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Author SHA1 Message Date
Benjamin Kramer
3db5296619 DAGCombiner: Deduplicate code. 
llvm-svn: 148217
 2012-01-15 11:50:43 +00:00
Stepan Dyatkovskiy
2e727a1727 Cosmetic patch for r148215. 
llvm-svn: 148216
 2012-01-15 09:45:11 +00:00
Stepan Dyatkovskiy
d7b16b0e44 Fixup for r148132. Type replacement for LoopsProperties: from DenseMap to std::map, since we need to keep a valid pointer to properties of current loop. 
Message for r148132:
LoopUnswitch: All helper data that is collected during loop-unswitch iterations was moved to separated class (LUAnalysisCache).

llvm-svn: 148215
 2012-01-15 09:44:07 +00:00
Chandler Carruth
7ee4fa971b Relax the FileCheck assertion a bit -- all we really care about is that 
we're loading from the global array, not how it is spelled in the asm.
This should fix the MSVC bots.

llvm-svn: 148214
 2012-01-15 09:38:59 +00:00
Chandler Carruth
e57b0f2a8b FileCheck-ize a test, make it more specific to directly test the shift 
removal desired.

llvm-svn: 148213
 2012-01-15 09:32:57 +00:00
Chandler Carruth
d328cc2c87 Remove SetWorkingDirectory from the Process interface. Nothing in LLVM 
or Clang is using this, and it would be hard to use it correctly given
the thread hostility of the function. Also, it never checked the return
which is rather dangerous with chdir. If someone was in fact using this,
please let me know, as well as what the usecase actually is so that
I can add it back and make it more correct and secure to use. (That
said, it's never going to be "safe" per-se, but we could at least
document the risks...)

llvm-svn: 148211
 2012-01-15 08:41:35 +00:00
David Blaikie
e3b1a7c2d7 Remove dead code. 
llvm-svn: 148206
 2012-01-15 01:09:13 +00:00
Craig Topper
7380799e4a Truncate of undef is just undef of smaller size. 
llvm-svn: 148205
 2012-01-15 01:05:11 +00:00
Craig Topper
0c4ab86d2c Fix the memop type on a couple 256-bit AVX instructions that were using f128mem instead of f256mem. 
llvm-svn: 148196
 2012-01-14 18:29:57 +00:00
Craig Topper
ddc2e1091e Add a bunch of AVX instructions to the folding tables. Also fixed the alignment on 256-bit AVX2 instructions. 
llvm-svn: 148194
 2012-01-14 18:14:53 +00:00
Duncan Sands
96dee83647 Speculatively revert commit 148175 (rafael), to see if this fixes 
non-determinism in the 32 bit dragonegg buildbot.  Original commit
message:
Only emit the Leh_func_endN symbol when needed.

llvm-svn: 148191
 2012-01-14 17:16:48 +00:00
Andrew Trick
071cb0a076 Fix a corner case hit by redundant phi elimination running after LSR. 
Fixes PR11761: bad IR w/ redundant Phi elim

llvm-svn: 148177
 2012-01-14 03:17:23 +00:00
Rafael Espindola
a4e515db51 Only emit the Leh_func_endN symbol when needed. 
llvm-svn: 148175
 2012-01-14 02:36:51 +00:00
Andrew Trick
4bf8728f07 misched: Initial code for building an MI level scheduling DAG 
llvm-svn: 148174
 2012-01-14 02:17:18 +00:00
Andrew Trick
dcb9435036 Move physreg dependency generation into aptly named addPhysRegDeps. 
llvm-svn: 148173
 2012-01-14 02:17:15 +00:00
Andrew Trick
1fd0adb573 misched: Added ScheduleDAGInstrs::IsPostRA 
llvm-svn: 148172
 2012-01-14 02:17:12 +00:00
Andrew Trick
6b08526310 misched: Invoke the DAG builder on each sequence of schedulable instructions. 
llvm-svn: 148171
 2012-01-14 02:17:09 +00:00
Andrew Trick
ce507adb56 Move things around to make the file navigable, even though it will probably be split up later. 
llvm-svn: 148170
 2012-01-14 02:17:06 +00:00
Evan Cheng
c0e7b19ff0 After r147827 and r147902, it's now possible for unallocatable registers to be 
live across BBs before register allocation. This miscompiled 197.parser
when a cmp + b are optimized to a cbnz instruction even though the CPSR def
is live-in a successor.
        cbnz    r6, LBB89_12
...
LBB89_12:
        ble     LBB89_1

The fix consists of two parts. 1) Teach LiveVariables that some unallocatable
registers might be liveouts so don't mark their last use as kill if they are.
2) ARM constantpool island pass shouldn't form cbz / cbnz if the conditional
branch does not kill CPSR.

rdar://10676853

llvm-svn: 148168
 2012-01-14 01:53:46 +00:00
Chad Rosier
4a705ae81a Fix pasto from r146196. 
llvm-svn: 148167
 2012-01-14 01:50:21 +00:00
Chad Rosier
b4f2ccc1e0 Cleanup test case by adding checks for test names. 
llvm-svn: 148166
 2012-01-14 01:46:51 +00:00
Jakob Stoklund Olesen
742b6d295b Add TRI::getCallPreservedMask() hook. 
The hook returns a bit-mask of call-preserved registers that will
eventually replace the current list of implicit defs on call
instructions.  This will make it possible to support multiple calling
conventions without duplicating call instruction descriptors.

The call-preserved mask is slightly different from the list returned by
the getCalleeSavedRegs() hook, it includes all aliases that are
preserved by calls.

The hook takes a CallingConv::ID argument instead of a MachineFunction
pointer, so it can provide information about calls to extern functions,
and even indirect function calls.

TRI::getCalleeSavedRegs() returns information about the function
currently being compiled. TRI::getCallPreservedMask() returns
information about the functions it is calling.

llvm-svn: 148165
 2012-01-14 01:45:25 +00:00
Dan Gohman
4539e2a975 Fix an unused variable warning that Chad noticed. 
llvm-svn: 148164
 2012-01-14 00:47:44 +00:00
Rafael Espindola
551f422d34 Add a test showing how the Leh_func_endN symbol is used. 
llvm-svn: 148161
 2012-01-14 00:12:59 +00:00
Rafael Espindola
2b55c13cf1 Remove previous commit while I debug the bot failures. 
llvm-svn: 148156
 2012-01-13 23:28:50 +00:00
Jakob Stoklund Olesen
b1f7df8d8b Use RegisterTuples to generate pseudo-registers. 
The QQ and QQQQ registers are not 'real', they are pseudo-registers used
to model some vld and vst instructions.

This makes the call clobber lists longer, but I intend to get rid of
those soon.

llvm-svn: 148151
 2012-01-13 22:55:42 +00:00
Rafael Espindola
3a35eeb0aa Remove label that is not used anymore. 
llvm-svn: 148150
 2012-01-13 22:41:58 +00:00
Eli Friedman
a70048903b Speculatively revert r148132+r148133 to try and fix a buildbot failure. 
llvm-svn: 148149
 2012-01-13 22:34:39 +00:00
Jakob Stoklund Olesen
c477c8d35e Skip the NAME field when forming tuples. 
llvm-svn: 148147
 2012-01-13 22:23:50 +00:00
Andrew Trick
796cca6eff Remove pointless mode line in .cpp file. 
llvm-svn: 148143
 2012-01-13 22:04:16 +00:00
Duncan Sands
5a44c5a303 Try to clarify a little how exception handling works. 
llvm-svn: 148136
 2012-01-13 19:59:16 +00:00
Devang Patel
410d6214f9 Revert r148131, it was committed before it was ready. 
llvm-svn: 148134
 2012-01-13 19:28:58 +00:00
Stepan Dyatkovskiy
81514d2471 Cosmetic patch for r148132. 
llvm-svn: 148133
 2012-01-13 19:27:22 +00:00
Stepan Dyatkovskiy
94682abb75 LoopUnswitch: All helper data that is collected during loop-unswitch iterations was moved to separated class (LUAnalysisCache). 
llvm-svn: 148132
 2012-01-13 19:13:54 +00:00
Devang Patel
194ad5ead8 Refactor. 
llvm-svn: 148131
 2012-01-13 19:12:18 +00:00
Devang Patel
79b7ed0c82 Add new test. 
llvm-svn: 148128
 2012-01-13 18:45:31 +00:00
Pete Cooper
f70959894c Fixed comment. Thanks Duncan! 
llvm-svn: 148123
 2012-01-13 17:52:01 +00:00
Craig Topper
c1e3d46e07 Convert SHUFPD with the same register for both sources to PSHUFD if it would prevent a register copy. Similar to SHUFPS, but requires the mask to be converted. 
llvm-svn: 148112
 2012-01-13 09:21:41 +00:00
Craig Topper
e75115a861 use v8i32 as optimal mem type over v8f32 if AVX2 is enabled. Similar to SSE2 vs SSE1. 
llvm-svn: 148109
 2012-01-13 08:32:21 +00:00
Craig Topper
e52c0484de Make X86 instruction selection use 256-bit VPXOR for build_vector of all ones if AVX2 is enabled. This gives the ExeDepsFix pass a chance to choose FP vs int as appropriate. Also use v8i32 as the type for getZeroVector if AVX2 is enabled. This is consistent with SSE2 using prefering v4i32. 
llvm-svn: 148108
 2012-01-13 08:12:35 +00:00
NAKAMURA Takumi
4282fcb731 test/CodeGen/ARM/test-sharedidx.ll: Fix for -Asserts. 
llvm-svn: 148107
 2012-01-13 07:03:55 +00:00
Craig Topper
71ea42cc29 Add patterns for v16i16 and v32i8 immAllZerosV to select VPXOR to match v4i64 and v8i32. 
llvm-svn: 148106
 2012-01-13 06:59:47 +00:00
Andrew Trick
85c44d1485 Added the MachineSchedulerPass skeleton. 
llvm-svn: 148105
 2012-01-13 06:30:30 +00:00
Andrew Trick
6e61e9f2b6 whitespace 
llvm-svn: 148104
 2012-01-13 06:30:25 +00:00
Andrew Trick
97340838f5 wrong filename 
llvm-svn: 148103
 2012-01-13 06:30:22 +00:00
Andrew Trick
117f29f574 80-col violation 
llvm-svn: 148102
 2012-01-13 06:30:19 +00:00
Craig Topper
0e34a8e58c Use 8i32 constant pool entry for converting AVX2_SETALLONES. Possibly fixes PR11750. 
llvm-svn: 148101
 2012-01-13 06:12:41 +00:00
Craig Topper
32812741b7 Fix typo in PerformAddCombine that caused any vector type to be checked for horizontal add/sub if AVX2 is enabled. This caused an assert to fail for non 128/256-bit vectors when done before type legalizing. Fixes PR11749. 
llvm-svn: 148096
 2012-01-13 05:04:25 +00:00
Jakob Stoklund Olesen
9ba097a208 Delete CodeInit and CodeRecTy from TableGen. 
The code type was always identical to a string anyway. Now it is simply
a synonym. The code literal syntax [{...}] is still valid.

llvm-svn: 148092
 2012-01-13 03:38:34 +00:00
Jakob Stoklund Olesen
3776477761 Use uniqued StringInit pointers for lookups. 
This avoids a gazillion StringMap and dynamic_cast calls, making
TableGen run 3x faster.

llvm-svn: 148091
 2012-01-13 03:16:35 +00:00