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-rw-r--r--gcc/rtl.texi4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/rtl.texi b/gcc/rtl.texi
index 0bd9f0c4669..247807a4000 100644
--- a/gcc/rtl.texi
+++ b/gcc/rtl.texi
@@ -165,6 +165,10 @@ An RTX code for an entire instruction: @code{INSN}, @code{JUMP_INSN}, and
An RTX code for something that matches in insns, such as
@code{MATCH_DUP}. These only occur in machine descriptions.
+@item a
+An RTX code for an auto-increment addressing mode, such as
+@code{POST_INC}.
+
@item x
All other RTX codes. This category includes the remaining codes used
only in machine descriptions (@code{DEFINE_*}, etc.). It also includes