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Author SHA1 Message Date
Jakob Stoklund Olesen
6f2b596e57 Enable the new coalescer algorithm by default. 
The new coalescer is better at merging values into unused vector lanes,
improving NEON code.

llvm-svn: 164794
 2012-09-27 21:06:02 +00:00
Jakob Stoklund Olesen
efc4920548 Don't dereference begin() on an empty vector. 
The fix is obvious and the only test case I have is horrible, so I am
not including it. The problem shows up when self-hosting clang on i386
with -new-coalescer enabled.

llvm-svn: 164793
 2012-09-27 21:05:59 +00:00
Akira Hatanaka
4282b930ad MIPS DSP: ABSQ_S.PH instruction sub-class. 
llvm-svn: 164787
 2012-09-27 19:09:21 +00:00
Akira Hatanaka
1b01d7ee93 MIPS DSP: SHLL.QB instruction sub-class. 
llvm-svn: 164786
 2012-09-27 19:05:08 +00:00
Benjamin Kramer
cb89947f87 Fix a integer overflow in SimplifyCFG's look up table formation logic. 
If the width is very large it gets truncated from uint64_t to uint32_t when
passed to TD->fitsInLegalInteger. The truncated value can fit in a register.
This manifested in massive memory usage or crashes (PR13946).

llvm-svn: 164784
 2012-09-27 18:29:58 +00:00
Micah Villmow
66c88768ad Fix CRLF issues. 
llvm-svn: 164782
 2012-09-27 17:51:02 +00:00
Jakob Stoklund Olesen
ffe0e379b9 Avoid dereferencing a NULL pointer. 
Fixes PR13943.

llvm-svn: 164778
 2012-09-27 16:34:19 +00:00
Micah Villmow
466ac299d9 Patch for HowToBuildOnARM documentation from Wei-Ren Chen. 
llvm-svn: 164776
 2012-09-27 15:05:49 +00:00
Sylvestre Ledru
b77340e506 Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 
llvm-svn: 164768
 2012-09-27 10:14:43 +00:00
Sylvestre Ledru
1c5e7904de Fix a typo 'iff' => 'if' 
llvm-svn: 164767
 2012-09-27 09:59:43 +00:00
Nick Lewycky
9ae46f5c91 Prefer shuffles to selects. Backends love shuffles! 
llvm-svn: 164763
 2012-09-27 08:33:56 +00:00
Bill Wendling
c8cda02cd8 Add constructors to the attribute builder. 
llvm-svn: 164762
 2012-09-27 07:22:30 +00:00
Nick Lewycky
95ec62ccf1 Add missing function CreateFPCast to the TargetFolder. It's there in the other 
folders and not having it here fails to compile if you actually try to use it.

Also, CreatePointerCast was failing to do the part where it does TD-aware
constant folding. Granted there is exactly one case where that it will ever
do anything, but there's no reason to skip it. For reference, that case is a
subtraction between two constant offsets on the same global variable, eg.,
"&A[123] - &A[4].f".

llvm-svn: 164760
 2012-09-27 06:33:40 +00:00
Jush Lu
ff46f6b0c6 [arm-fast-isel] Add support for ELF PIC. 
This is a preliminary step towards ELF support; currently ARMFastISel hasn't
been used for ELF object files yet.

llvm-svn: 164759
 2012-09-27 05:21:41 +00:00
Akira Hatanaka
573895e81e Test case for r164755 and 164756. 
llvm-svn: 164757
 2012-09-27 04:12:30 +00:00
Akira Hatanaka
dbe52eccf8 MIPS DSP: rddsp (instruction which reads DSPControl register fields to a GPR). 
llvm-svn: 164756
 2012-09-27 04:08:42 +00:00
Akira Hatanaka
6ad7cd9351 MIPS DSP: CMPU.EQ.QB instruction sub-class. 
llvm-svn: 164755
 2012-09-27 03:58:34 +00:00
Akira Hatanaka
8e6fa1d3a5 MIPS DSP: ADDU.QB instruction sub-class. 
llvm-svn: 164754
 2012-09-27 03:13:59 +00:00
Akira Hatanaka
5a5e58b7ab MIPS DSP: Branch on Greater Than or Equal To Value 32 in DSPControl Pos Field instruction. 
llvm-svn: 164751
 2012-09-27 02:15:57 +00:00
Akira Hatanaka
b33fd0ad28 MIPS DSP: all the remaining instructions which read or write accumulators. 
llvm-svn: 164750
 2012-09-27 02:11:20 +00:00
Akira Hatanaka
b2ac1bfabe MIPS DSP: add support for extract-word instructions. 
llvm-svn: 164749
 2012-09-27 02:05:42 +00:00
Akira Hatanaka
74880b0bd8 MIPS DSP: add functions which decode DSP and accumulator registers. 
llvm-svn: 164748
 2012-09-27 02:01:10 +00:00
Akira Hatanaka
d8a832c6e6 MIPS DSP: add code necessary for pseudo instruction lowering. 
llvm-svn: 164747
 2012-09-27 01:59:07 +00:00
Akira Hatanaka
882f4d03f6 MIPS DSP: add bitcast patterns between vectors and int. 
No test cases. These patterns will get tested along with dsp intrinsics.

llvm-svn: 164746
 2012-09-27 01:56:38 +00:00
Akira Hatanaka
804a9036c3 MIPS DSP: add vector load/store patterns. 
llvm-svn: 164744
 2012-09-27 01:50:59 +00:00
Andrew Kaylor
d4fd8dc580 Fix of hang during Intel JIT profiling 
Committed on behalf of Kirill Uhanov

llvm-svn: 164736
 2012-09-26 23:43:56 +00:00
Bill Wendling
8a18a7b5f5 Buildbot Fix. 
This method can be called with a '0' argument which checks the return
value. However, the method it calls doesn't expect '0' as a valid value. Call the
correct method when it's 0.

llvm-svn: 164735
 2012-09-26 23:38:00 +00:00
Nick Lewycky
e74df57cd4 Disable the new SROA pass to get the tree back in working order. We don't yet 
have testcases for the current problems.

llvm-svn: 164731
 2012-09-26 22:43:04 +00:00
Dan Gohman
28f428eb2b Add IRBuilder code for adding !tbaa.struct metadata tags to llvm.memcpy calls. 
llvm-svn: 164728
 2012-09-26 22:17:14 +00:00
Bill Wendling
511b13f148 Query the parameter attributes directly instead of using the Attribute symbols. 
llvm-svn: 164727
 2012-09-26 22:15:19 +00:00
Bill Wendling
92f3ab845d Remove the `hasFnAttr' method from Function. 
The hasFnAttr method has been replaced by querying the Attributes explicitly. No
intended functionality change.

llvm-svn: 164725
 2012-09-26 21:48:26 +00:00
Jim Grosbach
22a8871d1f X86_32: Large Symbol+Offset relocations. 
If the offset is more than 24-bits, it won't fit in a scattered
relocation offset field, so we fall back to using a non-scattered
relocation.

rdar://12358909

llvm-svn: 164724
 2012-09-26 21:27:45 +00:00
Bill Wendling
814c41e2c5 Initial commit for the AttributesImpl class. 
This opaque class will contain all of the attributes. All attribute queries will
go through this object. This object will also be uniqued in the LLVMContext.
Currently not used, so no implementation change.

llvm-svn: 164722
 2012-09-26 21:07:29 +00:00
Akira Hatanaka
0239560105 Add case clauses for returning dsp accumulator encoding values in function 
getMipsRegisterNumbering.

llvm-svn: 164720
 2012-09-26 19:27:24 +00:00
Akira Hatanaka
38d50c9afd Add DSP accumulator registers and register class. Remove hi/lo registers. 
llvm-svn: 164719
 2012-09-26 19:25:21 +00:00
Akira Hatanaka
91bf56ac6c Delete member MipsFunctionInfo::OutArgFIRange and code that accesses it. 
llvm-svn: 164718
 2012-09-26 19:18:19 +00:00
Benjamin Kramer
058817c6d4 Add support for detecting some corei7-class Xeons. 
llvm-svn: 164714
 2012-09-26 18:21:47 +00:00
Duncan Sands
c10b8fc428 Now that invoke of an intrinsic is possible (for the llvm.do.nothing intrinsic) 
teach the callgraph logic to not create callgraph edges to intrinsics for invoke
instructions; it already skips this for call instructions.  Fixes PR13903.

llvm-svn: 164707
 2012-09-26 17:16:01 +00:00
Benjamin Kramer
e7022be429 YAMLParser: Fix invalid reads when encountering incorrectly quoted scalar. 
Fixes PR12632.

llvm-svn: 164701
 2012-09-26 15:52:15 +00:00
Benjamin Kramer
9cd31639d0 Remove unneeded and invalid SetInsertPoint calls from unittest. 
BB->end() returns a sentinel value that is not a legal insert point.

llvm-svn: 164699
 2012-09-26 15:16:05 +00:00
Benjamin Kramer
6b5f441814 APFloat::roundToIntegral: Special values don't keep the exponent value up to date, don't rely on it. 
Add a couple of unit tests for special floats. Fixes 13929, found by MemorySanitizer.

llvm-svn: 164698
 2012-09-26 14:06:58 +00:00
Hans Wennborg
e1a73f6ca3 Address Duncan's comments on r164684: 
- Put statistics in alphabetical order
- Don't use getZextValue when building TableInt, just use APInts
- Introduce Create{Z,S}ExtOrTrunc in IRBuilder.

llvm-svn: 164696
 2012-09-26 14:01:53 +00:00
Hans Wennborg
1285a4d020 Address Duncan's comments on r164682: 
- Finish assert messages with exclamation mark
- Move overflow checking into ShouldBuildLookupTable.

llvm-svn: 164692
 2012-09-26 11:07:37 +00:00
Chandler Carruth
190685f078 Analogous fix to memset and memcpy rewriting. Don't have a test case 
contrived for these yet, as I spotted them by inspection and the test
cases are a bit more tricky to phrase.

llvm-svn: 164691
 2012-09-26 10:59:22 +00:00
Chandler Carruth
8638d35784 When rewriting the pointer operand to a load or store which has 
alignment guarantees attached, re-compute the alignment so that we
consider offsets which impact alignment.

llvm-svn: 164690
 2012-09-26 10:45:28 +00:00
Chandler Carruth
0254cf6d85 Teach all of the loads, stores, memsets and memcpys created by the 
rewriter in SROA to carry a proper alignment. This involves
interrogating various sources of alignment, etc. This is a more complete
and principled fix to PR13920 as well as related bugs pointed out by Eli
in review and by inspection in the area.

Also by inspection fix the integer and vector promotion paths to create
aligned loads and stores. I still need to work up test cases for
these... Sorry for the delay, they were found purely by inspection.

llvm-svn: 164689
 2012-09-26 10:27:46 +00:00
Chandler Carruth
8d729fba5a Add some convenience methods to IRBuilder for constructing aligned loads 
and stores. These will be used in subsequnet patches to SROA to more
systematically manage the alignment on loads and stores.

llvm-svn: 164688
 2012-09-26 10:27:40 +00:00
NAKAMURA Takumi
f8c0be6df4 ARM/atomicrmw_minmax.ll: Fix RUN line. 
llvm-svn: 164687
 2012-09-26 10:12:20 +00:00
Benjamin Kramer
50774721dc Fix tests that didn't test anything. 
llvm-svn: 164686
 2012-09-26 09:51:39 +00:00
James Molloy
220547e625 Fix ordering of operands on lowering of atomicrmw min/max nodes on ARM. 
llvm-svn: 164685
 2012-09-26 09:48:32 +00:00