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Re: [Qemu-devel] [PULL 05/10] tcg: Put opcodes in a linked list
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PULL 05/10] tcg: Put opcodes in a linked list |
Date: |
Mon, 12 Jan 2015 19:47:51 +0000 |
On 9 January 2015 at 21:23, Richard Henderson <address@hidden> wrote:
> The previous setup required ops and args to be completely sequential,
> and was error prone when it came to both iteration and optimization.
>
> Signed-off-by: Richard Henderson <address@hidden>
> void tcg_gen_qemu_ld_i32(TCGv_i32 val, TCGv addr, TCGArg idx, TCGMemOp memop)
> {
> memop = tcg_canonicalize_memop(memop, 0, 0);
> -
> - *tcg_ctx.gen_opc_ptr++ = INDEX_op_qemu_ld_i32;
> - tcg_add_param_i32(val);
> - tcg_add_param_tl(addr);
> - *tcg_ctx.gen_opparam_ptr++ = memop;
> - *tcg_ctx.gen_opparam_ptr++ = idx;
> + gen_ldst_i32(INDEX_op_qemu_ld_i32, val, addr, memop, idx);
> }
> void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr, TCGArg idx, TCGMemOp memop)
> @@ -1910,7 +1932,7 @@ void tcg_gen_qemu_ld_i64(TCGv_i64 val, TCGv addr,
> TCGArg idx, TCGMemOp memop)
> memop = tcg_canonicalize_memop(memop, 1, 0);
>
> if (TCG_TARGET_REG_BITS == 32 && (memop & MO_SIZE) < MO_64) {
> - tcg_gen_qemu_ld_i32(TCGV_LOW(val), addr, idx, memop);
> + gen_ldst_i32(INDEX_op_qemu_ld_i32, TCGV_LOW(val), addr, idx, memop);
> if (memop & MO_SIGN) {
> tcg_gen_sari_i32(TCGV_HIGH(val), TCGV_LOW(val), 31);
> } else {
memop and idx are the wrong way round in this call to gen_ldst_i32...
This causes "make check" to fail on a 32-bit host, because we end
up timing out on one of the ACPI tests because what should have been
an 8-bit load becomes a 32-bit one.
-- PMM
- [Qemu-devel] [PULL 00/10] Linked list for tcg ops, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 03/10] tcg: Move emit of INDEX_op_end into gen_tb_end, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 02/10] tcg: Reduce ifdefs in tcg-op.c, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 04/10] tcg: Introduce tcg_op_buf_count and tcg_op_buf_full, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 08/10] tcg: Remove unused opcodes, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 07/10] tcg: Implement insert_op_before, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 06/10] tcg: Remove opcodes instead of noping them out, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 10/10] tcg: Further optimizations for add2 and sub2_i32, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 05/10] tcg: Put opcodes in a linked list, Richard Henderson, 2015/01/09
- Re: [Qemu-devel] [PULL 05/10] tcg: Put opcodes in a linked list,
Peter Maydell <=
- [Qemu-devel] [PULL 09/10] tcg: Optimize muls2_i32, Richard Henderson, 2015/01/09
- [Qemu-devel] [PULL 01/10] tcg: Move some opcode generation functions out of line, Richard Henderson, 2015/01/09
- Re: [Qemu-devel] [PULL 00/10] Linked list for tcg ops, Peter Maydell, 2015/01/12