glsl: simplify the M_PI*f macros, fixes build on OpenBSD

The M_PI*f macros used a preprocessor paste to append 'f'
to M_PI defines, which works if the values are only numbers
but breaks on OpenBSD where M_PI definitions have casts
and brackets to meet requirements of a future version of POSIX,

http://austingroupbugs.net/view.php?id=801
http://austingroupbugs.net/view.php?id=828

Simplify the M_PI*f macros by using casts directly in the defines
as suggested by Kenneth Graunke.

Cc: "10.2" <mesa-stable@lists.freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78665
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
i965: Relax accumulator dependency scheduling on Gen < 6

Many instructions implicitly update the accumulator on Gen < 6. The instruction
scheduling code just calls add_barrier_deps() for each accumulator access on
these platforms, but a large class of operations don't actually update the
accumulator -- mostly move and logical instructions. Teaching the scheduling
code about this would allow more flexibility to schedule instructions.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77740
Reviewed-by: Matt Turner <mattst88@gmail.com>
i965: fix size assert for gen7 in brw_init_compaction_tables()

It should compare with it's own size.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
i965: Reformat brw_set_src1 so it can be easily found with grep.
scons: Require LLVM 3.1

Support for prior versions will be removed in the following change.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
configure: Require LLVM 3.1.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm,draw,llvmpipe: Remove support for versions of LLVM prior to 3.1.

Older versions haven't been tested probably don't work anyway.  But more
importantly, code supporting it is hindering further work.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: Stop using module providers.

Nowadays LLVMModuleProviderRef is just an alias for LLVMModuleRef, so
its use just causes unnecessary confusion.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: Use LLVM global context.

I saw that LLVM internally uses its global context for some things, even
when we use our own.  Given ours is also global, might as well use
LLVM's.

However, sepearate contexts can still be enabled with a simple source
code modification, for when the need/benefit arises.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: Run passes per module, not per function.

This is how it is meant to be done nowadays.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: One code memory pool with deferred free.

Provide a JITMemoryManager derivative which puts all generated code into
one memory pool instead of creating a new one each time code is generated.
This saves significant memory per shader as the pool size is 512K and
a small shader occupies just several K.

This memory manager also defers freeing generated code until you tell
it to do so, making it possible to destroy the LLVM engine while keeping
the code, thus enabling future memory savings.

v2: Fix compilation errors with LLVM 3.4 (Jose)

Signed-off-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: Separate freeing LLVM intermediate data from freeing final code.

Split free_gallivm_state() into two steps.  First step is
gallivm_free_ir() which cleans up the LLVM scaffolding used to generate
code while preserving the code itself.  Second step is
gallivm_free_code() to free the memory occupied by the code.

v2: s/gallivm_teardown/gallivm_free_ir/ (Jose)

Signed-off-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
draw: Delete unneeded LLVM stuff earlier.

Free up unneeded LLVM stuff immediately after generating vertex shader
code.  Saves about 500K per shader.

v2: Don't bother calling gallivm_free_function (Jose)

Signed-off-by: José Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
llvmpipe: Delete unneeded LLVM stuff earlier.

Same as Frank's change to draw module but for llvmpipe module.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: Remove gallivm_free_function.

Unused.  Deprecated by gallivm_free_ir().

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallivm: Remove lp_func_delete_body.

Not necessary, now that we will free the whole module (hence all
function bodies) immediately after compiling.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
gallium/docs: clarify when query results are reset

It wasn't completely clear from the docs, so I had to figure out by
looking at piglit results.  Hopefully this saves the next driver writer
implementing queries some time.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
mesa/st: provide native integers implementation of ir_unop_any

Previously, ir_unop_any was implemented via a dot-product call, which
uses floating point multiplication and addition. The multiplication was
completely pointless, and the addition can just as well be done with an
or. Since we know that the inputs are booleans, they must already be in
canonical 0/~0 format, and the final SNE can also be avoided.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
tgsi: support parsing texture offsets from text tgsi shaders

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
radeonsi: Fix anisotropic filtering state setup

Bring it back in line with r600g. I broke this in the original radeonsi
bringup. :(

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78537

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>