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2012-04-11Add two statistics to help track how we are computing the inline cost.Chandler Carruth
Yea, 'NumCallerCallersAnalyzed' isn't a great name, suggestions welcome. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154492 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Reapply 154397. Original message:Nadav Rotem
Fix a dagcombine optimization which assumes that the vsetcc result type is always of the same size as the compared values. This is ture for SSE/AVX/NEON but not for all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Comment typo fix.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154488 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Add more fused mul+add/sub patterns. rdar://10139676Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154484 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Reapply 154396 after fixing a test.Nadav Rotem
Original message: Modify the code that lowers shuffles to blends from using blendvXX to vblendXX. blendV uses a register for the selection while Vblend uses an immediate. On sandybridge they still have the same latency and execute on the same execution ports. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154483 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Clean up ARM fused multiply + add/sub support some more: rename some iselEvan Cheng
predicates. Also remove NEON2 since it's not really useful and it is confusing. If NEON + VFP4 implies NEON2 but NEON2 doesn't imply NEON + VFP4, what does it really mean? rdar://10139676 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154480 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Fix an overly indented line. Remove an 'else' after an 'if' that returns.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154479 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Inline implVisitAluOverflow by introducing a nested switch to convert the ↵Craig Topper
intrinsic to an nodetype. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154478 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Tablegen'd regpressure: emit the weighted pressure limit.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Table-generated register pressure fixes.Andrew Trick
Handle mixing allocatable and unallocatable register gracefully. Simplify the pruning of register unit sets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154474 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Optimize code a bit by calling push_back only once in some loops. Reduces ↵Craig Topper
compiled code size a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154473 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Match (fneg (fma) to vfnma. rdar://10139676Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154469 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Add retw and lretw instructions. Also, fix Intel syntax parsing for allCharles Davis
ret instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154468 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Merge fma.ll into fusedMAC.llEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154466 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Fix ARM disassembly of VLD instructions with writebacks.  And add test a caseKevin Enderby
for all opcodes handed by DecodeVLDInstruction() in ARMDisassembler.cpp . git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11ARM add missing Thumb1 two-operand aliases for shift-by-immediate.Jim Grosbach
rdar://11222742 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154457 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Fix a number of problems with ARM fused multiply add/subtract instructions.Evan Cheng
1. The new instruction itinerary entries are not properly described. 2. The asm parser can't handle vfms and vfnms. 3. There were no assembler, disassembler test cases. 4. HasNEON2 has the wrong assembler predicate. rdar://10139676 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Tweak MachineLICM heuristics for cheap instructions.Jakob Stoklund Olesen
Allow cheap instructions to be hoisted if they are register pressure neutral or better. This happens if the instruction is the last loop use of another virtual register. Only expensive instructions are allowed to increase loop register pressure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Only check for PHI uses inside the current loop.Jakob Stoklund Olesen
Hoisting a value that is used by a PHI in the loop will introduce a copy because the live range is extended to cross the PHI. The same applies to PHIs in exit blocks. Also use this opportunity to make HasLoopPHIUse() non-recursive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154454 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11Fix test to be register assignment invariant.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154453 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10TableGen/reginfo potential bug: typo from previous checkin.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Move the constant-folding support for FP_ROUND in SelectionDAG from the ↵Owen Anderson
one-operand version of getNode() to the two-operand version, since it became a two-operand node at sound point. Zap a testcase that this allows us to completely fold away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154447 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10llvm-stress: stop abusing ConstantFP::get()Dylan Noblesmith
ConstantFP::get(Type*, double) is unreliably host-specific: it can't handle a type like PPC128 on an x86 host. It even has a comment to that effect: "This should only be used for simple constant values like 2.0/1.0 etc, that are known-valid both as host double and as the target format." Instead, use APFloat. While we're at it, randomize the floating point value more thoroughly; it was previously limited to the range 0 to 2**19 - 1. PR12451. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154446 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10llvm-stress: don't make vectors of x86_mmx typeDylan Noblesmith
LangRef.html says: "There are no arrays, vectors or constants of this type." This was hitting assertions when passing the -generate-x86-mmx option. PR12452. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154445 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10[tsan] two more compile-time optimizations:Kostya Serebryany
- don't isntrument reads from constant globals. Saves ~1.5% of instrumented instructions on CPU2006 (counting static instructions, not their execution). - don't insrument reads from vtable (which is a global constant too). Saves ~5%. I did not measure the run-time impact of this, but it is certainly non-negative. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154444 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Handle llvm.fma.* intrinsics. rdar://10914096Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154439 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Add a comment noting that the fdiv -> fmul conversion won't generateDuncan Sands
multiplication by a denormal, and some tests checking that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10The MDString class stored a StringRef to the string which was already in aBill Wendling
StringMap. This was redundant and unnecessarily bloated the MDString class. Because the MDString class is a "Value" and will never have a "name", and because the Name field in the Value class is a pointer to a StringMap entry, we repurpose the Name field for an MDString. It stores the StringMap entry in the Name field, and uses the normal methods to get the string (name) back. PR12474 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Whitespace.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154427 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Revert r154396, which looks to be the real culprit behind the bot failures.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154426 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Temporarily revert this patch to see if it brings the buildbots back.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154425 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10[tsan] compile-time instrumentation: do not instrument a read ifKostya Serebryany
a write to the same temp follows in the same BB. Also add stats printing. On Spec CPU2006 this optimization saves roughly 4% of instrumented reads (which is 3% of all instrumented accesses): Writes : 161216 Reads : 446458 Reads-before-write: 18295 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154418 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10To ensure that we have more accurate line information for a blockEric Christopher
don't elide the branch instruction if it's the only one in the block, otherwise it's ok. PR9796 and rdar://11215207 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154417 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Revert r154397, which was causing make check failures on the buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154414 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10ARM fix cc_out operand handling for t2SUBrr instructions.Jim Grosbach
We were incorrectly conflating some add variants which don't have a cc_out operand with the mirroring sub encodings, which do. Part of the awesome non-orthogonality legacy of thumb1. Similarly, handling of add/sub of an immediate was sometimes incorrectly removing the cc_out operand for add/sub register variants. rdar://11216577 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154411 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Remove unused variable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154398 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Fix a dagcombine optimization which assumes that the vsetcc result type is ↵Nadav Rotem
always of the same size as the compared values. This is ture for SSE/AVX/NEON but not for all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154397 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Modify the code that lowers shuffles to blends from using blendvXX to vblendXX.Nadav Rotem
blendv uses a register for the selection while vblend uses an immediate. On sandybridge they still have the same latency and execute on the same execution ports. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154396 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Make a somewhat subtle change in the logic of block placement. SometimesChandler Carruth
the loop header has a non-loop predecessor which has been pre-fused into its chain due to unanalyzable branches. In this case, rotating the header into the body of the loop in order to place a loop exit at the bottom of the loop is a Very Bad Idea as it makes the loop non-contiguous. I'm working on a good test case for this, but it's a bit annoynig to craft. I should get one shortly, but I'm submitting this now so I can begin the (lengthy) performance analysis process. An initial run of LNT looks really, really good, but there is too much noise there for me to trust it much. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154395 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Transform div to mul with reciprocal only when fp imm is legal.Anton Korobeynikov
This fixes PR12516 and uncovers one weird problem in legalize (workarounded) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154394 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Use the correct section types on Solaris for unwind data on both x86 and x86-64.David Chisnall
Patch by Dmitri Shubin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154391 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Express the number of ULPs in fpaccuracy metadata as a real rather than aDuncan Sands
rational number, eg as 2.5 rather than 5, 2. OK'd by Peter Collingbourne. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154387 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Fix 12513: Loop unrolling breaks with indirect branches.Andrew Trick
Take this opportunity to generalize the indirectbr bailout logic for loop transformations. CFG transformations will never get indirectbr right, and there's no point trying. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154386 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154385 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Fix for register pressure tables.Andrew Trick
Recent refactoring introduced a bug. Fix: added buildRegUnitSets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154382 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Add proper checks.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154379 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Make the code slightly more palatable.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154378 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Use std::includes instead of my own implementation.Andrew Trick
Jakob's review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Added a TargetRegisterInfo interface for accessing register pressure sets.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154375 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Added register unit sets to the target description.Andrew Trick
This is a new algorithm that finds sets of register units that can be used to model registers pressure. This handles arbitrary, overlapping register classes. Each register class is associated with a (small) list of pressure sets. These are the dimensions of pressure affected by the register class's liveness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154374 91177308-0d34-0410-b5e6-96231b3b80d8
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