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Author SHA1 Message Date
Benjamin Kramer
99f78061e0 X86: Shave off one shuffle from the pcmpeqq sequence for SSE2 by making use of and commutativity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171064 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 13:09:08 +00:00
Benjamin Kramer
382ed78d3f 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).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171063 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 12:54:19 +00:00
Alexey Samsonov
4684858624 ASan: initialize callbacks from ASan module pass in a separate function for consistency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171061 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 12:28:20 +00:00
Alexey Samsonov
59cca13a80 ASan: move stack poisoning logic into FunctionStackPoisoner struct 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171060 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 12:04:36 +00:00
Nick Lewycky
08d785bc2a Fix whitespace. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171051 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 06:13:25 +00:00
Nadav Rotem
a4c8a32a9f VCVTSS2SD requires a strict alignment. Thanks Elena. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171049 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 03:29:18 +00:00
Bob Wilson
04de315694 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.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171047 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 00:07:12 +00:00
NAKAMURA Takumi
3d662d5586 [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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171046 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 22:43:59 +00:00
Nick Lewycky
71f30bffcf Quiet gcc's -Wparenthesis warning. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171044 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 19:58:45 +00:00
Nick Lewycky
c18f889ee0 Fix typo "Makre" -> "Make". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171043 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 19:55:47 +00:00
Benjamin Kramer
791dbb3e5f 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171042 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 19:23:30 +00:00
Bob Wilson
a0be09f511 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171041 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 18:15:21 +00:00
Dmitri Gribenko
fa45cdf646 Fix a typo introduced in r168577: FlAGS -> FLAGS (note the lowercase ell) 
Now we really pass -Wcovered-switch-default if the compiler supports it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171040 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 17:52:48 +00:00
Dmitri Gribenko
0fa62a3122 AutoRegen.sh: update reference to documentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171037 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 15:01:59 +00:00
NAKAMURA Takumi
34cb54bea8 llvm/test/CodeGen/X86/fold-vex.ll: Add explicit triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171029 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 11:14:06 +00:00
Nadav Rotem
1e1c5f37c3 CostModel: We have API for checking the costs of known shuffles. This patch adds 
support for the insert-subvector and extract-subvector kinds.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171027 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 10:04:03 +00:00
Elena Demikhovsky
94d7ab7da4 Added 6 more value types: v32i1, v64i1, v32i16, v32i8, v64i8, v8f64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171026 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 10:03:57 +00:00
Elena Demikhovsky
4b254679e7 Removed "static" from "__jit_debug_descriptor" because "static" adds C++ mangling prefix to this symbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171025 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 09:42:27 +00:00
Nadav Rotem
ace0c2fad7 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171024 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 09:40:33 +00:00
Nadav Rotem
9e5329d77e LoopVectorizer: When checking for vectorizable types, also check 
the StoreInst operands.

PR14705.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171023 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 09:14:18 +00:00
Nadav Rotem
daf7b5c8f2 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171022 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 08:57:47 +00:00
Alexey Samsonov
3a19999413 Fix typo in comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171021 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 08:52:53 +00:00
Nadav Rotem
99b7a99376 Update the docs of the cost model. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171016 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 05:51:12 +00:00
NAKAMURA Takumi
85e910fe5c 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171010 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 01:24:04 +00:00
Nadav Rotem
470ea9b72f 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171008 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-24 01:22:06 +00:00
Dmitri Gribenko
a048c237e6 Documentation: fix typos reported in PR13866 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171006 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 18:46:11 +00:00
Nadav Rotem
6f3d81a929 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171002 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 17:31:23 +00:00
Benjamin Kramer
a1acf55738 LoopVectorize: Fix accidentaly inverted condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171001 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 13:21:41 +00:00
Benjamin Kramer
417872ed08 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171000 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 13:19:18 +00:00
Nadav Rotem
f85ec865f0 We are not ready to estimate the cost of integer expansions based on the number of parts. This test is too noisy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170999 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 09:11:07 +00:00
Sean Silva
d63c66890c docs: Add link to external LLVM backend tutorial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170998 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 07:34:51 +00:00
Nadav Rotem
40b04a481d whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170997 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 07:33:44 +00:00
Nadav Rotem
677689cf5d Rename a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170996 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 07:30:09 +00:00
Nadav Rotem
d54fed2786 Loop Vectorizer: Update the cost model of scatter/gather operations and make 
them more expensive.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170995 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-23 07:23:55 +00:00
Craig Topper
c4265e1d68 Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170991 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 19:15:35 +00:00
Craig Topper
8a8413d75c Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170990 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 18:09:02 +00:00
Jakob Stoklund Olesen
037435d114 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170989 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 17:33:22 +00:00
Jakob Stoklund Olesen
021e3b6444 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170988 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 17:13:06 +00:00
Benjamin Kramer
2f8a6cdfa3 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170985 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 16:07:56 +00:00
Benjamin Kramer
17347912b4 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170984 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 11:34:28 +00:00
Craig Topper
b44c1f90e4 Add a comma to fix the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170982 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 08:22:01 +00:00
Craig Topper
3f92b1bda0 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170981 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 08:16:17 +00:00
Craig Topper
bf50d07625 Add vAny and Metadata to the switch in getSizeInBits for consistency since every other enum was listed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170977 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 03:08:37 +00:00
Daniel Dunbar
70d4e75a37 [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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170973 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 00:47:06 +00:00
Bill Wendling
629fb82419 Change 'AttrVal' to 'AttrKind' to better reflect that it's a kind of attribute instead of the value of the attribute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170972 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 00:37:52 +00:00
Richard Smith
9679a04da6 Fix some undefined behavior when parsing YAML input: don't try to compare an 
uninitialized value against a default value. Found by -fsanitize=enum.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170970 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 00:31:54 +00:00
Richard Smith
2b45dd58b2 Don't call back() on an empty SmallVector. Found by -fsanitize=enum! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170968 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-22 00:15:13 +00:00
Nadav Rotem
d0696ef8c3 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170961 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-21 23:48:49 +00:00
Akira Hatanaka
dbf51ee459 [mips] Refactor subword-swap, EXT/INS, load-effective-address and read-hardware 
instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170956 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-21 23:21:32 +00:00
Akira Hatanaka
e8bc10b902 [mips] Refactor SYNC and multiply/divide instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170955 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-21 23:17:36 +00:00