Set lower bound on size implied by whole-array assignment
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.
Track max accessed array element, reject additional out-of-bounds accesses
For unsized arrays, we can't flag out-of-bounds accesses until the
array is redeclared with a size. Track the maximum accessed element
and generate an error if the declaration specifies a size that would
cause that access to be out-of-bounds.
This causes the following tests to pass:
glslparsertest/shaders/array10.frag
Set source locations on AST nodes so error messages print locations.
I haven't verified that these are all correct, but it's still a lot
better than not having anything.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
ast_function::hir consists of bits pulled out of
ast_function_definition::hir. In fact, the later uses the former to
do a lot of its processing. Several class private data fields were
added to ast_function to facilitate communicate between the two.
This causes the following tests to pass:
glslparsertest/shaders/CorrectModule.frag
This causes the following tests to fail. These shaders were
previously failing to compile, but they were all failing for the wrong
reasons.
glslparsertest/shaders/function9.frag
glslparsertest/shaders/function10.frag
Use ir_variable::clone to copy parameters to the function body
Several other code movements were also done. This partitions this
function into two halves. The first half processes the prototype
part, and the second have processes the actual function definition.
The coming patch series will parition ast_function_definition::hir
into (at least) two separate functions.
Eric Anholt