Commit graph

19 commits

Author SHA1 Message Date
Richard Henderson cbc5f919c2
tcg/arm: Support INDEX_op_extract2_i32
Backports commit 3b832d67a993968868f4087a9720a5c911e23f7a from qemu
2019-04-30 09:39:30 -04:00
Richard Henderson 269fa0daba
tcg: Add INDEX_op_extract2_{i32,i64}
This will let backends implement the double-word shift operation.

Backports commit fce1296f135669eca85dc42154a2a352c818ad76 from qemu
2019-04-30 09:29:05 -04:00
Richard Henderson 5c4e852c6e
tcg: Add TCG_TARGET_HAS_MEMORY_BSWAP
For now, defined universally as true, since we previously required
backends to implement swapped memory operations. Future patches
may now remove that support where it is onerous.

Backports commit e1dcf3529d0797b25bb49a20e94b62eb93e7276a from qemu
2018-12-18 05:56:58 -05:00
Richard Henderson f96514a99c
tcg: Rearrange ldst label tracking
Dispense with TCGBackendData, as it has never been used for more than
holding a single pointer. Use a define in the cpu/tcg-target.h to
signal requirement for TCGLabelQemuLdst, so that we can drop the no-op
tcg-be-null.h stubs. Rename tcg-be-ldst.h to tcg-ldst.inc.c.

Backports commit 659ef5cbb893872d25e9d95191cc23b16546c8a1 from qemu
2018-03-04 22:13:13 -05:00
Richard Henderson 31b8b67cd3
tcg: Move USE_DIRECT_JUMP discriminator to tcg/cpu/tcg-target.h
Replace the USE_DIRECT_JUMP ifdef with a TCG_TARGET_HAS_direct_jump
boolean test. Replace the tb_set_jmp_target1 ifdef with an unconditional
function tb_target_set_jmp_target.

While we're touching all backends, add a parameter for tb->tc_ptr;
we're going to need it shortly for some backends.

Move tb_set_jmp_target and tb_add_jump from exec-all.h to cpu-exec.c.

Backports commit a85833933628384d74ec412024d55cf012640287 from qemu
2018-03-04 21:52:35 -05:00
Pranith Kumar 862bbef07d
tcg: Add tcg target default memory ordering
Backports commit 71650df7b0ee0600308810a267a123b971b3d533 from qemu
2018-03-04 13:22:41 -05:00
Richard Henderson 1d6c4f1a42
tcg/arm: Implement goto_ptr
Backports commit 085c648bef7301eabe7d4a3301c8d012ae4423b8 from qemu
2018-03-03 14:18:41 -05:00
Emilio G. Cota 8f4f15e5f5
tcg: Introduce goto_ptr opcode and tcg_gen_lookup_and_goto_ptr
Instead of exporting goto_ptr directly to TCG frontends, export
tcg_gen_lookup_and_goto_ptr(), which calls goto_ptr with the pointer
returned by the lookup_tb_ptr() helper. This is the only use case
we have for goto_ptr and lookup_tb_ptr, so having this function is
very convenient. Furthermore, it trivially allows us to avoid calling
the lookup helper if goto_ptr is not implemented by the backend.

Backports commit cedbcb01529cb6cf9a2289cdbebbc63f6149fc18 from qemu
2018-03-02 21:05:18 -05:00
Peter Maydell b8b70dfcd2
Drop QEMU_GNUC_PREREQ() checks for gcc older than 4.1
We already require gcc 4.1 or newer (for the atomic
support), so the fallback codepaths for older gcc
versions than that are now dead code and we can
just delete them.

NB: clang reports itself as gcc 4.2 (regardless of
clang version), so clang won't be using the fallbacks
either.

Backports commit fa54abb8c298f892639ffc4bc2f61448ac3be4a1 from qemu
2018-03-02 18:59:05 -05:00
Richard Henderson 5f6e7bbdbd
tcg: Add opcode for ctpop
The number of actual invocations of ctpop itself does not warrent
an opcode, but it is very helpful for POWER7 to use in generating
an expansion for ctz.

Backports commit a768e4e99247911f00c5c0267c12d4e207d5f6cc from qemu
2018-03-01 18:26:41 -05:00
Richard Henderson 303fc987ed
tcg/arm: Handle ctz and clz opcodes
Backports commit cc0fec8a4d2a8546fe236a09bfd80150af9cbe6b from qemu
2018-03-01 16:20:46 -05:00
Richard Henderson 2cf34e1b55
tcg: Add clz and ctz opcodes
Backports commit 0e28d0063bbd9e59a981ea2d20f82f30c5d956a8 from qemu
2018-03-01 16:04:11 -05:00
Richard Henderson cabb6f71a0
tcg/arm: Implement field extraction opcodes
Backports commit ec903af18418e0870af84f6036d7aca1e6a5dc0a from qemu
2018-03-01 13:33:55 -05:00
Richard Henderson c4f56ec541
tcg/arm: Move isa detection to tcg-target.h
This allows us to use this detection within the TCG_TARGET_HAS_*
macros, instead of requiring a function call into tcg-target.inc.c.

Backports commit 40b2ccb156534f5d5f1d110a6ce008d87ee10af1 from qemu
2018-03-01 13:32:39 -05:00
Richard Henderson 8e0585dcb1
tcg: Add field extraction primitives
Adds tcg_gen_extract_* and tcg_gen_sextract_* for extraction of
fixed position bitfields, much like we already have for deposit.

Backports commit 7ec8bab3deae643b1ce579c2d65a244f30708330 from qemu
2018-03-01 13:21:30 -05:00
Markus Armbruster 25ec9ab016
tcg: Clean up tcg-target.h header guards
These use guard symbols like TCG_TARGET_$target.
scripts/clean-header-guards.pl doesn't like them because they don't
match their file name (they should, to make guard collisions less
likely).

Clean them up: use guard symbol $target_TCG_TARGET_H for
tcg/$target/tcg-target.h.

Backports commit 14e54f8ecfe9c5e17348f456781344737ed10b3b from qemu
2018-02-25 04:15:08 -05:00
Paolo Bonzini b34c233c2f
tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS
This will be used to size the TLB when more than 8 MMU modes are
used by the target. Limitations come from the limited size of
the immediate fields (which sometimes, as in the case of Aarch64,
extend to instructions that shift the immediate).

Backports commit 006f8638c62bca2b0caf609485f47fa5e14d8a3c from qemu
2018-02-13 08:28:29 -05:00
Nguyen Anh Quynh 3b52af4fbd avoid confusion between macro & variable use_idiv_instructions (ARM backend) 2016-01-18 23:53:50 +08:00
Nguyen Anh Quynh 344d016104 import 2015-08-21 15:04:50 +08:00