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2008-10-21Implement the optimized FCMP_OEQ/FCMP_UNE code for x86 fast-isel.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57915 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Fix make check on Solaris 10/x86: the default grep is not GNU grep, same for as.Torok Edwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57912 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21use pre-UAL mnemonics for push/pop for compilaton callback functionJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21fix a tricky bug in the JIT global variable emitter, that was triggered when ↵Nuno Lopes
JITing a variable independently of a function. This lead to sharing memory memory between functions and GVs thus changing the value of a GV could change the code in execution. more details on the ML. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57900 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21constify some methods and variables in ImmutableList.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57894 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21really fix run lineChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57889 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21fix run lineChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57888 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21remove some unneeded eh generationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57887 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Disable constant-offset folding for PowerPC, as the PowerPC targetDan Gohman
isn't yet prepared for it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57886 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Don't create TargetGlobalAddress nodes with offsets that don't fitDan Gohman
in the 32-bit signed offset field of addresses. Even though this may be intended, some linkers refuse to relocate code where the relocated address computation overflows. Also, fix the sign-extension of constant offsets to use the actual pointer size, rather than the size of the GlobalAddress node, which may be different, for example on x86-64 where MVT::i32 is used when the address is being fit into the 32-bit displacement field. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57885 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Optimized FCMP_OEQ and FCMP_UNE for x86.Dan Gohman
Where previously LLVM might emit code like this: ucomisd %xmm1, %xmm0 setne %al setp %cl orb %al, %cl jne .LBB4_2 it now emits this: ucomisd %xmm1, %xmm0 jne .LBB4_2 jp .LBB4_2 It has fewer instructions and uses fewer registers, but it does have more branches. And in the case that this code is followed by a non-fallthrough edge, it may be followed by a jmp instruction, resulting in three branch instructions in sequence. Some effort is made to avoid this situation. To achieve this, X86ISelLowering.cpp now recognizes FCMP_OEQ and FCMP_UNE in lowered form, and replace them with code that emits two branches, except in the case where it would require converting a fall-through edge to an explicit branch. Also, X86InstrInfo.cpp's branch analysis and transform code now knows now to handle blocks with multiple conditional branches. It uses loops instead of having fixed checks for up to two instructions. It can now analyze and transform code generated from FCMP_OEQ and FCMP_UNE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57873 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21When the coalescer is doing rematerializing, have it removeDan Gohman
the copy instruction from the instruction list before asking the target to create the new instruction. This gets the old instruction out of the way so that it doesn't interfere with the target's rematerialization code. In the case of x86, this helps it find more cases where EFLAGS is not live. Also, in the X86InstrInfo.cpp, teach isSafeToClobberEFLAGS to check to see if it reached the end of the block after scanning each instruction, instead of just before. This lets it notice when the end of the block is only two instructions away, without doing any additional scanning. These changes allow rematerialization to clobber EFLAGS in more cases, for example using xor instead of mov to set the return value to zero in the included testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57872 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Make the NaN test come second, heuristically assumingDan Gohman
that NaNs are less common. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57871 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Use Function::getEntryBlock() instead of Function::front(), for clarity.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57870 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21CMake: updated lib/CodeGen/CMakeLists.txtOscar Fuentes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57869 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Fix a bug that prevented llvm-extract -delete from working.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57864 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-21Fix gcc.c-torture/compile/920520-1.c by inserting bitconvertsChris Lattner
for strange asm conditions earlier. In this case, we have a double being passed in an integer reg class. Convert to like sized integer register so that we allocate the right number for the class (two i32's for the f64 in this case). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57862 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Add skeleton for the pre-register allocation live interval splitting pass.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57847 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Update the stub and callback code to handle lazy compilation. The stubJim Grosbach
is re-written by the callback to branch directly to the compiled code in future invocations. Added back in range-based memory permission functions for the updating of the stub on Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57846 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Fast-isel no longer an experiment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57845 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Add a register class -> virtual registers map.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57844 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20This forward declaration is unnecessary.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57843 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Support operations like fp_to_uint with a vectorDuncan Sands
result type when the result type is legal but not the operand type. Add additional support for EXTRACT_SUBVECTOR and CONCAT_VECTORS, needed to handle such cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57840 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Teach getTypeToTransformTo to return somethingDuncan Sands
sensible for vectors being scalarized. Note that this method can't return anything very sensible when splitting non-power-of-two vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57839 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20LegalizeTypes support for atomic operation promotion.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Use DAG.getIntPtrConstant rather than DAG.getConstantDuncan Sands
with TLI.getPointerTy for a small simplification. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Always use either MVT::i1 or getSetCCResultType forDuncan Sands
the condition of a SELECT node. Make sure that the correct extension type (any-, sign- or zero-extend) is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Formatting - no functional change.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57834 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Don't use a random type for the select condition,Duncan Sands
use an MVT::i1 and simplify the code while there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57833 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Fix a typo in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57832 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Have X86 custom lowering for LegalizeTypes useDuncan Sands
LowerOperation if it doesn't know what else to do. This methods should probably be factorized some, but this is good enough for the moment. Have LowerATOMIC_BINARY_64 use EXTRACT_ELEMENT rather than assuming the operand is a BUILD_PAIR (if it is then getNode will automagically simplify the EXTRACT_ELEMENT). This way LowerATOMIC_BINARY_64 usable from LegalizeTypes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57831 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Fix typo in a comment.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57829 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Remove another stale comment.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57828 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Remove an inappropriate (probably outdated) comment.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57827 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-20Fix spelling error.Matthijs Kooijman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57820 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-19Set N->OperandList to 0 after deletion. Otherwise, it's possible that it willBill Wendling
be either deleted or referenced afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57786 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-19Fix comment. Other formatting changes. No functionality changes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-19Vector shuffle mask elements may be "undef". HandleDuncan Sands
this everywhere in LegalizeTypes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57783 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-19Use a legal integer type for vector shuffle maskDuncan Sands
elements. Otherwise LegalizeTypes will, reasonably enough, legalize the mask, which may result in it no longer being a BUILD_VECTOR node (LegalizeDAG simply ignores the legality or not of vector masks). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18Reapply r57699 with a fix to not crash on asms with multiple results. UnlikeChris Lattner
the previous patch this one actually passes make check. "Fix PR2356 on PowerPC: if we have an input and output that are tied together that have different sizes (e.g. i32 and i64) make sure to reserve registers for the bigger operand." git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57771 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18Don't truncate GlobalAddress offsets to int in debug output.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57770 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18By min, I mean max.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57766 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18When creating intervals, leave min(1, numdefs) holes after each instruction.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57765 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18Make llvm memory barrier available as an intrinsicMon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18Teach DAGCombine to fold constant offsets into GlobalAddress nodes,Dan Gohman
and add a TargetLowering hook for it to use to determine when this is legal (i.e. not in PIC mode, etc.) This allows instruction selection to emit folded constant offsets in more cases, such as the included testcase, eliminating the need for explicit arithmetic instructions. This eliminates the need for the C++ code in X86ISelDAGToDAG.cpp that attempted to achieve the same effect, but wasn't as effective. Also, fix handling of offsets in GlobalAddressSDNodes in several places, including changing GlobalAddressSDNode's offset from int to int64_t. The Mips, Alpha, Sparc, and CellSPU targets appear to be unaware of GlobalAddress offsets currently, so set the hook to false on those targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-18Revert r57699. It's causing regressions inDan Gohman
test/CodeGen/X86/2008-09-17-inline-asm-1.ll and a few others, and it breaks the llvm-gcc build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Use the opcode predicates, instead of duplicating the code.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57735 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17This is now partly done.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17This is done.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57733 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Factor out the code for mapping LLVM IR condition opcodes toDan Gohman
ISD condition opcodes into helper functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57726 91177308-0d34-0410-b5e6-96231b3b80d8
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