[PATCH] D30216: GlobalISel: Translate ConstantDataVector

[Volkan Keles via Phabricator via llvm-commits]

volkan created this revision.
Herald added subscribers: kristof.beyls, rovka, dberris.
Herald added a reviewer: javed.absar.

https://reviews.llvm.org/D30216

Files:
  lib/CodeGen/GlobalISel/IRTranslator.cpp
  test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll


Index: test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
===================================================================
--- test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
+++ test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
@@ -1189,3 +1189,13 @@
 
   ret void
 }
+
+define <2 x i32> @test_constant_datavector() {
+; CHECK-LABEL: name: test_constant_datavector
+; CHECK: [[ONE:%[0-9]+]](s32) = G_CONSTANT i32 1
+; CHECK: [[TWO:%[0-9]+]](s32) = G_CONSTANT i32 2
+; CHECK: [[RES:%[0-9]+]](<2 x s32>) = G_SEQUENCE [[ONE]](s32), 0, [[TWO]](s32), 32
+; CHECK: %d0 = COPY [[RES]](<2 x s32>)
+entry:
+	ret <2 x i32> <i32 1, i32 2>
+}
Index: lib/CodeGen/GlobalISel/IRTranslator.cpp
===================================================================
--- lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -979,7 +979,16 @@
     EntryBuilder.buildConstant(Reg, 0);
   else if (auto GV = dyn_cast<GlobalValue>(&C))
     EntryBuilder.buildGlobalValue(Reg, GV);
-  else if (auto CE = dyn_cast<ConstantExpr>(&C)) {
+  else if (auto CV = dyn_cast<ConstantDataVector>(&C)) {
+    std::vector<unsigned> Ops;
+    std::vector<uint64_t> Indices;
+    for (unsigned i = 0; i < CV->getNumElements(); ++i) {
+      Constant &Elt = *CV->getElementAsConstant(i);
+      Ops.push_back(getOrCreateVReg(Elt));
+      Indices.push_back(i * (CV->getElementByteSize() * 8));
+    }
+    EntryBuilder.buildSequence(Reg, Ops, Indices);
+  } else if (auto CE = dyn_cast<ConstantExpr>(&C)) {
     switch(CE->getOpcode()) {
 #define HANDLE_INST(NUM, OPCODE, CLASS)                         \
       case Instruction::OPCODE: return translate##OPCODE(*CE, EntryBuilder);


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