* optabs.c (prepare_cmp_insn): Update documentation comment.

From-SVN: r240108

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ad74cc17bfb4225eebbd091423feda2ca8b207c5..a11a273ea8b11794e7ced23bf19ac9246c663635 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2016-09-13  Maciej W. Rozycki  <macro@imgtec.com>
+
+       * optabs.c (prepare_cmp_insn): Update documentation comment.
+
 2016-09-13  Jakub Jelinek  <jakub@redhat.com>
            Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
 

diff --git a/gcc/optabs.c b/gcc/optabs.c
index 87b4f978420dfd2df3d915985509912d85c94569..e41747a630f87ee75890abc3b94fcc6ad9dbd0ef 100644 (file)
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -3716,13 +3716,17 @@ can_compare_p (enum rtx_code code, machine_mode mode,
 }
 
 /* This function is called when we are going to emit a compare instruction that
-   compares the values found in *PX and *PY, using the rtl operator COMPARISON.
+   compares the values found in X and Y, using the rtl operator COMPARISON.
 
-   *PMODE is the mode of the inputs (in case they are const_int).
-   *PUNSIGNEDP nonzero says that the operands are unsigned;
+   If they have mode BLKmode, then SIZE specifies the size of both operands.
+
+   UNSIGNEDP nonzero says that the operands are unsigned;
    this matters if they need to be widened (as given by METHODS).
 
-   If they have mode BLKmode, then SIZE specifies the size of both operands.
+   *PTEST is where the resulting comparison RTX is returned or NULL_RTX
+   if we failed to produce one.
+
+   *PMODE is the mode of the inputs (in case they are const_int).
 
    This function performs all the setup necessary so that the caller only has
    to emit a single comparison insn.  This setup can involve doing a BLKmode