It is required to set %al to 0-8 inclusive, telling the number of
xmm registers used to pass arguments.
This also corrects the calculation of _jitl.nextarg_putfp, that
would be incorrect if calling a function with both, float and double
arguments.
Lightning provides at least 6 float registers, so, in this commit,
reduce from 8 to 7 so that code respecting JIT_FPR_NUM should be
safe again't use of JIT_FPTMP.
To not clobber JIT_R2, JIT_REXTMP is defined to the callee save register
%r12, instead of the expected, scratch register %r11.
To have JIT_V_NUM at least at 3, it now also uses %r14, but does not add
%r15, that could be JIT_V(4) to simplify logic of keeping stack 16 bytes
aligned.
2010-08-10 Paulo César Pereira de Andrade <pcpa@mandriva.com.br>
Paolo Bonzini <bonzini@gnu.org>
* lightning/i386/core-32.h (jit_replace): Use MOVLrr, not MOVLir.
(jit_movbrm): Check index register as well.
* lightning/i386/fp-64.h: Add jit_extr_f_d and jit_extr_d_f.
* lightning/fp-common.h: Add jit_extr_f_d and jit_extr_d_f.
2010-07-28 Paolo Bonzini <bonzini@gnu.org>
* THANKS: Add Paulo Cesar Pereira de Andrade.
* doc/porting.texi: Fix ordering of arguments in jit_stxi.
* lightning/i386/core-32.h (jit_replace): Remove cmp argument.
* lightning/i386/fp-64.h (jit_movi_f): Fix.
2009-02-17 Paolo Bonzini <bonzini@gnu.org>
* lightning/fp-common.h: Define double branches if missing.
* lightning/i386/asm.h: Define JC and JNC mnemonics.
* lightning/i386/fp-32.h: Fix jit_fp_btest. All reported
by Mike Spivey.
2008-07-02 Laurent Michel <ldm@engr.uconn.edu>
* lightning/ppc/funcs.h (jit_flush_code): modified the computation
of start/end. The pointer arithmetic was done without casting. It
prevented compilation with recent gcc versions.
* lightning/ppc/core.h (jit_pushr_i): The offset for the store was
incorrect. Should have been 4 bytes below SP (not above).
* lightning/ppc/core.h (jit_popr_i): The offset for the load was
incorrect. Should have been 0 (not +8).
2008-06-16 Paolo Bonzini <bonzini@gnu.org>
* lightning/i386/core.h: Use jit_save in jit_replace. Move JIT_R
definition...
* lightning/i386/core-32.h: ... here; define jit_save so that
the core.h has no effect on the 32-bit backend.
* lightning/i386/core-64.h: Place JIT_R1/JIT_R2 in R10/R11,
place outgoing arguments in the right spot from the beginning,
define jit_save, fix jit_reg8/jit_reg16.
2008-06-14 Laurent Michel <ldm@thorgal.homelinux.org>
* lightning/i386/core-64.h (jit_movi_l): When the operand is 0,
the XOR should be on a quadword.
* lightning/i386/core-64.h (jit_prolog): Keep 16-byte stack
alignment.
(jit_ret): Always use LEAVE.
2008-06-13 Laurent Michel <ldm@thorgal.homelinux.org>
* lightning/i386/core-64.h: Add (void) casts for C++ compatibility.
* lightning/i386/asm.h: Likewise.
2008-06-12 Paolo Bonzini <bonzini@gnu.org>
* lightning/i386/core.h: Move JIT_V definition...
* lightning/i386/core-32.h: ... here.
* lightning/i386/core-64.h: ... and here. Avoid dancing between
RSI/RDI and R12/R13, and place JIT_V1/JIT_V2 in R12/R13.
2008-06-11 Paolo Bonzini <bonzini@gnu.org>
* build-aux/lightning.m4: Adjust LIGHTNING_BACKENDS, don't
use suffix support to distinguish i386/x86_64.
* lightning/i386/Makefile.frag: Use LIGHTNING_TARGET_FILES
to distribute *-32.h and *-64.h files now.
* lightning/i386/asm-i386: Moved to...
* lightning/i386/asm.h: Include the appropriate subtarget file.
* lightning/i386/core-i386: Moved to...
* lightning/i386/core.h: Include the appropriate subtarget file.
* lightning/i386/fp.h: New, include the appropriate subtarget file.
* lightning/i386/asm-32: Do not include asm-i386.h.
* lightning/i386/asm-64.h: Likewise.
* lightning/i386/core-32: Do not include core-i386.h.
* lightning/i386/core-64.h: Likewise.
* lightning/Makefile.am: Adjust for renamed files.
* configure.ac: Define LIGHTNING_TARGET here.
* opcode/disass.c: Change list of valid LIGHTNING_TARGET values.
* lightningize.in: Robustify against missing subtarget files.
2008-06-11 Paolo Bonzini <bonzini@gnu.org>
* lightning/i386/core-32.h: Use separate __APPLE__ and SysV
prolog/ret macros. Subtract 12 bytes in __APPLE__ case to
keep stack aligned, and always use LEAVE in the epilog.
2008-03-21 Paolo Bonzini <bonzini@gnu.org>
* lightning/i386/core-64.h: Fix jit_{ld,st}{,x}i_{i,l}.
Remove jit_ld{,x}i_ul.
* lightning/core-common.h: Make jit_ld{,x}{i,r}_ul
always a synonym of the _l variant.
* doc/porting.texi: Document this.
