Add support for OpCompositeExtract

Bug: b/126475423
Change-Id: Ia74e5c6b253a5d3ac5de51c3667062405989d641
Reviewed-on: https://swiftshader-review.googlesource.com/c/25191
Tested-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>

diff --git a/src/Pipeline/SpirvShader.cpp b/src/Pipeline/SpirvShader.cpp
index 0d304cf..e44be3e 100644 (file)
--- 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;