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components() includes matrix columns, so if this code encountered a
matrix, it would ask for something like a vec9 or vec16. This is
clearly not what you want.
Earlier code now prevents this from seeing matrices, but we should still
use vector_elements, for clarity.
Signed-off-by: Kenneth Graunke <[email protected]>
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This helped me track down the bug fixed in the previous commit.
Signed-off-by: Kenneth Graunke <[email protected]>
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It doesn't handle things like (vector * matrix) correctly, and
apparently Matt's intention was to bail.
Fixes shader compilation in Natural Selection 2.
Signed-off-by: Kenneth Graunke <[email protected]>
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If we saw a tree that looked like
vec3
/ \
vec3 float
/ \
vec3 float
/ \
vec3 float
We would see that all of the expression types were vec3, and then
rebalance to
vec3
/ \
vec3 vec3 <-- should be float
/ \ / \
vec3 float float float
This patch adds code to visit the rebalanced tree and update the
expression types from the bottom up.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80880
Reviewed-by: Kenneth Graunke <[email protected]>
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The intention of this pass was to give us better instruction scheduling
opportunities, but it unexpectedly reduced some instruction counts as
well:
total instructions in shared programs: 1666639 -> 1666073 (-0.03%)
instructions in affected programs: 54612 -> 54046 (-1.04%)
(and trades 4 SIMD16 programs in SS3)
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