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path: root/llvm/lib/CodeGen/PHIEliminationUtils.cpp
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2019-01-19Update the file headers across all of the LLVM projects in the monorepoChandler Carruth1-4/+3
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
2016-09-16Place the lowered phi instruction(s) before the DEBUG_VALUE entryKeith Walker1-1/+2
When a phi node is finally lowered to a machine instruction it is important that the lowered "load" instruction is placed before the associated DEBUG_VALUE entry describing the value loaded. Renamed the existing SkipPHIsAndLabels to SkipPHIsLabelsAndDebug to more fully describe that it also skips debug entries. Then used the "new" function SkipPHIsAndLabels when the debug information should not be skipped when placing the lowered "load" instructions so that it is placed before the debug entries. Differential Revision: https://reviews.llvm.org/D23760 llvm-svn: 281727
2015-08-27[WinEH] Add some support for code generating catchpadReid Kleckner1-1/+1
We can now run 32-bit programs with empty catch bodies. The next step is to change PEI so that we get funclet prologues and epilogues. llvm-svn: 246235
2014-03-17Switch a number of loops in lib/CodeGen over to range-based for-loops, now thatOwen Anderson1-5/+3
the MachineRegisterInfo iterators are compatible with it. llvm-svn: 204075
2014-03-13Phase 2 of the great MachineRegisterInfo cleanup. This time, we're changingOwen Anderson1-5/+5
operator* on the by-operand iterators to return a MachineOperand& rather than a MachineInstr&. At this point they almost behave like normal iterators! Again, this requires making some existing loops more verbose, but should pave the way for the big range-based for-loop cleanups in the future. llvm-svn: 203865
2012-12-03Use the new script to sort the includes of every file under lib.Chandler Carruth1-1/+1
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
2010-12-05Move the FindCopyInsertPoint method of PHIElimination to a new standaloneCameron Zwarich1-0/+61
function so that it can be shared with StrongPHIElimination. llvm-svn: 120951