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[Qemu-devel] [PATCH 03/25] target-cris: Use clz opcode
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 03/25] target-cris: Use clz opcode |
Date: |
Wed, 16 Nov 2016 20:25:13 +0100 |
Cc: Edgar E. Iglesias <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
target-cris/helper.h | 1 -
target-cris/op_helper.c | 5 -----
target-cris/translate.c | 2 +-
3 files changed, 1 insertion(+), 7 deletions(-)
diff --git a/target-cris/helper.h b/target-cris/helper.h
index ff35956..20d21c4 100644
--- a/target-cris/helper.h
+++ b/target-cris/helper.h
@@ -7,7 +7,6 @@ DEF_HELPER_1(rfn, void, env)
DEF_HELPER_3(movl_sreg_reg, void, env, i32, i32)
DEF_HELPER_3(movl_reg_sreg, void, env, i32, i32)
-DEF_HELPER_FLAGS_1(lz, TCG_CALL_NO_SE, i32, i32)
DEF_HELPER_FLAGS_4(btst, TCG_CALL_NO_SE, i32, env, i32, i32, i32)
DEF_HELPER_FLAGS_4(evaluate_flags_muls, TCG_CALL_NO_SE, i32, env, i32, i32,
i32)
diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c
index 5043039..e92505c 100644
--- a/target-cris/op_helper.c
+++ b/target-cris/op_helper.c
@@ -230,11 +230,6 @@ void helper_rfn(CPUCRISState *env)
env->pregs[PR_CCS] |= M_FLAG_V32;
}
-uint32_t helper_lz(uint32_t t0)
-{
- return clz32(t0);
-}
-
uint32_t helper_btst(CPUCRISState *env, uint32_t t0, uint32_t t1, uint32_t ccs)
{
/* FIXME: clean this up. */
diff --git a/target-cris/translate.c b/target-cris/translate.c
index b910427..0ee05ca 100644
--- a/target-cris/translate.c
+++ b/target-cris/translate.c
@@ -767,7 +767,7 @@ static void cris_alu_op_exec(DisasContext *dc, int op,
t_gen_subx_carry(dc, dst);
break;
case CC_OP_LZ:
- gen_helper_lz(dst, b);
+ tcg_gen_clzi_tl(dst, b, TARGET_LONG_BITS);
break;
case CC_OP_MULS:
tcg_gen_muls2_tl(dst, cpu_PR[PR_MOF], a, b);
--
2.7.4
- [Qemu-devel] [PATCH 00/25] tcg: Handle clz, ctz, and clrsb generically, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 02/25] target-alpha: Use the ctz and clz opcodes, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 03/25] target-cris: Use clz opcode,
Richard Henderson <=
- [Qemu-devel] [PATCH 04/25] target-microblaze: Use clz opcode, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 01/25] tcg: Add clz and ctz opcodes, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 05/25] target-mips: Use clz opcode, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 06/25] target-openrisc: Use clz and ctz opcodes, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 07/25] target-ppc: Use clz and ctz opcodes, Richard Henderson, 2016/11/16
- [Qemu-devel] [PATCH 10/25] target-tricore: Use clz opcode, Richard Henderson, 2016/11/16