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Author SHA1 Message Date
Benjamin Kramer
8827e5db0d Harden test so it's not affected by changes to compare lowering. 
This only failed on hosts that don't have SSE41.

llvm-svn: 171066
 2012-12-25 13:23:23 +00:00
Benjamin Kramer
e4eabce005 X86: Shave off one shuffle from the pcmpeqq sequence for SSE2 by making use of and commutativity. 
llvm-svn: 171064
 2012-12-25 13:09:08 +00:00
Benjamin Kramer
2e313ba01d X86: Custom lower <2 x i64> eq and ne when SSE41 is not available. 
pcmpeqd, pshufd, pshufd, pand is cheaper than unpack + cmpq, sbbq, cmpq, sbbq + pack.
Small speedup on loop-vectorized viterbi (-march=core2).

llvm-svn: 171063
 2012-12-25 12:54:19 +00:00
Alexey Samsonov
c191ee3e37 ASan: initialize callbacks from ASan module pass in a separate function for consistency 
llvm-svn: 171061
 2012-12-25 12:28:20 +00:00
Alexey Samsonov
42f6219321 ASan: move stack poisoning logic into FunctionStackPoisoner struct 
llvm-svn: 171060
 2012-12-25 12:04:36 +00:00
Nick Lewycky
654d7933b1 Fix whitespace. No functionality change. 
llvm-svn: 171051
 2012-12-25 06:13:25 +00:00
Nadav Rotem
3017e5481d VCVTSS2SD requires a strict alignment. Thanks Elena. 
llvm-svn: 171049
 2012-12-25 03:29:18 +00:00
Bob Wilson
b0b344d1f6 Rename LLVMContext diagnostic handler types and functions. 
These are now generally used for all diagnostics from the backend, not just
for inline assembly, so this drops the "InlineAsm" from the names.  No
functional change.  (I've left aliases for the old names but only for long
enough to let me switch over clang to use the new ones.)

llvm-svn: 171047
 2012-12-25 00:07:12 +00:00
NAKAMURA Takumi
edcd5e6e5d [CMake] AddLLVM.cmake: Tweak the corner case that "check-all" doesn't have any tests. 
"check-all" can be executed with 0 status, "check-all does nothing, no tools built."

LLVM_EXTERNAL_CLANG_BUILD=OFF LLVM_BUILD_TOOLS=OFF can reproduce this.
Oscar Fuentes reported this. Thank you.

llvm-svn: 171046
 2012-12-24 22:43:59 +00:00
Nick Lewycky
3a64ce7001 Quiet gcc's -Wparenthesis warning. No functionality change. 
llvm-svn: 171044
 2012-12-24 19:58:45 +00:00
Nick Lewycky
56ef0e9560 Fix typo "Makre" -> "Make". 
llvm-svn: 171043
 2012-12-24 19:55:47 +00:00
Benjamin Kramer
c41131afed Use a std::string rather than a dynamically allocated char* buffer. 
This affords us to use std::string's allocation routines and use the destructor
for the memory management. Switching to that also means that we can use
operator==(const std::string&, const char *) to perform the string comparison
rather than resorting to libc functionality (i.e. strcmp).

Patch by Saleem Abdulrasool!

Differential Revision: http://llvm-reviews.chandlerc.com/D230

llvm-svn: 171042
 2012-12-24 19:23:30 +00:00
Bob Wilson
94a94e9500 Add LLVMContext::emitWarning methods and use them. <rdar://problem/12867368> 
When the backend is used from clang, it should produce proper diagnostics
instead of just printing messages to errs(). Other clients may also want to
register their own error handlers with the LLVMContext, and the same handler
should work for warnings in the same way as the existing emitError methods.

llvm-svn: 171041
 2012-12-24 18:15:21 +00:00
Dmitri Gribenko
803c074aaf Fix a typo introduced in r168577: FlAGS -> FLAGS (note the lowercase ell) 
Now we really pass -Wcovered-switch-default if the compiler supports it.

llvm-svn: 171040
 2012-12-24 17:52:48 +00:00
Dmitri Gribenko
adb6084c53 AutoRegen.sh: update reference to documentation 
llvm-svn: 171037
 2012-12-24 15:01:59 +00:00
NAKAMURA Takumi
d92f25d49d llvm/test/CodeGen/X86/fold-vex.ll: Add explicit triple. 
llvm-svn: 171029
 2012-12-24 11:14:06 +00:00
Nadav Rotem
286f6b8ea1 CostModel: We have API for checking the costs of known shuffles. This patch adds 
support for the insert-subvector and extract-subvector kinds.

llvm-svn: 171027
 2012-12-24 10:04:03 +00:00
Elena Demikhovsky
33e7b6276c Added 6 more value types: v32i1, v64i1, v32i16, v32i8, v64i8, v8f64 
llvm-svn: 171026
 2012-12-24 10:03:57 +00:00
Elena Demikhovsky
9c47e68af1 Removed "static" from "__jit_debug_descriptor" because "static" adds C++ mangling prefix to this symbol. 
llvm-svn: 171025
 2012-12-24 09:42:27 +00:00
Nadav Rotem
37de0ccb55 Some x86 instructions can load/store one of the operands to memory. On SSE, this memory needs to be aligned. 
When these instructions are encoded in VEX (on AVX) there is no such requirement. This changes the folding
tables and removes the alignment restrictions from VEX-encoded instructions.

llvm-svn: 171024
 2012-12-24 09:40:33 +00:00
Nadav Rotem
ace51e510e LoopVectorizer: When checking for vectorizable types, also check 
the StoreInst operands.

PR14705.

llvm-svn: 171023
 2012-12-24 09:14:18 +00:00
Nadav Rotem
f8f6a2ff97 Change the codegen Cost Model API for shuffeles. This patch removes the API for broadcast and adds a more general API that accepts an enum of known shuffles. 
llvm-svn: 171022
 2012-12-24 08:57:47 +00:00
Alexey Samsonov
40f2e8fde5 Fix typo in comments 
llvm-svn: 171021
 2012-12-24 08:52:53 +00:00
Nadav Rotem
9dde42c312 Update the docs of the cost model. 
llvm-svn: 171016
 2012-12-24 05:51:12 +00:00
NAKAMURA Takumi
ff3931121b llvm/MC/MCMachObjectWriter.h: ComputeSymbolTable(): Prune one description in the comment. [-Wdocumentation] 
/// \param StringIndexMap [out] - Map from symbol names to offsets in the string table.

llvm-svn: 171010
 2012-12-24 01:24:04 +00:00
Nadav Rotem
309d628c4f LoopVectorizer: Fix an endless loop in the code that looks for reductions. 
The bug was in the code that detects PHIs in if-then-else block sequence.

PR14701.

llvm-svn: 171008
 2012-12-24 01:22:06 +00:00
Dmitri Gribenko
94f3dc5280 Documentation: fix typos reported in PR13866 
llvm-svn: 171006
 2012-12-23 18:46:11 +00:00
Nadav Rotem
fb56b5fe2e CostModel: Change the default target-independent implementation for finding 
the cost of arithmetic functions. We now assume that the cost of arithmetic
operations that are marked as Legal or Promote is low, but ops that are
marked as custom are higher.

llvm-svn: 171002
 2012-12-23 17:31:23 +00:00
Benjamin Kramer
1add5cc571 LoopVectorize: Fix accidentaly inverted condition. 
llvm-svn: 171001
 2012-12-23 13:21:41 +00:00
Benjamin Kramer
d0a5bcaf53 LoopVectorize: For scalars and void types there is no need to compute vector insert/extract costs. 
Fixes an assert during the build of oggenc in the test suite.

llvm-svn: 171000
 2012-12-23 13:19:18 +00:00
Nadav Rotem
479c7fc4de We are not ready to estimate the cost of integer expansions based on the number of parts. This test is too noisy. 
llvm-svn: 170999
 2012-12-23 09:11:07 +00:00
Sean Silva
a4f7d54978 docs: Add link to external LLVM backend tutorial. 
llvm-svn: 170998
 2012-12-23 07:34:51 +00:00
Nadav Rotem
db133d1c52 whitespace 
llvm-svn: 170997
 2012-12-23 07:33:44 +00:00
Nadav Rotem
9942930d57 Rename a function. 
llvm-svn: 170996
 2012-12-23 07:30:09 +00:00
Nadav Rotem
e237376e62 Loop Vectorizer: Update the cost model of scatter/gather operations and make 
them more expensive.

llvm-svn: 170995
 2012-12-23 07:23:55 +00:00
Craig Topper
05145cd465 Remove trailing whitespace. 
llvm-svn: 170991
 2012-12-22 19:15:35 +00:00
Craig Topper
0855d67e26 Remove trailing whitespace 
llvm-svn: 170990
 2012-12-22 18:09:02 +00:00
Jakob Stoklund Olesen
a610e92cf4 Remove a special case that doesn't seem necessary any longer. 
Back when this exception was added, it was skipping a lot more code, but
now it just looks like a premature optimization.

llvm-svn: 170989
 2012-12-22 17:33:22 +00:00
Jakob Stoklund Olesen
00d07e608c Use getNumOperands() instead of Operands.size(). 
The representation of the Operands array is going to change soon so it
can be allocated from a BumpPtrAllocator.

llvm-svn: 170988
 2012-12-22 17:13:06 +00:00
Benjamin Kramer
52d36d0ccd X86: Turn mul of <4 x i32> into pmuludq when no SSE4.1 is available. 
pmuludq is slow, but it turns out that all the unpacking and packing of the
scalarized mul is even slower. 10% speedup on loop-vectorized paq8p.

llvm-svn: 170985
 2012-12-22 16:07:56 +00:00
Benjamin Kramer
a9cc52a6b3 X86: Emit vector sext as shuffle + sra if vpmovsx is not available. 
Also loosen the SSSE3 dependency a bit, expanded pshufb + psra is still better
than scalarized loads. Fixes PR14590.

llvm-svn: 170984
 2012-12-22 11:34:28 +00:00
Craig Topper
ab2b0315f2 Add a comma to fix the build. 
llvm-svn: 170982
 2012-12-22 08:22:01 +00:00
Craig Topper
faf5d76df0 Use a negative value to represent INVALID_SIMPLE_VALUE_TYPE instead of 256. Its much cheaper for the isSimple() checks to look for values less than 0 rather than a value greater than 255. This shaves ~8k off the size of the llc binary on x86-64. 
llvm-svn: 170981
 2012-12-22 08:16:17 +00:00
Craig Topper
7d908d812c Add vAny and Metadata to the switch in getSizeInBits for consistency since every other enum was listed. 
llvm-svn: 170977
 2012-12-22 03:08:37 +00:00
Daniel Dunbar
ddefc57253 [utils] Tweak utils/clang-parse-diagnostics-file to ignore autoconf diagnostics. 
- Also, don't print headers if we aren't going to print any diagnostics.

llvm-svn: 170973
 2012-12-22 00:47:06 +00:00
Bill Wendling
a16e5519db Change 'AttrVal' to 'AttrKind' to better reflect that it's a kind of attribute instead of the value of the attribute. 
llvm-svn: 170972
 2012-12-22 00:37:52 +00:00
Richard Smith
396fedeb01 Fix some undefined behavior when parsing YAML input: don't try to compare an 
uninitialized value against a default value. Found by -fsanitize=enum.

llvm-svn: 170970
 2012-12-22 00:31:54 +00:00
Richard Smith
80529530ef Don't call back() on an empty SmallVector. Found by -fsanitize=enum! 
llvm-svn: 170968
 2012-12-22 00:15:13 +00:00
Nadav Rotem
df77ac1ba8 In some cases, due to scheduling constraints we copy the EFLAGS. 
The only way to read the eflags is using push and pop. If we don't
adjust the stack then we run over the first frame index. This is
not something that we want to do, so we have to make sure that
our machine function does not copy the flags. If it does then
we have to emit the prolog that adjusts the stack.

rdar://12896831

llvm-svn: 170961
 2012-12-21 23:48:49 +00:00
Akira Hatanaka
6d30f89eeb [mips] Refactor subword-swap, EXT/INS, load-effective-address and read-hardware 
instructions.

llvm-svn: 170956
 2012-12-21 23:21:32 +00:00