Dave Airlie
7f77554b5b
Noticed while looking at Sascha Willems deferred shaders.
This is a bit of an llvm workaround, llvm was producing this:
v_cvt_pkrtz_f16_f32_e64 v4, v7, v8 ; D2960004 00021107
v_cvt_pkrtz_f16_f32_e64 v6, v9, 1.0 ; D2960006 0001E509
s_waitcnt vmcnt(0) ; BF8C0F70
exp mrt0 v4, v4, v6, v6 compr ; C400040F 00000604
s_waitcnt expcnt(0) ; BF8C0F0F
v_cvt_pkrtz_f16_f32_e64 v4, v12, v5 ; D2960004 00020B0C
v_cvt_pkrtz_f16_f32_e64 v5, v14, 1.0 ; D2960005 0001E50E
exp mrt1 v4, v4, v5, v5 compr ; C400041F 00000504
s_waitcnt expcnt(0) ; BF8C0F0F
v_cvt_pkrtz_f16_f32_e64 v0, v0, v1 ; D2960000 00020300
v_cvt_pkrtz_f16_f32_e64 v1, v2, v3 ; D2960001 00020702
exp mrt2 v0, v0, v1, v1 done compr vm ; C4001C2F 00000100
After this change:
v_cvt_pkrtz_f16_f32_e64 v4, v7, v8 ; D2960004 00021107
s_waitcnt vmcnt(0) ; BF8C0F70
v_cvt_pkrtz_f16_f32_e64 v0, v0, v1 ; D2960000 00020300
v_cvt_pkrtz_f16_f32_e64 v6, v9, 1.0 ; D2960006 0001E509
v_cvt_pkrtz_f16_f32_e64 v5, v12, v5 ; D2960005 00020B0C
v_cvt_pkrtz_f16_f32_e64 v7, v14, 1.0 ; D2960007 0001E50E
exp mrt0 v4, v4, v6, v6 compr ; C400040F 00000604
v_cvt_pkrtz_f16_f32_e64 v1, v2, v3 ; D2960001 00020702
exp mrt1 v5, v5, v7, v7 compr ; C400041F 00000705
exp mrt2 v0, v0, v1, v1 done compr vm ; C4001C2F 00000100
No waitcnt for exports are emitted.
v2: fixup index->mrt mapping (Bas).
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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 https://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.