implement initial support for the silly X constraint. Testcase here: CodeGen/X86/2007-03-24-InlineAsmXConstraint.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35327 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 7433a79..ee9fa67 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1841,6 +1841,7 @@
case 'i': // Simple Integer or Relocatable Constant
case 'n': // Simple Integer
case 's': // Relocatable Constant
+ case 'X': // Allow ANY value.
case 'I': // Target registers.
case 'J':
case 'K':
@@ -1870,6 +1871,7 @@
case 'i': // Simple Integer or Relocatable Constant
case 'n': // Simple Integer
case 's': // Relocatable Constant
+ case 'X': // Allows any operand.
// These are okay if the operand is either a global variable address or a
// simple immediate value. If we have one of these, map to the TargetXXX
// version so that the value itself doesn't get selected.