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2010-11-17Second attempt at correct encodings for Thumb2 bitfield instructions.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119575 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Fix comment typo.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119573 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17These tests are looking for library function names thatDale Johannesen
appear to differ on Linux. Try to make them pass on Linux. Would be good for a Linux person to review this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119572 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Move SCEV::dominates and properlyDominates to ScalarEvolution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119570 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Change ARMGlobalMerge to keep BSS globals in separate pools.Bob Wilson
This completes the fixes for Radar 8673120. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Fix ARMGlobalMerge pass to check if globals are entirely within range.Bob Wilson
It is generally not sufficient to check if the starting offset is in range of the maximum offset that can be efficiently used for the target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119565 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Change the symbol for merged globals from "merged" to "_MergedGlobals".Bob Wilson
This makes it more clear that the symbol is an internal, compiler-generated name and gives a little more description about its contents. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Fix the ARMGlobalMerge pass to look at variable sizes instead of pointer sizes.Bob Wilson
It was mistakenly looking at the pointer type when checking for the size of global variables. This is a partial fix for Radar 8673120. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Move SCEV::isLoopInvariant and hasComputableLoopEvolution to be memberDan Gohman
functions of ScalarEvolution, in preparation for memoization and other optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119562 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Make the ARM BR_JTadd instruction an explicit pseudo and lower it properlyJim Grosbach
in the MC lowering process. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119559 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Avoid isel movcc of large immediates when the large immediate is available ↵Evan Cheng
in a register. These immediates aren't free. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Reference ScalarEvolution by name rather than directly in LICM,Dan Gohman
to avoid an unneeded dependence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119557 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Before replacing a phi node with a different value, itDuncan Sands
needs to be checked that this won't break LCSSA form. Change the existing checking method to a more direct one: rather than seeing if all predecessors belong to the loop, check that the replacing value is either not in any loop or is in a loop that contains the phi node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119556 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Revert r119551, which broke buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119555 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Verify SCEVAddRecExpr's invariant in ScalarEvolution::getAddRecExprDan Gohman
instead of in SCEVAddRecExpr's constructor, in preparation for an upcoming change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119554 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Provide Thumb2 encodings for bitfield instructions.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119551 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Fix ScalarEvolution's range memoization to avoid using aDan Gohman
default ctor with ConstantRange. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119550 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,Evan Cheng
and xor. The 32-bit move immediates can be hoisted out of loops by machine LICM but the isel hacks were preventing them. Instead, let peephole optimization pass recognize registers that are defined by immediates and the ARM target hook will fold the immediates in. Other changes include 1) do not fold and / xor into cmp to isel TST / TEQ instructions if there are multiple uses. This happens when the 'and' is live out, machine sink would have sinked the computation and that ends up pessimizing code. The peephole pass would recognize situations where the 'and' can be toggled to define CPSR and eliminate the comparison anyway. 2) Move peephole pass to after machine LICM, sink, and CSE to avoid blocking important optimizations. rdar://8663787, rdar://8241368 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119548 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17make isVirtualSection a virtual method on MCSection. Chris' suggestion.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119547 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17More miscellaneous Thumb2 encodings.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119546 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17add some justification for "using namespace llvm;"Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119544 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Fix typo.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Add missing opcodes now that this function's used in more than one place.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17InstCombine: Add a missing irem identity (X % X -> 0).Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Move some those Xor simplifications which don't require creating newDuncan Sands
instructions out of InstCombine and into InstructionSimplify. While there, introduce an m_AllOnes pattern to simplify matching with integers and vectors with all bits equal to one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17More ARM encoding bits. LDRH now encodes properly.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17various cleanups and other improvements, patch by Zhanyong Wan!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119515 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Add support for .int.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119512 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Add support for .2byte, .4byte and .8byte.Rafael Espindola
Fixes PR8631. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17MC-JIT: Stub out "pure" streamer.Daniel Dunbar
- No immediate use, but maybe someone feels like hacking on it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119510 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17MCJIT: Stub out MCJIT implementation, still doesn't do anything useful.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17lli: Add stub -use-mcjit option, which doesn't currently do anything.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119508 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Have InlineFunction use SimplifyInstruction rather thanDuncan Sands
hasConstantValue. I was leery of using SimplifyInstruction while the IR was still in a half-baked state, which is the reason for delaying the simplification until the IR is fully cooked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Now that hasConstantValue has been made simpler, it may return theDuncan Sands
phi node itself if it occurs in an unreachable basic block. Protect against this. Hopefully this will fix some more buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Revert r119109 for now. It's breaking 176.gcc.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Previously SimplifyInstruction could report that an instructionDuncan Sands
simplified to itself (this can only happen in unreachable blocks). Change it to return null instead. Hopefully this will fix some buildbot failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17With the newly simplified SourceMgr interfaces and the generalizedChris Lattner
SrcMgrDiagHandler, we can improve clang diagnostics for inline asm: instead of reporting them on a source line of the original line, we can report it on the correct line wherever the string literal came from. For something like this: void foo() { asm("push %rax\n" ".code32\n"); } we used to get this: (note that the line in t.c isn't helpful) t.c:4:7: error: warning: ignoring directive for now asm("push %rax\n" ^ <inline asm>:2:1: note: instantiated into assembly here .code32 ^ now we get: t.c:5:8: error: warning: ignoring directive for now ".code32\n" ^ <inline asm>:2:1: note: instantiated into assembly here .code32 ^ Note that we're pointing to line 5 properly now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17now that AsmPrinter::EmitInlineAsm is factored right, we can eliminate theChris Lattner
cookie argument to the SourceMgr diagnostic stuff. This cleanly separates LLVMContext's inlineasm handler from the sourcemgr error handling definition, increasing type safety and cleaning things up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Add simple arithmetics and %type directive for PTXChe-Liang Chiou
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119485 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Simplify code that toggle optional operand to ARM::CPSR.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17rearrange how the handler in SourceMgr is installed, eliminating the use of Chris Lattner
the cookie argument to setDiagHandler git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17refactor the interface to EmitInlineAsm a bit, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17fix PR8613 - Copy constructor of SwitchInst does not call SwitchInst::initChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17tidy upChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119462 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17The machine instruction no longer encodes the submode as a separate operand. WeBill Wendling
should get the submode from the load/store multiple instruction's opcode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Proper encoding for VLDM and VSTM instructions. The register lists for theseBill Wendling
instructions have to distinguish between lists of single- and double-precision registers in order for the ASM matcher to do a proper job. In all other respects, a list of single- or double-precision registers are the same as a list of GPR registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119460 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Fix a layering violation: hasConstantValue, which is part of the PHINodeDuncan Sands
class, uses DominatorTree which is an analysis. This change moves all of the tricky hasConstantValue logic to SimplifyInstruction, and replaces it with a very simple literal implementation. I already taught users of hasConstantValue that need tricky stuff to use SimplifyInstruction instead. I didn't update InlineFunction because the IR looks like it might be in a funky state at the point it calls hasConstantValue, which makes calling SimplifyInstruction dangerous since it can in theory do a lot of tricky reasoning. This may be a pessimization, for example in the case where all phi node operands are either undef or a fixed constant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Have ScalarEvolution use SimplifyInstruction rather than hasConstantValue.Duncan Sands
While there, add a note about an inefficiency I noticed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Have RemovePredecessorAndSimplify you SimplifyInstructionDuncan Sands
rather than hasConstantValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Remove dead code in GVN: now that SimplifyInstruction is calledDuncan Sands
systematically, CollapsePhi will always return null here. Note that CollapsePhi did an extra check, isSafeReplacement, which the SimplifyInstruction logic does not do. I think that check was bogus - I guess we will soon find out! (It was originally added in commit 41998 without a testcase). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119456 91177308-0d34-0410-b5e6-96231b3b80d8
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