[ARM/AArch64][2/2] Crypto intrinsics tuning for Cortex-A53 - pipeline description

[gcc.git] / gcc / ipa-prop.h

diff --git a/gcc/ipa-prop.h b/gcc/ipa-prop.h
index 299627b1394440db67d5d001d57910023e8107f0..8fdd92c14ef789b11b0048578d1af53559d2e8d1 100644 (file)
--- a/gcc/ipa-prop.h
+++ b/gcc/ipa-prop.h
@@ -130,7 +130,9 @@ struct GTY(()) ipa_ancestor_jf_data
 {
   /* Offset of the field representing the ancestor.  */
   HOST_WIDE_INT offset;
-  /* Type of the result.  */
+  /* Type of the result.
+     When TYPE_PRESERVED is false, TYPE is NULL, since it is only
+     relevant for the devirtualization machinery.  */
   tree type;
   /* Number of the caller's formal parameter being passed.  */
   int formal_id;