glsl: add several EmitNo* options, and MaxUnrollIterations

This increases the chance that GLSL programs will actually work.

Note that continues and returns are not yet lowered, so linking
will just fail if not supported.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 2977a29ab7..c32c09f8d4 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -97,10 +97,14 @@ _mesa_init_shader_state(GLcontext *ctx)
    struct gl_shader_compiler_options options;
    GLuint i;
    options.EmitHighLevelInstructions = GL_TRUE;
-   options.EmitContReturn = GL_TRUE;
    options.EmitCondCodes = GL_FALSE;
    options.EmitComments = GL_FALSE;
    options.EmitNoIfs = GL_FALSE;
+   options.EmitNoLoops = GL_FALSE;
+   options.EmitNoFunctions = GL_FALSE;
+   options.EmitNoCont = GL_FALSE;
+   options.EmitNoMainReturn = GL_FALSE;
+   options.MaxUnrollIterations = 32;
 
    /* Default pragma settings */
    options.DefaultPragmas.IgnoreOptimize = GL_FALSE;