Previously, generating inlined function bodies was going to be
difficult, as there was no mapping between the body's declaration of
variables where parameter values were supposed to live and the
parameter variables that a caller would use in paramater setup.
Presumably this also have been a problem for actual codegen.
Using '#extension foo: warn' instructs the compiler to generate a
warning when some feature of the extension 'foo' is used. This patch
adds some infrastructure needed to support that for variables.
Similar changes will be needed for types and built-in functions.
Previously the same code was generated for a while loop and a do-while
loop. This pulls the code that generates the conditional break into a
separate method. This method is called either at the beginning or the
end depending on the loop type.
Reported-by: Kenneth Graunke <kenneth@whitecape.org>
Specifically, handle 'break' and 'continue' inside loops.
This causes the following tests to pass:
glslparsertest/shaders/break.frag
glslparsertest/shaders/continue.frag
This causes the following tests to pass:
glslparsertest/shaders/dowhile.frag
glslparsertest/shaders/while.frag
glslparsertest/shaders/while1.frag
glslparsertest/shaders/while2.frag
When an unsized array is accessed with a constant extension index this
sets a lower bound on the allowable sizes. When the unsized array
gets a size set due to a whole-array assignment, this size must be at
least as large as the implied lower bound.
This causes the following tests to pass:
glslparsertest/glsl2/array-16.vert
This causes the following tests to pass:
glslparsertest/glsl2/matrix-11.vert
glslparsertest/glsl2/matrix-12.vert
glslparsertest/shaders/CorrectParse2.vert
glslparsertest/shaders/CorrectSwizzle2.frag
In GLSL 1.10 this was not allowed, but in GLSL 1.20 and later it is.
This causes the following tests to pass:
glslparsertest/glsl2/array-09.vert
glslparsertest/glsl2/array-13.vert
Whole arrays are assignable in GLSL 1.20 and later, but it's not clear
how to handle that within the IR because the IR is supposed to be
shading language version agnostic.
Eric Anholt