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| author | Richard Henderson <rth@redhat.com> | 2002-04-16 17:34:44 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-04-16 17:34:44 -0700 |
| commit | f1ba94ddd2f8e9159b45ecb79cfa39a38944933a (patch) | |
| tree | ce868453862265527f6d188115974dc902ee8fbe /gcc | |
| parent | 3bb6f0700af0f235ce470d1b36c9db47d034b44e (diff) | |
| download | gcc-f1ba94ddd2f8e9159b45ecb79cfa39a38944933a.zip gcc-f1ba94ddd2f8e9159b45ecb79cfa39a38944933a.tar.gz gcc-f1ba94ddd2f8e9159b45ecb79cfa39a38944933a.tar.bz2 | |
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
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/mips/mips.md | 32 |
2 files changed, 23 insertions, 15 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3a185ec..74a936b 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 fbaf63f..c90109f 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 |