From 372dd1ea184ec7a34f995cf16f155a1d7e68d28e Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 30 Jan 2012 00:51:16 +0000
Subject: Add bitcode reader and writer support for ConstantDataAggregate,
which should be feature complete now. Lets see if it works.
llvm-svn: 149215
---
llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 59 +++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
(limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index c12a95ecfe9..672acd3daec 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1121,6 +1121,65 @@ bool BitcodeReader::ParseConstants() {
V = ConstantArray::get(ATy, Elts);
break;
}
+ case bitc::CST_CODE_DATA: {// DATA: [n x value]
+ if (Record.empty())
+ return Error("Invalid CST_DATA record");
+
+ Type *EltTy = cast<SequentialType>(CurTy)->getElementType();
+ unsigned Size = Record.size();
+
+ if (EltTy->isIntegerTy(8)) {
+ SmallVector<uint8_t, 16> Elts(Record.begin(), Record.end());
+ if (isa<VectorType>(CurTy))
+ V = ConstantDataVector::get(Context, Elts);
+ else
+ V = ConstantDataArray::get(Context, Elts);
+ } else if (EltTy->isIntegerTy(16)) {
+ SmallVector<uint16_t, 16> Elts(Record.begin(), Record.end());
+ if (isa<VectorType>(CurTy))
+ V = ConstantDataVector::get(Context, Elts);
+ else
+ V = ConstantDataArray::get(Context, Elts);
+ } else if (EltTy->isIntegerTy(32)) {
+ SmallVector<uint32_t, 16> Elts(Record.begin(), Record.end());
+ if (isa<VectorType>(CurTy))
+ V = ConstantDataVector::get(Context, Elts);
+ else
+ V = ConstantDataArray::get(Context, Elts);
+ } else if (EltTy->isIntegerTy(64)) {
+ SmallVector<uint64_t, 16> Elts(Record.begin(), Record.end());
+ if (isa<VectorType>(CurTy))
+ V = ConstantDataVector::get(Context, Elts);
+ else
+ V = ConstantDataArray::get(Context, Elts);
+ } else if (EltTy->isFloatTy()) {
+ SmallVector<float, 16> Elts;
+ for (unsigned i = 0; i != Size; ++i) {
+ union { uint32_t I; float F; };
+ I = Record[i];
+ Elts.push_back(F);
+ }
+ if (isa<VectorType>(CurTy))
+ V = ConstantDataVector::get(Context, Elts);
+ else
+ V = ConstantDataArray::get(Context, Elts);
+ } else if (EltTy->isDoubleTy()) {
+ SmallVector<double, 16> Elts;
+ for (unsigned i = 0; i != Size; ++i) {
+ union { uint64_t I; double F; };
+ I = Record[i];
+ Elts.push_back(F);
+ }
+ if (isa<VectorType>(CurTy))
+ V = ConstantDataVector::get(Context, Elts);
+ else
+ V = ConstantDataArray::get(Context, Elts);
+ } else {
+ return Error("Unknown element type in CE_DATA");
+ }
+ break;
+ }
+
case bitc::CST_CODE_CE_BINOP: { // CE_BINOP: [opcode, opval, opval]
if (Record.size() < 3) return Error("Invalid CE_BINOP record");
int Opc = GetDecodedBinaryOpcode(Record[0], CurTy);
--
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