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This along with several previous commits fix test CorrectUnsizedArray.frag.
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This will make it easier to support more (valid) kinds of redeclarations.
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decl->identifier is part of the AST, so it doesn't live very long.
Instead, add var->name which is owned by var.
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_mesa_glsl_parse_state should be the parent for all temporary allocation
done while compiling a shader. glsl_shader should only be used as the
parent for the shader's final IR---the _result_ of compilation.
Since many IR instructions may be added or discarded during optimization
passes, IR should not ever be allocated to glsl_shader directly.
Done via sed -i s/talloc_parent(state)/state/g and s/talloc_parent(st)/st/g.
This also removes a ton of talloc_parent calls, which may help performance.
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Fixes piglit test glsl-implicit-conversion-01.
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All scalar, vector, and matrix constructors are generated in-line
during AST-to-HIR translation. There is no longer any need to
generate function versions of the constructors.
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This doesn't do any control flow analysis to ensure that the return
statements are actually reached.
Fixes piglit tests function5.frag and function-07.vert.
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Fixes piglit test return-qualifier.frag.
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From my reading of the specification, implicit conversions are not
allowed. ATI seems to agree, though nVidia allows it without warning.
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