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| author | Ian Romanick <ian.d.romanick@intel.com> | 2013-03-06 11:05:14 -0800 |
|---|---|---|
| committer | Ian Romanick <ian.d.romanick@intel.com> | 2013-05-13 12:05:18 -0700 |
| commit | f274a2ca8733059bdd4f1c456ed4f6df7d7ec008 (patch) | |
| tree | 002b5b4e0268463d283b4ab2cbcb757c97312533 /src/glsl/ir.cpp | |
| parent | b0bb6103d23c16d23b0ec617746b4b0d1c22075d (diff) | |
| download | external_mesa3d-f274a2ca8733059bdd4f1c456ed4f6df7d7ec008.zip external_mesa3d-f274a2ca8733059bdd4f1c456ed4f6df7d7ec008.tar.gz external_mesa3d-f274a2ca8733059bdd4f1c456ed4f6df7d7ec008.tar.bz2 | |
glsl: Add ir_binop_vector_extract
The new opcode is used to get a single field from a vector. The field
index may not be constant. This will eventually replace
ir_dereference_array of vectors. This is similar to the extractelement
instruction in LLVM IR.
http://llvm.org/docs/LangRef.html#extractelement-instruction
v2: Convert tabs to spaces. Suggested by Eric.
v3: Add array index range checking to ir_binop_vector_extract constant
expression handling. Suggested by Ken.
v4: Use CLAMP instead of MIN2(MAX2()). Suggested by Ken.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/glsl/ir.cpp')
| -rw-r--r-- | src/glsl/ir.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp index 2c54525..737d8d4 100644 --- a/src/glsl/ir.cpp +++ b/src/glsl/ir.cpp @@ -399,6 +399,10 @@ ir_expression::ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1) this->type = op0->type; break; + case ir_binop_vector_extract: + this->type = op0->type->get_scalar_type(); + break; + default: assert(!"not reached: missing automatic type setup for ir_expression"); this->type = glsl_type::float_type; @@ -510,6 +514,7 @@ static const char *const operator_strs[] = { "packHalf2x16_split", "bfm", "ubo_load", + "vector_extract", "lrp", "bfi", "bitfield_extract", |