radeonsi: Read rodata from ELF and append it to the end of shaders

The is used for programs that have arrays of constants that
are accessed using dynamic indices.  The shader will compute
the base address of the constants and then access them using
SMRD instructions.
radeonsi/compute: Share COMPUTE_DBG macro with r600g

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
winsys/radeon:  Query the kernel for the number of SEs and SHs per SE

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
radeonsi/compute: Bump number of user sgprs for LLVM 3.5

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
radeonsi/compute: Add support scratch buffer support v2

The scratch buffer will be used for private memory and also register
spilling.

v2:
  - Code cleanups
i965: Add cfg to backend_visitor.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
i965/cfg: Add a foreach_block_and_inst macro.

Will let us abstract how the instructions are stored.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
i965: Replace cfg instances with calls to calculate_cfg().

Avoids regenerating it unnecessarily.

Every program in shader-db improved, none by an amount less than a 1/3
reduction. One Dota2 shader decreased from 62 -> 24.

cfg calculations:     429492 -> 193197 (-55.02%)

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
i965/vec4: Use foreach_inst_in_block a couple more places.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
i965: Disable hex offset printing in disassembly.

Printing the hex offsets makes it basically impossible to diff assembly:
if you add even a single instruction, the entire shader shows up as a
difference.  So, every time I want to compare assembly, I have to strip
this out.

The hex offsets might be useful when debugging compaction, or when
inspecting the program cache buffer.  Since it's occasionally useful,
but uncommon, this patch disables it by default, but makes it easy to
re-enable it temporarily when the need arises.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
i965/disasm: Don't disassemble the URB complete field on Broadwell.

It doesn't exist, so attempting to read it will trigger generation
assertions in the brw_inst API.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
i965: Add missing persample_shading field to brw_wm_debug_recompile.

Otherwise, the performance warning for shader recompiles will just say
"something else".

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
i965/fs: Fix gl_SampleID for 2x MSAA and SIMD16 mode.

We might be able to do this without an extra program key field, but this
is non-invasive and fixes the bug, for now.

This fixes the following Piglit tests on Broadwell:
- ARB_sample_shading/builtin-gl-sample-id 2
- ARB_sample_shading/builtin-gl-sample-position 2
- EXT_framebuffer_multisample/multisample-blit 2 color
- EXT_framebuffer_multisample/multisample-blit 2 color linear
- EXT_framebuffer_multisample/multisample-blit 2 depth
- EXT_framebuffer_multisample/no-color 2 depth combined
- EXT_framebuffer_multisample/no-color 2 depth separate
- EXT_framebuffer_multisample/no-color 2 depth single
- EXT_framebuffer_multisample/no-color 2 depth-computed combined
- EXT_framebuffer_multisample/no-color 2 depth-computed separate
- EXT_framebuffer_multisample/no-color 2 depth-computed single
- EXT_framebuffer_multisample/unaligned-blit 2 color msaa
- EXT_framebuffer_multisample/unaligned-blit 2 depth msaa

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80991
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>
i965/fs: Fix gl_SampleMask handling for SIMD16 on Gen8+.

We actually want to use mov(16), not mov(8).

Fixes 7 Piglit tests: ARB_sample_shading/builtin-gl-sample-mask [2468]
and ARB_sample_shading/builtin-gl-sample-mask-simple [468].

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80991
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>