Introduce a new node for holding call argument

flags.  This is needed by the new legalize types
infrastructure which wants to expand the 64 bit
constants previously used to hold the flags on
32 bit machines.  There are two functional changes:
(1) in LowerArguments, if a parameter has the zext
attribute set then that is marked in the flags;
before it was being ignored; (2) PPC had some bogus
code for handling two word arguments when using the
ELF 32 ABI, which was hard to convert because of
the bogusness.  As suggested by the original author
(Nicolas Geoffray), I've disabled it for the moment.
Tested with "make check" and the Ada ACATS testsuite.

llvm-svn: 48640

1 files changed, 8 insertions, 6 deletions

diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 0326ecf43e4..421a03fca00 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -367,13 +367,12 @@ static void
 HowToPassArgument(MVT::ValueType ObjectVT, unsigned NumGPRs,
                   unsigned StackOffset, unsigned &NeededGPRs,
                   unsigned &NeededStackSize, unsigned &GPRPad,
-                  unsigned &StackPad, ISD::ParamFlags::ParamFlagsTy Flags) {
+                  unsigned &StackPad, ISD::ArgFlagsTy Flags) {
   NeededStackSize = 0;
   NeededGPRs = 0;
   StackPad = 0;
   GPRPad = 0;
-  unsigned align = ((Flags & ISD::ParamFlags::OrigAlignment) 
-                        >> ISD::ParamFlags::OrigAlignmentOffs);
+  unsigned align = Flags.getOrigAlign();
   GPRPad = NumGPRs % ((align + 3)/4);
   StackPad = StackOffset % align;
   unsigned firstGPR = NumGPRs + GPRPad;
@@ -422,7 +421,8 @@ SDOperand ARMTargetLowering::LowerCALL(SDOperand Op, SelectionDAG &DAG) {
     unsigned StackPad;
     unsigned GPRPad;
     MVT::ValueType ObjectVT = Op.getOperand(5+2*i).getValueType();
-    ISD::ParamFlags::ParamFlagsTy Flags = Op.getConstantOperandVal(5+2*i+1);
+    ISD::ArgFlagsTy Flags =
+      cast<ARG_FLAGSSDNode>(Op.getOperand(5+2*i+1))->getArgFlags();
     HowToPassArgument(ObjectVT, NumGPRs, NumBytes, ObjGPRs, ObjSize,
                       GPRPad, StackPad, Flags);
     NumBytes += ObjSize + StackPad;
@@ -445,7 +445,8 @@ SDOperand ARMTargetLowering::LowerCALL(SDOperand Op, SelectionDAG &DAG) {
   std::vector<SDOperand> MemOpChains;
   for (unsigned i = 0; i != NumOps; ++i) {
     SDOperand Arg = Op.getOperand(5+2*i);
-    ISD::ParamFlags::ParamFlagsTy Flags = Op.getConstantOperandVal(5+2*i+1);
+    ISD::ArgFlagsTy Flags =
+      cast<ARG_FLAGSSDNode>(Op.getOperand(5+2*i+1))->getArgFlags();
     MVT::ValueType ArgVT = Arg.getValueType();
 
     unsigned ObjSize;
@@ -924,7 +925,8 @@ static SDOperand LowerFORMAL_ARGUMENT(SDOperand Op, SelectionDAG &DAG,
   unsigned ObjGPRs;
   unsigned GPRPad;
   unsigned StackPad;
-  ISD::ParamFlags::ParamFlagsTy Flags = Op.getConstantOperandVal(ArgNo + 3);
+  ISD::ArgFlagsTy Flags =
+    cast<ARG_FLAGSSDNode>(Op.getOperand(ArgNo + 3))->getArgFlags();
   HowToPassArgument(ObjectVT, NumGPRs, ArgOffset, ObjGPRs,
                     ObjSize, GPRPad, StackPad, Flags);
   NumGPRs += GPRPad;