From e84a95efdd5bd8bffb3654c5f7a2d60b34b4bb88 Mon Sep 17 00:00:00 2001
From: dje <dje@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 11 Aug 2004 19:18:14 +0000
Subject: [PATCH] * config/rs6000/rs6000.h (MAX_FIXED_MODE_SIZE):
Define.
* config/rs6000/rs6000.md (mfcr rlwinm patterns): Set length to 8.
(mfcr rlwinm rlwinm patterns): Set length to 12.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85808 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 7 +++++++
gcc/config/rs6000/rs6000.h | 6 ++++++
gcc/config/rs6000/rs6000.md | 18 +++++++++---------
3 files changed, 22 insertions(+), 9 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a67eae2769a0..3509bba6af5d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2004-08-11 David Edelsohn <edelsohn@gnu.org>
+
+ * config/rs6000/rs6000.h (MAX_FIXED_MODE_SIZE): Define.
+
+ * config/rs6000/rs6000.md (mfcr rlwinm patterns): Set length to 8.
+ (mfcr rlwinm rlwinm patterns): Set length to 12.
+
2004-08-11 Andrew MacLeod <amacleod@redhat.com>
* tree-flow-inline.h (get_def_ops, get_use_ops, get_v_may_def_ops,
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index f69b10cc3c01..4b7db3a390ee 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -2103,6 +2103,12 @@ do { \
/* #define FIXUNS_TRUNC_LIKE_FIX_TRUNC */
+/* An integer expression for the size in bits of the largest integer machine
+ mode that should actually be used. */
+
+/* Allow pairs of registers to be used, which is the intent of the default. */
+#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (TARGET_POWERPC64 ? TImode : DImode)
+
/* Max number of bytes we can move from memory to memory
in one reasonably fast instruction. */
#define MOVE_MAX (! TARGET_POWERPC64 ? 4 : 8)
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index aef44d53e4a8..8cd7063b8cf8 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -11390,7 +11390,7 @@
(const_string "mfcrf")
]
(const_string "mfcr")))
- (set_attr "length" "12")])
+ (set_attr "length" "8")])
;; Same as above, but get the GT bit.
(define_insn "move_from_CR_eq_bit"
@@ -11399,7 +11399,7 @@
"TARGET_E500"
"mfcr %0\;{rlinm|rlwinm} %0,%0,%D1,1"
[(set_attr "type" "mfcr")
- (set_attr "length" "12")])
+ (set_attr "length" "8")])
;; Same as above, but get the OV/ORDERED bit.
(define_insn "move_from_CR_ov_bit"
@@ -11408,7 +11408,7 @@
"TARGET_ISEL"
"mfcr %0\;{rlinm|rlwinm} %0,%0,%t1,1"
[(set_attr "type" "mfcr")
- (set_attr "length" "12")])
+ (set_attr "length" "8")])
(define_insn ""
[(set (match_operand:DI 0 "gpc_reg_operand" "=r")
@@ -11422,7 +11422,7 @@
(const_string "mfcrf")
]
(const_string "mfcr")))
- (set_attr "length" "12")])
+ (set_attr "length" "8")])
(define_insn ""
[(set (match_operand:CC 0 "cc_reg_operand" "=x,?y")
@@ -11437,7 +11437,7 @@
mfcr %3%Q2\;{rlinm.|rlwinm.} %3,%3,%J1,1
#"
[(set_attr "type" "delayed_compare")
- (set_attr "length" "12,16")])
+ (set_attr "length" "8,16")])
(define_split
[(set (match_operand:CC 0 "cc_reg_not_cr0_operand" "")
@@ -11483,7 +11483,7 @@
(const_string "mfcrf")
]
(const_string "mfcr")))
- (set_attr "length" "12")])
+ (set_attr "length" "8")])
(define_insn ""
[(set (match_operand:CC 0 "cc_reg_operand" "=x,?y")
@@ -11518,7 +11518,7 @@
return \"mfcr %4%Q2\;{rlinm.|rlwinm.} %4,%4,%5,%6,%6\";
}"
[(set_attr "type" "delayed_compare")
- (set_attr "length" "12,16")])
+ (set_attr "length" "8,16")])
(define_split
[(set (match_operand:CC 0 "cc_reg_not_cr0_operand" "")
@@ -11555,7 +11555,7 @@
"REGNO (operands[2]) != REGNO (operands[5])"
"mfcr %3\;{rlinm|rlwinm} %0,%3,%J1,1\;{rlinm|rlwinm} %3,%3,%J4,1"
[(set_attr "type" "mfcr")
- (set_attr "length" "20")])
+ (set_attr "length" "12")])
(define_peephole
[(set (match_operand:DI 0 "gpc_reg_operand" "=r")
@@ -11569,7 +11569,7 @@
"TARGET_POWERPC64 && REGNO (operands[2]) != REGNO (operands[5])"
"mfcr %3\;{rlinm|rlwinm} %0,%3,%J1,1\;{rlinm|rlwinm} %3,%3,%J4,1"
[(set_attr "type" "mfcr")
- (set_attr "length" "20")])
+ (set_attr "length" "12")])
;; There are some scc insns that can be done directly, without a compare.
;; These are faster because they don't involve the communications between
--
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