Rather than using the full power of target-specific addressing modes in
DBG_VALUEs with Frame Indicies, simply use Frame Index + Offset. This
reduces the complexity of debug info handling down to two
representations of values (reg+offset and frame index+offset) rather
than three or four.

Ideally we could ensure that frame indicies had been eliminated by the
time we reached an assembly or dwarf generation, but I haven't spent the
time to figure out where the FIs are leaking through into that & whether
there's a good place to convert them. Some FI+offset=>reg+offset
conversion is done (see PrologEpilogInserter, for example) which is
necessary for some SelectionDAG assumptions about registers, I believe,
but it might be possible to make this a more thorough conversion &
ensure there are no remaining FIs no matter how instruction selection
is performed.

llvm-svn: 184066

This currently unused function appeared to be asserting in the wrong
direction - DebugValues are never definitions of registers, only uses.
Curiously we don't perform any of these checks for the more common (&
actually used) case of MachineOperand::CreateReg (or other Create
functions).

llvm-svn: 184065

llvm-svn: 184059

comment.

llvm-svn: 184051

DebugInfo: follow up to 184045 to constrain the tests further to ensure they don't contain +0 offsets

llvm-svn: 184046

llvm-svn: 184045

llvm-svn: 184044

llvm-svn: 184042

llvm-svn: 184041

llvm-svn: 184039

llvm-svn: 184038

And add Sandybridge/Haswell resource buffers.

llvm-svn: 184034

llvm-svn: 184033

Replace the ill-defined MinLatency and ILPWindow properties with
with straightforward buffer sizes:
MCSchedMode::MicroOpBufferSize
MCProcResourceDesc::BufferSize

These can be used to more precisely model instruction execution if desired.

Disabled some misched tests temporarily. They'll be reenabled in a few commits.

llvm-svn: 184032

"Counts" refer to scaled resource counts within a region. CurrMOps is
simply the number of micro-ops to be issue in the current cycle.

llvm-svn: 184031

llvm-svn: 184030

Heuristics compare the critical path in the scheduled code, called
ExpectedLatency, with the latency of instructions remaining to be
scheduled. There are two ways to look at remaining latency:

(1) Dependent latency includes the latency between unscheduled and
scheduled instructions.

(2) Independent latency is simply the height (bottom-up) or depth
(top-down) of instructions currently in the ready Q.

llvm-svn: 184029

llvm-svn: 184028

This doesn't really effect performance due to all the relevant calls being transparent but is clearer. 

llvm-svn: 184027

Debug Info: Don't print the display name and colon prefix for DEBUG_VALUE comments if the display name is empty

llvm-svn: 184026

llvm-svn: 184025

llvm-svn: 184022

Also add a seperate vector lit test file, since r600 doesn't seem to handle
v2i32 load/store yet, but we can test both for SI.

Patch by: Aaron Watry

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 184021

Archive files (.a) can have a symbol table indicating which object
files in them define which symbols. The purpose of this symbol table
is to speed up linking by allowing the linker the read only the .o
files it is actually going to use instead of having to parse every
object's symbol table.

LLVM's archive library currently supports a LLVM specific format for
such table. It is hard to see any value in that now that llvm-ld is
gone:

* System linkers don't use it: GNU ar uses the same plugin as the
linker to create archive files with a regular index. The OS X ar
creates no symbol table for IL files, I assume the linker just parses
all IL files.

* It doesn't interact well with archives having both IL and native objects.

* We probably don't want to be responsible for yet another archive
format variant.

This patch then:

* Removes support for creating and reading such index from lib/Archive.
* Remove llvm-ranlib, since there is nothing left for it to do.

We should in the future add support for regular indexes to llvm-ar for
both native and IL objects. When we do that, llvm-ranlib should be
reimplemented as a symlink to llvm-ar, as it is equivalent to "ar s".

llvm-svn: 184019

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 184016

We were using RAT_INST_STORE_RAW, which seemed to work, but the docs
say this instruction doesn't exist for Cayman, so it's probably safer
to use a documented instruction instead.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 184015

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 184014

Reviewed-by: Vincent Lejeune<vljn at ovi.com>
llvm-svn: 184013

llvm-svn: 184012

Patch by Micah Villmow from last year that was reviewed, but never committed

llvm-svn: 184011

It looks like clang-tools-extra/unittests/cpp11-migrate/TransformTest.cpp
depends on the behaviour of the old one on Windows. Maybe a difference
between GetCurrentDirectoryA and GetCurrentDirectoryW?

llvm-svn: 184009

llvm-svn: 184008

GetCurrentDirectory is now unused. Remove it.

llvm-svn: 184003

When we're rematerializing into a not-quite-right register we already add the
real definition as an imp-def, but we should also be marking the "official"
register as dead, since nothing else is going to use it as a result of this
remat.

Not doing this can affect pressure tracking.

rdar://problem/14158833

llvm-svn: 184002

Run the test at O1 instead of O0: ARM FastISel keeps frame pointers around and ignores the flag. The test should now pass on ARM and still passes on x86.See: http://llvm.org/bugs/show_bug.cgi?id=16322

llvm-svn: 183999

This reverts commit 183995.

It broke the bots:
http://bb.pgr.jp/builders/cmake-clang-x86_64-linux/builds/9730/steps/build_clang/logs/stdio

llvm-svn: 183997

llvm-svn: 183996

llvm-svn: 183995

(-llc), similarly to the way it was done for clang and llvmc. 

This doesn't affect the upstream llvm tests but helps when developing custom
LLVM-based tools and testing them within the LLVM regression framework.

llvm-svn: 183994

SelectionDAG: Fix incorrect condition checks in some cases of folding FADD/FMUL combinations; also improve accuracy of comments

llvm-svn: 183993