LLVM IR concept.

llvm-svn: 76590

Another rewriter bug exposed by recent coalescer changes. ReuseInfo::GetRegForReload() should make sure the "switched" register is in the desired register class. I'm surprised this hasn't caused more failures in the past.

llvm-svn: 76558

llvm-svn: 76553

global declared symbols are initialized with references from other global
symbols.

llvm-svn: 76540

Is this really a winning transformation?
fold (shl (srl x, c1), c2) -> (shl (and x, (shl -1, c1)), (sub c2, c1)) or                                                                              
                              (srl (and x, (shl -1, c1)), (sub c1, c2))

llvm-svn: 76535

llvm-svn: 76533

llvm-svn: 76519

to a place where it affects everything.  Occurs
only on calls AFAIK.

llvm-svn: 76502

llvm-svn: 76480

"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...

llvm-svn: 76479

llvm-svn: 76472

Fix some sub-reg coalescing bugs where the coalescer wasn't updating the resulting interval's register class.

llvm-svn: 76458

are referenced, ignore the relocation entry and patch the relocatable field with
the computed symbol offset directly

llvm-svn: 76414

doesn't cause ".no_dead_strip" to be emitted on darwin.

llvm-svn: 76399

llvm-svn: 76397

"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385

Inline asm instructions may have additional <imp-def,kill> register operands.
These operands are not marked with a flag like the normal asm operands, so we
must not assert that there is a flag.

llvm-svn: 76373

llvm-svn: 76356

Use R_X86_64_32S to handle Jump Table Index relocation entries. Hide TAI usage inside getSection* functions

llvm-svn: 76347

llvm-svn: 76334

Use proper relocation type to build relocations for JumpTables (rodata
sections).

llvm-svn: 76326

llvm-svn: 76282

llvm-svn: 76281

llvm-svn: 76258

llvm-svn: 76246

llvm-svn: 76239

llvm-svn: 76237

llvm-svn: 76236

emit the EHFrame label next to the section_eh_frame and
eh_frame_common labels.

llvm-svn: 76234

starting in getCurrentFunctionEHName.  Among other problems,
we would try to privative a "foo.eh" label, but end up emitting
the label as _Lfoo.eh instead of L_foo.eh on darwin.  This is really
bad, and the linker has always tolerated these labels existing.
For now, just emit them as _foo.eh.

This patch also fixes problems with ".eh" labels on unnamed
functions and eliminates two strangely defined TargetAsmInfo
hooks.

llvm-svn: 76231

llvm-svn: 76228

Simplify the coalescer (finally!) by making LiveIntervals::processImplicitDefs a little more aggressive and teaching liveintervals to make use of isUndef marker on MachineOperands.

llvm-svn: 76223

llvm-svn: 76198

revert one of the loops to use indicies over iterators because there are vector insertions inside the loop

llvm-svn: 76195

llvm-svn: 76153

llvm-svn: 76131

llvm-svn: 76123

stack alignment right when it is.  This is not
ideal but conservatively correct.  Adjust a test
to compensate for changed stack offset value.
gcc.apple/asm-block-57.c

llvm-svn: 76120

Emit line numbers in asm comments when available.

llvm-svn: 76117

llvm-svn: 76111