Commit Graph

74493 Commits

Author SHA1 Message Date
Eli Friedman
ef71597242 Make sure to correctly clear the exact/nuw/nsw flags off of shifts when they are combined together. <rdar://problem/9859829>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136435 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29 00:18:19 +00:00
Chandler Carruth
ac03e736c7 Rewrite the CMake build to use explicit dependencies between libraries,
specified in the same file that the library itself is created. This is
more idiomatic for CMake builds, and also allows us to correctly specify
dependencies that are missed due to bugs in the GenLibDeps perl script,
or change from compiler to compiler. On Linux, this returns CMake to
a place where it can relably rebuild several targets of LLVM.

I have tried not to change the dependencies from the ones in the current
auto-generated file. The only places I've really diverged are in places
where I was seeing link failures, and added a dependency. The goal of
this patch is not to start changing the dependencies, merely to move
them into the correct location, and an explicit form that we can control
and change when necessary.

This also removes a serialization point in the build because we don't
have to scan all the libraries before we begin building various tools.
We no longer have a step of the build that regenerates a file inside the
source tree. A few other associated cleanups fall out of this.

This isn't really finished yet though. After talking to dgregor he urged
switching to a single CMake macro to construct libraries with both
sources and dependencies in the arguments. Migrating from the two macros
to that style will be a follow-up patch.

Also, llvm-config is still generated with GenLibDeps.pl, which means it
still has slightly buggy dependencies. The internal CMake
'llvm-config-like' macro uses the correct explicitly specified
dependencies however. A future patch will switch llvm-config generation
(when using CMake) to be based on these deps as well.

This may well break Windows. I'm getting a machine set up now to dig
into any failures there. If anyone can chime in with problems they see
or ideas of how to solve them for Windows, much appreciated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136433 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29 00:14:25 +00:00
Jakub Staszak
00eab6c716 Remove extra semicolon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136432 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29 00:05:35 +00:00
Owen Anderson
00ef6e3a30 Enhance the fixed-length decoder emitter to support tied operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136431 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 23:56:20 +00:00
Bill Wendling
3678537332 Visit the landingpad instruction.
This generates the correct SDNodes for the landingpad instruction. It makes an
assumption that the result of the landingpad instruction has at least two
values. And that the first value is a pointer to the exception object and the
second value is the "selector."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 23:44:58 +00:00
Bill Wendling
e963a3814f Add the AddLandingPadInfo function.
AddLandingPadInfo takes a landingpad instruction and grabs all of the
information from it that it needs for EH table generation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136429 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 23:42:57 +00:00
Jakub Staszak
3d8b15ea70 Change LBH_TAKEN_WEIGHT to 124 (from 128). Right now, sum of
LBH_TAKEN_WEIGHT + LBH_NONTAKEN_WEIGHT = 128 which in _most_ cases reduce
number of rounding errors.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136428 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 23:42:08 +00:00
Jim Grosbach
48c693ff56 PLD and PLI are not predicable in ARM mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136427 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 23:22:41 +00:00
Jim Grosbach
c5b3c58ae8 CBZ/CBNZ are Thumb2 only. No need for ARM mode tests for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136408 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:59:38 +00:00
Jim Grosbach
cf121c35c4 ARM assembly parsing and encoding for BLX (immediate).
Add parsing support for BLX (immediate). Since the register operand version is
predicated and the label operand version is not, we have to use some special
handling to get the operand list right for matching.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:57:55 +00:00
Owen Anderson
d1e38dfb8d Enhance the fixed-length decoder emitter to support parsing scattered fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136405 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:54:31 +00:00
Eli Friedman
ff03048c13 LangRef and basic memory-representation/reading/writing for 'cmpxchg' and
'atomicrmw' instructions, which allow representing all the current atomic
rmw intrinsics.

The allowed operands for these instructions are heavily restricted at the
moment; we can probably loosen it a bit, but supporting general
first-class types (where it makes sense) might get a bit complicated,
given how SelectionDAG works.

As an initial cut, these operations do not support specifying an alignment,
but it would be possible to add if we think it's useful. Specifying an
alignment lower than the natural alignment would be essentially
impossible to support on anything other than x86, but specifying a greater
alignment would be possible.  I can't think of any useful optimizations which
would use that information, but maybe someone else has ideas.

Optimizer/codegen support coming soon.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:48:00 +00:00
Jakub Staszak
7f1cce55b5 If run with -debug give more information about Cyclic Probability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136403 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:46:58 +00:00
Jakub Staszak
7241caf7b8 Heuristics are in descending priority now. If we use one of them, skip the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136402 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:45:07 +00:00
Jakob Stoklund Olesen
f6c690019b Handle REG_SEQUENCE with implicitly defined operands.
Code like that would only be produced by bugpoint, but we should still
handle it correctly.

When a register is defined by a REG_SEQUENCE of undefs, the register
itself is undef. Previously, we would create a register with uses but no
defs.

Fixes part of PR10520.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136401 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:38:51 +00:00
Jim Grosbach
43afb6ff1c Remove obsolete FIXME reference in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:37:05 +00:00
Jim Grosbach
293a2ee306 ARM assembly parsing and encoding for BFC and BFI.
Add parsing support that handles converting the lsb+width source into the
odd way we represent the instruction (an inverted bitfield mask).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:34:26 +00:00
Jakub Staszak
fa44725233 Add InEdges (edges from header to the loop) in Loop Branch Heuristics, so
there is no frequency difference whether condition is in the header or in
the latch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136398 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:33:46 +00:00
Bill Wendling
1ddaa9c1c6 Use ArrayRef instead of requiring an std::vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136396 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:25:33 +00:00
Bill Wendling
7379b66500 The personality function should be a Function* and not just a Value*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136392 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:14:13 +00:00
Douglas Gregor
6bd4842f89 Fix Clang attribute reader tblgen output for a corresponding fix on the Clang side
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136390 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 20:55:16 +00:00
Jakob Stoklund Olesen
cc07e04262 Reverse order of RS_Split live ranges under -compact-regions.
There are two conflicting strategies in play:

- Under high register pressure, we want to assign large live ranges
  first. Smaller live ranges are easier to place afterwards.

- Live range splitting is guided by interference, so splitting should be
  deferred until interference is as realistic as possible.

With the recent changes to the live range stages, and with compact
regions enabled, it is less traumatic to split a live range too early.
If some of the split products were too big, they can often be split
again.

By reversing the RS_Split order, we get this queue order:

1. Normal live ranges, large to small.
2. RS_Split live ranges, large to small.

The large-to-small order improves RAGreedy's puzzle solving skills under
high register pressure. It may cause a bit more iterated splitting, but
we handle that better now.

With this change, -compact-regions is mostly an improvement on SPEC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136388 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 20:48:23 +00:00
Bill Wendling
b4904503de Initial code to convert ResumeInsts into calls to _Unwind_Resume.
This should be the only code necessary for DWARF EH prepare.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136387 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 20:48:05 +00:00
Jakub Staszak
af7a46d5a6 Fix stupid mistake from commit 136381.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136384 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 20:17:18 +00:00
Jakub Staszak
2f9427c6a3 Speed up BlockFrequencyInfo a little bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136381 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 20:09:31 +00:00
Jim Grosbach
c29769b0e8 Add fixme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 19:46:12 +00:00
Bill Wendling
ad759c5a07 Use version 402 for the GCDA files when compiling for Apple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 18:12:20 +00:00
Owen Anderson
354712c5a5 Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 17:56:55 +00:00
Owen Anderson
8313b48bbe Fill in some encoding information for STRD instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 17:53:25 +00:00
Owen Anderson
aa3402e280 Revert r136295. It broke nightly testers because some parts of codegen weren't aware of the changes to operand ordering. I hope to revive this sometime in the future, but it's not strictly necessary for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 17:18:57 +00:00
Jim Grosbach
70a0915cd1 ARM parsing and encoding for ADR.
The label does not have a '#' prefix. Add parsing and encoding tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136360 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 16:33:54 +00:00
Jim Grosbach
19b9d6912a Update ARM tests for parsing and encoding of WFE, WFI and YIELD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136358 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 16:00:41 +00:00
Nadav Rotem
2ff4bc6155 CR fix: The ANY_EXTEND can be removed because the input and putput type must be
identical.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136355 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 14:38:46 +00:00
Duncan Sands
5edfbebb7d Use unsigned rather than uint16_t in case anyone feels like testing
more graphs, like all graphs with 5 nodes or less.  With a 32 bit
unsigned type, the maximum is graphs with 6 nodes or less, but that
would take a while to test - 5 nodes or less already requires a few
seconds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136354 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 14:37:53 +00:00
Duncan Sands
6f7eec1294 Check an additional property specific to the way LLVM
iterates over SCC's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136353 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 14:33:01 +00:00
Duncan Sands
8537e8a9a5 Add a unittest for the simply connected components (SCC) iterator class.
This computes every graph with 4 or fewer nodes, and checks that the SCC
class indeed returns exactly the simply connected components reachable
from the initial node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136351 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 14:17:11 +00:00
Duncan Sands
5a079eb6ab Due to changes coming from the new LLVM type system, you now get
bitcasts in this test rather than getelementptr instructions;
llvm-gcc produces two bitcasts, clang produces one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136349 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 12:21:47 +00:00
Duncan Sands
4ed960061a This file was moved from Support to ADT. Correct a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136344 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 08:36:22 +00:00
Bill Wendling
9580641d5f Some minor cleanups. No functionalitical change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136341 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 07:44:07 +00:00
Bill Wendling
9a2dde3fd1 Leverage some of the code that John wrote to manage the landing pads.
The new EH is more simple in many respects. Mainly, we don't have to worry about
the "llvm.eh.exception" and "llvm.eh.selector" calls being in weird places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 07:31:46 +00:00
Bill Wendling
7196184610 Don't add in the asked for size so that we don't copy too much from the old to new vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136338 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 07:26:41 +00:00
Nick Lewycky
297738fa95 In DenseMapInfo<pair<T, U>> tombstone key, use the tombstone for T and U instead
of the empty key for U. This shouldn't really matter because the tombstone key
for the pair was still distinct from every other key, but it is odd. Patch by
Michael Ilseman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136336 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 06:48:33 +00:00
Bill Wendling
e8ce880f1a Automatically merge the landingpad clauses when we come across a callee's
landingpad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136329 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 02:40:13 +00:00
Oscar Fuentes
4ebc5916e9 Explicitly declare a library dependency of LLVM*Desc to
LLVM*AsmPrinter.

GenLibDeps.pl fails to detect vtable references. As this is the only
referenced symbol from LLVM*Desc to LLVM*AsmPrinter on optimized
builds, the algorithm that creates the list of libraries to be linked
into tools doesn't know about the dependency and sometimes places the
libraries on the wrong order, yielding error messages like this:

../../lib/libLLVMARMDesc.a(ARMMCTargetDesc.cpp.o): In function
`llvm::ARMInstPrinter::ARMInstPrinter(llvm::MCAsmInfo const&)':
ARMMCTargetDesc.cpp:(.text._ZN4llvm14ARMInstPrinterC1ERKNS_9MCAsmInfoE
[llvm::ARMInstPrinter::ARMInstPrinter(llvm::MCAsmInfo
const&)]+0x2a): undefined reference to `vtable for
llvm::ARMInstPrinter'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136328 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 02:33:52 +00:00
Oscar Fuentes
3f01f673e5 Updated cmake library dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 02:33:33 +00:00
Bill Wendling
28d735230f Make sure that the landingpad instruction takes a Constant* as the clause's value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136326 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 02:27:12 +00:00
Bill Wendling
7f66c45f35 Add a couple of convenience functions:
* InvokeInst: Get the landingpad instruction associated with this invoke.
* LandingPadInst: A method to reserve extra space for clauses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136325 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 02:15:52 +00:00
Bruno Cardoso Lopes
15d03fb7f4 Invert the subvector insertion to be more likely to be taken as a COPY
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136324 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 01:26:53 +00:00
Bruno Cardoso Lopes
93fa4766c2 Add patterns to generate copies for extract_subvector instead of
using vextractf128. This will reduce the number of issued instruction
for several avx codes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136323 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 01:26:50 +00:00
Bruno Cardoso Lopes
735bccda65 movd/movq write zeros in the high 128-bit part of the vector. Use
them to match 256-bit scalar_to_vector+zext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136322 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 01:26:46 +00:00