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nir: add int_to_float lowering pass

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This new pass lowers ints and bools to floats. It allows hardware
that doesn't have native integers (e.g. Mali4x0) use the same
code paths as modern hardware.

It uses newly introduced pass to gather SSA types and should be
used as late as possible.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
This commit is contained in:
Vasily Khoruzhick
2019-04-30 22:25:05 -07:00
committed by Qiang Yu
parent 49025292fb
commit 443c5a3cd6
4 changed files with 215 additions and 0 deletions
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src/compiler/nir/nir.h
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@@ -3183,6 +3183,7 @@ bool nir_lower_alu(nir_shader *shader);
bool nir_lower_alu_to_scalar(nir_shader *shader);
bool nir_lower_bool_to_float(nir_shader *shader);
bool nir_lower_bool_to_int32(nir_shader *shader);
bool nir_lower_int_to_float(nir_shader *shader);
bool nir_lower_load_const_to_scalar(nir_shader *shader);
bool nir_lower_read_invocation_to_scalar(nir_shader *shader);
bool nir_lower_phis_to_scalar(nir_shader *shader);