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| author | Jakub Jelinek <jakub@redhat.com> | 2016-12-02 17:28:41 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-12-02 17:28:41 +0100 |
| commit | 17c69eff82d20174099bad6bbd67dbf5e76c39a5 (patch) | |
| tree | ed759c595afb358f1773a94aa24f381bcbbf4098 /gcc/config | |
| parent | eb61d07edaf05f36151bfe4382777eaa79bce4d9 (diff) | |
| download | gcc-17c69eff82d20174099bad6bbd67dbf5e76c39a5.zip gcc-17c69eff82d20174099bad6bbd67dbf5e76c39a5.tar.gz gcc-17c69eff82d20174099bad6bbd67dbf5e76c39a5.tar.bz2 | |
re PR target/70322 (STV doesn't optimize andn)
PR target/70322
* config/i386/i386.c (dimode_scalar_to_vector_candidate_p): Handle
NOT.
(dimode_scalar_chain::compute_convert_gain): Likewise.
(dimode_scalar_chain::convert_insn): Likewise.
* config/i386/i386.md (*one_cmpldi2_doubleword): New
define_insn_and_split.
(one_cmpl<mode>2): Use SWIM1248x iterator instead of SWIM.
* gcc.target/i386/pr70322-1.c: New test.
* gcc.target/i386/pr70322-2.c: New test.
* gcc.target/i386/pr70322-3.c: New test.
From-SVN: r243195
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.c | 16 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 17 |
2 files changed, 30 insertions, 3 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 5678fa2..0bee09b 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -2826,6 +2826,9 @@ dimode_scalar_to_vector_candidate_p (rtx_insn *insn) return false; break; + case NOT: + break; + case REG: return true; @@ -2848,7 +2851,8 @@ dimode_scalar_to_vector_candidate_p (rtx_insn *insn) if ((GET_MODE (XEXP (src, 0)) != DImode && !CONST_INT_P (XEXP (src, 0))) - || (GET_MODE (XEXP (src, 1)) != DImode + || (GET_CODE (src) != NOT + && GET_MODE (XEXP (src, 1)) != DImode && !CONST_INT_P (XEXP (src, 1)))) return false; @@ -3415,6 +3419,8 @@ dimode_scalar_chain::compute_convert_gain () if (CONST_INT_P (XEXP (src, 1))) gain -= vector_const_cost (XEXP (src, 1)); } + else if (GET_CODE (src) == NOT) + gain += ix86_cost->add - COSTS_N_INSNS (1); else if (GET_CODE (src) == COMPARE) { /* Assume comparison cost is the same. */ @@ -3770,6 +3776,14 @@ dimode_scalar_chain::convert_insn (rtx_insn *insn) PUT_MODE (src, V2DImode); break; + case NOT: + src = XEXP (src, 0); + convert_op (&src, insn); + subreg = gen_reg_rtx (V2DImode); + emit_insn_before (gen_move_insn (subreg, CONSTM1_RTX (V2DImode)), insn); + src = gen_rtx_XOR (V2DImode, src, subreg); + break; + case MEM: if (!REG_P (dst)) convert_op (&src, insn); diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 583d2bb..da7cb07 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -9312,9 +9312,22 @@ ;; One complement instructions +(define_insn_and_split "*one_cmpldi2_doubleword" + [(set (match_operand:DI 0 "nonimmediate_operand" "=rm") + (not:DI (match_operand:DI 1 "nonimmediate_operand" "0")))] + "!TARGET_64BIT && TARGET_STV && TARGET_SSE2 + && ix86_unary_operator_ok (NOT, DImode, operands)" + "#" + "&& reload_completed" + [(set (match_dup 0) + (not:SI (match_dup 1))) + (set (match_dup 2) + (not:SI (match_dup 3)))] + "split_double_mode (DImode, &operands[0], 2, &operands[0], &operands[2]);") + (define_expand "one_cmpl<mode>2" - [(set (match_operand:SWIM 0 "nonimmediate_operand") - (not:SWIM (match_operand:SWIM 1 "nonimmediate_operand")))] + [(set (match_operand:SWIM1248x 0 "nonimmediate_operand") + (not:SWIM1248x (match_operand:SWIM1248x 1 "nonimmediate_operand")))] "" "ix86_expand_unary_operator (NOT, <MODE>mode, operands); DONE;") |