From: Kenneth Graunke <kenneth@whitecape.org>
Date: Wed, 30 Dec 2015 00:21:09 +0000 (-0800)
Subject: nir/spirv: Implement IsInf and IsNan built-ins.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e6cd0c0e1c7bd9575c723165bce393fd66c0266d;p=mesa.git

nir/spirv: Implement IsInf and IsNan built-ins.
---

diff --git a/src/glsl/nir/spirv/spirv_to_nir.c b/src/glsl/nir/spirv/spirv_to_nir.c
index b6e38704887..b6f5dd761bb 100644
--- a/src/glsl/nir/spirv/spirv_to_nir.c
+++ b/src/glsl/nir/spirv/spirv_to_nir.c
@@ -2706,7 +2706,14 @@ vtn_handle_alu(struct vtn_builder *b, SpvOp opcode,
       unreachable("No NIR equivalent");
 
    case SpvOpIsNan:
+      val->ssa->def = nir_fne(&b->nb, src[0], src[0]);
+      return;
+
    case SpvOpIsInf:
+      val->ssa->def = nir_feq(&b->nb, nir_fabs(&b->nb, src[0]),
+                                      nir_imm_float(&b->nb, INFINITY));
+      return;
+
    case SpvOpIsFinite:
    case SpvOpIsNormal:
    case SpvOpSignBitSet: