From d618034b09e41657a5c4b85f35b11fab3b2d0fc9 Mon Sep 17 00:00:00 2001
From: rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 29 Jul 2005 05:57:44 +0000
Subject: * cse.c (exp_equiv_p): Special case CONST_DOUBLE. *
cselib.c (rtx_equal_for_cselib_p): Likewise. * jump.c
(rtx_renumbered_equal_p): Likewise. * loop.c (rtx_equal_for_loop_p):
Tidy and special case PC, CC0, CONST_INT and CONST_DOUBLE.
(rtx_equal_for_prefetch_p): Likewise, plus LABEL_REF. * reload.c
(operands_match_p): Special case CONST_INT and CONST_DOUBLE; check
mode earlier.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102548 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/cselib.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
(limited to 'gcc/cselib.c')
diff --git a/gcc/cselib.c b/gcc/cselib.c
index 5d36be91829..13fc5326dc0 100644
--- a/gcc/cselib.c
+++ b/gcc/cselib.c
@@ -462,9 +462,18 @@ rtx_equal_for_cselib_p (rtx x, rtx y)
if (GET_CODE (x) != GET_CODE (y) || GET_MODE (x) != GET_MODE (y))
return 0;
- /* This won't be handled correctly by the code below. */
- if (GET_CODE (x) == LABEL_REF)
- return XEXP (x, 0) == XEXP (y, 0);
+ /* These won't be handled correctly by the code below. */
+ switch (GET_CODE (x))
+ {
+ case CONST_DOUBLE:
+ return 0;
+
+ case LABEL_REF:
+ return XEXP (x, 0) == XEXP (y, 0);
+
+ default:
+ break;
+ }
code = GET_CODE (x);
fmt = GET_RTX_FORMAT (code);
--
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