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2012-10-16Remove unused BitVectors from getAllocatableSet().Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165999 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Remove RegisterClassInfo::isReserved() and isAllocatable().Jakob Stoklund Olesen
Clients can use the equivalent functions in MRI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165990 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Add __builtin_setjmp/_longjmp supprt in X86 backendMichael Liao
- Besides used in SjLj exception handling, __builtin_setjmp/__longjmp is also used as a light-weight replacement of setjmp/longjmp which are used to implementation continuation, user-level threading, and etc. The support added in this patch ONLY addresses this usage and is NOT intended to support SjLj exception handling as zero-cost DWARF exception handling is used by default in X86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165989 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Remove LIS::isAllocatable() and isReserved() helpers.Jakob Stoklund Olesen
All callers can simply use the corresponding MRI functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165985 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Switch most getReservedRegs() clients to the MRI equivalent.Jakob Stoklund Olesen
Using the cached bit vector in MRI avoids comstantly allocating and recomputing the reserved register bit vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165983 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Freeze the reserved registers as soon as isel is complete.Jakob Stoklund Olesen
Also provide an MRI::getReservedRegs() function to access the frozen register set, and isReserved() and isAllocatable() methods to test individual registers. The various implementations of TRI::getReservedRegs() are quite complicated, and many passes need to look at the reserved register set. This patch makes it possible for these passes to use the cached copy in MRI, avoiding a lot of malloc traffic and repeated calculations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165982 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15ARM: v1i64 and v2i64 VBSL intrinsic support.Jim Grosbach
rdar://12502028 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165981 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Merge commit 'bb20b24224734f5369d124181d086703ca439dd7'Derek Schuff
Conflicts: lib/Target/X86/X86FrameLowering.cpp lib/Target/X86/X86ISelLowering.cpp
2012-10-15Move the Attributes::Builder outside of the Attributes class and into its ↵Bill Wendling
own class named AttrBuilder. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165960 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15[ms-inline asm] If we parsed a statement and the opcode is valid, then it's ↵Chad Rosier
an instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165955 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Make sure we iterate over newly created instructions. Fixes pr13625. Testcase toRafael Espindola
follow in one sec. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165951 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15misched: ILP scheduler for experimental heuristics.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165950 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15[ms-inline asm] Update the end loc for ParseIntelMemOperand.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165947 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15[ms-inline asm] Add a few new APIs to the AsmParser class in support of MS-StyleChad Rosier
inline assembly. For the time being, these will be called directly by clang. However, in the near future I expect these to be sunk back into the MC layer and more basic APIs (e.g., getClobbers(), getConstraints(), etc.) will be called by clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165946 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15[ms-inline asm] Use incoming argument rather than hard coding to false.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165945 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Resubmit the changes to llvm core to update the functions to support ↵Micah Villmow
different pointer sizes on a per address space basis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165941 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15PowerPC: add EmitTCEntry class for TOC creationAdhemerval Zanella
This patch replaces the EmitRawText by a EmitTCEntry class (specialized for each Streamer) in PowerPC64 TOC entry creation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165940 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15[asan] make AddressSanitizer to be a FunctionPass instead of ModulePass. ↵Kostya Serebryany
This will simplify chaining other FunctionPasses with asan. Also some minor cleanup git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165936 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Update the memcpy rewriting to fully support widened int rewriting. ThisChandler Carruth
includes extracting ints for copying elsewhere and inserting ints when copying into the alloca. This should fix the CanSROA assertion coming out of Clang's regression test suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165931 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Follow-up fix to r165928: handle memset rewriting for widened integers,Chandler Carruth
and generally clean up the memset handling. It had rotted a bit as the other rewriting logic got polished more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165930 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Fixed PR13938: the ARM backend was crashing because it couldn't select a ↵Silviu Baranga
VDUPLANE node with the vector input size different from the output size. This was bacause the BUILD_VECTOR lowering code didn't check that the size of the input vector was correct for using VDUPLANE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165929 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15First major step toward addressing PR14059. This teaches SROA to handleChandler Carruth
cases where we have partial integer loads and stores to an otherwise promotable alloca to widen[1] those loads and stores to cover the entire alloca and bitcast them into the appropriate type such that promotion can proceed. These partial loads and stores stem from an annoying confluence of ARM's calling convention and ABI lowering and the FCA pre-splitting which takes place in SROA. Clang lowers a { double, double } in-register function argument as a [4 x i32] function argument to ensure it is placed into integer 32-bit registers (a really unnerving implicit contract between Clang and the ARM backend I would add). This results in a FCA load of [4 x i32]* from the { double, double } alloca, and SROA decomposes this into a sequence of i32 loads and stores. Inlining proceeds, code gets folded, but at the end of the day, we still have i32 stores to the low and high halves of a double alloca. Widening these to be i64 operations, and bitcasting them to double prior to loading or storing allows promotion to proceed for these allocas. I looked quite a bit changing the IR which Clang produces for this case to be more friendly, but small changes seem unlikely to help. I think the best representation we could use currently would be to pass 4 i32 arguments thereby avoiding any FCAs, but that would still require this fix. It seems like it might eventually be nice to somehow encode the ABI register selection choices outside of the parameter type system so that the parameter can be a { double, double }, but the CC register annotations indicate that this should be passed via 4 integer registers. This patch does not address the second problem in PR14059, which is the reverse: when a struct alloca is loaded as a *larger* single integer. This patch also does not address some of the code quality issues with the FCA-splitting. Those don't actually impede any optimizations really, but they're on my list to clean up. [1]: Pedantic footnote: for those concerned about memory model issues here, this is safe. For the alloca to be promotable, it cannot escape or have any use of its address that could allow these loads or stores to be racing. Thus, widening is always safe. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165928 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Hoist the canConvertValue predicate and the convertValue transform outChandler Carruth
into static helper functions. They're really quite generic and are going to be needed elsewhere shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165927 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Add an enum for the return and function indexes into the AttrListPtr object. ↵Bill Wendling
This gets rid of some magic numbers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165924 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Use a ::get method to create the attribute from Attributes::AttrVals instead ↵Bill Wendling
of a constructor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165923 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Move the AttributesImpl header file into the VMCore directory so that it can ↵Bill Wendling
be opaque. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165920 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Attributes RewriteBill Wendling
Convert the internal representation of the Attributes class into a pointer to an opaque object that's uniqued by and stored in the LLVMContext object. The Attributes class then becomes a thin wrapper around this opaque object. Eventually, the internal representation will be expanded to include attributes that represent code generation options, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165917 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15instcombine: Migrate strcmp and strncmp optimizationsMeador Inge
This patch migrates the strcmp and strncmp optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165915 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Simplify code. No functionality change.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165904 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Unquadratize SetVector removal loops in DSE.Benjamin Kramer
Erasing from the beginning or middle of the vector is expensive, remove_if can do it in linear time even though it's a bit ugly without lambdas. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165903 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove dead methods.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165902 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove operator cast method in favor of querying with the correct method.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165899 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Fix use after free when deleting attributes in a chained folding set.Benjamin Kramer
Can't follow the intrusive linked list when the element is gone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165898 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Don't use the new syntax just yet.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165897 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise AND operators from the Attributes class. Replace it with ↵Bill Wendling
the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165896 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise assignment OR operator from the Attributes class. Replace ↵Bill Wendling
it with the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165895 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise OR operator from the Attributes class. Replace it with ↵Bill Wendling
the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165894 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise XOR operator from the Attributes class. Replace it with ↵Bill Wendling
the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165893 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise NOT operator from the Attributes class. Replace it with ↵Bill Wendling
the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165892 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Decode the LLVM attributes from bitcode using the attributes builder.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165891 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Use builder to create alignment attributes. Remove dead function.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165890 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Don't pass in an Attributes object to something that expects an integral value.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165887 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13Remove unused private field.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165881 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13X86: Disable long nops for all cpus prior to pentiumpro/i686.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165878 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13Drop <def,dead> flags when merging into an unused lane.Jakob Stoklund Olesen
The new coalescer can merge a dead def into an unused lane of an otherwise live vector register. Clear the <dead> flag when that happens since the flag refers to the full virtual register which is still live after the partial dead def. This fixes PR14079. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165877 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13instcombine: Migrate strchr and strrchr optimizationsMeador Inge
This patch migrates the strchr and strrchr optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165875 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13instcombine: Migrate strcat and strncat optimizationsMeador Inge
This patch migrates the strcat and strncat optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165874 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13Implement new LibCallSimplifier classMeador Inge
This patch implements the new LibCallSimplifier class as outlined in [1]. In addition to providing the new base library simplification infrastructure, all the fortified library call simplifications were moved over to the new infrastructure. The rest of the library simplification optimizations will be moved over with follow up patches. NOTE: The original fortified library call simplifier located in the SimplifyFortifiedLibCalls class was not removed because it is still used by CodeGenPrepare. This class will eventually go away too. [1] http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-August/052283.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165873 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13Allow for loops in LiveIntervals::pruneValue().Jakob Stoklund Olesen
It is possible that the live range of the value being pruned loops back into the kill MBB where the search started. When that happens, make sure that the beginning of KillMBB is also pruned. Instead of starting a DFS at KillMBB and skipping the root of the search, start a DFS at each KillMBB successor, and allow the search to loop back to KillMBB. This fixes PR14078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165872 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13X86: Fix accidentally swapped operands.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165871 91177308-0d34-0410-b5e6-96231b3b80d8
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