From 2633a2d015b0ba57432f1e11970cc080eb5119a3 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Fri, 9 Apr 2010 20:52:48 +0200 Subject: [PATCH] tcg/arm: remove useless register tests in qemu_ld/st addr_reg, data_reg and data_reg2 can't be register r0 or r1 du to the constraints. Don't check if they equals these registers. Signed-off-by: Aurelien Jarno --- tcg/arm/tcg-target.c | 30 ++++++++++-------------------- 1 file changed, 10 insertions(+), 20 deletions(-) diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 361cebbeee..58e83c5e5a 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -1048,10 +1048,8 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) # if TARGET_LONG_BITS == 32 tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R1, 0, mem_index); # else - if (addr_reg2 != TCG_REG_R1) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0)); - } + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0)); tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index); # endif tcg_out_bl(s, COND_AL, (tcg_target_long) qemu_ld_helpers[s_bits] - @@ -1257,10 +1255,8 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) tcg_out_b(s, COND_EQ, 8); /* TODO: move this code to where the constants pool will be */ - if (addr_reg != TCG_REG_R0) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - TCG_REG_R0, 0, addr_reg, SHIFT_IMM_LSL(0)); - } + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + TCG_REG_R0, 0, addr_reg, SHIFT_IMM_LSL(0)); # if TARGET_LONG_BITS == 32 switch (opc) { case 0: @@ -1272,17 +1268,13 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index); break; case 2: - if (data_reg != TCG_REG_R1) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - TCG_REG_R1, 0, data_reg, SHIFT_IMM_LSL(0)); - } + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + TCG_REG_R1, 0, data_reg, SHIFT_IMM_LSL(0)); tcg_out_dat_imm(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, mem_index); break; case 3: - if (data_reg != TCG_REG_R1) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - TCG_REG_R1, 0, data_reg, SHIFT_IMM_LSL(0)); - } + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + TCG_REG_R1, 0, data_reg, SHIFT_IMM_LSL(0)); if (data_reg2 != TCG_REG_R2) { tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_R2, 0, data_reg2, SHIFT_IMM_LSL(0)); @@ -1291,10 +1283,8 @@ static inline void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) break; } # else - if (addr_reg2 != TCG_REG_R1) { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0)); - } + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + TCG_REG_R1, 0, addr_reg2, SHIFT_IMM_LSL(0)); switch (opc) { case 0: tcg_out_ext8u(s, COND_AL, TCG_REG_R2, data_reg); -- 2.11.4.GIT