The whole point of inlining sources is to reduce loads. We can end up in a situation where one value is used a lot of times, and one value is used only once per instruction. The once-per-instruction one is the one that should get inlined, but with the previous algorithm, it was given no preference. This flips things around to preferring putting less-referenced values into src1 which increases the likelihood of them being inlined. While we're at it, adjust the heuristic to not treat 0 as an immediate, as well as (effectively) check for situations where LIMMs can't be loaded. All this yields improvements on nvc0: total instructions in shared programs : 6261157 -> 6255985 (-0.08%) total gprs used in shared programs : 945082 -> 943417 (-0.18%) total local used in shared programs : 30372 -> 30288 (-0.28%) total bytes used in shared programs : 50089256 -> 50047880 (-0.08%) local gpr inst bytes helped 21 822 3332 3332 hurt 0 278 565 565 And more importantly avoids generating really bad code with SSBOs, where we end up checking a lot of different values (usually immediates) against the length. On nv50 we get comparable results, and even improve packing (bytes went down more than instructions): total instructions in shared programs : 6346564 -> 6341277 (-0.08%) total gprs used in shared programs : 728719 -> 725131 (-0.49%) total local used in shared programs : 3552 -> 3552 (0.00%) total bytes used in shared programs : 43995688 -> 43932928 (-0.14%) local gpr inst bytes helped 0 1380 3252 3774 hurt 0 287 1710 1365 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> |
||
---|---|---|
bin | ||
docs | ||
doxygen | ||
include | ||
m4 | ||
scons | ||
src | ||
.dir-locals.el | ||
.gitattributes | ||
.gitignore | ||
.travis.yml | ||
Android.common.mk | ||
Android.mk | ||
CleanSpec.mk | ||
Makefile.am | ||
SConstruct | ||
VERSION | ||
appveyor.yml | ||
autogen.sh | ||
common.py | ||
configure.ac | ||
install-gallium-links.mk | ||
install-lib-links.mk |
docs/README.WIN32
File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see http://www.mesa3d.org/repository.html - run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.