Add initial support for variants
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16635 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Target.td b/lib/Target/Target.td
index 7219395..522a46c 100644
--- a/lib/Target/Target.td
+++ b/lib/Target/Target.td
@@ -188,6 +188,14 @@
// InstFormatName - AsmWriters can specify the name of the format string to
// print instructions with.
string InstFormatName = "AsmString";
+
+ // Variant - AsmWriters can be of multiple different variants. Variants are
+ // used to support targets that need to emit assembly code in ways that are
+ // mostly the same for different targets, but have minor differences in
+ // syntax. If the asmstring contains {|} characters in them, this integer
+ // will specify which alternative to use. For example "{x|y|z}" with Variant
+ // == 1, will expand to "y".
+ int Variant = 0;
}
def DefaultAsmWriter : AsmWriter;
@@ -207,8 +215,8 @@
// InstructionSet - Instruction set description for this target.
InstrInfo InstructionSet;
- // AssemblyWriter - The AsmWriter instance to use for this target.
- AsmWriter AssemblyWriter = DefaultAsmWriter;
+ // AssemblyWriters - The AsmWriter instances available for this target.
+ list<AsmWriter> AssemblyWriters = [DefaultAsmWriter];
}