deregisterEHFrames doesn't take any parameters anymore.
Reviewed-by: Vedran Miletić <vedran@miletic.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reenable the PPC64LE Vector-Scalar Extension for LLVM versions >= 3.8.1,
now that LLVM bug 26775 and its corollary, 25503, are fixed.
Amendment: remove extraneous spaces in macro def & invocations.
We would prefer a runtime check, e.g. via an LLVMQueryString
(analogous to glGetString, eglQueryString) or LLVMGetVersion API,
but no such API exists at this time.
Signed-off-by: Ben Crocker <bcrocker@redhat.com>
[Emil Velikov: remove LLVM_VERSION macro]
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
If llvm::sys::getHostCPUName() returns "generic", override
it with "pwr8" (on PPC64LE).
This is a work-around for a bug in LLVM: a table entry for "POWER8NVL"
is missing, resulting in (big-endian) "generic" being returned on
little-endian Power8NVL systems. The result is that code that
attempts to load the least significant 32 bits of a 64-bit quantity in
memory loads the wrong half.
This omission should be fixed in the next version of LLVM (4.0),
but this work-around should be left in place in case some
future version of POWER<n> also ends up unrepresented in LLVM's table.
This workaround fixes failures in the Piglit arb_gpu_shader_fp64 conversion
tests on POWER8NVL processors.
(V4: add similar comment in the code.)
Signed-off-by: Ben Crocker <bcrocker@redhat.com>
Cc: 12.0 13.0 17.0 <mesa-stable@lists.freedesktop.org>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Correctly handled by the build systems.
Cc: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Use llvm provided API based on cpuid rather than our own
manually mantained list of mattr enabling/disabling.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Not sure if this is the right way to do it, but it seems to work.
v2: make it a no-op on LLVM <= 3.5
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Besides the old JIT bug, it seems the X86 backend on LLVM 3.3 doesn't
handle llvm.fmuladd and instead it fall backs to a C function. Which in
turn causes a segfault on Windows.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
As suggested by Roland Scheidegger.
Use the same logic as f16c, since fma requires VEX encoding.
But disable FMA on LLVM 3.3 without MCJIT.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
We don't target this yet, and some llvm versions incorrectly enable it based
on cpu string, causing crashes.
(Albeit this is a losing battle, it is pretty much guaranteed when the next
new feature comes along llvm will mistakenly enable it on some future cpu,
thus we would have to proactively disable all new features as llvm adds them.)
This should fix https://bugs.freedesktop.org/show_bug.cgi?id=94291 (untested)
Tested-by: Timo Aaltonen <tjaalton@ubuntu.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com
CC: <mesa-stable@lists.freedesktop.org>
LLVM when configured with "intel jitevents" enabled can inform
VTune about dynamic code, so individual shaders are attributed
profiling data and the resulting assembly can be examined.
Acked-by: Roland Scheidegger <sroland@vmware.com>
One needs to call setJITMemoryManager for LLVM 3.3, instead of
setMCJITMemoryManager.
This regressed in commits 065256df/75ad4fe7 when trying to make the
code to build with LLVM 3.6.
Tested MCJIT with LLVM 3.3 to 3.6.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Only provide a fallback for LLVM 3.3.
One less dependency on LLVM C++ interface.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This patch disables the use of VSX instructions, as they cause some
piglit tests to fail
For more details, see: https://llvm.org/bugs/show_bug.cgi?id=25503#c7
With this patch, ppc64le reaches parity with x86-64 as far as piglit test
suite is concerned.
v2:
- Added check that we have at least LLVM 3.4
- Added the LLVM bug URL as a comment in the code
v3:
- Only disable VSX if Altivec is supported, because if Altivec support
is missing, then VSX support doesn't exist anyway.
- Change original patch description.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This should prevent disparity between features Mesa and LLVM
believe are supported by the CPU.
http://lists.freedesktop.org/archives/mesa-dev/2015-October/thread.html#96990
Tested on a i7-3720QM w/ LLVM 3.3 and 3.6.
v2: Increase SmallVector initial size as suggested by Gustaw Smolarczyk.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
CC: "10.6 11.0" <mesa-stable@lists.freedesktop.org>
Drivers and state trackers that use LLVM for generating code, must
register the targets they use with LLVM's global TargetRegistry.
The TargetRegistry is not thread-safe, so all targets must be added
to the registry before it can be queried for target information.
When drivers and state trackers initialize their own targets, they need
a way to force gallivm to initialize its targets at the same time.
Otherwise, there can be a race condition in some multi-threaded
applications (e.g. glx-multihreaded-shader-compile in piglit),
when one thread creates a context for a driver that uses LLVM (e.g.
radeonsi) and another thread creates a gallivm context (glxContextCreate
does this).
The race happens when the driver thread initializes its LLVM targets and
then starts using the registry before the gallivm thread has a chance to
register its targets.
This patch allows users to force gallivm to register its targets by
calling the gallivm_init_llvm_targets() function.
v2:
- Use call_once and remove mutexes and static initializations.
- Replace gallivm_init_llvm_{begin,end}() with
gallivm_init_llvm_targets().
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
CC: "10.6 11.0" <mesa-stable@lists.freedesktop.org>
Temporarily undefine DEBUG macro while including LLVM C++ headers,
leveraging the push/pop_macro pragmas, which are supported both by GCC
and MSVC.
https://bugs.freedesktop.org/show_bug.cgi?id=90621
Trivial.
TargetOptions::NoFramePointerElim was removed in llvm-3.7.0svn r238244
"Remove NoFramePointerElim and NoFramePointerElimOverride from
TargetOptions and remove ExecutionEngine's dependence on CodeGen. NFC."
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
LLVM removed JITEmitDebugInfo from TargetOptions since they weren't used
v2: Be consistent with the LLVM version check (Aaron Watry)
Signed-off-by: Nick Sarnie <commendsarnex@gmail.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Fix typo in comment introduced by 70dc8a
Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Jose Fonseca <jfonseca@vmware.com>
std::unique_ptr takes ownership of MM, and a double delete could ensure
in case of an error, as pointed out by Chris Vine in
https://bugs.freedesktop.org/show_bug.cgi?id=89387
Reviewed-by: Chris Vine <chris@cvine.freeserve.co.uk>
Between release 3.2 and 3.3 LLVM stopped aligning properly when certain
conditions (no allocas, but large number of vectors causing spills to
the stack, and frame pointer omission enabled).
We were already disabling frame-pointer-omission on several build types,
but we now disable it on all build types.
It's not clear whether this affects 32-bits x86 processes only, or if it
can also affect 64-bits x86_64 processes when AVX registers are
available and used. So disable frame-pointer-omission on both
x86/x86_64 to be on the safe side.
See also:
- http://llvm.org/PR21435
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
The setMCJITMemoryManager method doesn't exist in LLVM 3.3.
I thought I had tested the latest version of my earlier change with LLVM
3.3, but it looks I missed it.
Trivial.
JITMemoryManager was removed in LLVM 3.6, and replaced by its base class
RTDyldMemoryManager.
This change fixes our JIT memory managers specializations to derive from
RTDyldMemoryManager in LLVM 3.6 instead of JITMemoryManager.
This enables llvmpipe to run with LLVM 3.6.
However, lp_free_generated_code is basically a no-op because there are
not enough hook points in RTDyldMemoryManager to track and free the code
of a module. In other words, with MCJIT, code once created, stays
forever allocated until process destruction. This is not speicfic to
LLVM 3.6 -- it will happen whenever MCJIT is used regardless of version.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
We'll need to update gallivm for the interface changes in LLVM 3.6, and
the fewer the number of older LLVM versions we support the less hairy that
will be.
As consequence HAVE_AVX define can disappear. (Note HAVE_AVX meant
whether LLVM version supports AVX or not. Runtime support for AVX is
always checked and enforced independently.)
Verified llvmpipe builds and runs with with LLVM 3.3, 3.4, and 3.5.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Do not rely on LLVMMCJITMemoryManagerRef being available.
The c binding to the memory manager objects only appeared
on llvm-3.4.
The change is based on an initial patch of Brian Paul.
Reviewed-by: Brian Paul <brianp@vmware.com>
Tested-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Mathias Froehlich <Mathias.Froehlich@web.de>
This fixes the remaining problem with the recently introduced
global jit memory manager. This change again uses a memory manager
that is local to gallivm_state. This implementation still frees
the majority of the memory immediately after compilation.
Only the generated code is deferred until this code is no longer used.
This change and the previous one using private LLVMContext instances
I can now safely run several independent OpenGL contexts driven
by llvmpipe from different threads.
v3: Rebase on llvm-3.6 compile fixes.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Signed-off-by: Mathias Froehlich <Mathias.Froehlich@web.de>
LLVM commit r218316 removes the JITMemoryManager class, which is
the parent for a seemingly important class in gallivm. In order to
fix the build, I've wrapped most of lp_bld_misc.cpp in
if HAVE_LLVM < 0x0306 and modifyed the
lp_build_create_jit_compiler_for_module() function to return false
for 3.6 and newer which effectively disables the gallivm functionality.
I realize this is overkill, but I could not come up with a simple
solution to fix the build. Also, since 3.6 will be the first release
without the old JIT, it would be really great if we could
move gallivm to use the C API only for accessing MCJIT. There
is still time before the 3.6 release to extend the C API in
case it is missing some functionality that is required by gallivm.
This LLVM 3.6 commit changed EngineBuilder constructor.
commit 3f4ed32b4398eaf4fe0080d8001ba01e6c2f43c8
Author: Rafael Espindola <rafael.espindola@gmail.com>
Date: Tue Aug 19 04:04:25 2014 +0000
Make it explicit that ExecutionEngine takes ownership of the modules.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215967 91177308-0d34-0410-b5e6-96231b3b80d8
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Previously llvm detected cpu features automatically when the execution engine
was created (based on host cpu). This is no longer the case, which meant llvm
was then not able to emit some of the intrinsics we used as we didn't specify
any sse attributes (only on avx supporting systems this was not a problem since
despite at least some llvm versions enabling it anyway we always set this
manually). So, instead of trying to figure out which MAttrs to set just set
MCPU.
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=77493.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Tested-by: Vinson Lee <vlee@freedesktop.org>
It works fine, though it requires using ELF objects.
With this change there is nothing preventing us to switch exclusively
to MCJIT, everywhere. It's still off though.
Not necessary, now that we will free the whole module (hence all
function bodies) immediately after compiling.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Marek Olšák
Michel Dänzer
Ben Crocker
Emil Velikov
Tim Rowley
Jose Fonseca
Frederic Devernay
Roland Scheidegger
Tom Stellard
Oded Gabbay
Vinson Lee
Nick Sarnie
Alexandre Demers
Brian Paul
Mathias Fröhlich