diff options
| author | Richard Henderson <rth@twiddle.net> | 2013-09-05 20:50:54 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2014-04-17 16:56:19 -0400 |
| commit | af9fe310702396333f983f17de68db8511de7b19 (patch) | |
| tree | f958cc701ec865cdd857c4c95b2358882a824f65 /tcg/ia64/tcg-target.c | |
| parent | 1f91f3921921870e76a8ee543acc0935b5230821 (diff) | |
| download | qemu-af9fe310702396333f983f17de68db8511de7b19.zip | |
tcg-ia64: Reduce code duplication in tcg_out_qemu_ld
The only differences were in the bswap insns emitted.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/ia64/tcg-target.c')
| -rw-r--r-- | tcg/ia64/tcg-target.c | 61 |
1 files changed, 24 insertions, 37 deletions
diff --git a/tcg/ia64/tcg-target.c b/tcg/ia64/tcg-target.c index 802ec33c07..8464ad6a59 100644 --- a/tcg/ia64/tcg-target.c +++ b/tcg/ia64/tcg-target.c @@ -1647,13 +1647,13 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, OPC_LD1_M1, OPC_LD2_M1, OPC_LD4_M1, OPC_LD8_M1 }; int addr_reg, data_reg, mem_index; - TCGMemOp s_bits, bswap; + TCGMemOp s_bits; + uint64_t bswap1, bswap2; data_reg = *args++; addr_reg = *args++; mem_index = *args; s_bits = opc & MO_SIZE; - bswap = opc & MO_BSWAP; /* Read the TLB entry */ tcg_out_qemu_tlb(s, addr_reg, s_bits, @@ -1662,6 +1662,18 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, INSN_NOP_I, INSN_NOP_I); /* P6 is the fast path, and P7 the slow path */ + + bswap1 = bswap2 = INSN_NOP_I; + if (opc & MO_BSWAP) { + bswap1 = tcg_opc_bswap64_i(TCG_REG_P6, TCG_REG_R8, TCG_REG_R8); + if (s_bits < MO_64) { + int shift = 64 - (8 << s_bits); + bswap2 = (opc & MO_SIGN ? OPC_EXTR_I11 : OPC_EXTR_U_I11); + bswap2 = tcg_opc_i11(TCG_REG_P6, bswap2, + TCG_REG_R8, TCG_REG_R8, shift, 63 - shift); + } + } + tcg_out_bundle(s, mLX, tcg_opc_mov_a(TCG_REG_P7, TCG_REG_R56, TCG_AREG0), tcg_opc_l2 ((tcg_target_long) qemu_ld_helpers[s_bits]), @@ -1674,41 +1686,16 @@ static inline void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCG_REG_R2, TCG_REG_R57), tcg_opc_i21(TCG_REG_P7, OPC_MOV_I21, TCG_REG_B6, TCG_REG_R3, 0)); - if (bswap && s_bits == MO_16) { - tcg_out_bundle(s, MmI, - tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], - TCG_REG_R8, TCG_REG_R2), - tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), - tcg_opc_i12(TCG_REG_P6, OPC_DEP_Z_I12, - TCG_REG_R8, TCG_REG_R8, 15, 15)); - } else if (bswap && s_bits == MO_32) { - tcg_out_bundle(s, MmI, - tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], - TCG_REG_R8, TCG_REG_R2), - tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), - tcg_opc_i12(TCG_REG_P6, OPC_DEP_Z_I12, - TCG_REG_R8, TCG_REG_R8, 31, 31)); - } else { - tcg_out_bundle(s, mmI, - tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], - TCG_REG_R8, TCG_REG_R2), - tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), - INSN_NOP_I); - } - if (!bswap) { - tcg_out_bundle(s, miB, - tcg_opc_movi_a(TCG_REG_P7, TCG_REG_R58, mem_index), - INSN_NOP_I, - tcg_opc_b5 (TCG_REG_P7, OPC_BR_CALL_SPTK_MANY_B5, - TCG_REG_B0, TCG_REG_B6)); - } else { - tcg_out_bundle(s, miB, - tcg_opc_movi_a(TCG_REG_P7, TCG_REG_R58, mem_index), - tcg_opc_bswap64_i(TCG_REG_P6, TCG_REG_R8, TCG_REG_R8), - tcg_opc_b5 (TCG_REG_P7, OPC_BR_CALL_SPTK_MANY_B5, - TCG_REG_B0, TCG_REG_B6)); - } - + tcg_out_bundle(s, MmI, + tcg_opc_m1 (TCG_REG_P6, opc_ld_m1[s_bits], + TCG_REG_R8, TCG_REG_R2), + tcg_opc_m1 (TCG_REG_P7, OPC_LD8_M1, TCG_REG_R1, TCG_REG_R2), + bswap1); + tcg_out_bundle(s, miB, + tcg_opc_movi_a(TCG_REG_P7, TCG_REG_R58, mem_index), + bswap2, + tcg_opc_b5 (TCG_REG_P7, OPC_BR_CALL_SPTK_MANY_B5, + TCG_REG_B0, TCG_REG_B6)); tcg_out_bundle(s, miI, INSN_NOP_M, INSN_NOP_I, |