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Author SHA1 Message Date
Chandler Carruth
482e4a8711 FileCheck-ize a test, make it more specific to directly test the shift 
removal desired.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148213 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-15 09:32:57 +00:00
Chandler Carruth
4aab4ab340 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...)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148211 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-15 08:41:35 +00:00
David Blaikie
49c0a9ac98 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148206 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-15 01:09:13 +00:00
Craig Topper
799ea5ccc0 Truncate of undef is just undef of smaller size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148205 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-15 01:05:11 +00:00
Craig Topper
d07ef50ca1 Fix the memop type on a couple 256-bit AVX instructions that were using f128mem instead of f256mem. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148196 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 18:29:57 +00:00
Craig Topper
446626d236 Add a bunch of AVX instructions to the folding tables. Also fixed the alignment on 256-bit AVX2 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148194 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 18:14:53 +00:00
Duncan Sands
c464e998e6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148191 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 17:16:48 +00:00
Andrew Trick
dd1f22f25d Fix a corner case hit by redundant phi elimination running after LSR. 
Fixes PR11761: bad IR w/ redundant Phi elim


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148177 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 03:17:23 +00:00
Rafael Espindola
da22344804 Only emit the Leh_func_endN symbol when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148175 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 02:36:51 +00:00
Andrew Trick
3c58ba8ea7 misched: Initial code for building an MI level scheduling DAG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148174 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 02:17:18 +00:00
Andrew Trick
7ebcaf4cf9 Move physreg dependency generation into aptly named addPhysRegDeps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148173 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 02:17:15 +00:00
Andrew Trick
5e920d7c83 misched: Added ScheduleDAGInstrs::IsPostRA 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148172 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 02:17:12 +00:00
Andrew Trick
e9ef4ed13b misched: Invoke the DAG builder on each sequence of schedulable instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148171 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 02:17:09 +00:00
Andrew Trick
5edf2f03d5 Move things around to make the file navigable, even though it will probably be split up later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148170 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 02:17:06 +00:00
Evan Cheng
bfe8afaaec 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148168 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 01:53:46 +00:00
Chad Rosier
d32d3b758f Fix pasto from r146196. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148167 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 01:50:21 +00:00
Chad Rosier
4f00c08062 Cleanup test case by adding checks for test names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148166 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 01:46:51 +00:00
Jakob Stoklund Olesen
bd6dc3be1d 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148165 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 01:45:25 +00:00
Dan Gohman
92180988a4 Fix an unused variable warning that Chad noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148164 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 00:47:44 +00:00
Rafael Espindola
20fb487a62 Add a test showing how the Leh_func_endN symbol is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148161 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-14 00:12:59 +00:00
Rafael Espindola
54f7533e36 Remove previous commit while I debug the bot failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148156 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 23:28:50 +00:00
Jakob Stoklund Olesen
ece8b73eb2 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148151 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 22:55:42 +00:00
Rafael Espindola
cf05d03961 Remove label that is not used anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148150 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 22:41:58 +00:00
Eli Friedman
09a536a88b Speculatively revert r148132+r148133 to try and fix a buildbot failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148149 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 22:34:39 +00:00
Jakob Stoklund Olesen
794481d5ca Skip the NAME field when forming tuples. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148147 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 22:23:50 +00:00
Andrew Trick
23d1c5ce8a Remove pointless mode line in .cpp file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148143 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 22:04:16 +00:00
Duncan Sands
8d6796b796 Try to clarify a little how exception handling works. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148136 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 19:59:16 +00:00
Devang Patel
85d5aaecd0 Revert r148131, it was committed before it was ready. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148134 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 19:28:58 +00:00
Stepan Dyatkovskiy
5dab2bf293 Cosmetic patch for r148132. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148133 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 19:27:22 +00:00
Stepan Dyatkovskiy
a5a1e46d00 LoopUnswitch: All helper data that is collected during loop-unswitch iterations was moved to separated class (LUAnalysisCache). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148132 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 19:13:54 +00:00
Devang Patel
c798cc4283 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148131 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 19:12:18 +00:00
Devang Patel
4a5c0fd70e Add new test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148128 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 18:45:31 +00:00
Pete Cooper
0f3023c180 Fixed comment. Thanks Duncan! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148123 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 17:52:01 +00:00
Craig Topper
0518970dc8 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148112 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 09:21:41 +00:00
Craig Topper
562659ff6b use v8i32 as optimal mem type over v8f32 if AVX2 is enabled. Similar to SSE2 vs SSE1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148109 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 08:32:21 +00:00
Craig Topper
12216172c0 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148108 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 08:12:35 +00:00
NAKAMURA Takumi
db080e814f test/CodeGen/ARM/test-sharedidx.ll: Fix for -Asserts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148107 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 07:03:55 +00:00
Craig Topper
c30432ab57 Add patterns for v16i16 and v32i8 immAllZerosV to select VPXOR to match v4i64 and v8i32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148106 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 06:59:47 +00:00
Andrew Trick
96f678f2d7 Added the MachineSchedulerPass skeleton. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148105 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 06:30:30 +00:00
Andrew Trick
b3fe88f837 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148104 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 06:30:25 +00:00
Andrew Trick
524ff020f3 wrong filename 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148103 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 06:30:22 +00:00
Andrew Trick
07680ec7a1 80-col violation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148102 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 06:30:19 +00:00
Craig Topper
b9c7f652d7 Use 8i32 constant pool entry for converting AVX2_SETALLONES. Possibly fixes PR11750. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148101 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 06:12:41 +00:00
Craig Topper
e6cf4a070d 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148096 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 05:04:25 +00:00
Jakob Stoklund Olesen
8dd6f0c835 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148092 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 03:38:34 +00:00
Jakob Stoklund Olesen
ebaf92c67d Use uniqued StringInit pointers for lookups. 
This avoids a gazillion StringMap and dynamic_cast calls, making
TableGen run 3x faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148091 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 03:16:35 +00:00
Evan Cheng
c4b527ac06 DAGCombine's logic for forming pre- and post- indexed loads / stores were being 
overly conservative. It was concerned about cases where it would prohibit
folding simple [r, c] addressing modes. e.g.
  ldr r0, [r2]
  ldr r1, [r2, #4]
=>
  ldr r0, [r2], #4
  ldr r1, [r2]
Change the logic to look for such cases which allows it to form indexed memory
ops more aggressively.

rdar://10674430


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148086 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 01:37:24 +00:00
Bill Wendling
b4ee5168ab Fix off-by-one error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148077 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 00:41:53 +00:00
Dan Gohman
79522dc569 Implement proper ObjC ARC objc_retainBlock "escape" analysis, so that 
the optimizer doesn't eliminate objc_retainBlock calls which are needed
for their side effect of copying blocks onto the heap.
This implements rdar://10361249.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148076 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-13 00:39:07 +00:00
Pete Cooper
ddfda5cd16 Added MVT::v2f16 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148067 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-12 23:14:13 +00:00