1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 7de2ceb..68d96fc 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -317,6 +317,7 @@ struct GTY((desc("0"), tag("0"),
      1 in a CONCAT is VAL_EXPR_IS_COPIED in var-tracking.c.
      1 in a VALUE is SP_BASED_VALUE_P in cselib.c.
      1 in a SUBREG generated by LRA for reload insns.
+     1 in a REG if this is a static chain register.
      1 in a CALL for calls instrumented by Pointer Bounds Checker.
      Dumped as "/j" in RTL dumps.  */
   unsigned int jump : 1;
@@ -2271,6 +2272,10 @@ do {								        \
  : (SIGN) == SRP_SIGNED ? SUBREG_PROMOTED_SIGNED_P (RTX)		\
  : SUBREG_PROMOTED_UNSIGNED_P (RTX))
 
+/* True if the REG is the static chain register for some CALL_INSN.  */
+#define STATIC_CHAIN_REG_P(RTX)	\
+  (RTL_FLAG_CHECK1 ("STATIC_CHAIN_REG_P", (RTX), REG)->jump)
+
 /* True if the subreg was generated by LRA for reload insns.  Such
    subregs are valid only during LRA.  */
 #define LRA_SUBREG_P(RTX)	\