target-insns.def (prefetch): New targetm instruction pattern.
gcc/ * target-insns.def (prefetch): New targetm instruction pattern. * tree-ssa-loop-prefetch.c: Include targeth. (tree_ssa_prefetch_arrays): Use prefetch targetm pattern instead of HAVE_*/gen_* interface. * builtins.c (expand_builtin_prefetch): Likewise. * toplev.c (process_options): Likewise. From-SVN: r225424
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@ -1,3 +1,12 @@
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2015-07-05 Richard Sandiford <richard.sandiford@arm.com>
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* target-insns.def (prefetch): New targetm instruction pattern.
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* tree-ssa-loop-prefetch.c: Include targeth.
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(tree_ssa_prefetch_arrays): Use prefetch targetm pattern instead
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of HAVE_*/gen_* interface.
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* builtins.c (expand_builtin_prefetch): Likewise.
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* toplev.c (process_options): Likewise.
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2015-07-05 Richard Sandiford <richard.sandiford@arm.com>
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* target-insns.def (untyped_call, untyped_return): New targetm
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@ -1282,18 +1282,16 @@ expand_builtin_prefetch (tree exp)
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op2 = const0_rtx;
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}
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#ifdef HAVE_prefetch
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if (HAVE_prefetch)
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if (targetm.have_prefetch ())
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{
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struct expand_operand ops[3];
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create_address_operand (&ops[0], op0);
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create_integer_operand (&ops[1], INTVAL (op1));
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create_integer_operand (&ops[2], INTVAL (op2));
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if (maybe_expand_insn (CODE_FOR_prefetch, 3, ops))
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if (maybe_expand_insn (targetm.code_for_prefetch, 3, ops))
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return;
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}
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#endif
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/* Don't do anything with direct references to volatile memory, but
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generate code to handle other side effects. */
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@ -44,6 +44,7 @@ DEF_TARGET_INSN (mem_thread_fence, (rtx x0))
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DEF_TARGET_INSN (memory_barrier, (void))
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DEF_TARGET_INSN (nonlocal_goto, (rtx x0, rtx x1, rtx x2, rtx x3))
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DEF_TARGET_INSN (nonlocal_goto_receiver, (void))
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DEF_TARGET_INSN (prefetch, (rtx x0, rtx x1, rtx x2))
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DEF_TARGET_INSN (prologue, (void))
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DEF_TARGET_INSN (return, (void))
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DEF_TARGET_INSN (sibcall_epilogue, (void))
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@ -1571,19 +1571,16 @@ process_options (void)
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}
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}
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#ifndef HAVE_prefetch
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if (flag_prefetch_loop_arrays > 0)
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if (flag_prefetch_loop_arrays > 0 && !targetm.code_for_prefetch)
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{
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warning (0, "-fprefetch-loop-arrays not supported for this target");
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flag_prefetch_loop_arrays = 0;
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}
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#else
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if (flag_prefetch_loop_arrays > 0 && !HAVE_prefetch)
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else if (flag_prefetch_loop_arrays > 0 && !targetm.have_prefetch ())
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{
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warning (0, "-fprefetch-loop-arrays not supported for this target (try -march switches)");
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flag_prefetch_loop_arrays = 0;
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}
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#endif
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/* This combination of options isn't handled for i386 targets and doesn't
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make much sense anyway, so don't allow it. */
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@ -57,6 +57,7 @@ along with GCC; see the file COPYING3. If not see
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#include "langhooks.h"
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#include "tree-inline.h"
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#include "tree-data-ref.h"
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#include "target.h"
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/* FIXME: Needed for optabs, but this should all be moved to a TBD interface
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@ -216,10 +217,6 @@ along with GCC; see the file COPYING3. If not see
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#define ACCEPTABLE_MISS_RATE 50
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#endif
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#ifndef HAVE_prefetch
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#define HAVE_prefetch 0
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#endif
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#define L1_CACHE_SIZE_BYTES ((unsigned) (L1_CACHE_SIZE * 1024))
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#define L2_CACHE_SIZE_BYTES ((unsigned) (L2_CACHE_SIZE * 1024))
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@ -1954,11 +1951,11 @@ tree_ssa_prefetch_arrays (void)
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bool unrolled = false;
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int todo_flags = 0;
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if (!HAVE_prefetch
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if (!targetm.have_prefetch ()
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/* It is possible to ask compiler for say -mtune=i486 -march=pentium4.
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-mtune=i486 causes us having PREFETCH_BLOCK 0, since this is part
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of processor costs and i486 does not have prefetch, but
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-march=pentium4 causes HAVE_prefetch to be true. Ugh. */
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-march=pentium4 causes targetm.have_prefetch to be true. Ugh. */
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|| PREFETCH_BLOCK == 0)
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return 0;
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