multi-exit loops.
rdar:14038809: Optimize trip count computation for multi-exit loops.

To do this we need to record the fact that ExitLimit assumes NSW. When
it does not we can safely assume that the loop trip count is the
minimum ExitLimt across all subexpressions and loop exits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183060 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTemporarily Revert "X86: change MOV64ri64i32 into MOV32ri64" as it
Eric Christopher [Fri, 31 May 2013 23:30:45 +0000 (23:30 +0000)]
Temporarily Revert "X86: change MOV64ri64i32 into MOV32ri64" as it
seems to have caused PR16192 and other JIT related failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183059 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConst-ify some printing and dumping code for DIEValues.
Eric Christopher [Fri, 31 May 2013 22:50:40 +0000 (22:50 +0000)]
Const-ify some printing and dumping code for DIEValues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183057 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for adding the contents of a StringRef to the MD5 hash.
Eric Christopher [Fri, 31 May 2013 22:34:56 +0000 (22:34 +0000)]
Add support for adding the contents of a StringRef to the MD5 hash.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183054 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConvert more unsigned char -> uint8_t.
Eric Christopher [Fri, 31 May 2013 22:34:52 +0000 (22:34 +0000)]
Convert more unsigned char -> uint8_t.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183053 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix comment.
Eric Christopher [Fri, 31 May 2013 22:34:48 +0000 (22:34 +0000)]
Fix comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183052 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMove "unsigned char" -> "uint8_t".
Eric Christopher [Fri, 31 May 2013 22:34:34 +0000 (22:34 +0000)]
Move "unsigned char" -> "uint8_t".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183051 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLoopVectorize: Change API call to get the backedge taken count
Arnold Schwaighofer [Fri, 31 May 2013 21:48:56 +0000 (21:48 +0000)]
LoopVectorize: Change API call to get the backedge taken count

Use ScalarEvolution's getBackedgeTakenCount API instead of getExitCount since
that is really what we want to know. Using the more specific getExitCount was
safe because we made sure that there is only one exiting block.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183047 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLoop Strength Reduce: Scaling factor cost.
Quentin Colombet [Fri, 31 May 2013 21:29:03 +0000 (21:29 +0000)]
Loop Strength Reduce: Scaling factor cost.

Account for the cost of scaling factor in Loop Strength Reduce when rating the
formulae. This uses a target hook.

The default implementation of the hook is: if the addressing mode is legal, the
scaling factor is free.

<rdar://problem/13806271>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183045 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse just a ArrayRef<uint8_t> to store both hex string and binary data.
Rafael Espindola [Fri, 31 May 2013 21:03:51 +0000 (21:03 +0000)]
Use just a ArrayRef<uint8_t> to store both hex string and binary data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183043 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRename COFFYaml.h to COFFYAML.h for consistency.
Rafael Espindola [Fri, 31 May 2013 20:38:27 +0000 (20:38 +0000)]
Rename COFFYaml.h to COFFYAML.h for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183042 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove union to fix build in c++03.
Rafael Espindola [Fri, 31 May 2013 20:35:58 +0000 (20:35 +0000)]
Remove union to fix build in c++03.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183041 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDon't allocate temporary string for section data.
Rafael Espindola [Fri, 31 May 2013 20:26:44 +0000 (20:26 +0000)]
Don't allocate temporary string for section data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183040 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLoopVectorize: PHIs with only outside users should prevent vectorization
Arnold Schwaighofer [Fri, 31 May 2013 19:53:50 +0000 (19:53 +0000)]
LoopVectorize: PHIs with only outside users should prevent vectorization

We check that instructions in the loop don't have outside users (except if
they are reduction values). Unfortunately, we skipped this check for
if-convertable PHIs.

Fixes PR16184.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183035 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoNVPTX: Don't even create a regalloc if we're not going to use it.
Benjamin Kramer [Fri, 31 May 2013 19:21:58 +0000 (19:21 +0000)]
NVPTX: Don't even create a regalloc if we're not going to use it.

Fixes a leak found by valgrind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183031 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[APFloat] Added a unittest for APFloat::getZero.
Michael Gottesman [Fri, 31 May 2013 18:43:34 +0000 (18:43 +0000)]
[APFloat] Added a unittest for APFloat::getZero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183028 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoModify how the formulae are rated in Loop Strength Reduce.
Quentin Colombet [Fri, 31 May 2013 17:20:29 +0000 (17:20 +0000)]
Modify how the formulae are rated in Loop Strength Reduce.
Namely, check if the target allows to fold more that one register in the
addressing mode and if yes, adjust the cost accordingly.

Prior to this commit, reg1 + scale * reg2 accesses were artificially preferred
to reg1 + reg2 accesses. Indeed, the cost model wrongly assumed that reg1 + reg2
needs a temporary register for the computation, whereas it was correctly
estimated for reg1 + scale * reg2.

<rdar://problem/13973908>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183021 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a way to define the bit range covered by a SubRegIndex.
Ahmed Bougacha [Fri, 31 May 2013 17:08:36 +0000 (17:08 +0000)]
Add a way to define the bit range covered by a SubRegIndex.

NOTE: If this broke your out-of-tree backend, in *RegisterInfo.td, change
the instances of SubRegIndex that have a comps template arg to use the
ComposedSubRegIndex class instead.

In TableGen land, this adds Size and Offset attributes to SubRegIndex,
and the ComposedSubRegIndex class, for which the Size and Offset are
computed by TableGen. This also adds an accessor in MCRegisterInfo, and
Size/Offsets for the X86 and ARM subreg indices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183020 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUnit test for SCEV fix r182989, PR16130.
Andrew Trick [Fri, 31 May 2013 16:42:41 +0000 (16:42 +0000)]
Unit test for SCEV fix r182989, PR16130.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183017 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove useless code from transitioning to new EH scheme
Kai Nacke [Fri, 31 May 2013 16:30:36 +0000 (16:30 +0000)]
Remove useless code from transitioning to new EH scheme

Removes all uses of the variable UsesNewEH. Simply return false in case that no
resume instructions were found.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183016 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoARM: permit upper-case BE/LE on setend instruction
Tim Northover [Fri, 31 May 2013 15:58:45 +0000 (15:58 +0000)]
ARM: permit upper-case BE/LE on setend instruction

Patch by Amaury de la Vieuville.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183012 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoARM: add fstmx and fldmx instructions for assembly
Tim Northover [Fri, 31 May 2013 15:55:51 +0000 (15:55 +0000)]
ARM: add fstmx and fldmx instructions for assembly

These instructions are deprecated oddities, but we still need to be able to
disassemble (and reassemble) them if and when they're encountered.

Patch by Amaury de la Vieuville.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183011 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify multiplications by vectors whose elements are powers of 2.
Rafael Espindola [Fri, 31 May 2013 14:27:15 +0000 (14:27 +0000)]
Simplify multiplications by vectors whose elements are powers of 2.

Patch by Andrea Di Biagio.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183005 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoARM: fix VEXT encoding corner case
Tim Northover [Fri, 31 May 2013 13:47:25 +0000 (13:47 +0000)]
ARM: fix VEXT encoding corner case

The disassembly of VEXT instructions was too lax in the bits checked. This
fixes the case where the instruction affects Q-registers but a misaligned lane
was specified (should be UNDEFINED).

Patch by Amaury de la Vieuville

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183003 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[SystemZ] Don't use LOAD and STORE REVERSED for volatile accesses
Richard Sandiford [Fri, 31 May 2013 13:25:22 +0000 (13:25 +0000)]
[SystemZ] Don't use LOAD and STORE REVERSED for volatile accesses

Unlike most -- hopefully "all other", but I'm still checking -- memory
instructions we support, LOAD REVERSED and STORE REVERSED may access
the memory location several times.  This means that they are not suitable
for volatile loads and stores.

This patch is a prerequisite for better atomic load and store support.
The same principle applies there: almost all memory instructions we
support are inherently atomic ("block concurrent"), but LOAD REVERSED
and STORE REVERSED are exceptions.

Other instructions continue to allow volatile operands.  I will add
positive "allows volatile" tests at the same time as the "allows atomic
load or store" tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183002 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[NVPTX] Re-enable support for virtual registers in the final output
Justin Holewinski [Fri, 31 May 2013 12:14:49 +0000 (12:14 +0000)]
[NVPTX] Re-enable support for virtual registers in the final output

Now that 3.3 is branched, we are re-enabling virtual registers to help
iron out bugs before the next release. Some of the post-RA passes do
not play well with virtual registers, so we disable them for now. The
needed functionality of the PrologEpilogInserter pass is copied to a
new backend-specific NVPTXPrologEpilog pass.

The test for this commit is not breaking the existing tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182998 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[msan] Handle mixed track-origins and keep-going settings (llvm part).
Evgeniy Stepanov [Fri, 31 May 2013 12:04:29 +0000 (12:04 +0000)]
[msan] Handle mixed track-origins and keep-going settings (llvm part).

Before this change, each module defined a weak_odr global __msan_track_origins
with a value of 1 if origin tracking is enabled, 0 if disabled. If there are
modules with different values, any of them may win. If 0 wins, and there is at
least one module with 1, the program will most likely crash.

With this change, __msan_track_origins is only emitted if origin tracking is
on. Then runtime library detects if there is at least one module with origin
tracking, and enables runtime support for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182997 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: change MOV64ri64i32 into MOV32ri64
Tim Northover [Fri, 31 May 2013 09:57:13 +0000 (09:57 +0000)]
X86: change MOV64ri64i32 into MOV32ri64

The MOV64ri64i32 instruction required hacky MCInst lowering because it was
allocated as setting a GR64, but the eventual instruction ("movl") only set a
GR32. This converts it into a so-called "MOV32ri64" which still accepts a
(appropriate) 64-bit immediate but defines a GR32. This is then converted to
the full GR64 by a SUBREG_TO_REG operation, thus keeping everyone happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182991 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd links to the System z architecture manual and ABI
Richard Sandiford [Fri, 31 May 2013 09:14:54 +0000 (09:14 +0000)]
Add links to the System z architecture manual and ABI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182990 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix ScalarEvolution::ComputeExitLimitFromCond for 'or' conditions.
Andrew Trick [Fri, 31 May 2013 06:43:25 +0000 (06:43 +0000)]
Fix ScalarEvolution::ComputeExitLimitFromCond for 'or' conditions.

Fixes PR16130 - clang produces incorrect code with loop/expression at -O2.

This is a 2+ year old bug that's now holding up the release. It's a
case where we knowingly made aggressive assumptions about undefined
behavior. These assumptions are wrong when SCEV is computing a
subexpression that does not directly control the branch. With this
fix, we avoid making assumptions in those cases but still optimize the
common case. SCEV's trip count computation for exits controlled by
'or' expressions is now analagous to the trip count computation for
loops with multiple exits. I had already fixed the multiple exit case
to be conservative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182989 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[mips] Big-endian code generation for atomic instructions.
Akira Hatanaka [Fri, 31 May 2013 03:25:44 +0000 (03:25 +0000)]
[mips] Big-endian code generation for atomic instructions.

Patch by Jyun-Yan You.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182984 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix wrong comment. Null is not acceptable.
Matt Arsenault [Fri, 31 May 2013 01:40:30 +0000 (01:40 +0000)]
Fix wrong comment. Null is not acceptable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182979 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoReapply with r182909 with a fix to the calculation of the new indices for
Nick Lewycky [Fri, 31 May 2013 00:59:42 +0000 (00:59 +0000)]
Reapply with r182909 with a fix to the calculation of the new indices for
insertelement instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182976 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove debug print added in r182949.
Ahmed Bougacha [Thu, 30 May 2013 23:46:47 +0000 (23:46 +0000)]
Remove debug print added in r182949.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182973 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert r182937 and r182877.
Rafael Espindola [Thu, 30 May 2013 20:37:52 +0000 (20:37 +0000)]
Revert r182937 and r182877.

r182877 broke MCJIT tests on ARM and r182937 was working around another failure
by r182877.

This should make the ARM bots green.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182960 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove unused member.
Rafael Espindola [Thu, 30 May 2013 20:19:35 +0000 (20:19 +0000)]
Remove unused member.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182958 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix a couple of typos and 80-col.
Eric Christopher [Thu, 30 May 2013 18:59:11 +0000 (18:59 +0000)]
Fix a couple of typos and 80-col.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182954 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse the const_cast only where necessary.
Bill Wendling [Thu, 30 May 2013 18:52:57 +0000 (18:52 +0000)]
Use the const_cast only where necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182950 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMCObjectSymbolizer: Switch from IntervalMap to sorted vector, following r182625.
Ahmed Bougacha [Thu, 30 May 2013 18:18:36 +0000 (18:18 +0000)]
MCObjectSymbolizer: Switch from IntervalMap to sorted vector, following r182625.

This removes the need for the missing SectionRef operator< workaround, and fixes
an IntervalMap assert about alignment on MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182949 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoImplement IEEE-754R 2008 nextUp/nextDown functions in the guise of the function APFlo...
Michael Gottesman [Thu, 30 May 2013 18:07:13 +0000 (18:07 +0000)]
Implement IEEE-754R 2008 nextUp/nextDown functions in the guise of the function APFloat::next(bool nextDown).

rdar://13852078

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182945 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix warning and resulting formatting issue.
Paul Redmond [Thu, 30 May 2013 17:24:32 +0000 (17:24 +0000)]
Fix warning and resulting formatting issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182939 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevise llvm.vectorizer.width documentation
Paul Redmond [Thu, 30 May 2013 17:22:46 +0000 (17:22 +0000)]
Revise llvm.vectorizer.width documentation

- clarify that vectorizer.width only applies if the vectorizer decides to
  vectorize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182938 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDon't use fast isel on this test.
Rafael Espindola [Thu, 30 May 2013 16:29:28 +0000 (16:29 +0000)]
Don't use fast isel on this test.

This fixes the test on ARM. Looks like it was broken by r182877. Not
sure if this is a bug on fast isel on ARM, but this should help fix
the ARM bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182937 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoForce a triple so we don't get bitten by windows' different regalloc.
Benjamin Kramer [Thu, 30 May 2013 15:39:35 +0000 (15:39 +0000)]
Force a triple so we don't get bitten by windows' different regalloc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182935 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoForce fragile test to the atom scheduler model.
Benjamin Kramer [Thu, 30 May 2013 15:22:28 +0000 (15:22 +0000)]
Force fragile test to the atom scheduler model.

The pattern the test originally checked for doesn't occur on other -mcpu
settings. On atom it's still there though slightly differently scheduled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182933 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdded a sub-project status update section to the release notes with details
Ashok Thirumurthi [Thu, 30 May 2013 14:23:07 +0000 (14:23 +0000)]
Added a sub-project status update section to the release notes with details
on the LLDB 3.3 release.

Reviewed by: Greg Clayton and Bill Wendling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182931 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: allow registers 8-15 in test
Tim Northover [Thu, 30 May 2013 13:56:32 +0000 (13:56 +0000)]
X86: allow registers 8-15 in test

This test was failing on some hosts when an unexpected register was used for a
variable. This just extends the regexp to allow the new x86-64 registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182929 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: use sub-register sequences for MOV*r0 operations
Tim Northover [Thu, 30 May 2013 13:19:42 +0000 (13:19 +0000)]
X86: use sub-register sequences for MOV*r0 operations

Instead of having a bunch of separate MOV8r0, MOV16r0, ... pseudo-instructions,
it's better to use a single MOV32r0 (which will expand to "xorl %reg, %reg")
and obtain other sizes with EXTRACT_SUBREG and SUBREG_TO_REG. The encoding is
smaller and partial register updates can sometimes be avoided.

Until recently, this sequence was a barrier to rematerialization though. That
should now be fixed so it's an appropriate time to make the change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182928 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix incorrect parameter name in LIT docs.
Sergey Matveev [Thu, 30 May 2013 12:37:52 +0000 (12:37 +0000)]
Fix incorrect parameter name in LIT docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182926 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix rematerialization into physical registers.
Tim Northover [Thu, 30 May 2013 12:30:50 +0000 (12:30 +0000)]
Fix rematerialization into physical registers.

r182872 introduced a bug in how the register-coalescer's rematerialization
handled defining a physical register. It relied on the output of the
coalescer's setRegisters method to determine whether the replacement
instruction needed an implicit-def. However, this value isn't necessarily the
same as the CopyMI's actual destination register which is what the rest of the
basic-block expects us to be defining.

The commit changes the rematerializer to use the actual register attached to
CopyMI in its decision.

This will be tested soon by an X86 patch which moves everything to using
MOV32r0 instead of other sizes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182925 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[NVPTX] Fix case where a sext load of an i1 type may produce an
Justin Holewinski [Thu, 30 May 2013 12:22:39 +0000 (12:22 +0000)]
[NVPTX] Fix case where a sext load of an i1 type may produce an
ld.u1 instead of an ld.u8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182924 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: change zext moves to use sub-register infrastructure.
Tim Northover [Thu, 30 May 2013 10:43:18 +0000 (10:43 +0000)]
X86: change zext moves to use sub-register infrastructure.

32-bit writes on amd64 zero out the high bits of the corresponding 64-bit
register. LLVM makes use of this for zero-extension, but until now relied on
custom MCLowering and other code to fixup instructions. Now we have proper
handling of sub-registers, this can be done by creating SUBREG_TO_REG
instructions at selection-time.

Should be no change in functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182921 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[SystemZ] Enable unaligned accesses
Richard Sandiford [Thu, 30 May 2013 09:45:42 +0000 (09:45 +0000)]
[SystemZ] Enable unaligned accesses

The code to distinguish between unaligned and aligned addresses was
already there, so this is mostly just a switch-on-and-test process.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182920 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRevert r182909.
Evgeniy Stepanov [Thu, 30 May 2013 09:40:17 +0000 (09:40 +0000)]
Revert r182909.

PR/16177

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182919 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix warning on varialbe unused in opt builds.
Daniel Jasper [Thu, 30 May 2013 07:01:43 +0000 (07:01 +0000)]
Fix warning on varialbe unused in opt builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182914 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFixed bug when tests in executable partially used absolute paths.
Galina Kistanova [Thu, 30 May 2013 04:56:28 +0000 (04:56 +0000)]
Fixed bug when tests in executable partially used absolute paths.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182910 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSwizzle vector inputs if it helps us eliminate shuffles.
Nick Lewycky [Thu, 30 May 2013 04:33:38 +0000 (04:33 +0000)]
Swizzle vector inputs if it helps us eliminate shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182909 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoChange how we iterate over relocations on ELF.
Rafael Espindola [Thu, 30 May 2013 03:05:14 +0000 (03:05 +0000)]
Change how we iterate over relocations on ELF.

For COFF and MachO, sections semantically have relocations that apply to them.
That is not the case on ELF.

In relocatable objects (.o), a section with relocations in ELF has offsets to
another section where the relocations should be applied.

In dynamic objects and executables, relocations don't have an offset, they have
a virtual address. The section sh_info may or may not point to another section,
but that is not actually used for resolving the relocations.

This patch exposes that in the ObjectFile API. It has the following advantages:

* Most (all?) clients can handle this more efficiently. They will normally walk
all relocations, so doing an effort to iterate in a particular order doesn't
save time.

* llvm-readobj now prints relocations in the same way the native readelf does.

* probably most important, relocations that don't point to any section are now
visible. This is the case of relocations in the rela.dyn section. See the
updated relocation-executable.test for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182908 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRename variable to be more descriptive.
Eric Christopher [Thu, 30 May 2013 00:43:35 +0000 (00:43 +0000)]
Rename variable to be more descriptive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182903 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFormatting.
Eric Christopher [Thu, 30 May 2013 00:43:32 +0000 (00:43 +0000)]
Formatting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182902 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoReformat comments here.
Eric Christopher [Thu, 30 May 2013 00:43:30 +0000 (00:43 +0000)]
Reformat comments here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182901 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a comment and some tests including the NULL byte.
Eric Christopher [Thu, 30 May 2013 00:43:26 +0000 (00:43 +0000)]
Add a comment and some tests including the NULL byte.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182900 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoThis testcase tests command line attributes which we don't yet support.
Bill Wendling [Thu, 30 May 2013 00:32:04 +0000 (00:32 +0000)]
This testcase tests command line attributes which we don't yet support.

In fact, we're probably going to support these flags in completely different
ways. So this test is no longer valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182899 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove dead return.
Rafael Espindola [Thu, 30 May 2013 00:29:46 +0000 (00:29 +0000)]
Remove dead return.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182898 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdded a unittest for APFloat::getSmallestNormalized.
Michael Gottesman [Thu, 30 May 2013 00:18:47 +0000 (00:18 +0000)]
Added a unittest for APFloat::getSmallestNormalized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182897 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdded code to the unittest for APFloat::getSmallest to double check that we consider...
Michael Gottesman [Thu, 30 May 2013 00:18:44 +0000 (00:18 +0000)]
Added code to the unittest for APFloat::getSmallest to double check that we consider the result to be denormal.

I additionally changed certain checks to use EXPECT_FALSE instead of a boolean
complement with EXPECT_TRUE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182896 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a unittest for APFloat::getSmallest.
Michael Gottesman [Wed, 29 May 2013 23:58:29 +0000 (23:58 +0000)]
Add a unittest for APFloat::getSmallest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182894 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOrder CALLSEQ_START and CALLSEQ_END nodes.
Andrew Trick [Wed, 29 May 2013 22:03:55 +0000 (22:03 +0000)]
Order CALLSEQ_START and CALLSEQ_END nodes.

Fixes PR16146: gdb.base__call-ar-st.exp fails after
pre-RA-sched=source fixes.

Patch by Xiaoyi Guo!

This also fixes an unsupported dbg.value test case. Codegen was
previously incorrect but the test was passing by luck.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182885 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoX86: Fix Defs/Uses for insts that imp-def/imp-use both an A-register and EFLAGS.
Ahmed Bougacha [Wed, 29 May 2013 21:13:57 +0000 (21:13 +0000)]
X86: Fix Defs/Uses for insts that imp-def/imp-use both an A-register and EFLAGS.

This corrects a problem where x86 instructions that implicitly define/use both
an A-register (RAX, EAX, ..) and EFLAGS were declared as only defining/using
EFLAGS, because the outer "let Defs/Uses = [EFLAGS]" in the various multiclasses
overrides the "let Defs/Uses = [areg]" in BinOpAI.

The instructions deriving from BinOpAI were moved out of the "let Defs", and a
BinOpAI_FF class was created, for instructions that implicitly define and use
EFLAGS and the A-register (SBC, ADC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182883 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDon't assume the registers will be enumerated sequentially.
Chad Rosier [Wed, 29 May 2013 20:42:21 +0000 (20:42 +0000)]
Don't assume the registers will be enumerated sequentially.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182879 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd colored diagnostics when building LLVM with cmake + ninja + clang
Arnaud A. de Grandmaison [Wed, 29 May 2013 20:41:35 +0000 (20:41 +0000)]
Add colored diagnostics when building LLVM with cmake + ninja + clang

When invoked from Ninja, clang does not detect that it can use colors : see https://github.com/martine/ninja/issues/174

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182878 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEnable FastISel on ARM for Linux and NaCl
JF Bastien [Wed, 29 May 2013 20:38:10 +0000 (20:38 +0000)]
Enable FastISel on ARM for Linux and NaCl

FastISel was only enabled for iOS ARM and Thumb2, this patch enables it
for ARM (not Thumb2) on Linux and NaCl.

Thumb2 support needs a bit more work, mainly around register class
restrictions.

The patch punts to SelectionDAG when doing TLS relocation on non-Darwin
targets. I will fix this and other FastISel-to-SelectionDAG failures in
a separate patch.

The patch also forces FastISel to retain frame pointers: iOS always
keeps them for backtracking (so emitted code won't change because of
this), but Linux was getting much worse code that was incorrect when
using big frames (such as test-suite's lencod). I'll also fix this in a
later patch, it will probably require a peephole so that FastISel
doesn't rematerialize frame pointers back-to-back.

The test changes are straightforward, similar to:
  http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130513/174279.html
They also add a vararg test that got dropped in that change.

I ran all of test-suite on A15 hardware with --optimize-option=-O0 and
all the tests pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182877 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDon't reach into the middle of TargetMachine and cache one of its ivars.
Bill Wendling [Wed, 29 May 2013 20:37:19 +0000 (20:37 +0000)]
Don't reach into the middle of TargetMachine and cache one of its ivars.
Not only does this break encapsulation, it's gross.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182876 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTeach ReMaterialization to be more cunning about subregisters
Tim Northover [Wed, 29 May 2013 19:32:06 +0000 (19:32 +0000)]
Teach ReMaterialization to be more cunning about subregisters

This allows rematerialization during register coalescing to handle
more cases involving operations like SUBREG_TO_REG which might need to
be rematerialized using sub-register indices.

For example, code like:
    v1(GPR64):sub_32 = MOVZ something
    v2(GPR64) = COPY v1(GPR64)
should be convertable to:
    v2(GPR64):sub_32 = MOVZ something

but previously we just gave up in places like this

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182872 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify logic by using the appropriate functions.
Adrian Prantl [Wed, 29 May 2013 17:33:31 +0000 (17:33 +0000)]
Simplify logic by using the appropriate functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182869 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLTO+Debug Info: revert r182791.
Manman Ren [Wed, 29 May 2013 17:16:59 +0000 (17:16 +0000)]
LTO+Debug Info: revert r182791.

Since the testing case uses ref_addr, which requires version 3+ to work,
we will solve the dwarf version issue first.

This patch also causes failures in one of the bots. I will update the patch
accordingly in my next attempt.

rdar://13926659

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182867 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTidy some register classes for ARM and Thumb
JF Bastien [Wed, 29 May 2013 15:45:47 +0000 (15:45 +0000)]
Tidy some register classes for ARM and Thumb

Tidy up three places where the register class for ARM and Thumb wasn't
restrictive enough:
 - No PC dest for reg-reg add/orr/sub.
 - No PC dest for shifts.
 - No PC or SP for Thumb2 reg-imm add.

I encountered this while combining FastISel with
-verify-machineinstrs. These instructions defined registers whose
classes weren't restrictive enough, and the uses failed
verification. They're also undefined in the ISA, or would produce code
that FastISel wouldn't want. This doesn't fix the register class
narrowing issue (where uses should restrict definitions), and isn't
thorough, but it's a small step in the right direction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182863 91177308-0d34-0410-b5e6-96231b3b80d8