From f1ba94ddd2f8e9159b45ecb79cfa39a38944933a Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Tue, 16 Apr 2002 17:34:44 -0700
Subject: [PATCH] mips.md (can_delay): Split out of existing define_delays.
* config/mips/mips.md (can_delay): Split out of existing define_delays.
(HILO_delay): Set can_delay false.
From-SVN: r52387
---
gcc/ChangeLog | 6 ++++++
gcc/config/mips/mips.md | 32 +++++++++++++++++---------------
2 files changed, 23 insertions(+), 15 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3a185ec3e00b..74a936b630f0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2002-04-16 Richard Henderson <rth@redhat.com>
+
+ PR 6202
+ * config/mips/mips.md (can_delay): Split out of existing define_delays.
+ (HILO_delay): Set can_delay false.
+
2002-04-16 Dale Johannesen <dalej@apple.com>
* config/rs6000/rs6000.c (rs6000_output_function_prologue): Compute
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index fbaf63faf7f1..c90109f82d17 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -135,6 +135,18 @@
(const_string "yes")
(const_string "no")))
+;; Can the instruction be put into a delay slot?
+(define_attr "can_delay" "no,yes"
+ (if_then_else (and (eq_attr "dslot" "no")
+ ; ADJUST_INSN_LENGTH divides length by 2 on mips16,
+ ; so cope with it here.
+ (ior (and (eq (symbol_ref "mips16") (const_int 0))
+ (eq_attr "length" "4"))
+ (and (ne (symbol_ref "mips16") (const_int 0))
+ (eq_attr "length" "2"))))
+ (const_string "yes")
+ (const_string "no")))
+
;; Attribute defining whether or not we can use the branch-likely instructions
(define_attr "branch_likely" "no,yes"
@@ -162,30 +174,19 @@
(define_delay (and (eq_attr "type" "branch")
(eq (symbol_ref "mips16") (const_int 0)))
- [(and (eq_attr "dslot" "no") (eq_attr "length" "4"))
+ [(eq_attr "can_delay" "yes")
(nil)
(and (eq_attr "branch_likely" "yes")
(and (eq_attr "dslot" "no")
(eq_attr "length" "4")))])
(define_delay (eq_attr "type" "jump")
- [(and (eq_attr "dslot" "no")
- ;; ADJUST_INSN_LENGTH divides length by 2 on mips16, so cope
- ;; with it here. It doesn't matter for branches above,
- ;; because mips16 branches don't have delay slots anyway.
- (ior (and (eq (symbol_ref "mips16") (const_int 0))
- (eq_attr "length" "4"))
- (and (ne (symbol_ref "mips16") (const_int 0))
- (eq_attr "length" "2"))))
+ [(eq_attr "can_delay" "yes")
(nil)
(nil)])
(define_delay (and (eq_attr "type" "call") (eq_attr "abicalls" "no"))
- [(and (eq_attr "dslot" "no")
- (ior (and (eq (symbol_ref "mips16") (const_int 0))
- (eq_attr "length" "4"))
- (and (ne (symbol_ref "mips16") (const_int 0))
- (eq_attr "length" "2"))))
+ [(eq_attr "can_delay" "yes")
(nil)
(nil)])
@@ -5823,7 +5824,8 @@ move\\t%0,%z4\\n\\
""
""
[(set_attr "type" "nop")
- (set_attr "mode" "none")])
+ (set_attr "mode" "none")
+ (set_attr "can_delay" "no")])
;; This insn handles moving CCmode values. It's really just a
;; slightly simplified copy of movsi_internal2, with additional cases
--
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