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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-09-12 13:27:55 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-09-12 13:27:55 +0000 |
| commit | e0bd6c9f0aa67d88bbb20019362a4572fc5fac3c (patch) | |
| tree | 3ca0e90f453bcc3361eb758707d8da86a656477f /gcc/expmed.c | |
| parent | 41defab318e4b5d8b87ba2b3512b02cb49c748a9 (diff) | |
| download | gcc-e0bd6c9f0aa67d88bbb20019362a4572fc5fac3c.tar.gz | |
Turn SLOW_UNALIGNED_ACCESS into a target hook
2017-09-12 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* defaults.h (SLOW_UNALIGNED_ACCESS): Delete.
* target.def (slow_unaligned_access): New hook.
* targhooks.h (default_slow_unaligned_access): Declare.
* targhooks.c (default_slow_unaligned_access): New function.
* doc/tm.texi.in (SLOW_UNALIGNED_ACCESS): Replace with...
(TARGET_SLOW_UNALIGNED_ACCESS): ...this.
* doc/tm.texi: Regenerate.
* config/alpha/alpha.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/arm/arm.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/i386/i386.h (SLOW_UNALIGNED_ACCESS): Delete commented-out
definition.
* config/powerpcspe/powerpcspe.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/powerpcspe/powerpcspe.c (TARGET_SLOW_UNALIGNED_ACCESS):
Redefine.
(rs6000_slow_unaligned_access): New function.
(rs6000_emit_move): Use it instead of SLOW_UNALIGNED_ACCESS.
(expand_block_compare): Likewise.
(expand_strn_compare): Likewise.
(rs6000_rtx_costs): Likewise.
* config/riscv/riscv.h (SLOW_UNALIGNED_ACCESS): Delete.
(riscv_slow_unaligned_access): Likewise.
* config/riscv/riscv.c (riscv_slow_unaligned_access): Rename to...
(riscv_slow_unaligned_access_p): ...this and make static.
(riscv_option_override): Update accordingly.
(riscv_slow_unaligned_access): New function.
(TARGET_SLOW_UNALIGNED_ACCESS): Redefine.
* config/rs6000/rs6000.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/rs6000/rs6000.c (TARGET_SLOW_UNALIGNED_ACCESS): Redefine.
(rs6000_slow_unaligned_access): New function.
(rs6000_emit_move): Use it instead of SLOW_UNALIGNED_ACCESS.
(rs6000_rtx_costs): Likewise.
* config/rs6000/rs6000-string.c (expand_block_compare)
(expand_strn_compare): Use targetm.slow_unaligned_access instead
of SLOW_UNALIGNED_ACCESS.
* config/tilegx/tilegx.h (SLOW_UNALIGNED_ACCESS): Delete.
* config/tilepro/tilepro.h (SLOW_UNALIGNED_ACCESS): Delete.
* calls.c (expand_call): Use targetm.slow_unaligned_access instead
of SLOW_UNALIGNED_ACCESS.
* expmed.c (simple_mem_bitfield_p): Likewise.
* expr.c (alignment_for_piecewise_move): Likewise.
(emit_group_load_1): Likewise.
(emit_group_store): Likewise.
(copy_blkmode_from_reg): Likewise.
(emit_push_insn): Likewise.
(expand_assignment): Likewise.
(store_field): Likewise.
(expand_expr_real_1): Likewise.
* gimple-fold.c (gimple_fold_builtin_memory_op): Likewise.
* lra-constraints.c (simplify_operand_subreg): Likewise.
* stor-layout.c (bit_field_mode_iterator::next_mode): Likewise.
* gimple-ssa-store-merging.c: Likewise in block comment at start
of file.
* tree-ssa-strlen.c: Include target.h.
(handle_builtin_memcmp): Use targetm.slow_unaligned_access instead
of SLOW_UNALIGNED_ACCESS.
* system.h (SLOW_UNALIGNED_ACCESS): Poison.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r252009
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index ca48c60683d..c61a8db43e1 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -569,7 +569,7 @@ simple_mem_bitfield_p (rtx op0, unsigned HOST_WIDE_INT bitsize, return (MEM_P (op0) && bitnum % BITS_PER_UNIT == 0 && bitsize == GET_MODE_BITSIZE (mode) - && (!SLOW_UNALIGNED_ACCESS (mode, MEM_ALIGN (op0)) + && (!targetm.slow_unaligned_access (mode, MEM_ALIGN (op0)) || (bitnum % GET_MODE_ALIGNMENT (mode) == 0 && MEM_ALIGN (op0) >= GET_MODE_ALIGNMENT (mode)))); } |