llvm-svn: 138102

llvm-svn: 138101

llvm-svn: 138100

llvm-svn: 138091

llvm-svn: 138087

llvm-svn: 138086

llvm-svn: 138085

llvm-svn: 138084

llvm-svn: 138083

an opt test.

llvm-svn: 138082

llvm-svn: 138077

llvm-svn: 138076

llvm-svn: 138073

llvm-svn: 138072

the intent seems to be to terminate even in Release builds, just use abort()
directly.

If program flow ever reaches a __builtin_unreachable (which llvm_unreachable is
#define'd to on newer GCCs) then the program is undefined.

llvm-svn: 138068

llvm-svn: 138067

llvm-svn: 138066

llvm-svn: 138065

llvm-svn: 138064

llvm-svn: 138063

llvm-svn: 138061

llvm-svn: 138060

llvm-svn: 138059

llvm-svn: 138056

MCParsedAsmOperand objects were being leaked.

llvm-svn: 138053

llvm-svn: 138052

llvm-svn: 138050

llvm-svn: 138048

llvm-svn: 138047

commas.

llvm-svn: 138043

llvm-svn: 138042

module.

Patch by Pekka Jääskeläinen.

llvm-svn: 138037

llvm-svn: 138034

llvm-svn: 138033

implementation!

llvm-svn: 138029

This is useful for unit tests.

llvm-svn: 138028

llvm-svn: 138025

C API functions must be able to see their extern "C" definitions, or it will be impossible to call them from C.

llvm-svn: 138022

Normally, a partial register def is treated as reading the
super-register unless it also defines the full register like this:

  %vreg110:sub_32bit<def> = COPY %vreg77:sub_32bit, %vreg110<imp-def>

This patch also uses the <undef> flag on partial defs to recognize
non-reading operands:

  %vreg110:sub_32bit<def,undef> = COPY %vreg77:sub_32bit

This fixes a subtle bug in RegisterCoalescer where LIS->shrinkToUses
would treat a coalesced copy as still reading the register, extending
the live range artificially.

My test case only works when I disable DCE so a dead copy is left for
RegisterCoalescer, so I am not including it.

<rdar://problem/9967101>

llvm-svn: 138018

known-incremented level, because the two concepts can be used
to prove the saftey of a retain+release removal in different
ways.

llvm-svn: 138016