Many thanks to Trent Nelson from snakebite.org for giving access to a
build farm with several different architectures and operating systems.
* check/lightning.c, lib/jit_disasm.c, lib/jit_ppc-cpu.c,
lib/jit_ppc-fpu.c, lib/jit_ppc.c, include/lightning.h,
include/lightning/jit_ppc.h, include/lightning/jit_private.h:
Adapt code to work on 32 bit AIX ppc using gcc. Most changes
are basically to adapt the elf64 logic to 32 bit, as it does
not use the same convention of 32 bit Darwin ppc.
* check/stack.tst: Add a fake memcpy function to the test
case if running under AIX, as it is not available to dlsym.
* configure.ac: Check for getopt.h header, not available in
AIX.
* include/lightning.h: Add check for __powerpc__ defined
in Linux, while Darwin defines __ppc__.
* include/lightning/jit_ppc.h: Adjust register definitions
for Darwin 32 bit and Linux 64 bit ppc usage and/or ABI.
* include/lightning/jit_private.h: Add proper check for
Linux __powerpc__ and an data definition for an workaround
to properly handle code that starts with a jump to a "main"
label.
* lib/jit_disasm.c: Add extra disassembler initialization
for __powerpc64__.
* lib/jit_ppc-cpu.c: Add extra macros and functions, and
correct/adapt previous ones to handle powerpc64.
* lib/jit_ppc-fpu.c: Adapt for 64 bit wordsize. Basically
add conversion from/to int32/int64 and proper handling of
load/store offsets too large for 32 bit.
* lib/jit_ppc.c: Add calls to 64 bit codes and adaptation
for the PowerPC 64 bit Linux ABI.
* lib/jit_arm.c, lib/jit_mips.c, lib/jit_sparc, lib/jit_x86.c,
lib/lightning.c: Correct off by one error when restarting jit
of a function due to finding too late that needs to spill/reload
some register. Problem was found by accident on a very special
condition during PowerPC 64 code adaptation.
* include/lightning/jit_ppc.h: Correct mismatch of JIT_F{1,5}
with enum codes, that were correct, and returned by jit_f().
* lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: Properly
implement and better describe values when generating stack
frames.
* lib/jit_ppc-cpu.c: Make movr a function that checks arguments
so that other code can safely assume it is a noop if src and dst
are the same register.
Implement rem{r,i}{,_u} as a div{,u}/mul/sub.
Correct ANDIS, ORIS and XORIS calls to cast the argument to
unsigned before the shift to avoid an assertion if the argument
had the topmost bit set.
Implement lshi, rshi and rshi_u as functions to test for a
zero argument, that would otherwise trigger an assertion when
computing the shift value.
Do a simple implementation of bm{s,c}{r,i} with a temporary,
"andr" of arguments and jump based on comparison with zero.
Correct typo in ldxi_c.
* lib/jit_ppc-fpu.c: Correct wrong arguments to FDIV* and STF*.
* lib/jit_ppc.c: Correct wrong check for 6 instead of 8 integer
arguments in registers. If calling a varargs function and
passing a float or double argument, also either store the
value in the stack or in integer registers, as varargs functions
do not fetch it from float registers.
Add "case" for new functions and incorrectly missing ones.
Call libgcc's __clear_cache, that should know what to do
if the hardware needs flushing cache before execution.
* lib/lightning.c: Do a simple/trivial logic in jit_regset_scan1,
that should make it easier for the compiler to optimize it, and
that also corrects the previously wrong code for big endian, and
that was causing problems in ppc due to not saving all callee save
registers as it was not "finding" them in the regset due to the
little endian assumption bug.
2012-12-02 Paulo Andrade <pcpa@gnu.org>
* lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c:
Actually change copyright owner to FSF as avertised.
* lib/jit_arm-cpu.c, lib/jit_arm-swf.c,
lib/jit_arm-vfp.c, lib/jit_arm.c,
lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c,
lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: New
files implementing initial code different jit backends.
* include/lightning/jit_private.h: Add extra field to the
private jit_patch_t type, required by the arm port.
* lib/Makefile.am: Update for the new backend implementation
files.
