llvm-svn: 139892

llvm-svn: 139884

The leaveIntvAfter() function normally inserts a back-copy after the
requested instruction, making the back-copy kill the live range.

In spill mode, try to insert the back-copy before the last use instead.
That means the last use becomes the kill instead of the back-copy.  This
lowers the register pressure because the last use can now redefine the
same register it was reading.

This will also improve compile time: The back-copy isn't a kill, so
hoisting it in hoistCopiesForSize() won't force a recomputation of the
source live range.  Similarly, if the back-copy isn't hoisted by the
splitter, the spiller will not attempt hoisting it locally.

llvm-svn: 139883

If the source register is live after the copy being spilled, there is no
point to hoisting it.  Hoisting inside a basic block only serves to
resolve interferences by shortening the live range of the source.

llvm-svn: 139882

llvm-svn: 139881

llvm-svn: 139880

llvm-svn: 139877

Don't attach annotations to MCInst's.  Instead, have the disassembler return, and the printer accept, an annotation string which can be passed through if the client cares about annotations.

llvm-svn: 139876

gold plugin is built with Large File Support (sizeof(off_t) == 64 on i686)
and the rest of LLVM is built w/o Large File Support
(sizeof(off_t) == 32 on i686) which corrupts the stack.

llvm-svn: 139873

llvm-svn: 139872

llvm-svn: 139871

llvm-svn: 139870

llvm-svn: 139869

llvm-svn: 139868

llvm-svn: 139866

llvm-svn: 139865

time for describing high latency ones and for recognizting loads
from the same base pointer

llvm-svn: 139864

llvm-svn: 139861

llvm-svn: 139859

llvm-svn: 139858

Also add the AVX versions and add comments!

llvm-svn: 139854

llvm-svn: 139851

Usage:
$ llvm-dwarfdump -address=0x0000000100000ed4 a.out.dSYM/Contents/Resources/DWARF/a.out 
xxx.c:6:0

llvm-svn: 139850

llvm-svn: 139849

llvm-svn: 139848

llvm-svn: 139846

When -split-spill-mode is enabled, spill hoisting is performed by
SplitKit instead of by InlineSpiller.  This hidden command line option
is for testing the splitter spill mode.

llvm-svn: 139845

llvm-svn: 139844

llvm-svn: 139843

llvm-svn: 139842

llvm-svn: 139841

llvm-svn: 139839

DWARF: Put all the pieces we have together and provide a single accessor to DIContext that provides line information when given an address.

llvm-svn: 139836

DWARF: Remove accessors that parse the whole line table section in one go, this can't possibly work.

The address size is specified by the compile unit associated with a line table, there is no global address size.

llvm-svn: 139835

llvm-svn: 139831

llvm-svn: 139830

llvm-svn: 139828

The the MC disassembler C API to print in verbose mode.  Perhaps there should be a parameter to request verbose mode?

llvm-svn: 139821

Add support for stored annotations to MCInst, and provide facilities for MC-based InstPrinters to print them out.  Enhance the ARM and X86 InstPrinter's to do so in verbose mode.

llvm-svn: 139820

Fix the stats counters to reflect that.

llvm-svn: 139819