target-sparc: Cleanup cpu_src[12] allocation
Now that get_temp_tl is used for get_src[12], we don't need to pre-allocate these temporaries. Fallout from this is moving some assignments around cas/casx to avoid uninitialized variable warnings. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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@ -2483,7 +2483,7 @@ static void gen_faligndata(TCGv dst, TCGv gsr, TCGv s1, TCGv s2)
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static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
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{
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unsigned int opc, rs1, rs2, rd;
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TCGv cpu_src1, cpu_src2, cpu_tmp1, cpu_tmp2;
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TCGv cpu_src1, cpu_src2;
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TCGv_i32 cpu_src1_32, cpu_src2_32, cpu_dst_32;
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TCGv_i64 cpu_src1_64, cpu_src2_64, cpu_dst_64;
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target_long simm;
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@ -2496,9 +2496,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
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rd = GET_FIELD(insn, 2, 6);
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cpu_tmp1 = cpu_src1 = tcg_temp_new();
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cpu_tmp2 = cpu_src2 = tcg_temp_new();
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switch (opc) {
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case 0: /* branches/sethi */
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{
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@ -4602,8 +4599,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
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cpu_src1 = get_src1(dc, insn);
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if (xop == 0x3c || xop == 0x3e) { // V9 casa/casxa
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rs2 = GET_FIELD(insn, 27, 31);
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cpu_src2 = gen_load_gpr(dc, rs2);
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tcg_gen_mov_tl(cpu_addr, cpu_src1);
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} else if (IS_IMM) { /* immediate */
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simm = GET_FIELDs(insn, 19, 31);
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@ -5074,9 +5069,13 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
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gen_stf_asi(cpu_addr, insn, 8, DFPREG(rd));
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break;
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case 0x3c: /* V9 casa */
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rs2 = GET_FIELD(insn, 27, 31);
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cpu_src2 = gen_load_gpr(dc, rs2);
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gen_cas_asi(dc, cpu_addr, cpu_src2, insn, rd);
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break;
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case 0x3e: /* V9 casxa */
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rs2 = GET_FIELD(insn, 27, 31);
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cpu_src2 = gen_load_gpr(dc, rs2);
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gen_casx_asi(dc, cpu_addr, cpu_src2, insn, rd);
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break;
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#else
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@ -5089,9 +5088,10 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
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default:
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goto illegal_insn;
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}
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} else
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} else {
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goto illegal_insn;
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}
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}
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break;
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}
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/* default case for non jump instructions */
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@ -5169,8 +5169,6 @@ static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
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goto egress;
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#endif
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egress:
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tcg_temp_free(cpu_tmp1);
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tcg_temp_free(cpu_tmp2);
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if (dc->n_t32 != 0) {
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int i;
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for (i = dc->n_t32 - 1; i >= 0; --i) {
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