From 083fd6ec2a15db60edbcc55e86a7c6cc686e862f Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 28 Dec 2015 20:40:10 -0800
Subject: [PATCH] nir/spirv/glsl450: Implement Clamp/SClamp/UClamp.

---
 src/glsl/nir/spirv/vtn_glsl450.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/glsl/nir/spirv/vtn_glsl450.c b/src/glsl/nir/spirv/vtn_glsl450.c
index ecd24c4a3d9..2d5faa7d574 100644
--- a/src/glsl/nir/spirv/vtn_glsl450.c
+++ b/src/glsl/nir/spirv/vtn_glsl450.c
@@ -156,8 +156,15 @@ handle_glsl450_alu(struct vtn_builder *b, enum GLSLstd450 entrypoint,
       return;
 
    case GLSLstd450FClamp:
+      val->ssa->def = build_fclamp(nb, src[0], src[1], src[2]);
+      return;
    case GLSLstd450UClamp:
+      val->ssa->def = nir_umin(nb, nir_umax(nb, src[0], src[1]), src[2]);
+      return;
    case GLSLstd450SClamp:
+      val->ssa->def = nir_imin(nb, nir_imax(nb, src[0], src[1]), src[2]);
+      return;
+
    case GLSLstd450Asin:
    case GLSLstd450Acos:
    case GLSLstd450Atan: