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authorIan Romanick <[email protected]>2013-03-06 11:05:14 -0800
committerIan Romanick <[email protected]>2013-05-13 12:05:18 -0700
commitf274a2ca8733059bdd4f1c456ed4f6df7d7ec008 (patch)
tree002b5b4e0268463d283b4ab2cbcb757c97312533 /src/mesa
parentb0bb6103d23c16d23b0ec617746b4b0d1c22075d (diff)
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 <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/program/ir_to_mesa.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 258b864f559..98281140aae 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -1489,6 +1489,7 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
emit(ir, OPCODE_LRP, result_dst, op[2], op[1], op[0]);
break;
+ case ir_binop_vector_extract:
case ir_binop_bfm:
case ir_triop_bfi:
case ir_triop_bitfield_extract: