Merge remote-tracking branch 'origin/released'

Conflicts:
	pixman/pixman/pixman-mmx.c
	xorg-server/Xext/shm.c
	xorg-server/Xext/syncsrv.h
	xorg-server/Xext/xvmain.c
	xorg-server/Xi/exevents.c
	xorg-server/Xi/opendev.c
	xorg-server/composite/compalloc.c
	xorg-server/composite/compoverlay.c
	xorg-server/dix/colormap.c
	xorg-server/dix/devices.c
	xorg-server/dix/dispatch.c
	xorg-server/dix/dixfonts.c
	xorg-server/dix/eventconvert.c
	xorg-server/dix/events.c
	xorg-server/dix/gc.c
	xorg-server/dix/getevents.c
	xorg-server/dix/main.c
	xorg-server/dix/privates.c
	xorg-server/dix/registry.c
	xorg-server/dix/resource.c
	xorg-server/exa/exa_accel.c
	xorg-server/exa/exa_migration_classic.c
	xorg-server/exa/exa_unaccel.c
	xorg-server/fb/fb.h
	xorg-server/fb/fbcopy.c
	xorg-server/fb/fbpixmap.c
	xorg-server/glx/dispatch.h
	xorg-server/glx/glapi.h
	xorg-server/glx/glapi_gentable.c
	xorg-server/glx/glapitable.h
	xorg-server/glx/glprocs.h
	xorg-server/glx/glxcmds.c
	xorg-server/glx/glxcmdsswap.c
	xorg-server/glx/glxdricommon.c
	xorg-server/glx/glxdriswrast.c
	xorg-server/glx/glxext.c
	xorg-server/glx/indirect_dispatch.c
	xorg-server/glx/indirect_dispatch.h
	xorg-server/glx/indirect_dispatch_swap.c
	xorg-server/glx/indirect_size.h
	xorg-server/glx/indirect_size_get.h
	xorg-server/glx/indirect_table.c
	xorg-server/glx/indirect_util.c
	xorg-server/glx/rensize.c
	xorg-server/glx/single2swap.c
	xorg-server/glx/singlepix.c
	xorg-server/glx/singlepixswap.c
	xorg-server/glx/singlesize.c
	xorg-server/hw/dmx/dmxinit.c
	xorg-server/hw/kdrive/ephyr/ephyr.c
	xorg-server/hw/kdrive/ephyr/hostx.c
	xorg-server/hw/kdrive/ephyr/hostx.h
	xorg-server/hw/kdrive/src/kinput.c
	xorg-server/hw/xfree86/common/compiler.h
	xorg-server/hw/xwin/InitInput.c
	xorg-server/hw/xwin/InitOutput.c
	xorg-server/hw/xwin/ddraw.h
	xorg-server/hw/xwin/glx/glwrap.c
	xorg-server/hw/xwin/glx/indirect.c
	xorg-server/hw/xwin/glx/wgl_ext_api.h
	xorg-server/hw/xwin/glx/winpriv.c
	xorg-server/hw/xwin/win.h
	xorg-server/hw/xwin/winallpriv.c
	xorg-server/hw/xwin/winauth.c
	xorg-server/hw/xwin/winclipboard.h
	xorg-server/hw/xwin/winclipboardinit.c
	xorg-server/hw/xwin/winclipboardthread.c
	xorg-server/hw/xwin/winclipboardunicode.c
	xorg-server/hw/xwin/winclipboardwndproc.c
	xorg-server/hw/xwin/winclipboardwrappers.c
	xorg-server/hw/xwin/winclipboardxevents.c
	xorg-server/hw/xwin/wincmap.c
	xorg-server/hw/xwin/winconfig.c
	xorg-server/hw/xwin/wincreatewnd.c
	xorg-server/hw/xwin/wincursor.c
	xorg-server/hw/xwin/windialogs.c
	xorg-server/hw/xwin/winengine.c
	xorg-server/hw/xwin/winerror.c
	xorg-server/hw/xwin/wingc.c
	xorg-server/hw/xwin/wingetsp.c
	xorg-server/hw/xwin/winkeybd.c
	xorg-server/hw/xwin/winkeybd.h
	xorg-server/hw/xwin/winlayouts.h
	xorg-server/hw/xwin/winmisc.c
	xorg-server/hw/xwin/winmonitors.c
	xorg-server/hw/xwin/winmouse.c
	xorg-server/hw/xwin/winmsg.c
	xorg-server/hw/xwin/winmsg.h
	xorg-server/hw/xwin/winmultiwindowclass.c
	xorg-server/hw/xwin/winmultiwindowicons.c
	xorg-server/hw/xwin/winmultiwindowshape.c
	xorg-server/hw/xwin/winmultiwindowwindow.c
	xorg-server/hw/xwin/winmultiwindowwm.c
	xorg-server/hw/xwin/winmultiwindowwndproc.c
	xorg-server/hw/xwin/winnativegdi.c
	xorg-server/hw/xwin/winpfbdd.c
	xorg-server/hw/xwin/winpixmap.c
	xorg-server/hw/xwin/winpolyline.c
	xorg-server/hw/xwin/winprefs.c
	xorg-server/hw/xwin/winprocarg.c
	xorg-server/hw/xwin/winregistry.c
	xorg-server/hw/xwin/winscrinit.c
	xorg-server/hw/xwin/winsetsp.c
	xorg-server/hw/xwin/winshaddd.c
	xorg-server/hw/xwin/winshadddnl.c
	xorg-server/hw/xwin/winshadgdi.c
	xorg-server/hw/xwin/wintrayicon.c
	xorg-server/hw/xwin/winwin32rootless.c
	xorg-server/hw/xwin/winwin32rootlesswindow.c
	xorg-server/hw/xwin/winwin32rootlesswndproc.c
	xorg-server/hw/xwin/winwindow.c
	xorg-server/hw/xwin/winwindow.h
	xorg-server/hw/xwin/winwindowswm.c
	xorg-server/hw/xwin/winwndproc.c
	xorg-server/include/callback.h
	xorg-server/include/dixstruct.h
	xorg-server/include/misc.h
	xorg-server/include/os.h
	xorg-server/include/scrnintstr.h
	xorg-server/mi/micmap.c
	xorg-server/mi/miinitext.c
	xorg-server/mi/mioverlay.c
	xorg-server/mi/misprite.c
	xorg-server/mi/mivaltree.c
	xorg-server/mi/miwindow.c
	xorg-server/miext/damage/damage.c
	xorg-server/miext/rootless/rootlessGC.c
	xorg-server/miext/rootless/rootlessWindow.c
	xorg-server/os/WaitFor.c
	xorg-server/os/access.c
	xorg-server/os/connection.c
	xorg-server/os/io.c
	xorg-server/os/log.c
	xorg-server/os/osinit.c
	xorg-server/os/utils.c
	xorg-server/os/xdmcp.c
	xorg-server/os/xprintf.c
	xorg-server/os/xstrans.c
	xorg-server/render/mipict.c
	xorg-server/xkb/xkbActions.c
	xorg-server/xkb/xkbInit.c
	xorg-server/xkeyboard-config/compat/default.in

1 files changed, 34 insertions, 7 deletions

diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index 82bddb003..8278e43ad 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -258,11 +258,36 @@ validate_vertex_shader_executable(struct gl_shader_program *prog,
    if (shader == NULL)
       return true;
 
-   find_assignment_visitor find("gl_Position");
-   find.run(shader->ir);
-   if (!find.variable_found()) {
-      linker_error(prog, "vertex shader does not write to `gl_Position'\n");
-      return false;
+   /* From the GLSL 1.10 spec, page 48:
+    *
+    *     "The variable gl_Position is available only in the vertex
+    *      language and is intended for writing the homogeneous vertex
+    *      position. All executions of a well-formed vertex shader
+    *      executable must write a value into this variable. [...] The
+    *      variable gl_Position is available only in the vertex
+    *      language and is intended for writing the homogeneous vertex
+    *      position. All executions of a well-formed vertex shader
+    *      executable must write a value into this variable."
+    *
+    * while in GLSL 1.40 this text is changed to:
+    *
+    *     "The variable gl_Position is available only in the vertex
+    *      language and is intended for writing the homogeneous vertex
+    *      position. It can be written at any time during shader
+    *      execution. It may also be read back by a vertex shader
+    *      after being written. This value will be used by primitive
+    *      assembly, clipping, culling, and other fixed functionality
+    *      operations, if present, that operate on primitives after
+    *      vertex processing has occurred. Its value is undefined if
+    *      the vertex shader executable does not write gl_Position."
+    */
+   if (prog->Version < 140) {
+      find_assignment_visitor find("gl_Position");
+      find.run(shader->ir);
+      if (!find.variable_found()) {
+	 linker_error(prog, "vertex shader does not write to `gl_Position'\n");
+	 return false;
+      }
    }
 
    prog->Vert.ClipDistanceArraySize = 0;
@@ -2175,7 +2200,7 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
     * of all shaders must match.
     */
    assert(min_version >= 100);
-   assert(max_version <= 130);
+   assert(max_version <= 140);
    if ((max_version >= 130 || min_version == 100)
        && min_version != max_version) {
       linker_error(prog, "all shaders must use same shading "
@@ -2269,7 +2294,9 @@ link_shaders(struct gl_context *ctx, struct gl_shader_program *prog)
       if (ctx->ShaderCompilerOptions[i].LowerClipDistance)
          lower_clip_distance(prog->_LinkedShaders[i]->ir);
 
-      while (do_common_optimization(prog->_LinkedShaders[i]->ir, true, false, 32))
+      unsigned max_unroll = ctx->ShaderCompilerOptions[i].MaxUnrollIterations;
+
+      while (do_common_optimization(prog->_LinkedShaders[i]->ir, true, false, max_unroll))
 	 ;
    }