Commit Graph

16 Commits

Author SHA1 Message Date
Aurelien Jarno cfc86988a8 tcg: add ext{8,16,32}u_i{32,64} TCG ops
Currently zero extensions ops are implemented by a and op with a
constant. This is then catched in some backend, and replaced by
a zero extension instruction. While this works well on RISC
machines, this adds a useless register move on non-RISC machines.

Example on x86:
  ext16u_i32 r1, r2
is translated into
  mov    %eax,%ebx
  movzwl %bx, %ebx
while the optimized version should be:
  movzwl %ax, %ebx

This patch adds ext{8,16,32}u_i{32,64} TCG ops that can be
implemented in the backends to avoid emitting useless register
moves.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-04 13:24:45 +02:00
aurel32 9a5c57fdc1 tcg: add bswap16_i64 and bswap32_i64 TCG ops
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6832 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 09:35:12 +00:00
aurel32 84aafb06ff tcg: allow bswap16_i32 to be implemented by TCG backends
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6830 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 09:34:56 +00:00
aurel32 66896cb803 tcg: rename bswap_i32/i64 functions
Rename bswap_i32 into bswap32_i32 and bswap_i64 into bswap64_i64

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6829 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13 09:34:48 +00:00
aurel32 0dd0dd558b tcg: move {not,neg}_i{32,64} definitions at the right place
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6811 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-11 11:00:49 +00:00
aurel32 d2604285b2 Implement TCG not ops for x86-64
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6797 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-09 22:35:13 +00:00
aurel32 f31e937064 tcg: don't define TCG rotation ops if they are not supported
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6796 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-09 21:58:46 +00:00
aurel32 d42f183c04 Implement TCG rotation ops for x86-64
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6795 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-09 18:50:53 +00:00
aurel32 49516bc0d6 Some cleanups after dyngen removal
this patch removes some now unused things after dyngen removal.

1. dyngen-exec.h:  op_param, op _jmp and some associated macros
   are now unused;
2. Makefile.target:  tcg-dyngen is not needed anymore
2. tcg/tcg-op.h, tcg/tcg-opc.h:  gen-op.h is dead
3. tcg.c:
    - INDEX_op_end is now the first op
    - CONFIG_DYNGEN_OP is never defined
4. tcg.h:  dyngen_op not needed anymore
5. exec-all.h:  remove some ASM macros.

Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5922 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07 18:15:45 +00:00
bellard b314f2706b suppressed unused macro handling
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4580 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-25 18:21:31 +00:00
bellard 7e4597d7ae added debug_insn_start debug instruction
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4531 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-22 16:56:05 +00:00
pbrook 390efc54fb Add TCG native negation op.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4426 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-11 14:35:37 +00:00
blueswir1 bf6247fb76 Rename CONFIG_NO_DYNGEN_OP to CONFIG_DYNGEN_OP to avoid double negatives
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4412 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-10 12:27:33 +00:00
blueswir1 cf2be98437 Prepare for op.c removal and zero legacy ops
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4095 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-21 18:03:09 +00:00
bellard 5ff9d6a469 fixed sign extensions - added explicit side effect op flag - added discard instruction
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3963 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-04 00:37:54 +00:00
bellard c896fe29d6 TCG code generator
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3943 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-01 10:05:41 +00:00