nv50/ir: Decouple DataArray from the dictionary that maps locations to values.
The point is to keep an independent dictionary for each function.
The array that was being used as dictionary has been converted into a
"bimap" for two different reasons: first, because having an almost
empty instance of an array with as many entries as registers there are
in the program, once for every function, would be wasteful, and
second, because we want to be able to map Value pointers back to
locations at some point.
The reason is that several passes (regalloc, function argument
binding, inlining) are going to require the callees of a function to
be processed before the caller.
r300/compiler: Copy all instruction attributes during local transfoms
Instruction attributes like WriteALUResult and ALUResultCompare
were being discarded during the some of the local transformations.
This fixes the following piglit tests:
glsl1-inequality (vec2, pass)
loopfunc
fs-any-bvec2-using-if
fs-op-ne-bvec2-bvec2-using-if
fs-op-ne-ivec2-ivec2-using-if
fs-op-ne-mat2-mat2-using-if
fs-op-ne-vec2-vec2-using-if
fs-op-ne-mat2x3-mat2x3-using-if
fs-op-ne-mat2x4-mat2x4-using-if
https://bugs.freedesktop.org/show_bug.cgi?id=45921
NOTE: This is a candidate for the stable branches.
r300/compiler: Clear loop registers in vertex shaders w/o loops
The loop registers weren't being cleared, so any shader that was
executed after a shader containing loops was at risk of having a loop
randomly inserted into it.
This fixes over one hundred piglit tests, although these test
only failed during full piglit runs and would pass if
run individually. The exact number of piglit tests that this patch
fixes will vary depending on the version of piglit and the order the
tests are run.
NOTE: This is a candidate for the stable branches.
glsl: If an "if" has no "then" or "else" code left, remove it.
Cuts 8/1068 instructions from glyphy's fragment shaders on i965.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
glsl: Make a little tracking class for emitting IR lists.
This lets us significantly shorten p->instructions->push_tail(ir), and
will be used in a few more places.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Now we can fold a bunch of our expression setup in ff_fragment_shader
into single-line, parseable commits.
v2: Make it actually work. I wasn't setting num_components in the
mask structure, and not setting up a mask structure is way easier.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
glsl: Let ir_builder expressions take un-dereferenced variables.
Having to explicitly dereference is irritating and bloats the code,
when the compiler can detect and do the right thing.
v2: Use a little shim class to produce the automatic dereference
generation at compile time as opposed to runtime, while also
allowing compile-time type checking.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
glsl: Create an ir_builder helper for hand-generating IR.
The C++ constructors with placement new, while functional, are
extremely verbose, leading to generation of simple GLSL IR expressions
like (a * b + c * d) expanding to many lines of code and using lots of
temporary variables. By creating a new ir_builder.h that puts simple
generators in our namespace and taking advantage of ralloc_parent(),
we can generate much more compact code, at a minor runtime cost.
v2: Replace ir_instruction usage with just ir_rvalue.
v3: Drop remaining missed as_rvalue() in v2.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Francisco Jerez