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target-unicore32: Use clz opcode

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Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-11-16 11:40:39 +01:00
parent 0efa820854
commit 03a733dc62
3 changed files with 3 additions and 16 deletions
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10
target/unicore32/helper.c
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@ -32,16 +32,6 @@ UniCore32CPU *uc32_cpu_init(const char *cpu_model)
return UNICORE32_CPU(cpu_generic_init(TYPE_UNICORE32_CPU, cpu_model));
}
uint32_t HELPER(clo)(uint32_t x)
{
return clo32(x);
}
uint32_t HELPER(clz)(uint32_t x)
{
return clz32(x);
}
#ifndef CONFIG_USER_ONLY
void helper_cp0_set(CPUUniCore32State *env, uint32_t val, uint32_t creg,
uint32_t cop)

3
target/unicore32/helper.h
View File

@ -13,9 +13,6 @@ DEF_HELPER_3(cp0_get, i32, env, i32, i32)
DEF_HELPER_1(cp1_putc, void, i32)
#endif
DEF_HELPER_1(clz, i32, i32)
DEF_HELPER_1(clo, i32, i32)
DEF_HELPER_2(exception, void, env, i32)
DEF_HELPER_3(asr_write, void, env, i32, i32)

6
target/unicore32/translate.c
View File

@ -1479,10 +1479,10 @@ static void do_misc(CPUUniCore32State *env, DisasContext *s, uint32_t insn)
/* clz */
tmp = load_reg(s, UCOP_REG_M);
if (UCOP_SET(26)) {
gen_helper_clo(tmp, tmp);
} else {
gen_helper_clz(tmp, tmp);
/* clo */
tcg_gen_not_i32(tmp, tmp);
}
tcg_gen_clzi_i32(tmp, tmp, 32);
store_reg(s, UCOP_REG_D, tmp);
return;
}