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target-tilegx: Use clz and ctz opcodes 

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-11-16 11:33:48 +01:00
parent 0f9712b117
commit c3aa369e5d
3 changed files with 2 additions and 14 deletions
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10
target/tilegx/helper.c
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@ -55,16 +55,6 @@ void helper_ext01_ics(CPUTLGState *env)
}
}
uint64_t helper_cntlz(uint64_t arg)
{
return clz64(arg);
}
uint64_t helper_cnttz(uint64_t arg)
{
return ctz64(arg);
}
uint64_t helper_pcnt(uint64_t arg)
{
return ctpop64(arg);

2
target/tilegx/helper.h
View File

@ -1,7 +1,5 @@
DEF_HELPER_2(exception, noreturn, env, i32)
DEF_HELPER_1(ext01_ics, void, env)
DEF_HELPER_FLAGS_1(cntlz, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_1(cnttz, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_1(pcnt, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_1(revbits, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_3(shufflebytes, TCG_CALL_NO_RWG_SE, i64, i64, i64, i64)

4
target/tilegx/translate.c
View File

@ -608,12 +608,12 @@ static TileExcp gen_rr_opcode(DisasContext *dc, unsigned opext,
switch (opext) {
case OE_RR_X0(CNTLZ):
case OE_RR_Y0(CNTLZ):
gen_helper_cntlz(tdest, tsrca);
tcg_gen_clzi_tl(tdest, tsrca, TARGET_LONG_BITS);
mnemonic = "cntlz";
break;
case OE_RR_X0(CNTTZ):
case OE_RR_Y0(CNTTZ):
gen_helper_cnttz(tdest, tsrca);
tcg_gen_ctzi_tl(tdest, tsrca, TARGET_LONG_BITS);
mnemonic = "cnttz";
break;
case OE_RR_X0(FSINGLE_PACK1):