implement support for floating point constants used as inline asm memory operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35033 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 581b402aeae8907417e7728b7672351405d31c03..62ee06e942238a83aa646e9831de3412797cd2fb 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2882,9 +2882,14 @@ void SelectionDAGLowering::visitInlineAsm(CallInst &I) {
       } else if (CTy == TargetLowering::C_Memory) {
         // Memory input.
         
-        // Check that the operand isn't a float.
+        // If the operand is a float, spill to a constant pool entry to get its
+        // address.
+        if (ConstantFP *Val = dyn_cast<ConstantFP>(I.getOperand(OpNum-1)))
+          InOperandVal = DAG.getConstantPool(Val, TLI.getPointerTy());
+        
         if (!MVT::isInteger(InOperandVal.getValueType())) {
-          cerr << "Match failed, can't handle floats yet!\n";
+          cerr << "Match failed, cannot handle this yet!\n";
+          InOperandVal.Val->dump();
           exit(1);
         }