diff options
| author | Matt Turner <[email protected]> | 2013-08-19 10:45:46 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2013-09-09 15:01:08 -0700 |
| commit | 7aaa38728f93bfb69573e0d866f24e8cb41836f0 (patch) | |
| tree | f4de2a2d80ac24087c37dea60b37fe41d9745644 /src/glsl/ir.h | |
| parent | 60850b7b9fbb9827d6841dbd4a4cd9b1e3554d45 (diff) | |
glsl: Add conditional-select IR.
It's a ?: that operates per-component on vectors. Will be used in
upcoming lowering pass for ldexp and the implementation of frexp.
csel(selector, a, b):
per-component result = selector ? a : b
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/glsl/ir.h')
| -rw-r--r-- | src/glsl/ir.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 691732b5627..2637b40e28b 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -1197,6 +1197,18 @@ enum ir_expression_operation { ir_triop_lrp, /** + * \name Conditional Select + * + * A vector conditional select instruction (like ?:, but operating per- + * component on vectors). + * + * \see lower_instructions_visitor::ldexp_to_arith + */ + /*@{*/ + ir_triop_csel, + /*@}*/ + + /** * \name Second half of a lowered bitfieldInsert() operation. * * \see lower_instructions::bitfield_insert_to_bfm_bfi |