[v3,06/42] intel/compiler: lower some 16-bit float operations to 32-bit

Submitted by Iago Toral Quiroga on Jan. 15, 2019, 1:53 p.m.

Details

Message ID 20190115135414.2313-7-itoral@igalia.com
State New
Headers show
Series "intel: VK_KHR_shader_float16_int8 implementation" ( rev: 5 4 ) in Mesa

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Commit Message

Iago Toral Quiroga Jan. 15, 2019, 1:53 p.m.
The hardware doesn't support half-float for these.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
---
 src/intel/compiler/brw_nir.c | 5 +++++
 1 file changed, 5 insertions(+)

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diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 572ab824a94..f0fe7f870c2 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -637,6 +637,11 @@  lower_bit_size_callback(const nir_alu_instr *alu, UNUSED void *data)
    case nir_op_irem:
    case nir_op_udiv:
    case nir_op_umod:
+   case nir_op_fceil:
+   case nir_op_ffloor:
+   case nir_op_ffract:
+   case nir_op_fround_even:
+   case nir_op_ftrunc:
       return 32;
    default:
       return 0;