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We want to check prior to optimization - otherwise we might fail to detect cases where barrier() is in control flow which is always taken (and therefore gets optimized away). We don't currently loop unroll if there are function calls inside; otherwise we might have a problem detecting barrier() in loops that get unrolled as well. Tapani's switch handling code adds a loop around switch statements, so even with the mess of if ladders, we'll properly reject it. Enforcing these rules at compile time makes more sense more sense than link time. Doing it at ast-to-hir time (rather than as an IR pass) allows us to emit an error message with proper line numbers. (Otherwise, I would have preferred the IR pass...) Fixes spec/arb_tessellation_shader/compiler/barrier-switch-always.tesc. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by; Ian Romanick <ian.d.romanick@intel.com> |
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| common.py | ||
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| install-gallium-links.mk | ||
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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.