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-rw-r--r--gcc/function.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/function.h b/gcc/function.h
index 1c6337c..3dbd6fd 100644
--- a/gcc/function.h
+++ b/gcc/function.h
@@ -105,7 +105,10 @@ struct emit_status GTY(())
tree * GTY ((length ("%h.regno_pointer_align_length"))) regno_decl;
/* Indexed by pseudo register number, gives the rtx for that pseudo.
- Allocated in parallel with regno_pointer_align. */
+ Allocated in parallel with regno_pointer_align.
+
+ Note MEM expressions can appear in this array due to the actions
+ of put_var_into_stack. */
rtx * GTY ((length ("%h.regno_pointer_align_length"))) x_regno_reg_rtx;
};