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target-mips: remove useless sign extension 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2010-02-10 18:19:36 +01:00
parent 153ceefb4a
commit 6462bfcded
1 changed files with 0 additions and 2 deletions
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2
target-mips/translate.c
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@ -1455,7 +1455,6 @@ static void gen_shift_imm(CPUState *env, DisasContext *ctx, uint32_t opc,
opn = "sll";
break;
case OPC_SRA:
tcg_gen_ext32s_tl(t0, t0);
tcg_gen_sari_tl(cpu_gpr[rt], t0, uimm);
opn = "sra";
break;
@ -1855,7 +1854,6 @@ static void gen_shift (CPUState *env, DisasContext *ctx, uint32_t opc,
opn = "sllv";
break;
case OPC_SRAV:
tcg_gen_ext32s_tl(t1, t1);
tcg_gen_andi_tl(t0, t0, 0x1f);
tcg_gen_sar_tl(cpu_gpr[rd], t1, t0);
opn = "srav";