Support vector bitcasts in the AsmPrinter. PR11495.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146001 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 8c69a3a..23bf602 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1642,6 +1642,28 @@
AP.OutStreamer.EmitZeros(Padding, AddrSpace);
}
+static void LowerVectorConstant(const Constant *CV, unsigned AddrSpace,
+ AsmPrinter &AP) {
+ // Look through bitcasts
+ if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV))
+ if (CE->getOpcode() == Instruction::BitCast)
+ CV = CE->getOperand(0);
+
+ if (const ConstantVector *V = dyn_cast<ConstantVector>(CV))
+ return EmitGlobalConstantVector(V, AddrSpace, AP);
+
+ // If we get here, we're stuck; report the problem to the user.
+ // FIXME: Are there any other useful tricks for vectors?
+ {
+ std::string S;
+ raw_string_ostream OS(S);
+ OS << "Unsupported vector expression in static initializer: ";
+ WriteAsOperand(OS, CV, /*PrintType=*/false,
+ !AP.MF ? 0 : AP.MF->getFunction()->getParent());
+ report_fatal_error(OS.str());
+ }
+}
+
static void EmitGlobalConstantStruct(const ConstantStruct *CS,
unsigned AddrSpace, AsmPrinter &AP) {
// Print the fields in successive locations. Pad to align if needed!
@@ -1796,8 +1818,8 @@
return;
}
- if (const ConstantVector *V = dyn_cast<ConstantVector>(CV))
- return EmitGlobalConstantVector(V, AddrSpace, AP);
+ if (CV->getType()->isVectorTy())
+ return LowerVectorConstant(CV, AddrSpace, AP);
// Otherwise, it must be a ConstantExpr. Lower it to an MCExpr, then emit it
// thread the streamer with EmitValue.