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tcg-target.c 59 kB
tcg-target.h 2.8 kB

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# Date Author Comment
24e838b7 03/24/2011 04:27 am Peter Maydell

tcg/arm: Support host code being compiled for Thumb

Although the TCG generated code is always in ARM mode, it is possible
that the host code was compiled by gcc in Thumb mode (this is often the
default for Linux distributions targeting ARM v7 only). Handle this...

56779034 01/12/2011 01:06 am Aurelien Jarno

tcg arm/mips/ia64: add a comment about retranslation and caches

Add a comment about cache coherency and retranslation, so that people
developping new targets based on existing ones are warned of the issue.

Acked-by: Edgar E. Iglesias <>...

0f11f25a 01/10/2011 08:30 am Aurelien Jarno

tcg/arm: improve constant loading

Improve constant loading in two ways:
- On all ARM versions, it's possible to load 0xffffff00 = 0x100 using
the mvn rd, #0. Fix the conditions.
On <= ARMv6 versions, where movw and movt are not available, load the
constants using mov and orr with rotations depending on the constant...

9a3abc21 01/08/2011 05:41 pm Aurelien Jarno

tcg/arm: fix qemu_st64 for big endian targets

Due to a typo, qemu_st64 doesn't properly byteswap the 32-bit low word of
a 64 bit word before saving it. This patch fixes that.

Acked-by: Andrzej Zaborowski <>
Signed-off-by: Aurelien Jarno <>

c69806ab 01/08/2011 05:39 pm Aurelien Jarno

tcg/arm: fix branch target change during code retranslation

QEMU uses code retranslation to restore the CPU state when an exception
happens. For it to work the retranslation must not modify the generated
code. This is what is currently implemented in ARM TCG....

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"...

e23886a9 04/25/2010 06:46 am Aurelien Jarno

tcg/arm: fix condition in zero/sign extension functions

Signed-off-by: Aurelien Jarno <>

914ccf51 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: optimize register allocation order

The beginning of the register allocation order list on the TCG arm
target matches the list of clobbered registers. This means that when an
helper is called, there is almost always clobbered registers that have
to be spilled....

c66b5c2c 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: don't try to load constants using pc

There is statistically almost 0 chances to use this code, so
remove it.

Signed-off-by: Aurelien Jarno <>

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