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NOTE: This is a candidate for the 7.9 branch.
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Fixes these GCC warnings on linux-x86 build.
r300_fragprog_swizzle.c: In function ‘r300_swizzle_is_native’:
r300_fragprog_swizzle.c:120: warning: ISO C90 forbids mixed declarations and code
r300_fragprog_swizzle.c: In function ‘r300_swizzle_split’:
r300_fragprog_swizzle.c:159: warning: ISO C90 forbids mixed declarations and code
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The r300 compiler can now emit instructions that select from the presubtract
source. A peephole optimization has been added to convert instructions like:
ADD Temp[0].x, none.1, -Temp[1].x into the INV (1 - src0) presubtract
operation.
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Signed-off-by: Marek Olšák <maraeo@gmail.com>
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This replaces the old NQSSADCE code with the same functionality, but quite
different design. Instead of doing a single integerated pass, we now build
explicit data structures representing the dataflow.
This will enable analysis of flow control instruction, and could potentially
open an avenue for several dataflow based optimizations, such as peephole
optimization, fusing MUL+ADD to MAD, and so on.
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In particular, this removes the dependency on prog_instruction, which
unfortunately creates some code duplication, but also opens a path towards
adding some hardware-specific things in there.
Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
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Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
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Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
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This is in preparation of sharing the fragment program compiler with Gallium:
Compiler code is moved into its own directory and modified so that it no
longer depends on driver structures.
Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
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