Add comment in find_reloads.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@2187 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/reload.c b/gcc/reload.c
index 69d0f31..aa9a642 100644 (file)
--- a/gcc/reload.c
+++ b/gcc/reload.c
@@ -2286,6 +2286,10 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
                 be a problem accessing the register in the outer mode.  */
              if (GET_CODE (operand) != REG
 #ifdef BYTE_LOADS_ZERO_EXTEND
+                 /* The comment below clearly does not match the code.
+                    What the code below actually does is set force_reload
+                    for a paradoxical subreg of a pseudo.  rms and kenner
+                    can't see the point of doing this.  */
                  /* Nonparadoxical subreg of a pseudoreg.
                     Don't to load the full width if on this machine
                     we expected the fetch to zero-extend.  */