[llvm] r307142 - [GlobalISel][X86] For now don't handle not trivial function arguments lowering.

[Igor Breger via llvm-commits]

Author: ibreger
Date: Wed Jul  5 04:40:35 2017
New Revision: 307142

URL: http://llvm.org/viewvc/llvm-project?rev=307142&view=rev
Log:
[GlobalISel][X86] For now don't handle not trivial function arguments lowering.

Modified:
    llvm/trunk/lib/Target/X86/X86CallLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86CallLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86CallLowering.cpp?rev=307142&r1=307141&r2=307142&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86CallLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86CallLowering.cpp Wed Jul  5 04:40:35 2017
@@ -195,8 +195,18 @@ bool X86CallLowering::lowerFormalArgumen
   SmallVector<ArgInfo, 8> SplitArgs;
   unsigned Idx = 0;
   for (auto &Arg : F.args()) {
+
+    // TODO: handle not simple cases.
+    if (Arg.hasAttribute(Attribute::ByVal) ||
+        Arg.hasAttribute(Attribute::InReg) ||
+        Arg.hasAttribute(Attribute::StructRet) ||
+        Arg.hasAttribute(Attribute::SwiftSelf) ||
+        Arg.hasAttribute(Attribute::SwiftError) ||
+        Arg.hasAttribute(Attribute::Nest))
+      return false;
+
     ArgInfo OrigArg(VRegs[Idx], Arg.getType());
-    setArgFlags(OrigArg, Idx + 1, DL, F);
+    setArgFlags(OrigArg, Idx + AttributeList::FirstArgIndex, DL, F);
     if (!splitToValueTypes(OrigArg, SplitArgs, DL, MRI,
                            [&](ArrayRef<unsigned> Regs) {
                              MIRBuilder.buildMerge(VRegs[Idx], Regs);