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* Remove unneeded check, and correct style.Owen Anderson2010-07-151-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108427 91177308-0d34-0410-b5e6-96231b3b80d8
* Watch out for a constant offset cancelling out a base register, formingDan Gohman2010-07-151-2/+9
| | | | | | | | a zero. This situation arrises in Fortran code with induction variables that start at 1 instead of 0. This fixes PR7651. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108424 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r108378, with bugfixes, testcase, and improved comment formatting.Owen Anderson2010-07-152-0/+47
| | | | | | | This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108422 91177308-0d34-0410-b5e6-96231b3b80d8
* cache another dereferenced iteratorGabor Greif2010-07-151-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108421 91177308-0d34-0410-b5e6-96231b3b80d8
* revert bill's patches in an attempt to fix the buildbot.Chris Lattner2010-07-154-27/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108419 91177308-0d34-0410-b5e6-96231b3b80d8
* This is a full sentence.Nick Lewycky2010-07-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108418 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable aliases on all platforms.Nick Lewycky2010-07-151-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108417 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR7647, handling the case when 'To' ends up being Chris Lattner2010-07-151-14/+34
| | | | | | | | | | | mutated by recursive simplification. This also enhances ReplaceAndSimplifyAllUses to actually do a real RAUW at the end of it, which updates any value handles pointing to "From" to start pointing to "To". This seems useful for debug info and random other VH users. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108415 91177308-0d34-0410-b5e6-96231b3b80d8
* make various clients of ReplaceAndSimplifyAllUses tolerate Chris Lattner2010-07-151-2/+3
| | | | | | | | | it *changing* the things it replaces, not just causing them to drop to null. There is no functionality change yet, but this is required for a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108414 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix headers.Bill Wendling2010-07-152-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108413 91177308-0d34-0410-b5e6-96231b3b80d8
* Use std::vector instead of a hard-coded array. The length of that array couldBill Wendling2010-07-152-17/+20
| | | | | | | get *very* large, but we only need it to be the size of the number of pregs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108412 91177308-0d34-0410-b5e6-96231b3b80d8
* Use std::vector instead of a hard-coded array. The length of that array couldBill Wendling2010-07-152-6/+8
| | | | | | | get *very* large, but we only need it to be the size of thenumber of pregs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108411 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r108401; it breaks bootstrap :(Eli Friedman2010-07-151-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108407 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AssertingVH which makes PR7647 break consistently.Eli Friedman2010-07-151-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108401 91177308-0d34-0410-b5e6-96231b3b80d8
* Random note about bswap.Eli Friedman2010-07-151-0/+26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108396 91177308-0d34-0410-b5e6-96231b3b80d8
* a more graceful fix for test/Other/inline-asm-newline-terminator.ll,Chris Lattner2010-07-152-15/+1
| | | | | | | follow on to r103765 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108390 91177308-0d34-0410-b5e6-96231b3b80d8
* Speculatively revert r108378; may be causing bootstrap failures.Eli Friedman2010-07-152-43/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108389 91177308-0d34-0410-b5e6-96231b3b80d8
* Last COPY conversion.Jakob Stoklund Olesen2010-07-141-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108387 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove restriction on NEON alignment values. Some of the NEON ld/stBob Wilson2010-07-143-9/+4
| | | | | | | | instructions use different values (e.g., 2-byte or 4-byte alignment). Also fix ARMInstPrinter to print these alignments as bits instead of bytes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108386 91177308-0d34-0410-b5e6-96231b3b80d8
* Use TargetOpcode::COPY instead of X86-native register copy instructions whenJakob Stoklund Olesen2010-07-142-30/+27
| | | | | | | lowering atomics. This will allow those copies to still be coalesced after TII::isMoveInstr is removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108385 91177308-0d34-0410-b5e6-96231b3b80d8
* 80-col.Eric Christopher2010-07-141-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108381 91177308-0d34-0410-b5e6-96231b3b80d8
* Add instcombine transforms to optimize tests of multiple bits of the same ↵Owen Anderson2010-07-142-0/+43
| | | | | | value into a single larger comparison. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108378 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the order in which variables are described in debug informationDan Gohman2010-07-141-0/+23
| | | | | | | | | independent of the order that isel happens to visit the dbg_declare intrinsics. This fixes a bug in which the formal arguments were being printed in reverse order, now that fast isel is going bottom up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108369 91177308-0d34-0410-b5e6-96231b3b80d8
* fix indentationChris Lattner2010-07-141-9/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108368 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't pass StringRef by reference.Benjamin Kramer2010-07-1430-55/+54
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108366 91177308-0d34-0410-b5e6-96231b3b80d8
* Properly restore DebugLoc after leaving the local constant area.Dan Gohman2010-07-141-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108364 91177308-0d34-0410-b5e6-96231b3b80d8
* Just use getParent() instead of getModuleFromVal when the value is a Function.Dan Gohman2010-07-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108358 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename WriteConstantInt to WriteConstantInternal, to avoid confusion.Dan Gohman2010-07-141-4/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108357 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend SimplifyCFG's common-destination folding heuristic to allow a singleOwen Anderson2010-07-141-5/+67
| | | | | | | | | | | "bonus" instruction to be speculatively executed. Add a heuristic to ensure we're not tripping up out-of-order execution by checking that this bonus instruction only uses values that were already guaranteed to be available. This allows us to eliminate the short circuit in (x&1)&&(x&2). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108351 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out metadata parsing into a separate function.Dan Gohman2010-07-142-27/+39
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108343 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge lib/Target/X86/X86COFF.h into include/llvm/Support/COFF.h,Chris Lattner2010-07-142-100/+8
| | | | | | | | patch by Michael Spencer! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108342 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve 64-subtraction of immediates when parts of the immediate can fitJim Grosbach2010-07-142-11/+40
| | | | | | | | | | | | | in the literal field of an instruction. E.g., long long foo(long long a) { return a - 734439407618LL; } rdar://7038284 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108339 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete fast-isel's trivial load optimization; it breaks debugging becauseDan Gohman2010-07-141-31/+0
| | | | | | | it can look past points where a debugger might modify user variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108336 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing address register update to t2LDM_RET instruction.Bob Wilson2010-07-141-1/+1
| | | | | | | Patch by Brian Lucas. PR7636. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108332 91177308-0d34-0410-b5e6-96231b3b80d8
* Rather than using an ifdef on the target to zero out fields,Duncan Sands2010-07-141-4/+1
| | | | | | | just use memset to zero the entire struct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108330 91177308-0d34-0410-b5e6-96231b3b80d8
* A couple potential optimizations inspired by comment 4 in PR6773.Eli Friedman2010-07-141-0/+41
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108328 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for PR7193 was overly conservative. The only case where sibcall calleeEvan Cheng2010-07-141-6/+12
| | | | | | | | | | | address cannot be allocated a register is in 32-bit mode where the first three arguments are marked inreg. In that case EAX, EDX, and ECX will be used for argument passing. This fixes PR7610. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108327 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for NEON VMVN immediate instructions.Bob Wilson2010-07-143-7/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108324 91177308-0d34-0410-b5e6-96231b3b80d8
* The bits in the cmode field of 32-bit VMOV immediate instructions all dependBob Wilson2010-07-141-2/+2
| | | | | | | of the value of the immediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108323 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r108320, I see the failures now...Chris Lattner2010-07-141-8/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108322 91177308-0d34-0410-b5e6-96231b3b80d8
* reapply benjamin's instcombine patch, I don't see anything wrong with it and ↵Chris Lattner2010-07-141-0/+8
| | | | | | can't repro any problems with a manual self-host. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108320 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a bug found by a warning I added to clang this morning.Chris Lattner2010-07-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108309 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach ProcessImplicitDefs to transform more COPY instructions into ↵Evan Cheng2010-07-142-20/+43
| | | | | | IMPLICIT_DEF (and subsequently eliminate them). This allows machine LICM to hoist IMPLICIT_DEF's. PR7620. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108304 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an ARM-specific DAG combining to avoid redundant VDUPLANE nodes.Bob Wilson2010-07-141-0/+29
| | | | | | | Radar 7373643. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108303 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't propagate debug locations to instructions for materializingDan Gohman2010-07-142-6/+9
| | | | | | | | constants, since they may not be emited near the other instructions which get the same line, and this confuses debug info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108302 91177308-0d34-0410-b5e6-96231b3b80d8
* Add AVX 256-bit compare instructions and a bunch of testcasesBruno Cardoso Lopes2010-07-131-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108286 91177308-0d34-0410-b5e6-96231b3b80d8
* Print VNInfo flags.Jakob Stoklund Olesen2010-07-131-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108277 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a target-specific VMOVIMM DAG node instead of BUILD_VECTOR to representBob Wilson2010-07-133-192/+78
| | | | | | | NEON VMOV-immediate instructions. This simplifies some things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108275 91177308-0d34-0410-b5e6-96231b3b80d8
* AVX 256-bit conversion instructionsBruno Cardoso Lopes2010-07-134-15/+105
| | | | | | | Add the x86 VEX_L form to handle special cases where VEX_L must be set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108274 91177308-0d34-0410-b5e6-96231b3b80d8
* In inline asm treat indirect 'X' constraint as 'm'.Dale Johannesen2010-07-131-3/+5
| | | | | | | | | This may not be right in all cases, but it's better than asserting which it was doing before. PR 7528. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108268 91177308-0d34-0410-b5e6-96231b3b80d8
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