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| author | Dan Nicolaescu <dann@ics.uci.edu> | 2001-12-12 02:22:51 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2001-12-11 18:22:51 -0800 |
| commit | f3bfd09c28cee0b618ada98a97c864c242f46421 (patch) | |
| tree | 8c6adc3de9a3851e96397be7cef2fabcc31872e2 /gcc | |
| parent | e817125dbbc96845ced07f54f93df2d757d0398f (diff) | |
| download | gcc-f3bfd09c28cee0b618ada98a97c864c242f46421.zip gcc-f3bfd09c28cee0b618ada98a97c864c242f46421.tar.gz gcc-f3bfd09c28cee0b618ada98a97c864c242f46421.tar.bz2 | |
* config/sparc/sparc.md (prefetch): New.
From-SVN: r47911
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/sparc/sparc.md | 31 |
2 files changed, 35 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4151ff9..48a09e5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2001-12-11 Dan Nicolaescu <dann@ics.uci.edu> + + * config/sparc/sparc.md (prefetch): New. + 2001-12-11 Aldy Hernandez <aldyh@redhat.com> * output.h (regno_uninitialized): Make argument unsigned. diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md index 516453f..fc3f10b 100644 --- a/gcc/config/sparc/sparc.md +++ b/gcc/config/sparc/sparc.md @@ -9224,6 +9224,37 @@ && short_branch (INSN_UID (insn), INSN_UID (operands[2])) && (USING_SJLJ_EXCEPTIONS || ! can_throw_internal (insn))" "call\\t%a0, %1\\n\\tadd\\t%%o7, (%l2-.-4), %%o7") + +(define_insn "prefetch" + [(prefetch (match_operand:DI 0 "address_operand" "p") + (match_operand:DI 1 "const_int_operand" "n") + (match_operand:DI 2 "const_int_operand" "n"))] + "TARGET_V9" +{ + static const char * const prefetch_instr[2][4] = { + { + "prefetch\\t[%a0], 1", /* no locality: prefetch for one read */ + "prefetch\\t[%a0], 0", /* medium locality: prefetch for several reads */ + "prefetch\\t[%a0], 0", /* medium locality: prefetch for several reads */ + "prefetch\\t[%a0], 4", /* high locality: prefetch page */ + }, + { + "prefetch\\t[%a0], 3", /* no locality: prefetch for one write */ + "prefetch\\t[%a0], 2", /* medium locality: prefetch for several writes */ + "prefetch\\t[%a0], 2", /* medium locality: prefetch for several writes */ + "prefetch\\t[%a0], 4", /* high locality: prefetch page */ + } + }; + int read_or_write = INTVAL (operands[1]); + int locality = INTVAL (operands[2]); + + if (read_or_write != 0 && read_or_write != 1) + abort (); + if (locality < 0 || locality > 3) + abort (); + return prefetch_instr [read_or_write][locality]; +} + [(set_attr "type" "load")]) (define_expand "prologue" [(const_int 1)] |