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nir: implement GLSL.std.450 NMax, NMIn and NClamp operations

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v2: NIR fmax/fmin already handles NaN (Connor).

Reviewed by: Elie Tournier <elie.tournier@collabora.com>
This commit is contained in:
Juan A. Suarez Romero
2017-06-08 11:50:55 +00:00
parent b5ae17fe59
commit 7ee409dd4e
1 changed files with 3 additions and 0 deletions
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3
src/compiler/spirv/vtn_glsl450.c
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@@ -433,9 +433,11 @@ vtn_nir_alu_op_for_spirv_glsl_opcode(enum GLSLstd450 opcode)
case GLSLstd450Log2: return nir_op_flog2;
case GLSLstd450Sqrt: return nir_op_fsqrt;
case GLSLstd450InverseSqrt: return nir_op_frsq;
case GLSLstd450NMin: return nir_op_fmin;
case GLSLstd450FMin: return nir_op_fmin;
case GLSLstd450UMin: return nir_op_umin;
case GLSLstd450SMin: return nir_op_imin;
case GLSLstd450NMax: return nir_op_fmax;
case GLSLstd450FMax: return nir_op_fmax;
case GLSLstd450UMax: return nir_op_umax;
case GLSLstd450SMax: return nir_op_imax;
@@ -537,6 +539,7 @@ handle_glsl450_alu(struct vtn_builder *b, enum GLSLstd450 entrypoint,
return;
case GLSLstd450FClamp:
case GLSLstd450NClamp:
val->ssa->def = build_fclamp(nb, src[0], src[1], src[2]);
return;
case GLSLstd450UClamp: