From a768e4e99247911f00c5c0267c12d4e207d5f6cc Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 21 Nov 2016 11:13:39 +0100 Subject: tcg: Add opcode for ctpop MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The number of actual invocations of ctpop itself does not warrent an opcode, but it is very helpful for POWER7 to use in generating an expansion for ctz. Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- tcg/optimize.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'tcg/optimize.c') diff --git a/tcg/optimize.c b/tcg/optimize.c index e7ecce478e..adfc56ce62 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -308,6 +308,12 @@ static TCGArg do_constant_folding_2(TCGOpcode op, TCGArg x, TCGArg y) case INDEX_op_ctz_i64: return x ? ctz64(x) : y; + case INDEX_op_ctpop_i32: + return ctpop32(x); + + case INDEX_op_ctpop_i64: + return ctpop64(x); + CASE_OP_32_64(ext8s): return (int8_t)x; @@ -918,6 +924,13 @@ void tcg_optimize(TCGContext *s) mask = temps[args[2]].mask | 63; break; + case INDEX_op_ctpop_i32: + mask = 32 | 31; + break; + case INDEX_op_ctpop_i64: + mask = 64 | 63; + break; + CASE_OP_32_64(setcond): case INDEX_op_setcond2_i32: mask = 1; @@ -1031,6 +1044,7 @@ void tcg_optimize(TCGContext *s) CASE_OP_32_64(ext8u): CASE_OP_32_64(ext16s): CASE_OP_32_64(ext16u): + CASE_OP_32_64(ctpop): case INDEX_op_ext32s_i64: case INDEX_op_ext32u_i64: case INDEX_op_ext_i32_i64: -- cgit v1.2.3