This is a three-way interval list intersection between a virtual register, a
live interval union, and a loop. It will be used to identify interference-free
loops for live range splitting.

llvm-svn: 122034

-- and remove FIXME asking for the same!

llvm-svn: 122032

assembler.

llvm-svn: 122031

llvm-svn: 122026

superceded and was effectively dead.

llvm-svn: 122024

llvm-svn: 122023

Radar 8776599

llvm-svn: 122018

llvm-svn: 122017

llvm-svn: 122016

a null endptr argument, because they may write to errno.

This fixes a seflhost miscompile observed on Linux targets when TBAA
was enabled.

llvm-svn: 122014

llvm-svn: 122013

here?

llvm-svn: 122012

in MCAsmLayout).

llvm-svn: 122011

llvm-svn: 122009

llvm-svn: 122008

llvm-svn: 122006

llvm-svn: 122005

are correctly marked as used. This removes a hack where the call instructions
marked all possible argument registers as used in the tablegen description.

llvm-svn: 121994

llvm-svn: 121990

llvm-svn: 121988

interface.

llvm-svn: 121981

llvm-svn: 121973

llvm-svn: 121972

llvm-svn: 121971

llvm-svn: 121970

Fix a bug in the loop in JumpThreading::ProcessThreadableEdges() where it could falsely produce a MultipleDestSentinel value if the first predecessor ended with an 'indirectbr'. If that happened, it caused an unnecessary FindMostPopularDest() call.
This wasn't a correctness problem, but it broke the fast path for single-predecessor blocks.

llvm-svn: 121966

dragonegg self-host buildbot.  Original commit message:

Add an InstCombine transform to recognize instances of manual overflow-safe addition
(performing the addition in a wider type and explicitly checking for overflow), and
fold them down to intrinsics.  This currently only supports signed-addition, but could
be generalized if someone works out the magic constant formulas for other operations.

llvm-svn: 121965

llvm-svn: 121958

the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

llvm-svn: 121953

2. Fixed EmitLocalCommonSymbol for ELF (Yes, they exist. :)
   Test added.

llvm-svn: 121951

 - Treaty talks on the non-proliferation of MC objects broke down.

llvm-svn: 121949

llvm-svn: 121946

llvm-svn: 121944

On LLP64 Win64, 'states1' (for small version) was expanded to 'char *' for large version. Thus small version would be mischosen when nstates > 32 regardless of sizeof(long) on Win64.

llvm-svn: 121942

(see PR4579).

llvm-svn: 121939

it. I.e., it was always an immediate value.

llvm-svn: 121932

respectively.

It may be a bug that these opcodes are getting this far into machine code
generation.

llvm-svn: 121931

llvm-svn: 121929

llvm-svn: 121923

llvm-svn: 121921