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These correspond to the EmitVertex and EndPrimitive functions in GLSL.
v2 (Paul Berry <stereotype441@gmail.com>): Add stub implementations of
new pure visitor functions to i965's vec4_visitor and fs_visitor
classes.
v3 (Paul Berry <stereotype441@gmail.com>): Rename classes to be more
consistent with the names used in the GL spec.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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No more forgetting to #include "ir_print_visitor.h" when doing temporary
debug code, or forgetting and leaving it in after removing your temporary
debug code. Also, available from C code so you don't need to move the
caller to C++ just to call it (see also: ir_to_mesa.cpp).
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
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Currently, ir_call can be used as either a statement (for void
functions) or a value (for non-void functions). This is rather awkward,
as it's the only class that can be used in both forms.
A number of places use ir_call::get_error_instruction() to construct a
generic value of error_type. If ir_call is to become a statement, it
can no longer serve this purpose.
Unfortunately, none of our classes are particularly well suited for
this, and creating a new one would be rather aggrandizing. So, this
patch introduces ir_rvalue::error_value(), a static method that creates
an instance of the base class, ir_rvalue. This has the nice property
that you can't accidentally try and access uninitialized fields (as it
doesn't have any). The downside is that the base class is no longer
abstract.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
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Since GLSL IR allows multiple ir_variables to share the same name, we
need to generate unique names when printing the IR. Previously, we
always used %s@%p, appending the ir_variable's memory address.
While this worked, it had two drawbacks:
- When there aren't duplicates, the extra "@0x669a3e88" is useless
and makes the code harder to read.
- Real duplicates were hard to tell apart:
channel_expressions@0x6699e3c8 vs. channel_expressions@0x6699ddd8
We now append @2, @3, @4, and so on, but only where necessary to
distinguish duplicates. Since we only do this at print time, any
performance impact is irrelevant.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <idr@freedesktop.org>
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No more trying to match parens in my head when looking at the body of
a short function containing an if statement.
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