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path: root/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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2011-03-26Turn SelectionDAGBuilder::GetRegistersForValue into a local function.Benjamin Kramer
It couldn't be used outside of the file because SDISelAsmOperandInfo is local to SelectionDAGBuilder.cpp. Making it a static function avoids a weird linkage dance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128342 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17Move more logic into getTypeForExtArgOrReturn.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17Rename getTypeForExtendedInteger() to getTypeForExtArgOrReturn().Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127807 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16The x86-64 ABI says that a bool is only guaranteed to be sign-extended to a byteCameron Zwarich
rather than an int. Thankfully, this only causes LLVM to miss optimizations, not generate incorrect code. This just fixes the zext at the return. We still insert an i32 ZextAssert when reading a function's arguments, but it is followed by a truncate and another i8 ZextAssert so it is not optimized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127766 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16Don't recompute something that we already have in a local variable.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127764 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11Replace -dag-chain-limit flag with constant. It has survived a release cycle ↵Andrew Trick
without being touched, so no longer needs to pollute the hidden-help text. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25Allow targets to specify a the type of the RHS of a shift parameterized on ↵Owen Anderson
the type of the LHS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25Fix formatting of debug helper string.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126471 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24Refactor the LiveOutInfo interface into a few methods on FunctionLoweringInfoCameron Zwarich
and make the actual map private. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126376 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Roll out r126169 and r126170 in an attempt to fix the selfhost bot.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126185 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Merge information about the number of zero, one, and sign bits of live-out ↵Cameron Zwarich
registers at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine phase. This fixes <rdar://problem/8760114>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Do not lose debug info of an inlined function argument even if the argument ↵Devang Patel
is only used through GEPs. This time with a fix that avoids using invalidated DenseMap iterator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Do not lose debug info of an inlined function argument even if the argument ↵Devang Patel
is only used through GEPs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15convert ConstantVector::get to use ArrayRef.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14revert my ConstantVector patch, it seems to have made the llvm-gccChris Lattner
builders unhappy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125504 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Switch ConstantVector::get to use ArrayRef instead of a pointer+sizeChris Lattner
idiom. Change various clients to simplify their code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125487 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-13Revisit my fix for PR9028: the issue is that DAGCombine was Chris Lattner
generating i8 shift amounts for things like i1024 types. Add an assert in getNode to prevent this from occuring in the future, fix the buggy transformation, revert my previous patch, and document this gotcha in ISDOpcodes.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125465 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-13when legalizing extremely wide shifts, make sure that Chris Lattner
the shift amounts are in a suitably wide type so that we don't generate out of range constant shift amounts. This fixes PR9028. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125458 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-13fix visitShift to properly zero extend the shift amount if the provided operandChris Lattner
is narrower than the shift register. Doing an anyext provides undefined bits in the top part of the register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125457 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-28Fix build with stdcxx by using llvm::next. Patch by Joerg Sonnenberger!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124472 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Resolve DanglingDbgValue of PHI nodes where the use follows dbg.value ↵Devang Patel
intrinisic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124203 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24Speculatively revert r124138.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124142 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24Resolve DanglingDbgValue of PHI nodes where the use follows dbg.value ↵Devang Patel
intrinisic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs ↵Anton Korobeynikov
and fixes here and there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.Jakob Stoklund Olesen
These functions not longer assert when passed 0, but simply return false instead. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-08Use an IndexedMap for LiveOutRegInfo to hide its dependence on ↵Jakob Stoklund Olesen
TargetRegisterInfo::FirstVirtualRegister. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123096 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-07Do not model all INLINEASM instructions as having unmodelled side effects.Evan Cheng
Instead encode llvm IR level property "HasSideEffects" in an operand (shared with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check the operand when the instruction is an INLINEASM. This allows memory instructions to be moved around INLINEASM instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123044 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-07Add ARM patterns to match EXTRACT_SUBVECTOR nodes.Bob Wilson
Also fix an off-by-one in SelectionDAGBuilder that was preventing shuffle vectors from being translated to EXTRACT_SUBVECTOR. Patch by Tim Northover. The test changes are needed to keep those spill-q tests from testing aligned spills and restores. If the only aligned stack objects are spill slots, we no longer realign the stack frame. Prior to this patch, an EXTRACT_SUBVECTOR was legalized by loading from the stack, which created an aligned frame index. Now, however, there is nothing except the spill slot in the stack frame, so I added an aligned alloca. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122995 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06Avoid zero extend bit test operands to pointer type if all the masks fit inEvan Cheng
the original type of the switch statement key. rdar://8781238 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21rename MVT::Flag to MVT::Glue. "Flag" is a terrible name forChris Lattner
something that just glues two nodes together, even if it is sometimes used for flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13reduce indentation by using continue, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121662 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() andJay Foad
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method trunc(), to be const and to return a new value instead of modifying the object in place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG ↵Devang Patel
message instead of creating DBG_VALUE for undefined value in reg0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121059 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30add TLI support indicating that jumps are more expensive than logical operationsChris Lattner
and use this to disable a specific optimization. Patch by Micah Villmow! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120435 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.Wesley Peck
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization.Benjamin Kramer
This currently only catches the most basic case, a two-case switch, but can be extended later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20Removing the useless test that I added recently. It was meant as an example, ↵Andrew Trick
but not complicated enough to merit another test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119898 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17Bug 8621 fix - pointer cast stripped from inline asm constraint argument.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12typo (4th checkin for one fix)Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118913 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12Fixes PR8287: SD scheduling time. The fix is a failsafe that preventsAndrew Trick
catastrophic compilation time in the event of unreasonable LLVM IR. Code quality is a separate issue--someone upstream needs to do a better job of reducing to llvm.memcpy. If the situation can be reproduced with any supported frontend, then it will be a separate bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118904 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12tidy up.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118896 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Inside the calling convention logic LocVT is always a simpleDuncan Sands
value type, so there is no point in passing it around using an EVT. Use the simpler MVT everywhere. Rather than trying to propagate this information maximally in all the code that using the calling convention stuff, I chose to do a mainly low impact change instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118167 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02If value map does not have register for an argument then try to find frame ↵Devang Patel
index before giving up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02Use frameindex, if available, as a last resort to emit debug info for a ↵Devang Patel
parameter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Inline asm multiple alternative constraints development phase 2 - improved ↵John Thompson
basic logic, added initial platform support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Use a MemIntrinsicSDNode for ISD::PREFETCH, which touchesDale Johannesen
memory, so a MachineMemOperand is useful (not propagated into the MachineInstr yet). No functional change except for dump output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26Assign source ordering to nodes created for StoreInst.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117404 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21X86: Base _fltused on the FunctionType of the called value instead of the ↵Michael J. Spencer
potentially null "CalledFunction". Thanks Duncan! This is needed for indirect calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117061 91177308-0d34-0410-b5e6-96231b3b80d8
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