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-rw-r--r--lib/Target/X86/X86RegisterInfo.def4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.def b/lib/Target/X86/X86RegisterInfo.def
index 8496aef939..f92f3eff4b 100644
--- a/lib/Target/X86/X86RegisterInfo.def
+++ b/lib/Target/X86/X86RegisterInfo.def
@@ -27,13 +27,15 @@
R(ENUM, NAME, FLAGS, TSFLAGS, A1, A2, A3)
#endif
-// Arguments passed into the R macro
+// Arguments passed into the R macros
// #1: Enum Name - This ends up being a symbol in the X86 namespace
// #2: Register name - The name of the register as used by the gnu assembler
// #3: Register Flags - A bitfield of flags or'd together from the
// MRegisterInfo.h file.
// #4: Target Specific Flags - Another bitfield containing X86 specific flags
// as neccesary.
+//
+// #5,6,7: Registers aliased to this register, or 0 if none.
// The first register must always be a 'noop' register for all backends. This