It is conservatively correct to keep the hasPHIKill flags, even after
deleting PHI-defs.

The calculation can be very expensive after taildup has created a
quadratic number of indirectbr edges in the CFG, and the hasPHIKill flag
isn't used for anything after RenumberValues().

llvm-svn: 139780

Note that DW_TAG_rvalue_reference_type is officially 0x42, not 0x41.

llvm-svn: 139779

Thanks Nick!

llvm-svn: 139778

llvm-svn: 139777

llvm-svn: 139776

llvm-svn: 139775

llvm-svn: 139774

llvm-svn: 139773

The llvm-dwarfdump output isn't very verbose yet.

llvm-svn: 139771

llvm-svn: 139768

An improper SlotIndex->VNInfo lookup was leading to unsafe copy removal.
Fixes PR10920 401.bzip2 miscompile with no IV rewrite.

llvm-svn: 139765

Fix the code creating VZEXT_LOAD so that it creates the right memoperand.  Issue spotted in -debug output.  I can't think of any practical effects at the moment, but it might matter if we start doing more aggressive alias analysis in CodeGen.

llvm-svn: 139758

will ignore the erasedOnReboot option, and properly escape the
backslash in "C:\TEMP". Thanks to Aaron and Francois.

llvm-svn: 139755

llvm-svn: 139754

llvm-svn: 139753

llvm-svn: 139751

llvm-svn: 139748

llvm-svn: 139747

Patch by Joakim Johansson!

llvm-svn: 139743

llvm-svn: 139739

llvm-svn: 139736

llvm-svn: 139735

Ported from LLDB.

llvm-svn: 139732

temporary data. 

llvm-svn: 139725

Fix a bug in handling default flags for both ARM and Thumb encodings.

llvm-svn: 139721

Select the right 16 vs. 32 bit encoding in an IT block.

llvm-svn: 139714

llvm-svn: 139712

which could theoretically throw.

llvm-svn: 139710

in memory relevant to the optimizer. rdar://10050579.

llvm-svn: 139708

Clean up register list handling in general a bit to explicitly check things
like all the registers being from the same register class.

rdar://8883573

llvm-svn: 139707

llvm-svn: 139705

THe LRE_DidCloneVirtReg callback may be called with vitual registers
that RAGreedy doesn't even know about yet.  In that case, there are no
data structures to update.

llvm-svn: 139702

llvm-dwarfdump: Make the "is debug info section" heuristic stricter so it doesn't accidentaly picks up the wrong section.

Also add some validation code to the aranges section parser.

Fixes PR10926.

llvm-svn: 139701

llvm-svn: 139699

When a back-copy is hoisted to the nearest common dominator, keep
looking up the dominator tree for a less loopy dominator, and place the
back-copy there instead.

Don't do this when a single existing back-copy dominates all the others.
Assume the client knows what he is doing, and keep the dominating
back-copy.

This prevents us from hoisting back-copies into loops in most cases.  If
a value is defined in a loop with multiple exits, we may still hoist
back-copies into that loop.  That is the speed/size tradeoff.

llvm-svn: 139698

llvm-svn: 139697

llvm-svn: 139695

llvm-svn: 139692

Fix mem type for VEX.128 form of VROUNDP*. Remove filter preventing VROUND from being recognized by disassembler.

llvm-svn: 139691

llvm-svn: 139690