Add support for OpCompositeExtract

Bug: b/126475423 Change-Id: Ia74e5c6b253a5d3ac5de51c3667062405989d641 Reviewed-on: https://swiftshader-review.googlesource.com/c/25191Tested-by: Chris Forbes <chrisforbes@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>

Add support for OpCompositeExtract
b12846d1 · Chris Forbes · 1bc1acfe · b12846d1
Commit b12846d1 authored Feb 21, 2019 by Chris Forbes
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SpirvShader.cpp src/Pipeline/SpirvShader.cpp +14 -0

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--- a/src/Pipeline/SpirvShader.cpp
+++ b/src/Pipeline/SpirvShader.cpp
@@ -261,6 +261,7 @@ namespace sw
 			case spv::OpAccessChain:
 			case spv::OpCompositeConstruct:
 			case spv::OpCompositeInsert:
+			case spv::OpCompositeExtract:
 				// Instructions that yield an ssavalue.
 			{
 				TypeID typeId = insn.word(1);
@@ -1011,6 +1012,19 @@ namespace sw
 					dst.emplace(i, srcObjectAccess[i]);
 				break;
 			}
+			case spv::OpCompositeExtract:
+			{
+				auto &type = getType(insn.word(1));
+				auto &dst = routine->createIntermediate(insn.word(2), type.sizeInComponents);
+				auto &compositeObject = getObject(insn.word(3));
+				TypeID compositeTypeId = compositeObject.definition.word(1);
+				auto firstComponent = WalkLiteralAccessChain(compositeTypeId, insn.wordCount() - 4, insn.wordPointer(4));
+
+				GenericValue compositeObjectAccess(this, routine, insn.word(3));
+				for (auto i = 0u; i < type.sizeInComponents; i++)
+					dst.emplace(i, compositeObjectAccess[firstComponent + i]);
+				break;
+			}
 			default:
 				printf("emit: ignoring opcode %d\n", insn.opcode());
 				break;