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| author | Uros Bizjak <uros@gcc.gnu.org> | 2016-12-04 15:38:05 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2016-12-04 15:38:05 +0100 |
| commit | 6b7d84532342ed038a07d850ddacf7a86106a998 (patch) | |
| tree | 7e3242ff6da9239e948b52cac4248cba291a04c3 /gcc/config | |
| parent | c818397a989cda38cf335a411360307dea311c99 (diff) | |
| download | gcc-6b7d84532342ed038a07d850ddacf7a86106a998.zip gcc-6b7d84532342ed038a07d850ddacf7a86106a998.tar.gz gcc-6b7d84532342ed038a07d850ddacf7a86106a998.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 NEG.
(dimode_scalar_chain::compute_convert_gain): Ditto.
(dimode_scalar_chain::convert_insn): Ditto.
testsuite/ChangeLog:
PR target/70322
* gcc.target/i386/pr70322-4.c: New test.
From-SVN: r243228
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 0bee09b..41717da 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -2826,6 +2826,7 @@ dimode_scalar_to_vector_candidate_p (rtx_insn *insn) return false; break; + case NEG: case NOT: break; @@ -2851,7 +2852,8 @@ dimode_scalar_to_vector_candidate_p (rtx_insn *insn) if ((GET_MODE (XEXP (src, 0)) != DImode && !CONST_INT_P (XEXP (src, 0))) - || (GET_CODE (src) != NOT + || (GET_CODE (src) != NEG + && GET_CODE (src) != NOT && GET_MODE (XEXP (src, 1)) != DImode && !CONST_INT_P (XEXP (src, 1)))) return false; @@ -3419,7 +3421,8 @@ 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) + else if (GET_CODE (src) == NEG + || GET_CODE (src) == NOT) gain += ix86_cost->add - COSTS_N_INSNS (1); else if (GET_CODE (src) == COMPARE) { @@ -3776,6 +3779,14 @@ dimode_scalar_chain::convert_insn (rtx_insn *insn) PUT_MODE (src, V2DImode); break; + case NEG: + src = XEXP (src, 0); + convert_op (&src, insn); + subreg = gen_reg_rtx (V2DImode); + emit_insn_before (gen_move_insn (subreg, CONST0_RTX (V2DImode)), insn); + src = gen_rtx_MINUS (V2DImode, subreg, src); + break; + case NOT: src = XEXP (src, 0); convert_op (&src, insn); |