Commit Graph

46 Commits

Author SHA1 Message Date
Justin Holewinski 8b24e1e4fb [NVPTX] We dont have any target specific flags yet for generating symbol references, so get rid of the default-only switch statement. Fixes an MSVC warning.
llvm-svn: 187829
2013-08-06 23:06:42 +00:00
Justin Holewinski 871ec93909 [NVPTX] Fix bug in stack code generation causes by MC conversion
We do use a very small set of physical registers, so account for
them in the virtual register encoding between MachineInstr and MC

llvm-svn: 187799
2013-08-06 14:13:31 +00:00
Justin Holewinski a2a63d28df [NVPTX] Start conversion to MC infrastructure
This change converts the NVPTX target to use the MC infrastructure
instead of directly emitting MachineInstr instances. This brings
the target more up-to-date with LLVM TOT, and should fix PR15175
and PR15958 (libNVPTXInstPrinter is empty) as a side-effect.

llvm-svn: 187798
2013-08-06 14:13:27 +00:00
Justin Holewinski d2bbdf05e0 [NVPTX] Add support for module-scope inline asm
Since we were explicitly not calling AsmPrinter::doInitialization,
any module-scope inline asm was not being printed.

llvm-svn: 185336
2013-07-01 13:00:14 +00:00
Justin Holewinski 8fab95d5cc [NVPTX] Cut down on physical register defs
We are using virtual registers throughout now, but we still need
to keep a few physical registers per class around to keep the
infrastructure happy.

llvm-svn: 185334
2013-07-01 12:59:06 +00:00
Justin Holewinski dc5e3b68f5 [NVPTX] Clean up comparison/select/convert patterns and factor out PTX instructions from their patterns
Test case is no breakage

llvm-svn: 185175
2013-06-28 17:58:04 +00:00
Justin Holewinski f8f7091722 [NVPTX] Remove i8 register class. PTX support for i8 (.b8, .u8, .s8) is rather poor and we're better off just ignoring it and letting LLVM expand all i8 ops out to i16.
llvm-svn: 185174
2013-06-28 17:57:59 +00:00
Manman Ren 983a16c08a Debug Info: clean up usage of Verify.
No functionality change.
It should suffice to check the type of a debug info metadata, instead of
calling Verify. For cases where we know the type of a DI metadata, use
assert.

Also update testing cases to make them conform to the format of DI classes.

llvm-svn: 185135
2013-06-28 05:43:10 +00:00
Eric Christopher b8c608ea39 Revert "Debug Info: clean up usage of Verify." as it's breaking bots.
This reverts commit r185020

llvm-svn: 185032
2013-06-26 22:44:57 +00:00
Manman Ren aa00ce0e8f Debug Info: clean up usage of Verify.
No functionality change.
It should suffice to check the type of a debug info metadata, instead of
calling Verify.

llvm-svn: 185020
2013-06-26 21:26:10 +00:00
Justin Holewinski b96d1395f6 [NVPTX] Remove old CONST_NOT_GEN address space that is not being used anymore and causes constants to be emitted in the global address space
llvm-svn: 183652
2013-06-10 13:29:47 +00:00
Justin Holewinski dbb3b2f4b6 [NVPTX] Re-enable support for virtual registers in the final output
Now that 3.3 is branched, we are re-enabling virtual registers to help
iron out bugs before the next release. Some of the post-RA passes do
not play well with virtual registers, so we disable them for now. The
needed functionality of the PrologEpilogInserter pass is copied to a
new backend-specific NVPTXPrologEpilog pass.

The test for this commit is not breaking the existing tests.

llvm-svn: 182998
2013-05-31 12:14:49 +00:00
Bill Wendling 70b1400e6d Don't reach into the middle of TargetMachine and cache one of its ivars.
Not only does this break encapsulation, it's gross.

llvm-svn: 182876
2013-05-29 20:37:19 +00:00
Justin Holewinski 4c47d87ba6 [NVPTX] Fix mis-use of CurrentFnSym in NVPTXAsmPrinter. This was causing a symbol name error in the output PTX.
llvm-svn: 182298
2013-05-20 16:42:18 +00:00
Justin Holewinski 01f89f0428 [NVPTX] Add GenericToNVVM IR converter to better handle idiomatic LLVM IR inputs
This converter currently only handles global variables in address space 0. For
these variables, they are promoted to address space 1 (global memory), and all
uses are updated to point to the result of a cvta.global instruction on the new
variable.

The motivation for this is address space 0 global variables are illegal since we
cannot declare variables in the generic address space.  Instead, we place the
variables in address space 1 and explicitly convert the pointer to address
space 0. This is primarily intended to help new users who expect to be able to
place global variables in the default address space.

llvm-svn: 182254
2013-05-20 12:13:32 +00:00
Justin Holewinski 700b6fa934 [NVPTX] Fix i1 kernel parameters and global variables. ABI rules say we need to use .u8 for i1 parameters for kernels.
llvm-svn: 182253
2013-05-20 12:13:28 +00:00
Justin Holewinski 0497ab142d [NVPTX] Run clang-format on all NVPTX sources.
Hopefully this resolves any outstanding style issues and gives us
an automated way of ensuring we conform to the style guidelines.

llvm-svn: 178415
2013-03-30 14:29:21 +00:00
Justin Holewinski e988409423 [NVPTX] Fix handling of vector arguments
llvm-svn: 177847
2013-03-24 21:17:47 +00:00
Justin Holewinski be8dc6499a [NVPTX] Disable vector registers
Vectors were being manually scalarized by the backend.  Instead,
let the target-independent code do all of the work.  The manual
scalarization was from a time before good target-independent support
for scalarization in LLVM. However, this forces us to specially-handle
vector loads and stores, which we can turn into PTX instructions that
produce/consume multiple operands.

llvm-svn: 174968
2013-02-12 14:18:49 +00:00
Justin Holewinski 36a50991e7 [NVPTX] Make address space errors more explicit (llvm_unreachable -> report_fatal_error)
llvm-svn: 174808
2013-02-09 13:34:15 +00:00
Chandler Carruth 9fb823bbd4 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

llvm-svn: 171366
2013-01-02 11:36:10 +00:00
Nuno Lopes b6ad98224a convert a bunch of callers from DataLayout::getIndexedOffset() to GEP::accumulateConstantOffset().
The later API is nicer than the former, and is correct regarding wrap-around offsets (if anyone cares).
There are a few more places left with duplicated code, which I'll remove soon.

llvm-svn: 171259
2012-12-30 16:25:48 +00:00
Bill Wendling 749a43d874 Use the predicate methods off of AttributeSet instead of Attribute.
llvm-svn: 171257
2012-12-30 13:50:49 +00:00
Bill Wendling 3d7b0b8ac7 Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future.
llvm-svn: 170502
2012-12-19 07:18:57 +00:00
Bill Wendling e94d843e43 s/AttrListPtr/AttributeSet/g to better label what this class is going to be in the near future.
llvm-svn: 169651
2012-12-07 23:16:57 +00:00
Chandler Carruth ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Justin Holewinski 2c5ac70dd9 [NVPTX] Order global variables in def-use order before emiting them in the final assembly
llvm-svn: 168198
2012-11-16 21:03:51 +00:00
Jakub Staszak d17df318c0 Fix invalid asserts, use llvm_unreachable instead.
llvm-svn: 167976
2012-11-14 21:03:40 +00:00
Justin Holewinski 1812ee9a5b [NVPTX] Add more precise PTX/SM target attributes
Each SM and PTX version is modeled as a subtarget feature/CPU. Additionally,
PTX 3.1 is added as the default PTX version to be out-of-the-box compatible
with CUDA 5.0.

Available CPUs for this target:

  sm_10 - Select the sm_10 processor.
  sm_11 - Select the sm_11 processor.
  sm_12 - Select the sm_12 processor.
  sm_13 - Select the sm_13 processor.
  sm_20 - Select the sm_20 processor.
  sm_21 - Select the sm_21 processor.
  sm_30 - Select the sm_30 processor.
  sm_35 - Select the sm_35 processor.

Available features for this target:

  ptx30 - Use PTX version 3.0.
  ptx31 - Use PTX version 3.1.
  sm_10 - Target SM 1.0.
  sm_11 - Target SM 1.1.
  sm_12 - Target SM 1.2.
  sm_13 - Target SM 1.3.
  sm_20 - Target SM 2.0.
  sm_21 - Target SM 2.1.
  sm_30 - Target SM 3.0.
  sm_35 - Target SM 3.5.

llvm-svn: 167699
2012-11-12 03:16:43 +00:00
Justin Holewinski 2dc9d072e5 [NVPTX] Use ABI alignment for parameters when alignment is not specified.
Affects SM 2.0+.  Fixes bug 13324.

llvm-svn: 167646
2012-11-09 23:50:24 +00:00
Chandler Carruth 5da3f0512e Revert the majority of the next patch in the address space series:
r165941: Resubmit the changes to llvm core to update the functions to
         support different pointer sizes on a per address space basis.

Despite this commit log, this change primarily changed stuff outside of
VMCore, and those changes do not carry any tests for correctness (or
even plausibility), and we have consistently found questionable or flat
out incorrect cases in these changes. Most of them are probably correct,
but we need to devise a system that makes it more clear when we have
handled the address space concerns correctly, and ideally each pass that
gets updated would receive an accompanying test case that exercises that
pass specificaly w.r.t. alternate address spaces.

However, from this commit, I have retained the new C API entry points.
Those were an orthogonal change that probably should have been split
apart, but they seem entirely good.

In several places the changes were very obvious cleanups with no actual
multiple address space code added; these I have not reverted when
I spotted them.

In a few other places there were merge conflicts due to a cleaner
solution being implemented later, often not using address spaces at all.
In those cases, I've preserved the new code which isn't address space
dependent.

This is part of my ongoing effort to clean out the partial address space
code which carries high risk and low test coverage, and not likely to be
finished before the 3.2 release looms closer. Duncan and I would both
like to see the above issues addressed before we return to these
changes.

llvm-svn: 167222
2012-11-01 09:14:31 +00:00
Chandler Carruth 7ec5085e01 Revert the series of commits starting with r166578 which introduced the
getIntPtrType support for multiple address spaces via a pointer type,
and also introduced a crasher bug in the constant folder reported in
PR14233.

These commits also contained several problems that should really be
addressed before they are re-committed. I have avoided reverting various
cleanups to the DataLayout APIs that are reasonable to have moving
forward in order to reduce the amount of churn, and minimize the number
of commits that were reverted. I've also manually updated merge
conflicts and manually arranged for the getIntPtrType function to stay
in DataLayout and to be defined in a plausible way after this revert.

Thanks to Duncan for working through this exact strategy with me, and
Nick Lewycky for tracking down the really annoying crasher this
triggered. (Test case to follow in its own commit.)

After discussing with Duncan extensively, and based on a note from
Micah, I'm going to continue to back out some more of the more
problematic patches in this series in order to ensure we go into the
LLVM 3.2 branch with a reasonable story here. I'll send a note to
llvmdev explaining what's going on and why.

Summary of reverted revisions:

r166634: Fix a compiler warning with an unused variable.
r166607: Add some cleanup to the DataLayout changes requested by
         Chandler.
r166596: Revert "Back out r166591, not sure why this made it through
         since I cancelled the command. Bleh, sorry about this!
r166591: Delete a directory that wasn't supposed to be checked in yet.
r166578: Add in support for getIntPtrType to get the pointer type based
         on the address space.
llvm-svn: 167221
2012-11-01 08:07:29 +00:00
Micah Villmow bf3eeb2dfc Add some cleanup to the DataLayout changes requested by Chandler.
llvm-svn: 166607
2012-10-24 18:36:13 +00:00
Micah Villmow 12d9127833 Add in support for getIntPtrType to get the pointer type based on the address space.
This checkin also adds in some tests that utilize these paths and updates some of the
clients.

llvm-svn: 166578
2012-10-24 15:52:52 +00:00
Micah Villmow 4bb926d91d Resubmit the changes to llvm core to update the functions to support different pointer sizes on a per address space basis.
llvm-svn: 165941
2012-10-15 16:24:29 +00:00
Micah Villmow 0c61134d8d Revert 165732 for further review.
llvm-svn: 165747
2012-10-11 21:27:41 +00:00
Micah Villmow 083189730e Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly.
llvm-svn: 165726
2012-10-11 17:21:41 +00:00
Bill Wendling c9b22d735a Create enums for the different attributes.
We use the enums to query whether an Attributes object has that attribute. The
opaque layer is responsible for knowing where that specific attribute is stored.

llvm-svn: 165488
2012-10-09 07:45:08 +00:00
Micah Villmow cdfe20b97f Move TargetData to DataLayout.
llvm-svn: 165402
2012-10-08 16:38:25 +00:00
Bill Wendling b0a290ef9e Use new accessor methods to query for attributes.
llvm-svn: 165205
2012-10-04 06:43:21 +00:00
Bill Wendling b2f11986f8 Remove layering violation #include.
llvm-svn: 159372
2012-06-28 20:17:05 +00:00
Bill Wendling e38859dc8e Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.

llvm-svn: 159312
2012-06-28 00:05:13 +00:00
Jack Carter 5e69cffed5 There are a number of generic inline asm operand modifiers that
up to r158925 were handled as processor specific. Making them 
generic and putting tests for these modifiers in the CodeGen/Generic
directory caused a number of targets to fail. 

This commit addresses that problem by having the targets call 
the generic routine for generic modifiers that they don't currently
have explicit code for.

For now only generic print operands 'c' and 'n' are supported.vi


Affected files:

    test/CodeGen/Generic/asm-large-immediate.ll
    lib/Target/PowerPC/PPCAsmPrinter.cpp
    lib/Target/NVPTX/NVPTXAsmPrinter.cpp
    lib/Target/ARM/ARMAsmPrinter.cpp
    lib/Target/XCore/XCoreAsmPrinter.cpp
    lib/Target/X86/X86AsmPrinter.cpp
    lib/Target/Hexagon/HexagonAsmPrinter.cpp
    lib/Target/CellSPU/SPUAsmPrinter.cpp
    lib/Target/Sparc/SparcAsmPrinter.cpp
    lib/Target/MBlaze/MBlazeAsmPrinter.cpp
    lib/Target/Mips/MipsAsmPrinter.cpp
    
MSP430 isn't represented because it did not even run with
the long existing 'c' modifier and it was not apparent what
needs to be done to get it inline asm ready.

Contributer: Jack Carter
llvm-svn: 159203
2012-06-26 13:49:27 +00:00
Craig Topper bdf39a46a3 Convert assert(0) to llvm_unreachable.
llvm-svn: 157380
2012-05-24 07:02:50 +00:00
Craig Topper e4260f911b Mark a couple arrays as static and const. Use array_lengthof instead of sizeof/sizeof.
llvm-svn: 157369
2012-05-24 04:22:05 +00:00
Justin Holewinski ae556d3ef7 This patch adds a new NVPTX back-end to LLVM which supports code generation for NVIDIA PTX 3.0. This back-end will (eventually) replace the current PTX back-end, while maintaining compatibility with it.
The new target machines are:

nvptx (old ptx32) => 32-bit PTX
nvptx64 (old ptx64) => 64-bit PTX

The sources are based on the internal NVIDIA NVPTX back-end, and
contain more functionality than the current PTX back-end currently
provides.

NV_CONTRIB

llvm-svn: 156196
2012-05-04 20:18:50 +00:00