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* glsl: Use M_LOG2E constant instead of calling log2Ian Romanick2010-12-011-3/+3
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* glsl: Add comments to lower_jumps (from the commit message).Kenneth Graunke2010-12-011-0/+31
| | | | | This is essentially Luca's commit message, but placed at the top of the file.
* glsl: Remove "discard" support from lower_jumps.Kenneth Graunke2010-12-011-11/+2
| | | | | | | | | | | | The new lower_discard and opt_discard_simplification passes should handle all the necessary transformations, so lower_jumps doesn't need to support it. Also, lower_jumps incorrectly handled conditional discards - it would unconditionally truncate all code after the discard. Rather than fixing the bug, simply remove the code. NOTE: This is a candidate for the 7.9 branch.
* glsl: Add a lowering pass to move discards out of if-statements.Kenneth Graunke2010-12-014-0/+201
| | | | | | | This should allow lower_if_to_cond_assign to work in the presence of discards, fixing bug #31690 and likely #31983. NOTE: This is a candidate for the 7.9 branch.
* glsl: Add an optimization pass to simplify discards.Kenneth Graunke2010-12-015-0/+184
| | | | NOTE: This is a candidate for the 7.9 branch.
* glsl/linker: Free any IR discarded by optimization passes.Kenneth Graunke2010-11-301-4/+19
| | | | | | | | | | | Previously, IR for a linked shader was allocated directly out of the gl_shader object - meaning all of it lived as long as the shader. Now, IR is allocated out of a temporary context, and any -live- IR is reparented/stolen to (effectively) the gl_shader. Any remaining IR can be freed. NOTE: This is a candidate for the 7.9 branch.
* glsl: Remove anti-built-in hacks from the print visitor.Kenneth Graunke2010-11-301-7/+0
| | | | | Now that we only import built-in signatures that are actually used, printing them is reasonable.
* glsl: Lazily import built-in function prototypes.Kenneth Graunke2010-11-303-31/+40
| | | | | | | | This makes a very simple 1.30 shader go from 196k of memory to 9k. NOTE: This -may- be a candidate for the 7.9 branch, as the benefit is substantial. However, it's not a simple change, so it may be wiser to wait for 7.10.
* glsl: Refactor out cloning of function prototypes.Kenneth Graunke2010-11-303-27/+24
| | | | This allows us to reuse some code and will be useful later.
* glsl: fix matrix type check in ir_algebraicAras Pranckevicius2010-11-301-2/+2
| | | | Fixes glsl-mat-mul-1.
* glsl: Quiet unreachable no-return-from-function warning.Eric Anholt2010-11-301-0/+2
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* glsl: Fix structure and array comparisions.Eric Anholt2010-11-301-2/+70
| | | | | | | | | | | | | | | We were trying to emit a single ir_expression to compare the whole thing. The backends (ir_to_mesa.cpp and brw_fs.cpp so far) expected ir_binop_any_nequal or ir_binop_all_equal to apply to at most a vector (with matrices broken down by the lowering pass). Break them down to a bunch of ORed or ANDed any_nequals/all_equals. Fixes: glsl-array-compare glsl-array-compare-02 glsl-fs-struct-equal glsl-fs-struct-notequal Bug #31909
* glsl: Add a helper constructor for expressions that works out result type.Eric Anholt2010-11-302-0/+104
| | | | | | This doesn't cover all expressions or all operand types, but it will complain if you overreach and it allows for much greater slack on the programmer's part.
* glsl: Make the symbol table's add_variable just use the variable's name.Eric Anholt2010-11-297-15/+15
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* glsl: Make the symbol table's add_function just use the function's name.Eric Anholt2010-11-296-9/+9
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* glsl: Add a virtual as_discard() method.Kenneth Graunke2010-11-251-0/+6
| | | | NOTE: This is candidate for the 7.9 branch.
* glsl: Use do_common_optimization in the standalone compiler.Kenneth Graunke2010-11-251-20/+1
| | | | NOTE: This is a candidate for the 7.9 branch.
* glsl: Don't inline function prototypes.Kenneth Graunke2010-11-251-0/+2
| | | | | | | | | | | | Currently, the standalone compiler tries to do function inlining before linking shaders (including linking against the built-in functions). This resulted in the built-in function _prototypes_ being inlined rather than the actual function definition. This is only known to fix a bug in the standalone compiler; most programs should be unaffected. Still, it seems like a good idea. NOTE: This is a candidate for the 7.9 branch.
* glsl: Add a helper function for determining if an rvalue could be a saturate.Eric Anholt2010-11-192-0/+58
| | | | | | Hardware pretty commonly has saturate modifiers on instructions, and this can be used in codegen to produce those, without everyone else needing to understand clamping other than min and max.
* glsl: Fix type of label 'default' in switch statement.Vinson Lee2010-11-191-1/+1
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* glsl: Add lower_vector.cpp to SConscript.Vinson Lee2010-11-191-0/+1
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* glsl: Fix matrix constructors with vector parametersIan Romanick2010-11-191-9/+9
| | | | | | | When the semantics of write masks in assignments were changed, this code was not correctly updated. Fixes piglit test glsl-mat-from-vec-ctor-01.
* glsl: Combine many instruction lowering passes into one.Kenneth Graunke2010-11-199-376/+273
| | | | | | | This should save on the overhead of tree-walking and provide a convenient place to add more instruction lowering in the future. Signed-off-by: Ian Romanick <[email protected]>
* glsl: Simplify a type check by using type->is_integer().Kenneth Graunke2010-11-191-2/+1
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* glsl: Add ir_quadop_vector expressionIan Romanick2010-11-199-6/+327
| | | | | | | | | | The vector operator collects 2, 3, or 4 scalar components into a vector. Doing this has several advantages. First, it will make ud-chain tracking for components of vectors much easier. Second, a later optimization pass could collect scalars into vectors to allow generation of SWZ instructions (or similar as operands to other instructions on R200 and i915). It also enables an easy way to generate IR for SWZ instructions in the ARB_vertex_program assembler.
* glsl: Add unary ir_expression constructorIan Romanick2010-11-192-0/+21
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* glsl: Add ir_rvalue::is_negative_one predicateIan Romanick2010-11-192-3/+58
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* glsl: Eliminate assumptions about size of ir_expression::operandsIan Romanick2010-11-195-6/+9
| | | | This may grow in the near future.
* glsl: Add ir_unop_sin_reduced and ir_unop_cos_reducedIan Romanick2010-11-194-0/+8
| | | | | | | | | | | | The operate just like ir_unop_sin and ir_unop_cos except that they expect their inputs to be limited to the range [-pi, pi]. Several GPUs require this limited range for their sine and cosine instructions, so having these as operations (along with a to-be-written lowering pass) helps this architectures. These new operations also matche the semantics of the GL_ARB_fragment_program SCS instruction. Having these as operations helps in generating GLSL IR directly from assembly fragment programs.
* glsl: Make is_zero and is_one virtual methods of ir_rvalueIan Romanick2010-11-182-21/+36
| | | | | This eliminates the need in some cames to validate that an rvalue is an ir_constant before checking to see if it's 0 or 1.
* glsl: Fix 'control reaches end of non-void function' warning.Vinson Lee2010-11-171-0/+3
| | | | | | | Fix this GCC warning. ir.cpp: In static member function 'static unsigned int ir_expression::get_num_operands(ir_expression_operation)': ir.cpp:199: warning: control reaches end of non-void function
* glsl: Improve usage message for glsl_compilerChad Versace2010-11-171-9/+19
| | | | | | | | | | | | | | | | | The new usage message lists possible command line options. (Newcomers to Mesa currently have to trawl through the source to find the command line options, and we should save them from that trouble.) Example Output -------------- usage: ./glsl_compiler [options] <file.vert | file.geom | file.frag> Possible options are: --glsl-es --dump-ast --dump-hir --dump-lir --link
* glsl: Refactor get_num_operands.Kenneth Graunke2010-11-172-71/+21
| | | | | | | | | | This adds sentinel values to the ir_expression_operation enum type: ir_last_unop, ir_last_binop, and ir_last_opcode. They are set to the previous one so they don't trigger "unhandled case in switch statement" warnings, but should never be handled directly. This allows us to remove the huge array of 1s and 2s in ir_expression::get_num_operands().
* glsl: Remove the ir_binop_cross opcode.Kenneth Graunke2010-11-174-21/+8
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* Refresh autogenerated file builtin_function.cpp.Kenneth Graunke2010-11-171-3/+5
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* glsl: Reimplement the "cross" built-in without ir_binop_cross.Kenneth Graunke2010-11-171-3/+5
| | | | | | We are not aware of any GPU that actually implements the cross product as a single instruction. Hence, there's no need for it to be an opcode. Future commits will remove it entirely.
* Regenerate glcpp parser.Kenneth Graunke2010-11-171-85/+90
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* glsl: Unconditionally define GL_FRAGMENT_PRECISION_HIGH in ES2 shaders.Kenneth Graunke2010-11-171-1/+6
| | | | | | | | | This is really supposed to be defined only if the driver supports highp in the fragment shader - but all of our current ES2 implementations do. So, just define it. In the future, we'll need to add a flag to gl_context and only define the macro if the flag is set. "Fixes" freedesktop.org bug #31673.
* glsl: Fix Doxygen tag \file in recently renamed filesChad Versace2010-11-1723-23/+23
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* glsl: Fix erroneous cast in ast_jump_statement::hir()Chad Versace2010-11-171-2/+1
| | | | | | Return values were erroneously cast from (ir_rvalue*) to (ir_expression*). NOTE: This is a candidate for the 7.9 branch.
* glsl: Fix constant expression handling for <, >, <=, >= on vectors.Kenneth Graunke2010-11-171-48/+60
| | | | | | | | | | | | | | | | | ir_binop_less, ir_binop_greater, ir_binop_lequal, and ir_binop_gequal are defined to work on vectors as well as scalars, as long as the two operands have the same type. This is evident from both ir_validate.cpp and our use of these opcodes in the GLSL lessThan, greaterThan, lessThanEqual, greaterThanEqual built-in functions. Found by code inspection. Not known to fix any bugs. Presumably, our tests for the built-in comparison functions must pass because C.E. handling is done on the ir_call of "greaterThan" rather than the inlined opcode. The C.E. handling of the built-in function calls is correct. NOTE: This is a candidate for the 7.9 branch.
* Refresh autogenerated glcpp parser.Kenneth Graunke2010-11-162-200/+210
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* glcpp: Define GL_FRAGMENT_PRECISION_HIGH if GLSL version >= 1.30.Kenneth Graunke2010-11-161-0/+3
| | | | Per section 4.5.4 of the GLSL 1.30 specification.
* glsl: Simplify generation of swizzle for vector constructorsIan Romanick2010-11-161-6/+5
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* glsl: Refactor is_vec_{zero,one} to be methods of ir_constantIan Romanick2010-11-163-68/+101
| | | | These predicates will be used in other places soon.
* glsl: Add ir_constant_expression.cpp to SConscript.Vinson Lee2010-11-151-0/+1
| | | | | | This was accidentally removed in commit 32aaf89823de11e98cb59d5ec78c66cd3e74bcd4. Fixes SCons builds.
* glsl: remove opt_constant_expression.cpp from SConscriptBrian Paul2010-11-151-3/+2
| | | | And alphabetize the opt_* files.
* glsl: fix assorted MSVC warningsBrian Paul2010-11-151-13/+13
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* glsl: Rename various ir_* files to lower_* and opt_*.Kenneth Graunke2010-11-1525-47/+47
| | | | | This helps distinguish between lowering passes, optimization passes, and other compiler code.
* glsl: Remove unused and out of date Makefile.am.Kenneth Graunke2010-11-151-81/+0
| | | | | This was from when glsl2 lived in a separate repository and used automake.
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