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Author SHA1 Message Date
Chandler Carruth
c98bd9f1a7 Add entry points to instsimplify for simplifying calls. The entry points 
are nice and decomposed so that we can simplify synthesized calls as
easily as actually call instructions. The internal utility still has the
same behavior, it just now operates on a more generic interface so that
I can extend the set of call simplifications that instsimplify knows
about.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171189 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-28 11:30:55 +00:00
Alexey Samsonov
f045df1b8b Add proper support for -fsanitize-blacklist= flag for TSan and MSan. LLVM part. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171183 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-28 09:30:44 +00:00
Nadav Rotem
ae34b4280e CostModel: initial checkin for code that estimates the cost of special shuffles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171180 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-28 08:19:03 +00:00
Nadav Rotem
40ef8b7548 wrap 80-col lines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171179 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-28 07:28:43 +00:00
Nadav Rotem
0509db2738 AVX: Move the ZEXT/ANYEXT DAGCo optimizations to the lowering of these optimizations. The old test cases still cover all of these lowering/optimizations. The single change that we have is that now anyext does not need to zero a register, because it does not use the exact code path as the zero_extend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171178 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-28 05:45:24 +00:00
Nadav Rotem
587fb1dd30 Reverse the 'if' condition and reduce the indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171172 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 23:08:05 +00:00
Craig Topper
cccccabd07 Merge basic_sse12_fp_binop_p_int and basic_sse12_fp_binop_p_y_int multiclasses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171171 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 22:53:47 +00:00
Nadav Rotem
1a330af3b5 AVX/AVX2: Move the SEXT lowering code from a target specific DAGco to a lowering function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171170 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 22:47:16 +00:00
Craig Topper
d5fc507ff1 Merge basic_sse12_fp_binop_p and basic_sse12_fp_binop_p_y multiclasses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171166 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 18:51:50 +00:00
Chandler Carruth
a455fdd7e1 Add support to BasicBlocks for iterating backwards over the 
instructions. This just exposes the already present reverse iterators of
the instruction ilist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171159 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 12:00:56 +00:00
Chandler Carruth
edf315cd71 Provide a common half-open interval map info implementation, and just 
re-use that for SlotIndexes. This way other users who want half-open
semantics can share the implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171158 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 11:29:17 +00:00
Chandler Carruth
7ccc2f7a78 Make this parameter be named consistently with most other 
getAnalysisUsage implementations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171157 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 11:17:15 +00:00
Sean Silva
bdb0c0aaf3 docs: Add FAQ about "storing to a virtual register". 
This came up for the N+1'st time today in IRC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171155 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 10:23:04 +00:00
Sean Silva
6fa16e192f docs: Move link to the new "external tutorials" area. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171154 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 08:57:08 +00:00
Alexey Samsonov
1c8b825c43 [ASan] Fix lifetime intrinsics handling. Now for each intrinsic we check if it describes one of 'interesting' allocas. Assume that allocas can go through casts and phi-nodes before apperaring as llvm.lifetime arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171153 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 08:50:58 +00:00
Nadav Rotem
3190be9c9a DAGCombinerInformation: add a getter that exposes the dagcombine level. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171152 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 08:44:35 +00:00
Alexey Samsonov
44185d4908 Fix new[]/delete mismatch in FullDependence spotted by AddressSanitizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171150 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 08:40:37 +00:00
Nadav Rotem
898c5e86fb docs: Update the benchmark with updated perf numbers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171149 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 08:32:44 +00:00
Nadav Rotem
d6fb53adb1 On AVX/AVX2 the type v8i1 is legalized to v8i16, which is an XMM sized 
register. In most cases we actually compare or select YMM-sized registers
and mixing the two types creates horrible code. This commit optimizes
some of the transition sequences.

PR14657.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171148 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 08:15:45 +00:00
Nadav Rotem
3c22a44400 AVX/AVX2: Move the code that lowers vector-trunc from a DAGCo-hook to custom lowering hook. 
The vector truncs were scalarized during LegalizeVectorOps, later vectorized again by some DAGCombine optimization
and finally, lowered by a dagcombing optimization. Now, they are properly lowered during LegalizeVectorOps.
No new testcase because the original testcases still work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171146 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 07:45:10 +00:00
Craig Topper
068aec586d Add hasSideEffects=0 to some forms of ROUND, RCP, and RSQRT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171143 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 07:16:08 +00:00
Nadav Rotem
444b4bf5c8 Refactor DAGCombinerInfo. Change the different booleans that indicate if we are before or after different runs of DAGCo, with the CombineLevel enum. 
Also, added a new API for checking if we are running before or after the LegalizeVectorOps phase. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171142 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 06:47:41 +00:00
Craig Topper
d0f28c0958 Move single letter 'P' prefix out of multiclass now that tablegen allows defm to start with #NAME. This makes instruction names more searchable again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171141 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 06:34:54 +00:00
Craig Topper
025c5de9ba Update tablegen parser to allow defm names to start with #NAME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171140 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 06:32:52 +00:00
Craig Topper
87073aad8f Add hasSideEffects=0 to some shift and rotate instructions. None of which are currently used by code generation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171137 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 03:35:44 +00:00
Craig Topper
766cbae4b1 Mark the divide instructions as hasSideEffects=0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171136 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 03:01:18 +00:00
Eric Christopher
64f824c9d1 For the dwarf5 split debug info code split out the string section 
per compile unit/skeleton compile unit. Update tests accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171133 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 02:14:01 +00:00
Eric Christopher
d84aa00c7c FileCheck-ize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171132 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 02:13:58 +00:00
Eric Christopher
5211876288 FileCheck-ize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171131 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 02:13:55 +00:00
Craig Topper
0b9c5e268f Add hasSideEffects=0 to CMP*rr_REV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171130 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 02:08:46 +00:00
Nadav Rotem
d92ee757c3 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171129 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 02:04:12 +00:00
Craig Topper
5e6a86c7f0 Add mayLoad, mayStore, and hasSideEffects tags to BT/BTS/BTR/BTC instructions. Shouldn't change any functionality since they don't have patterns to select them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171128 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 02:01:33 +00:00
Eric Christopher
32b3768ec1 Right now all of the relocations are 32-bit dwarf, and the relocation 
information doesn't return an addend for Rel relocations. Go ahead
and use this information to fix relocation handling inside dwarfdump
for 32-bit ELF REL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171126 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-27 01:07:07 +00:00
Nadav Rotem
5dd839430c If all of the write objects are identified then we can vectorize the loop even if the read objects are unidentified. 
PR14719.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171124 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 23:30:53 +00:00
Craig Topper
e9fd6ad567 Fix operands and encoding form for ARPL instruction. Register form had and reversed. Memory form writes memory, but was marked as MRMSrcMem. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171123 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 23:27:57 +00:00
Craig Topper
ee5b63cb52 Add hasSideEffects=0 to some atomic instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171122 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 23:08:12 +00:00
Craig Topper
b87a5b3a1f Mark the AL/AX/EAX forms of the basic arithmetic operations has never having side effects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171121 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 22:19:23 +00:00
Nick Lewycky
dbf5081a31 80 columns. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171120 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 22:00:49 +00:00
Nick Lewycky
1dec62ed43 Remove mid-optimizer warning. This situation should be handled differently, 
such as by a compiler warning, a check in clang -fsanitizer=undefined, being
optimized to unreachable, or a combination of the above. PR14722.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171119 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 22:00:35 +00:00
Craig Topper
37cb8398c8 Mark all the _REV instructions as not having side effects. They aren't really emitted by the backend, but it reduces the number of instructions in the output files with unmodelled side effects to make auditing easier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171118 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 21:30:22 +00:00
Craig Topper
a85cbfeba7 Remove a special conditional setting of neverHasSideEffects if the instruction didn't have a pattern. This was leftover from when tablegen used to complain if things were already inferred from patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171117 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 21:04:30 +00:00
Nadav Rotem
8c6cb31f6e Update the docs with the new workload that was added. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171115 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 19:45:00 +00:00
Nadav Rotem
13eb1e7817 LoopVectorizer: Optimize the vectorization of consecutive memory access when the iteration step is -1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171114 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 19:08:17 +00:00
Eli Bendersky
f1a26cf9df Fix comment typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171113 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 18:15:42 +00:00
Evgeniy Stepanov
b53be53c72 [msan] Raise alignment of origin stores/loads when possible. 
Origin alignment is as high as the alignment of the corresponding application
location, but never less than 4.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171110 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 11:55:09 +00:00
Evgeniy Stepanov
ab29644a33 [msan] Expand the file comment with track-origins info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171109 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 10:59:00 +00:00
Benjamin Kramer
23c5021f42 Fix quoting in configure. Patch by Krzysztof Parzyszek! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171108 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 10:48:49 +00:00
Craig Topper
0a5ead92ff Merge still more SSE/AVX instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171103 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 07:54:43 +00:00
Craig Topper
07555fc640 Merge more SSE/AVX instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171102 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 07:20:35 +00:00
NAKAMURA Takumi
fc093def2d TableGen/FixedLenDecoderEmitter.cpp: Fix a potential mask overflow in fieldFromInstruction(). 
Reported by Yang Yongyong, thanks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171101 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 06:43:14 +00:00