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Otherwise, with repeated program recompile, we never free the results
of the previous compile.
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I didn't expect that this would really work, but it turns out there
are shaders in the wild that do it.
Fixes: (with swrast)
glsl-fs-main-return
glsl-vs-main-return
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These binops are the vector-to-bool comparisons, not vec-to-bvec. We
likely want both operations avilable as expression, since 915 and 965
FS naturally does the vector version, while 965 VS can also naturally
do the scalar version. However, we can save that until later.
Fixes:
glsl-fs-vec4-operator-equal.shader_test
glsl-fs-vec4-operator-notequal.shader_test
glsl-vs-vec4-operator-equal.shader_test
glsl-vs-vec4-operator-notequal.shader_test
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In one optimization pass, register files may have been messed therefore
merging instructions which use the same index in two different register
files.
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This will make extracting source to produce minimal testcases for
shader compile issues easier.
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Conflicts:
src/mesa/program/prog_optimize.c
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This lets drivers override ir_to_mesa with their own codegen, or at
least have a native alternative.
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These are passes that we expect all codegen to be happy with. The
other lowering passes for Mesa IR are moved to the Mesa IR generator.
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This is the patch from Benjamin's Aug 11, 2010 email with minor fixes
(such as moving declarations before code)
Signed-off-by: Brian Paul <brianp@vmware.com>
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Include mtypes.h for GLcontext and gl_register_file symbols.
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Remove mtypes.h.
Remove prog_statevars.h.
Include glheader.h for GL symbols.
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Include stdio.h for FILE symbol.
Include glheader.h for GL symbols.
Include mtypes.h for GLcontext symbol.
Add forward declarations.
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Include mtypes.h for GLcontext symbol.
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Include glheader.h for GLfloat symbol.
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Remove mfeatures.h.
Include glheader.h for GL symbols.
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Include mtypes.h for GLcontext symbol.
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Include mtypes.h for GLcontext symbol.
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Include mtypes.h for GLcontext symbol.
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Include mtypes.h for GLcontext symbol.
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All the current HW backends transform subtract to adding the negation,
so I haven't bothered peepholing it back out in Mesa IR. This allows
some subtract of subtract to get removed in ir_algebraic.
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Whereas constant folding evaluates constant expressions at rvalue
nodes, constant propagation tracks constant components of vectors
across execution to replace (possibly swizzled) variable dereferences
with constant values, triggering possible constant folding or reduced
variable liveness.
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This lets us handle arrays much better than trying to work backwards
from assembly.
Fixes fbo-drawbuffers-maxtargets on swrast (i965 needs loop unrolling)
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Support for samplers in general is still incomplete -- anything in a
uniform struct will still be broken. But that doesn't appear to be
any different from master.
Fixes:
glsl-fs-uniform-sampler-array.shader_test
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Fixes glean shaderAPI.
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Fixes a failure in glean shaderAPI.
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Fixes piglit test array_texture.
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Fixes ir_to_mesa handling of unop_log, which used the weird ARB_vp LOG
opcode that doesn't do what we want. This also lets the multiplication
coefficients in there get constant-folded, possibly.
Fixes:
glsl-fs-log
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Optimizations at compile time should generally be done with the goal
of reducing instruction count so that other work, particularly
linking, is less time-consuming if the shader is used multiple times.
However, function inlining increases instruction count for the inlined
function bodies without removing the original function body, since we
don't know if it will be used at link time or not.
Reduces the runtime of linking and executing a Yo Frankie fragment
shader from 0.9 seconds to 0.5 seconds (-45.9%, +/- 2.2%, n=5).
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Mixing stderr (_mesa_print_program, _mesa_print_instruction,
_mesa_print_alu) with stdout means that when writing both to a file,
there isn't a consistent ordering between the two.
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While the Mesa IR dumping includes some corresponding GLSL IR for
correlating Mesa IR to GLSL IR, it doesn't completely express it.
This printing includes things like variable declarations and control
flow structure that is hard to read otherwise.
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