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58347 Commits

Author SHA1 Message Date
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
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
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
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
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
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
Craig Topper
755841d9d7 Fix 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171097 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 06:15:53 +00:00
Craig Topper
6f9d44e072 Fix class name in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171096 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 06:15:09 +00:00
Craig Topper
219bc2db1f Merge SSE/AVX PCMPEQ/PCMPGT instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171095 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 06:14:15 +00:00
Craig Topper
02082efaab Remove 'v' from mnemonic to fix asm matching failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171093 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 06:02:15 +00:00
Craig Topper
3cdc3827ce Use an additional multiclass to merge the 128/256-bit SSE/AVX instruction definitions for a bunch of SSE2 integer arithmetic instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171092 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 05:49:15 +00:00
Nadav Rotem
a05f7cbbde Reformat the docs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171091 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 04:59:20 +00:00
Craig Topper
09a326d3f0 Use an additional multiclass to merge the 128/256-bit SSE/AVX instruction definitions for PAND/POR/PXOR/PANDN 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171087 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 04:36:03 +00:00
Craig Topper
1fe132ae7d Merge an AVX/SSE 256-bit and 128-bit multiclass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171086 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 03:56:47 +00:00
Craig Topper
b5c590a586 Mark VANDNPD/VANDNPDS as not commutable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171085 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 03:48:10 +00:00
Craig Topper
174a3d3e63 Remove alignment from a bunch more VEX encoded operations in the folding tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171082 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 02:44:47 +00:00
Craig Topper
d83a73adf0 Remove alignment from folding table for VMOVUPD as an unaligned instruction it shouldn't require alignment... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171081 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 02:14:19 +00:00
Craig Topper
1ac0046fa8 Remove alignment requirements from (V)EXTRACTPS. This instruction does 32-bit stores which aren't required to be aligned on SSE or AVX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171080 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 01:47:12 +00:00
Hal Finkel
a777284158 BBVectorize: Use VTTI to compute costs for intrinsics vectorization 
For the time being this includes only some dummy test cases. Once the
generic implementation of the intrinsics cost function does something other
than assuming scalarization in all cases, or some target specializes the
interface, some real test cases can be added.

Also, for consistency, I changed the type of IID from unsigned to Intrinsic::ID
in a few other places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171079 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 01:36:57 +00:00
Craig Topper
0f77910e6f Remove alignment requirement from VCVTSS2SD in folding tables. Reverting r171049. This instruction doesn't require alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171078 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-26 00:35:47 +00:00
Hal Finkel
1d59f5fa53 LoopVectorize: Enable vectorization of the fmuladd intrinsic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171076 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 23:21:29 +00:00
Hal Finkel
64a7a24edf BBVectorize: Enable vectorization of the fmuladd intrinsic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171075 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 22:36:08 +00:00
Hal Finkel
cd9ea51986 Expand PPC64 atomic load and store 
Use of store or load with the atomic specifier on 64-bit types would
cause instruction-selection failures. As with the 32-bit case, these
can use the default expansion in terms of cmp-and-swap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171072 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 17:22:53 +00:00
Evgeniy Stepanov
59a65f7b24 [msan] Fix handling of vectors of pointers. 
VectorType::getInteger() can not be used with them, because pointer size
depends on the target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171070 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 16:04:38 +00:00
Evgeniy Stepanov
6607716368 [msan] Fix handling of select with vector condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171069 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-25 14:56:21 +00:00
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