From 5839031759546805bcf6dfa81a0e869cd07906f9 Mon Sep 17 00:00:00 2001
From: Rex Xu <rex.xu@amd.com>
Date: Wed, 11 May 2016 16:38:50 +0800
Subject: [PATCH] SPV: Add capability ImageGatherExtended if necessary.

---
 SPIRV/SpvBuilder.cpp              | 4 +++-
 Test/baseResults/spv.400.frag.out | 1 +
 Test/baseResults/spv.420.geom.out | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/SPIRV/SpvBuilder.cpp b/SPIRV/SpvBuilder.cpp
index 53410477..a08e5488 100644
--- a/SPIRV/SpvBuilder.cpp
+++ b/SPIRV/SpvBuilder.cpp
@@ -1464,8 +1464,10 @@ Id Builder::createTextureCall(Decoration precision, Id resultType, bool sparse,
     if (parameters.offset) {
         if (isConstant(parameters.offset))
             mask = (ImageOperandsMask)(mask | ImageOperandsConstOffsetMask);
-        else
+        else {
+            addCapability(CapabilityImageGatherExtended);
             mask = (ImageOperandsMask)(mask | ImageOperandsOffsetMask);
+        }
         texArgs[numArgs++] = parameters.offset;
     }
     if (parameters.offsets) {
diff --git a/Test/baseResults/spv.400.frag.out b/Test/baseResults/spv.400.frag.out
index 651d67de..4af713c4 100644
--- a/Test/baseResults/spv.400.frag.out
+++ b/Test/baseResults/spv.400.frag.out
@@ -11,6 +11,7 @@ Linked fragment stage:
 
                               Capability Shader
                               Capability Float64
+                              Capability ImageGatherExtended
                               Capability ClipDistance
                               Capability SampledRect
                1:             ExtInstImport  "GLSL.std.450"
diff --git a/Test/baseResults/spv.420.geom.out b/Test/baseResults/spv.420.geom.out
index cb535599..78e3aaa2 100644
--- a/Test/baseResults/spv.420.geom.out
+++ b/Test/baseResults/spv.420.geom.out
@@ -11,6 +11,7 @@ Linked geometry stage:
 
                               Capability Geometry
                               Capability GeometryPointSize
+                              Capability ImageGatherExtended
                               Capability GeometryStreams
                               Capability MultiViewport
                1:             ExtInstImport  "GLSL.std.450"