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Author SHA1 Message Date
Rafael Espindola
ffbd9ee39f Add support for getting the last modification time from a file_status. 
Use that in llvm-ar.cpp to replace a use of sys::PathWithStatus.

llvm-svn: 184450
 2013-06-20 18:42:04 +00:00
Nadav Rotem
9191086b4b Clang-format the SLP vectorizer. No functionality change. 
llvm-svn: 184446
 2013-06-20 17:54:36 +00:00
Joey Gouly
a600985f50 This reverts r155000. 
The cdp2 instruction should have the same restrictions as cdp on the
co-processor registers.

VFP instructions on v8/AArch32 share the same encoding space as cdp2.

llvm-svn: 184445
 2013-06-20 17:42:36 +00:00
Nadav Rotem
83cdea61cd SLPVectorization: Add a basic support for cross-basic block slp vectorization. 
We collect gather sequences when we vectorize basic blocks. Gather sequences are excellent
hints for vectorization of other basic blocks.

llvm-svn: 184444
 2013-06-20 17:41:45 +00:00
Ulrich Weigand
502b057268 [PowerPC] Remove unused parameter 
The isDarwin parameter to the llvm::LowerPPCMachineInstrToMCInst
routine is now no longer needed; remove it.

llvm-svn: 184441
 2013-06-20 16:58:14 +00:00
Nadav Rotem
b87c78377e Change the debug type to match the debug type that is used by vecutils.cpp. 
This change makes it easier to filter debug messages.

llvm-svn: 184440
 2013-06-20 16:38:05 +00:00
Ulrich Weigand
4cd8a01569 [PowerPC] Add missing build dependency 
This (hopefully) fixes build failures resulting from r184436;
the PowerPC asm parser now depends on PowerPC target expresssions.

llvm-svn: 184439
 2013-06-20 16:38:00 +00:00
Ulrich Weigand
8c70d558d3 [MC] Support @ variants with directional labels 
The assembler parser common code supports recognizing symbol variants
using the @ modifer.  On PowerPC, it should also be possible to use
(some of) those modifiers with directional labels, like "1f@l".

This patch adds support for accepting symbol variants on directional
labels as well.

llvm-svn: 184437
 2013-06-20 16:24:17 +00:00
Ulrich Weigand
99f0423d50 [PowerPC] Optimize @ha/@l constructs 
This patch adds support for having the assembler optimize fixups
to constructs like "symbol@ha" or "symbol@l" if "symbol" can be
resolved at assembler time.

This optimization is already present in the PPCMCExpr.cpp code
for handling PPC_HA16/PPC_LO16 target expressions.  However,
those target expression were used only on Darwin targets.

This patch changes target expression code so that they are
usable also with the GNU assembler (using the @ha / @l syntax
instead of the ha16() / lo16() syntax), and changes the
MCInst lowering code to generate those target expressions
where appropriate.

It also changes the asm parser to generate HA16/LO16 target
expressions when parsing assembler source that uses the
@ha / @l modifiers.  The effect is that now the above-
mentioned optimization automatically becomes available
for those situations too.
 

llvm-svn: 184436
 2013-06-20 16:23:52 +00:00
Ulrich Weigand
e143b13aca [PowerPC] Support compare mnemonics with implied CR0 
Just like for branch mnemonics (where support was recently added), the
assembler is supposed to support extended mnemonics for the compare
instructions where no condition register is specified explicitly
(and CR0 is assumed implicitly).

This patch adds support for those extended compare mnemonics.


Index: llvm-head/test/MC/PowerPC/ppc64-encoding-ext.s
===================================================================
--- llvm-head.orig/test/MC/PowerPC/ppc64-encoding-ext.s
+++ llvm-head/test/MC/PowerPC/ppc64-encoding-ext.s
@@ -449,21 +449,37 @@
 
 # CHECK: cmpdi 2, 3, 128                 # encoding: [0x2d,0x23,0x00,0x80]
          cmpdi 2, 3, 128
+# CHECK: cmpdi 0, 3, 128                 # encoding: [0x2c,0x23,0x00,0x80]
+         cmpdi 3, 128
 # CHECK: cmpd 2, 3, 4                    # encoding: [0x7d,0x23,0x20,0x00]
          cmpd 2, 3, 4
+# CHECK: cmpd 0, 3, 4                    # encoding: [0x7c,0x23,0x20,0x00]
+         cmpd 3, 4
 # CHECK: cmpldi 2, 3, 128                # encoding: [0x29,0x23,0x00,0x80]
          cmpldi 2, 3, 128
+# CHECK: cmpldi 0, 3, 128                # encoding: [0x28,0x23,0x00,0x80]
+         cmpldi 3, 128
 # CHECK: cmpld 2, 3, 4                   # encoding: [0x7d,0x23,0x20,0x40]
          cmpld 2, 3, 4
+# CHECK: cmpld 0, 3, 4                   # encoding: [0x7c,0x23,0x20,0x40]
+         cmpld 3, 4
 
 # CHECK: cmpwi 2, 3, 128                 # encoding: [0x2d,0x03,0x00,0x80]
          cmpwi 2, 3, 128
+# CHECK: cmpwi 0, 3, 128                 # encoding: [0x2c,0x03,0x00,0x80]
+         cmpwi 3, 128
 # CHECK: cmpw 2, 3, 4                    # encoding: [0x7d,0x03,0x20,0x00]
          cmpw 2, 3, 4
+# CHECK: cmpw 0, 3, 4                    # encoding: [0x7c,0x03,0x20,0x00]
+         cmpw 3, 4
 # CHECK: cmplwi 2, 3, 128                # encoding: [0x29,0x03,0x00,0x80]
          cmplwi 2, 3, 128
+# CHECK: cmplwi 0, 3, 128                # encoding: [0x28,0x03,0x00,0x80]
+         cmplwi 3, 128
 # CHECK: cmplw 2, 3, 4                   # encoding: [0x7d,0x03,0x20,0x40]
          cmplw 2, 3, 4
+# CHECK: cmplw 0, 3, 4                   # encoding: [0x7c,0x03,0x20,0x40]
+         cmplw 3, 4
 
 # FIXME: Trap mnemonics
 
Index: llvm-head/lib/Target/PowerPC/PPCInstrInfo.td
===================================================================
--- llvm-head.orig/lib/Target/PowerPC/PPCInstrInfo.td
+++ llvm-head/lib/Target/PowerPC/PPCInstrInfo.td
@@ -2201,3 +2201,12 @@ defm : BranchExtendedMnemonic<"ne", 68>;
 defm : BranchExtendedMnemonic<"nu", 100>;
 defm : BranchExtendedMnemonic<"ns", 100>;
 
+def : InstAlias<"cmpwi $rA, $imm", (CMPWI CR0, gprc:$rA, s16imm:$imm)>;
+def : InstAlias<"cmpw $rA, $rB", (CMPW CR0, gprc:$rA, gprc:$rB)>;
+def : InstAlias<"cmplwi $rA, $imm", (CMPLWI CR0, gprc:$rA, u16imm:$imm)>;
+def : InstAlias<"cmplw $rA, $rB", (CMPLW CR0, gprc:$rA, gprc:$rB)>;
+def : InstAlias<"cmpdi $rA, $imm", (CMPDI CR0, g8rc:$rA, s16imm:$imm)>;
+def : InstAlias<"cmpd $rA, $rB", (CMPD CR0, g8rc:$rA, g8rc:$rB)>;
+def : InstAlias<"cmpldi $rA, $imm", (CMPLDI CR0, g8rc:$rA, u16imm:$imm)>;
+def : InstAlias<"cmpld $rA, $rB", (CMPLD CR0, g8rc:$rA, g8rc:$rB)>;
+

llvm-svn: 184435
 2013-06-20 16:15:12 +00:00
Evgeniy Stepanov
be5fa31841 Fix get_magic() handling of short reads. 
PR16389

llvm-svn: 184434
 2013-06-20 15:56:05 +00:00
Rafael Espindola
dc37cdb22d Rename fs::GetUniqueID to fs::getUniqueID to match the style guide. 
llvm-svn: 184431
 2013-06-20 15:06:35 +00:00
Evgeniy Stepanov
0d9af4e442 Remove MSan hack that is no longer needed. 
llvm-svn: 184428
 2013-06-20 14:19:10 +00:00
Vladimir Medic
af5979fc83 Optimize register parsing for MipsAsmParser. Allow symbolic aliases for FPU registers. 
llvm-svn: 184411
 2013-06-20 11:21:49 +00:00
David Blaikie
e21853eb2f DebugInfo: don't use location lists when the location covers the whole function anyway 
Fix up three tests - one that was relying on abbreviation number,
another relying on a location list in this case (& testing raw asm,
changed that to use dwarfdump on the debug_info now that that's where
the location is), and another which was added in r184368 - exposing a
bug in that fix that is exposed when we emit the location inline rather
than through a location list. Fix that bug while I'm here.

llvm-svn: 184387
 2013-06-20 00:25:24 +00:00
Argyrios Kyrtzidis
5fc60f0cfb [Support/CrashRecoveryContext] Make sure CrashRecoveryContext does not clear the thread-local "CurrentContext" 
in the "parent" thread, when we are using CrashRecoveryContext::RunSafelyOnThread.

When using CrashRecoveryContext::RunSafelyOnThread, we would set a CrashRecoveryContextImpl* to a thread-local variable
for the "child" thread, but CrashRecoveryContext would erroneously clear it in the "parent" thread.

The result was that if CrashRecoveryContext::RunSafelyOnThread was called again in the "child" thread it would mess up
crash-recovery for its parent.

A test for this will be added in the clang repository.
rdar://14204560

llvm-svn: 184380
 2013-06-19 22:53:45 +00:00
Bill Wendling
f3befd916e This is now a duplicate. 
llvm-svn: 184376
 2013-06-19 22:16:33 +00:00
Bill Wendling
3cff8f16d4 Make the comparison operators non-member functions. 
llvm-svn: 184373
 2013-06-19 22:09:25 +00:00
Bill Wendling
49f45f9861 Don't pass in the TargetInstrInfo into the register info object. It doesn't use it. 
llvm-svn: 184369
 2013-06-19 21:59:00 +00:00
David Blaikie
c3cec14be6 DebugInfo: PR14763/r183329 correct the location of indirect parameters 
We had been papering over a problem with location info for non-trivial
types passed by value by emitting their type as references (this caused
the debugger to interpret the location information correctly, but broke
the type of the function). r183329 corrected the type information but
lead to the debugger interpreting the pointer parameter as the value -
the debug info describing the location needed an extra dereference.

Use a new flag in DIVariable to add the extra indirection (either by
promoting an existing DW_OP_reg (parameter passed in a register) to
DW_OP_breg + 0 or by adding DW_OP_deref to an existing DW_OP_breg + n
(parameter passed on the stack).

llvm-svn: 184368
 2013-06-19 21:55:13 +00:00
David Blaikie
efeec21da2 Spell correct (s/begining/beginning/) 
llvm-svn: 184362
 2013-06-19 21:42:05 +00:00
David Blaikie
7637c0313e llvm-dwarfdump: Add support for dumping the .debug_loc section 
This is a basic implementation - we still don't have any support (that I
know of) for dumping DWARF expressions in a meaningful way, so the
location information itself is just printed as a sequence of bytes as we
do elsewhere.

llvm-svn: 184361
 2013-06-19 21:37:13 +00:00
Bill Wendling
a9576dc938 Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change. 
llvm-svn: 184360
 2013-06-19 21:36:55 +00:00
Ulrich Weigand
ef862011f0 [MC/DWARF] Generate multiple .debug_line entries for adjacent .loc directives 
The compiler occasionally generates multiple .loc directives in a row
(at the same instruction address).  These need to be transformed into
multple actual .debug_line table entries, since they are used to signal
certain information to the debugger (e.g. if the opening brace of a
function body is on the same line as the declaration).

The MCAsmStreamer version of EmitDwarfLocDirective handles this
correctly by emitting a .loc directive every time it is called.
However, the MCObjectStream version simply defaults to recording
the information and emitting only a single table entry later,
e.g. when EmitInstruction is called.

This patch introduces a MCAsmStreamer::EmitDwarfLocDirective
version that emits a line table entry for a .loc directive
that may already be pending before recording the new directive.
(This is similar to how this is handled in GNU as.)

With this patch (and the code alignment factor patch) applied,
I'm now getting identical DWARF .debug sections for all test-suite
object files on PowerPC for the internal and the external assembler.

llvm-svn: 184357
 2013-06-19 21:27:27 +00:00
Michael Gottesman
649738ce71 [APFloat] Converted all references to APFloat::isNormal => APFloat::isFiniteNonZero. 
Turns out all the references were in llvm and not in clang.

llvm-svn: 184356
 2013-06-19 21:23:18 +00:00
Bill Wendling
4d82ecded8 Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change. 
llvm-svn: 184352
 2013-06-19 21:07:11 +00:00
Aaron Ballman
406fa22a89 Modified the implementation of fs::GetUniqueID on Windows such that it actually finds a unique identifier for a file. Also adds unit tests for GetUniqueID. 
llvm-svn: 184351
 2013-06-19 21:03:50 +00:00
Bill Wendling
1919cdf3c7 Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change. 
llvm-svn: 184349
 2013-06-19 20:51:24 +00:00
Bill Wendling
dbd80b66e0 Don't cache the TLI object since we have access to it through TargetMachine already. 
llvm-svn: 184346
 2013-06-19 20:32:16 +00:00
Ahmed Bougacha
8596c56ff2 Allow creation of single-byte MCAtoms. 
llvm-svn: 184344
 2013-06-19 20:18:59 +00:00
Matt Arsenault
fb5518e48b Move StructurizeCFG out of R600 to generic Transforms. 
Register it with PassManager

llvm-svn: 184343
 2013-06-19 20:18:24 +00:00
Quentin Colombet
4633bd4a55 LSR: Fix the parameters used to compute the scaling factor cost. 
Prior to this change, the considered addressing modes may be invalid since the
maximum and minimum offsets were not taking into account.
This was causing an assertion failure.

The added test case exercices that behavior.

<rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal
addressing mode has an illegal cost!")

llvm-svn: 184341
 2013-06-19 19:59:41 +00:00
Nadav Rotem
a578c6d3ad SLPVectorizer: handle scalars that are extracted from vectors (using ExtractElementInst). 
llvm-svn: 184325
 2013-06-19 17:33:16 +00:00
Nadav Rotem
79be778ce2 SLPVectorizer: start constructing chains at stores that are not power of two. 
The type <3 x i8> is a common in graphics and we want to be able to vectorize it.

This changes accelerates bullet by 12% and 471_omnetpp by 5%.

llvm-svn: 184317
 2013-06-19 15:57:29 +00:00
Rafael Espindola
8db1ef8cde Remove Path::getDirectoryContents. 
llvm-svn: 184311
 2013-06-19 15:32:37 +00:00
Rafael Espindola
24a81dcac4 Remove Path::isObjectFile. 
llvm-svn: 184305
 2013-06-19 14:25:38 +00:00
Rafael Espindola
9f3be55a57 Remove Path::canExecute. 
llvm-svn: 184298
 2013-06-19 13:25:31 +00:00
Vladimir Medic
10551de6bd The RenderMethod field in RegisterOperand class sets the name of the method on the target specific operand to call to add the target specific operand to an MCInst. This patch defines RenderMethod for mips RegisterOperand classes and removes redundant code from MipsAsmParser.cpp 
llvm-svn: 184292
 2013-06-19 10:14:36 +00:00
NAKAMURA Takumi
e8b9470337 MachOUniversal.cpp: Fix abuse of Twine. It would be sufficient to use std::string instead. 
llvm-svn: 184291
 2013-06-19 09:55:05 +00:00
Michael Gottesman
f89e76a9ad Fixed comment typo that causes the given comment to actually make sense. 
llvm-svn: 184286
 2013-06-19 07:34:21 +00:00
Nadav Rotem
61c4560eab SLPVectorizer: vectorize compares and selects. 
llvm-svn: 184282
 2013-06-19 05:49:52 +00:00
Nadav Rotem
9accad7fa1 Document the return value and fix a typo. 
llvm-svn: 184281
 2013-06-19 05:47:33 +00:00
Sean Silva
a39ac0fdeb [yaml2obj][ELF] Support ELFOSABI_* enum. 
llvm-svn: 184268
 2013-06-19 00:55:28 +00:00
Sean Silva
c7a5f8cb18 [yaml2obj][ELF] Support st_info through Binding and Type YAML keys. 
llvm-svn: 184263
 2013-06-19 00:11:59 +00:00
Matt Arsenault
fac93f05f8 Use GetUnderlyingObject instead of custom function 
llvm-svn: 184261
 2013-06-18 23:37:58 +00:00
Sean Silva
beed0c8948 [yaml2obj][ELF] Rudimentary symbol table support. 
Currently, we only output the name.

llvm-svn: 184255
 2013-06-18 23:14:03 +00:00
Jim Grosbach
0f0c0ac8be ARM: Add optional datatype suffix to NEON mvn asm syntax. 
rdar://14194152

llvm-svn: 184244
 2013-06-18 21:49:21 +00:00
Bill Wendling
025f285316 We want a string representation of the attribute, not the kind as a string. 
llvm-svn: 184239
 2013-06-18 21:27:00 +00:00
Rafael Espindola
7250573745 Remove Path::canWrite. 
llvm-svn: 184235
 2013-06-18 21:10:03 +00:00
Rafael Espindola
40fa7cd224 Add a can_write function to PathV2. 
llvm-svn: 184233
 2013-06-18 20:56:38 +00:00