Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652

Support is incomplete, but more accurate than gcc's.

llvm-svn: 36634

llvm-svn: 36632

llvm-svn: 36630

llvm-svn: 36626

argument space for call sites in the function immediately on entry to the
current function. This eliminates the need for add/sub sp brackets around call
sites. However, this is not always a good idea. If the "call frame" is large and
the target load / store instructions have small immediate field to encode sp
offset, this can cause poor codegen. In the worst case, this can make it
impossible to scavenge a register if the reserved spill slot is pushed too far
apart from sp / fp.

llvm-svn: 36607

llvm-svn: 36586

llvm-svn: 36585

llvm-svn: 36583

around islands and jump tables).

llvm-svn: 36573

llvm-svn: 36572

llvm-svn: 36519

llvm-svn: 36518

llvm-svn: 36514

llvm-svn: 36513

llvm-svn: 36512

llvm-svn: 36506

llvm-svn: 36505

llvm-svn: 36504

llvm-svn: 36503

llvm-svn: 36502

llvm-svn: 36483

llvm-svn: 36452

llvm-svn: 36438

llvm-svn: 36430

BBOffsets and BBSizes when adjusting conditional branches.

llvm-svn: 36372

llvm-svn: 36371

llvm-svn: 36370

llvm-svn: 36324

llvm-svn: 36280

llvm-svn: 36273

Reported by Raul Herbster.

llvm-svn: 36262

llvm-svn: 36222

llvm-svn: 36203

target for tabs checking.

llvm-svn: 36146

llvm-svn: 35962

llvm-svn: 35909

llvm-svn: 35859

llvm-svn: 35846

llvm-svn: 35840