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Author SHA1 Message Date
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
0a090bf840 Remove the transitional GetUniqueID. 
llvm-svn: 184433
 2013-06-20 15:20:11 +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
Stefanus Du Toit
788cd80f4e Fix typos "metatadata" -> "metadata" in the LangRef. 
llvm-svn: 184426
 2013-06-20 14:02:44 +00:00
Rafael Espindola
902c5e858b Make sure ar is creating a new file instead of updating an existing one. 
Should fix the bots that are seeing a corrupted file from a previous run.

llvm-svn: 184424
 2013-06-20 13:44:49 +00:00
Rafael Espindola
57dc6d35a3 Add r184420 back, but also handle long file names. 
Original message:

Don't include directory names in archives.

This matches the behavior of both gnu and os x versions of ar.

llvm-svn: 184423
 2013-06-20 13:41:51 +00:00
Rafael Espindola
e6a5ece5c5 Revert "Don't include directory names in archives." 
This reverts commit 184420.
Investigating the bot failures.

llvm-svn: 184421
 2013-06-20 13:23:48 +00:00
Rafael Espindola
aebd457c8d Don't include directory names in archives. 
This matches the behavior of both gnu and os x versions of ar.

llvm-svn: 184420
 2013-06-20 13:16:44 +00:00
Rafael Espindola
0d52e64b86 Remove remaining bits of the old LLVM specific symtab handling. 
llvm-svn: 184418
 2013-06-20 13:00:30 +00:00
Rafael Espindola
293a58d01c Remove more unused functions. 
llvm-svn: 184416
 2013-06-20 12:45:47 +00:00
Rafael Espindola
734706c20b Remove unused methods. 
llvm-svn: 184415
 2013-06-20 12:42:00 +00:00
Rafael Espindola
b974bbf1d3 Use the simpler sys::fs::exists. 
llvm-svn: 184413
 2013-06-20 12:04:39 +00:00
Rafael Espindola
6c06452df3 Convert a use of sys::Path. 
llvm-svn: 184412
 2013-06-20 11:59:19 +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
Bill Wendling
8c54142599 Remove static, because it was messing everything up. 
llvm-svn: 184400
 2013-06-20 06:51:06 +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
8198c1328c Make the '==' operator inline. 
llvm-svn: 184375
 2013-06-19 22:16:11 +00:00
Bill Wendling
4e9d259a3d Make this static inline to avoid duplicates. 
llvm-svn: 184374
 2013-06-19 22:12:11 +00:00
Bill Wendling
3cff8f16d4 Make the comparison operators non-member functions. 
llvm-svn: 184373
 2013-06-19 22:09:25 +00:00
David Blaikie
abcbbb38cb Spelling correction 
llvm-svn: 184370
 2013-06-19 22:00:13 +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
Michael Gottesman
7af8cd5aad [APFloat] Changed APFloat::isNormal => APFloat::isFiniteNonZero for all tests in unittests. 
I forgot to to do this in r184356. The only references were in APFloatTest.cpp.

llvm-svn: 184366
 2013-06-19 21:53:45 +00:00
David Blaikie
2297416b7c DebugInfo: Specify that a value is stored indirectly 
This is a precursor to fix a regression caused by PR14763/r183329 where
the location of a non-trivial pass-by-value parameter ends up
incorrectly referring directly to the parameter (a pointer) rather than
the object pointed to by the pointer.

llvm-svn: 184365
 2013-06-19 21:52:48 +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
Rafael Espindola
80c176d465 Remove unused function. 
llvm-svn: 184359
 2013-06-19 21:33:52 +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
Rafael Espindola
0449fdea82 Really fix the missing header :-( 
llvm-svn: 184355
 2013-06-19 21:21:43 +00:00
Rafael Espindola
73c8999f27 Add missing include found by the bots. 
llvm-svn: 184354
 2013-06-19 21:20:41 +00:00
Rafael Espindola
a7d761d107 Remove last use of PathV1.h from Archive.h 
Store the individual fields we need instead of a sys::FileStatus.

llvm-svn: 184353
 2013-06-19 21:13:59 +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
Michael Gottesman
c82a0b3e6d [APFloat] Added isFiniteNonZero predicate. 
This is the first patch in a series of patches to rename isNormal =>
isFiniteNonZero and isIEEENormal => isNormal. In order to prevent careless
errors on my part the overall plan is:

1. Add the isFiniteNonZero predicate with tests. I can do this in a method
independent of isNormal. (This step is this patch).
2. Convert all references to isNormal with isFiniteNonZero. My plan is to
comment out isNormal locally and continually convert isNormal references =>
isFiniteNonZero until llvm/clang compiles.
3. Remove old isNormal and rename isIEEENormal to isNormal.
4. Look through all of said references from patch 2 and see if we can simplify
them by using the new isNormal.

llvm-svn: 184350
 2013-06-19 21:00:17 +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
10538a34d1 Add operator!= as the compliment to operator==. This is for a future change. 
llvm-svn: 184348
 2013-06-19 20:50:12 +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
Michael Gottesman
5ddf4e5f6f [APFloat] Expose isSmallest/isLargest as public methods. 
I have had several requests to expose these two methods as public for various
potential optimizations.

llvm-svn: 184345
 2013-06-19 20:31:54 +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
Bill Wendling
8d83852261 Add unit test to test a trivial verifier check. 
llvm-svn: 184338
 2013-06-19 19:26:44 +00:00
Rafael Espindola
360f929145 Always set the mode. 
This matches GNU ar behavior. Also remove the now unused getFileStatus method.
Not sure how to add a test, it would have to run ls -l or something like that.

llvm-svn: 184337
 2013-06-19 19:17:15 +00:00
Rafael Espindola
9cf9cbd80e Remove more uses of sys::Path. 
llvm-svn: 184328
 2013-06-19 17:49:07 +00:00