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# Date Author Comment
89c33337 09/15/2012 08:51 pm Blue Swirl

Remove unused CONFIG_TCG_PASS_AREG0 and dead code

Now that CONFIG_TCG_PASS_AREG0 is enabled for all targets,
remove dead code and support for !CONFIG_TCG_PASS_AREG0 case.

Remove dyngen-exec.h and all references to it. Although included by
hw/spapr_hcall.c, it does not seem to use it....
6845df48 09/10/2012 02:38 pm Aurelien Jarno

tcg/s390: fix ld/st with CONFIG_TCG_PASS_AREG0

The load/store slow path has been broken in e141ab52d:
- We need to move 4 registers for store functions and 3 registers for
load functions and not the reverse.
- According to the s390x calling convention the arguments of a function...
e141ab52 03/18/2012 02:21 pm Blue Swirl

softmmu templates: optionally pass CPUState to memory access functions

Optionally, make memory access helpers take a parameter for CPUState
instead of relying on global env.

On most targets, perform simple moves to reorder registers. On i386,
switch from regparm(3) calling convention to standard stack-based...
9349b4f9 03/14/2012 11:20 pm Andreas Färber

Rename CPUState -> CPUArchState

Scripted conversion:
for file in .[hc] hw/.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do
sed -i "s/CPUState/CPUArchState/g" $file
done...
dc439de7 10/08/2011 06:21 pm Peter Maydell

tcg/s390: Remove unused tcg_out_addi()

Remove the unused function tcg_out_addi() from the s390 TCG backend;
this brings it into line with other backends.

Signed-off-by: Peter Maydell <>
Acked-by: Richard Henderson <>...
5ddd17b4 09/17/2011 08:55 pm Stefan Weil

tcg/s390: Only one call output register needed for 64 bit hosts

The second register is only needed for 32 bit hosts.

Cc: Alexander Graf <>
Acked-by: Richard Henderson <>
Signed-off-by: Stefan Weil <>
Signed-off-by: Blue Swirl <>
614f104d 06/26/2011 09:25 pm Blue Swirl

Delegate setup of TCG temporaries to targets

Delegate TCG temp_buf setup to targets, so that they can use a stack
frame later instead.

Signed-off-by: Blue Swirl <>
cea5f9a2 06/26/2011 09:25 pm Blue Swirl

cpu-exec.c: avoid AREG0 use

Make functions take a parameter for CPUState instead of relying
on global env. Pass CPUState pointer to TCG prologue, which moves
it to AREG0.

Thanks to Peter Maydell and Laurent Desnogues for the ARM prologue
change.

Revert the hacks to avoid AREG0 use on Sparc hosts....
48bb3750 06/30/2010 12:07 am Richard Henderson

tcg-s390: new TCG Target

Original patch from Ulrich Hecht, further work from Alexander Graf
and Richard Henderson.

Cc: Ulrich Hecht <>
Cc: Alexander Graf <>
Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>
e4d58b41 06/09/2010 12:18 pm Richard Henderson

tcg: Make some tcg-target.c routines static.

Both tcg_target_init and tcg_target_qemu_prologue
are unused outside of tcg.c.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>
3b6dac34 06/09/2010 12:18 pm Richard Henderson

tcg: Add TYPE parameter to tcg_out_mov.

Mirror tcg_out_movi in having a TYPE parameter. This allows x86_64
to perform the move at the proper width, which may elide a REX prefix.

Introduce a TCG_TYPE_REG enumerator to represent the "native width"
of the host register, and to distinguish the usage from "pointer data"...
a9751609 03/26/2010 10:28 pm Richard Henderson

tcg: Name the opcode enumeration.

Give the enumeration formed from tcg-opc.h a name: TCGOpcode.
Use that enumeration type instead of "int" whereever appropriate.

Signed-off-by: Richard Henderson <>
Signed-off-by: Aurelien Jarno <>
2827822e 12/05/2009 06:36 pm Alexander Graf

S/390 fake TCG implementation

Qemu won't let us run a KVM target without having host TCG support. Well, for
now we don't have any so let's implement a fake target that only stubs out
everything.

I tried to keep the patch as close to Uli's source as possible, so whenever...