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authorRichard Henderson <rth@twiddle.net>2016-11-16 10:23:30 +0100
committerRichard Henderson <rth@twiddle.net>2017-01-10 08:06:11 -0800
commit881549da4b58ed1b703823a435b9028c4a8b41d3 (patch)
treede24ce9898c529df824835b416660fbed2a04d3c /target/alpha
parent8d8dd793da13ab052890150fbcae9f506d0077f3 (diff)
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target-alpha: Use the ctz and clz opcodes
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target/alpha')
-rw-r--r--target/alpha/helper.h2
-rw-r--r--target/alpha/int_helper.c10
-rw-r--r--target/alpha/translate.c4
3 files changed, 2 insertions, 14 deletions
diff --git a/target/alpha/helper.h b/target/alpha/helper.h
index 004221d..eed3906 100644
--- a/target/alpha/helper.h
+++ b/target/alpha/helper.h
@@ -4,8 +4,6 @@ DEF_HELPER_FLAGS_1(load_pcc, TCG_CALL_NO_RWG_SE, i64, env)
DEF_HELPER_FLAGS_3(check_overflow, TCG_CALL_NO_WG, void, env, i64, i64)
DEF_HELPER_FLAGS_1(ctpop, TCG_CALL_NO_RWG_SE, i64, i64)
-DEF_HELPER_FLAGS_1(ctlz, TCG_CALL_NO_RWG_SE, i64, i64)
-DEF_HELPER_FLAGS_1(cttz, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_2(zap, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(zapnot, TCG_CALL_NO_RWG_SE, i64, i64, i64)
diff --git a/target/alpha/int_helper.c b/target/alpha/int_helper.c
index 19bebfe..3c303bd 100644
--- a/target/alpha/int_helper.c
+++ b/target/alpha/int_helper.c
@@ -29,16 +29,6 @@ uint64_t helper_ctpop(uint64_t arg)
return ctpop64(arg);
}
-uint64_t helper_ctlz(uint64_t arg)
-{
- return clz64(arg);
-}
-
-uint64_t helper_cttz(uint64_t arg)
-{
- return ctz64(arg);
-}
-
uint64_t helper_zapnot(uint64_t val, uint64_t mskb)
{
uint64_t mask;
diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 5ac2277..6e2e563 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -2555,14 +2555,14 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
REQUIRE_REG_31(ra);
REQUIRE_NO_LIT;
- gen_helper_ctlz(vc, vb);
+ tcg_gen_clzi_i64(vc, vb, 64);
break;
case 0x33:
/* CTTZ */
REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
REQUIRE_REG_31(ra);
REQUIRE_NO_LIT;
- gen_helper_cttz(vc, vb);
+ tcg_gen_ctzi_i64(vc, vb, 64);
break;
case 0x34:
/* UNPKBW */