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2012-12-27AVX/AVX2: Move the SEXT lowering code from a target specific DAGco to a ↵Nadav Rotem
lowering function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171170 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Merge basic_sse12_fp_binop_p and basic_sse12_fp_binop_p_y multiclasses.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27On AVX/AVX2 the type v8i1 is legalized to v8i16, which is an XMM sizedNadav Rotem
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
2012-12-27AVX/AVX2: Move the code that lowers vector-trunc from a DAGCo-hook to custom ↵Nadav Rotem
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
2012-12-27Add hasSideEffects=0 to some forms of ROUND, RCP, and RSQRT.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Move single letter 'P' prefix out of multiclass now that tablegen allows ↵Craig Topper
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
2012-12-27Add hasSideEffects=0 to some shift and rotate instructions. None of which ↵Craig Topper
are currently used by code generation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171137 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Mark the divide instructions as hasSideEffects=0.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Add hasSideEffects=0 to CMP*rr_REV.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171130 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Add mayLoad, mayStore, and hasSideEffects tags to BT/BTS/BTR/BTC ↵Craig Topper
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
2012-12-26Fix operands and encoding form for ARPL instruction. Register form had and ↵Craig Topper
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
2012-12-26Add hasSideEffects=0 to some atomic instructions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171122 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Mark the AL/AX/EAX forms of the basic arithmetic operations has never having ↵Craig Topper
side effects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Mark all the _REV instructions as not having side effects. They aren't ↵Craig Topper
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
2012-12-26Remove a special conditional setting of neverHasSideEffects if the ↵Craig Topper
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
2012-12-26Merge still more SSE/AVX instruction definitions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171103 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Merge more SSE/AVX instruction definitions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Fix 80 column violation.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171097 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Fix class name in comment.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171096 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Merge SSE/AVX PCMPEQ/PCMPGT instruction definitions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171095 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Remove 'v' from mnemonic to fix asm matching failures.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Use an additional multiclass to merge the 128/256-bit SSE/AVX instruction ↵Craig Topper
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
2012-12-26Reformat the docs.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171091 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Use an additional multiclass to merge the 128/256-bit SSE/AVX instruction ↵Craig Topper
definitions for PAND/POR/PXOR/PANDN git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171087 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Merge an AVX/SSE 256-bit and 128-bit multiclass.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171086 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Mark VANDNPD/VANDNPDS as not commutable.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171085 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Remove alignment from a bunch more VEX encoded operations in the folding tables.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171082 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Remove alignment from folding table for VMOVUPD as an unaligned instruction ↵Craig Topper
it shouldn't require alignment... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26Remove alignment requirements from (V)EXTRACTPS. This instruction does ↵Craig Topper
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
2012-12-26Remove alignment requirement from VCVTSS2SD in folding tables. Reverting ↵Craig Topper
r171049. This instruction doesn't require alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171078 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25X86: Shave off one shuffle from the pcmpeqq sequence for SSE2 by making use ↵Benjamin Kramer
of and commutativity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171064 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25X86: Custom lower <2 x i64> eq and ne when SSE41 is not available.Benjamin Kramer
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
2012-12-25VCVTSS2SD requires a strict alignment. Thanks Elena.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171049 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-24Quiet gcc's -Wparenthesis warning. No functionality change.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171044 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-24Some x86 instructions can load/store one of the operands to memory. On SSE, ↵Nadav Rotem
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
2012-12-23whitespaceNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170997 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-23Rename a function.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170996 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-23Loop Vectorizer: Update the cost model of scatter/gather operations and makeNadav Rotem
them more expensive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170995 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-22X86: Turn mul of <4 x i32> into pmuludq when no SSE4.1 is available.Benjamin Kramer
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
2012-12-22X86: Emit vector sext as shuffle + sra if vpmovsx is not available.Benjamin Kramer
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
2012-12-21In some cases, due to scheduling constraints we copy the EFLAGS.Nadav Rotem
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
2012-12-21X86: Match pmin/pmax as a target specific dag combine. This occurs during ↵Benjamin Kramer
vectorization. Part of PR14667. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170908 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21X86: Match the SSE/AVX min/max vector ops using a custom node instead of ↵Benjamin Kramer
intrinsics This is very mechanical, no functionality change. Preparation for PR14667. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170898 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Add a missing "virtual" keyword.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170842 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Improve the X86 cost model for loads and stores.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170830 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Add an MF argument to MI::copyImplicitOps().Jakob Stoklund Olesen
This function is often used to decorate dangling instructions, so a context reference is required to allocate memory for the operands. Also add a corresponding MachineInstrBuilder method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170797 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Remove MCTargetAsmLexer and its derived classes now that edis,Roman Divacky
its only user, is gone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170699 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Fix use-before-construction of X86TargetLowering.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170654 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19MC: Add MCInstrDesc::mayAffectControlFlow() method.Jim Grosbach
MC disassembler clients (LLDB) are interested in querying if an instruction may affect control flow other than by virtue of being an explicit branch instruction. For example, instructions which write directly to the PC on some architectures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170610 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Remove the explicit MachineInstrBuilder(MI) constructor.Jakob Stoklund Olesen
Use the version that also takes an MF reference instead. It would technically be possible to extract an MF reference from the MI as MI->getParent()->getParent(), but that would not work for MIs that are not inserted into any basic block. Given the reasonably small number of places this constructor was used at all, I preferred the compile time check to a run time assertion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170588 91177308-0d34-0410-b5e6-96231b3b80d8
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