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| author | Walter Lee <walt@tilera.com> | 2012-08-27 18:16:34 +0000 |
|---|---|---|
| committer | Walter Lee <walt@gcc.gnu.org> | 2012-08-27 18:16:34 +0000 |
| commit | 848c312caba3183723c79f0bb89473996da33a17 (patch) | |
| tree | 0f7102692fdfb24692a2b3c88cd6152a086bd203 /gcc | |
| parent | 9b0370aa4bb78d7fb8ba2b3a4ca0487647fbb9f1 (diff) | |
| download | gcc-848c312caba3183723c79f0bb89473996da33a17.zip gcc-848c312caba3183723c79f0bb89473996da33a17.tar.gz gcc-848c312caba3183723c79f0bb89473996da33a17.tar.bz2 | |
Stop trying to represent the bfins instruction with the insv pattern,
because it causes an extra copy when bfins reuses one of its inputs.
* config/tilegx/tilegx.md (*bfins): Rename to insn_bfins.
(insn_bfins): Delete.
From-SVN: r190724
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/tilegx/tilegx.md | 32 |
2 files changed, 6 insertions, 31 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bf81a33..717df46 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,9 @@ 2012-08-27 Walter Lee <walt@tilera.com> + + * config/tilegx/tilegx.md (*bfins): Rename to insn_bfins. + (insn_bfins): Delete. + +2012-08-27 Walter Lee <walt@tilera.com> * config/tilegx/sync.md (atomic_compare_and_swap_bare<mode>, atomic_exchange_bare<mode>, diff --git a/gcc/config/tilegx/tilegx.md b/gcc/config/tilegx/tilegx.md index 1fb6cdc..7a68a2d 100644 --- a/gcc/config/tilegx/tilegx.md +++ b/gcc/config/tilegx/tilegx.md @@ -2627,7 +2627,7 @@ "bfextu\t%0, %r1, %2, %3" [(set_attr "type" "X0")]) -(define_insn "*bfins" +(define_insn "insn_bfins" [(set (match_operand:DI 0 "register_operand" "=r") (unspec:DI [(match_operand:DI 1 "reg_or_0_operand" "0") (match_operand:DI 2 "reg_or_0_operand" "rO") @@ -2638,36 +2638,6 @@ "bfins\t%0, %r2, %3, %4" [(set_attr "type" "X0")]) -(define_expand "insn_bfins" - [(set (match_operand:DI 0 "register_operand" "") - (unspec:DI [(match_operand:DI 1 "reg_or_0_operand" "") - (match_operand:DI 2 "reg_or_0_operand" "") - (match_operand:DI 3 "u6bit_cint_operand" "") - (match_operand:DI 4 "u6bit_cint_operand" "")] - UNSPEC_INSN_BFINS))] - "INTVAL (operands[3]) != 64" -{ - HOST_WIDE_INT first = INTVAL (operands[3]); - HOST_WIDE_INT last = INTVAL (operands[4]); - - if (last >= first) - { - /* This is not a wacky wraparound case, so we can express this - as a standard insv. */ - if (operands[0] != operands[1]) - { - operands[2] = make_safe_from (operands[2], operands[0]); - emit_move_insn (operands[0], operands[1]); - } - - emit_insn (gen_insv (operands[0], - GEN_INT (last - first + 1), operands[3], - operands[2])); - - DONE; - } -}) - (define_insn "insn_cmpexch<four_if_si>" [(set (match_operand:I48MODE 0 "register_operand" "=r") (mem:I48MODE (match_operand 1 "pointer_operand" "rO"))) |