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add JIT_NEED_PUSH_POP and merge correct implementation of push/pop for SPARC
2006-11-20 Paolo Bonzini <bonzini@gnu.org> Ludovic Courtes <ludo@chbouib.org> * lightning/i386/core-32.h: Disable jit_push and jit_pop if stack not needed. * lightning/i386/core-64.h: Disable jit_push and jit_pop if stack not needed. * lightning/sparc/core.h: Merge final implementation of jit_pushr and jit_popr. * lightning/ppc/core.h: Fix implementation of jit_pushr and jit_popr to work (more or less) across function calls. * tests/push-pop.c, tests/push-pop.ok: New test. * tests/Makefile.am: Run it. Patches applied: * lcourtes@laas.fr--2005-libre/lightning--stable--1.2--patch-32 Added missing SPARC changes from lightning@sv.gnu.org/lightning--stable--1.2--patch-10. * lcourtes@laas.fr--2005-libre/lightning--stable--1.2--patch-33 SPARC: Fixed pushr/popr using %l7 to hold the pushed register offset. * lcourtes@laas.fr--2005-libre/lightning--stable--1.2--patch-34 tests/push-pop.c: define `JIT_NEED_PUSH_POP'. git-archimport-id: bonzini@gnu.org--2004b/lightning--stable--1.2--patch-40
This commit is contained in:
Paolo Bonzini
parent
197d20aa96
commit
24794b0e83
10 changed files with 182 additions and 27 deletions
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2006-11-20 Paolo Bonzini <bonzini@gnu.org>
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Ludovic Courtes <ludo@chbouib.org>
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* lightning/i386/core-32.h: Disable jit_push and jit_pop if stack not needed.
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* lightning/i386/core-64.h: Disable jit_push and jit_pop if stack not needed.
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* lightning/sparc/core.h: Merge final implementation of jit_pushr and jit_popr.
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* lightning/ppc/core.h: Fix implementation of jit_pushr and jit_popr to
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work (more or less) across function calls.
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* tests/push-pop.c, tests/push-pop.ok: New test.
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* tests/Makefile.am: Run it.
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2006-11-20 Paolo Bonzini <bonzini@gnu.org>
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* lightning/asm-common.h: Make 64-bit safe.
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@ -768,16 +768,16 @@ variables, and pass the address around.
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typedef int (*pifi)(int); @rem{/* Pointer to Int Function of Int */}
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void stack_push(int reg, int *sp)
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{
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@{
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jit_stxi_i (*sp, JIT_FP, reg);
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*sp += sizeof (int);
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}
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@}
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void stack_pop(int reg, int *sp)
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{
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@{
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*sp -= sizeof (int);
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jit_ldxi_i (reg, JIT_FP, *sp);
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}
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@}
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pifi compile_rpn(char *expr)
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@{
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@ -63,8 +63,10 @@ struct jit_local_state {
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_jitl.alloca_offset -= (amount))
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/* Stack */
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#ifdef JIT_NEED_PUSH_POP
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#define jit_pushr_i(rs) PUSHLr(rs)
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#define jit_popr_i(rs) POPLr(rs)
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#endif
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/* The += in argssize allows for stack pollution */
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@ -106,8 +106,10 @@ struct jit_local_state {
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#define jit_rshr_ul(d, r1, r2) jit_replace((r1), (r2), _ECX, jit_qop_ ((d), (r1), SHRQrr(_CL, (d)) ))
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/* Stack */
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#ifdef JIT_NEED_PUSH_POP
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#define jit_pushr_i(rs) PUSHQr(rs)
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#define jit_popr_i(rs) POPQr(rs)
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#endif
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#define jit_base_prolog() (PUSHQr(_EBP), MOVQrr(_ESP, _EBP), PUSHQr(_EBX), PUSHQr(_R12), PUSHQr(_R13))
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#define jit_prolog(n) (_jitl.nextarg_geti = 0, _jitl.alloca_offset = -24, jit_base_prolog())
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@ -257,12 +257,16 @@ struct jit_local_state {
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#define jit_nop() NOP()
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#define jit_ori_i(d, rs, is) jit_chk_imu((is), ORIrri((d), (rs), (is)), ORrrr((d), (rs), JIT_AUX))
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#define jit_orr_i(d, s1, s2) ORrrr((d), (s1), (s2))
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#define jit_popr_i(rs) (LWZrm((rs), 0, 1), ADDIrri(1, 1, 4))
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#ifdef JIT_NEED_PUSH_POP
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#define jit_popr_i(rs) (LWZrm((rs), 8, 1), ADDIrri(1, 1, 4))
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#define jit_pushr_i(rs) (STWrm((rs), 4, 1), ADDIrri (1, 1, -4))
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#endif
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#define jit_prepare_i(numi) (_jitl.nextarg_puti = numi)
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#define jit_prepare_f(numf) (_jitl.nextarg_putf = numf)
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#define jit_prepare_d(numd) (_jitl.nextarg_putd = numd)
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#define jit_prolog(n) _jit_prolog(&_jit, (n))
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#define jit_pushr_i(rs) STWUrm((rs), -4, 1)
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#define jit_pusharg_i(rs) (--_jitl.nextarg_puti, MRrr((3 + _jitl.nextarg_putd * 2 + _jitl.nextarg_putf + _jitl.nextarg_puti), (rs)))
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#define jit_ret() _jit_epilog(&_jit)
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#define jit_retval_i(rd) MRrr((rd), 3)
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@ -34,9 +34,14 @@
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#define __lightning_core_h
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#define JIT_R_NUM 3
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#define JIT_V_NUM 6
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#define JIT_R(i) ((i) ? _Rl((i) - 1) : _Rg(2))
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#define JIT_V(i) _Rl((i)+2)
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#ifdef JIT_NEED_PUSH_POP
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# define JIT_V_NUM 7
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#else
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# define JIT_V_NUM 8
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#endif
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#define JIT_R(i) _Rg(2 + (i))
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#define JIT_V(i) _Rl(i)
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#define JIT_BIG _Rg(1) /* %g1 used to make 32-bit operands */
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#define JIT_BIG2 _Ro(7) /* %o7 used to make 32-bit compare operands */
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@ -62,7 +67,7 @@
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*/
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/* Implementation of `allocai'.
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/* Implementation of `allocai', `pushr' and `popr'.
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*
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* The SysV ABI for SPARC is specified in "System V Application Binary
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* Interface, SPARC Processor Supplement, Third Edition", available from
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@ -77,14 +82,20 @@
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*
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* Stack space may be allocated dynamically as decribed in Section
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* "Allocating Stack Space Dynamically", p. 3-36, and shown in Figure 3-49.
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* `allocai' is implementing by patching a function prolog's `save'
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* instruction in order to increase the initial frame size. Thus,
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* %fp and below is used for the memory allocated via `allocai'. */
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* `allocai' is implemented by patching a function prolog's `save'
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* instruction in order to increase the initial frame size. `pushr' is
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* implemented by storing register into a fixed-size region right below %fp
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* (thereby limiting the number of registers that may be pushed).
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*
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* Thus, %fp to %fp - JIT_SPARC_MAX_STACK_REGISTER_AREA is reserved for
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* pushed registers, and %fp - JIT_SPARC_MAX_STACK_REGISTER_AREA and below is
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* used for the memory allocated via `allocai'. */
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struct jit_local_state {
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int nextarg_put; /* Next %o reg. to be written */
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int nextarg_get; /* Next %i reg. to be read */
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jit_insn *save; /* Pointer to the `save' instruction */
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unsigned frame_size; /* Current frame size as allocated by `save' */
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int alloca_offset; /* Current offset to the alloca'd memory (negative
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@ -92,8 +103,24 @@ struct jit_local_state {
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jit_insn delay;
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};
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#ifdef JIT_NEED_PUSH_POP
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/* Maximum size for the "automatic variables" area on the stack (the area
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that starts from %fp-1 and ends at %sp+104, see the ABI doc). This must
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be a multiple of 8 so that %sp remains double-word aligned as required by
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SysV ABI (see page 3-10). In lightning, this effectively limits the
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number of registers that can be pushed with `pushr'.
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Initialize %l7 to contain the (negative) offset relative to %fp of the last
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register pushed. */
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# define JIT_SPARC_MAX_STACK_REGISTER_AREA (8 * sizeof (void *))
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# define JIT_SPARC_INIT_PUSH_POP() (MOVrr (_Rg(0), _Rl(7)))
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#else
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# define JIT_SPARC_MAX_STACK_REGISTER_AREA 0
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# define JIT_SPARC_INIT_PUSH_POP() ((void)0)
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#endif
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/* Minimum size of a stack frame. */
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#define JIT_SPARC_MIN_FRAME_SIZE 104
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#define JIT_SPARC_MIN_FRAME_SIZE (104 + JIT_SPARC_MAX_STACK_REGISTER_AREA)
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/* Round AMOUNT to the closest higher multiple of 2^ALIGNMENT. */
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@ -288,10 +315,9 @@ struct jit_local_state {
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#define jit_ori_i(d, rs, is) jit_chk_imm((is), ORrir((rs), (is), (d)), ORrrr((rs), JIT_BIG, (d)))
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#define jit_orr_i(d, s1, s2) ORrrr((s1), (s2), (d))
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#define jit_patch_at(delay_pc, pv) jit_patch_ (((delay_pc) - 1) , (pv))
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#define jit_popr_i(rs) (LDmr(JIT_SP, 0, (rs)), ADDrir(JIT_SP, 8, JIT_SP))
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#define jit_prepare_i(num) (_jitl.nextarg_put += (num))
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#define jit_prolog(numargs) (_jitl.save = (jit_insn *) _jit.x.pc, SAVErir (JIT_SP, -JIT_SPARC_MIN_FRAME_SIZE, JIT_SP), _jitl.frame_size = JIT_SPARC_MIN_FRAME_SIZE, _jitl.alloca_offset = 0, _jitl.nextarg_get = _Ri(0), _jitl.next_push = 0)
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#define jit_pushr_i(rs) (STrm((rs), JIT_SP, -8), SUBrir(JIT_SP, 8, JIT_SP))
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#define jit_prolog(numargs) (_jitl.save = (jit_insn *) _jit.x.pc, SAVErir (JIT_SP, -JIT_SPARC_MIN_FRAME_SIZE, JIT_SP), _jitl.frame_size = JIT_SPARC_MIN_FRAME_SIZE, _jitl.alloca_offset = -JIT_SPARC_MAX_STACK_REGISTER_AREA, _jitl.nextarg_get = _Ri(0), JIT_SPARC_INIT_PUSH_POP ())
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#define jit_pusharg_i(rs) (--_jitl.nextarg_put, MOVrr((rs), _Ro(_jitl.nextarg_put)))
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#define jit_ret() (RET(), RESTORE())
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#define jit_retval_i(rd) MOVrr(_Ro(0), (rd))
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@ -312,4 +338,9 @@ struct jit_local_state {
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#define jit_xori_i(d, rs, is) jit_chk_imm((is), XORrir((rs), (is), (d)), XORrrr((rs), JIT_BIG, (d)))
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#define jit_xorr_i(d, s1, s2) XORrrr((s1), (s2), (d))
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#ifdef JIT_NEED_PUSH_POP
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# define jit_pushr_i(rs) (SUBrir(_Rl(7), sizeof (void *), _Rl(7)), STWrx((rs), JIT_FP, _Rl(7)))
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# define jit_popr_i(rd) (LDSWxr(_Rl(7), JIT_FP, (rd)), ADDrir(_Rl(7), sizeof (void *), _Rl(7)))
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#endif
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#endif /* __lightning_core_h */
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@ -2,12 +2,12 @@ AM_CPPFLAGS = -I$(top_builddir) -I$(top_srcdir) -I$(top_srcdir)/lightning/$(cpu)
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check_PROGRAMS = fibit incr printf printf2 rpn fib fibdelay \
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add bp testfp funcfp rpnfp modi ldxi divi movi ret \
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allocai
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allocai push-pop
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noinst_DATA = fibit.ok incr.ok printf.ok printf2.ok rpn.ok \
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fib.ok fibdelay.ok testfp.ok funcfp.ok rpnfp.ok add.ok \
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bp.ok modi.ok ldxi.ok divi.ok movi.ok ret.ok \
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allocai.ok
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allocai.ok push-pop.ok
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EXTRA_DIST = $(noinst_DATA) run-test
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@ -17,7 +17,8 @@ endif
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if REGRESSION_TESTING
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TESTS = fib fibit fibdelay incr printf printf2 rpn add bp \
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testfp funcfp rpnfp modi ldxi divi movi ret allocai
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testfp funcfp rpnfp modi ldxi divi movi ret allocai \
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push-pop
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TESTS_ENVIRONMENT=$(srcdir)/run-test
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endif
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@ -41,7 +41,7 @@ check_PROGRAMS = fibit$(EXEEXT) incr$(EXEEXT) printf$(EXEEXT) \
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printf2$(EXEEXT) rpn$(EXEEXT) fib$(EXEEXT) fibdelay$(EXEEXT) \
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add$(EXEEXT) bp$(EXEEXT) testfp$(EXEEXT) funcfp$(EXEEXT) \
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rpnfp$(EXEEXT) modi$(EXEEXT) ldxi$(EXEEXT) divi$(EXEEXT) \
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movi$(EXEEXT) ret$(EXEEXT) allocai$(EXEEXT)
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movi$(EXEEXT) ret$(EXEEXT) allocai$(EXEEXT) push-pop$(EXEEXT)
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subdir = tests
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DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
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ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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@ -111,6 +111,11 @@ printf2_OBJECTS = printf2.$(OBJEXT)
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printf2_LDADD = $(LDADD)
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@DISASS_TRUE@printf2_DEPENDENCIES = \
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@DISASS_TRUE@ $(top_builddir)/opcode/libdisass.a
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push_pop_SOURCES = push-pop.c
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push_pop_OBJECTS = push-pop.$(OBJEXT)
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push_pop_LDADD = $(LDADD)
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@DISASS_TRUE@push_pop_DEPENDENCIES = \
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@DISASS_TRUE@ $(top_builddir)/opcode/libdisass.a
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ret_SOURCES = ret.c
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ret_OBJECTS = ret.$(OBJEXT)
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ret_LDADD = $(LDADD)
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@ -135,11 +140,11 @@ COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
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CCLD = $(CC)
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LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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SOURCES = add.c allocai.c bp.c divi.c fib.c fibdelay.c fibit.c \
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funcfp.c incr.c ldxi.c modi.c movi.c printf.c printf2.c ret.c \
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rpn.c rpnfp.c testfp.c
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funcfp.c incr.c ldxi.c modi.c movi.c printf.c printf2.c \
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push-pop.c ret.c rpn.c rpnfp.c testfp.c
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DIST_SOURCES = add.c allocai.c bp.c divi.c fib.c fibdelay.c fibit.c \
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funcfp.c incr.c ldxi.c modi.c movi.c printf.c printf2.c ret.c \
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rpn.c rpnfp.c testfp.c
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funcfp.c incr.c ldxi.c modi.c movi.c printf.c printf2.c \
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push-pop.c ret.c rpn.c rpnfp.c testfp.c
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DATA = $(noinst_DATA)
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ETAGS = etags
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CTAGS = ctags
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@ -248,12 +253,13 @@ AM_CPPFLAGS = -I$(top_builddir) -I$(top_srcdir) -I$(top_srcdir)/lightning/$(cpu)
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noinst_DATA = fibit.ok incr.ok printf.ok printf2.ok rpn.ok \
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fib.ok fibdelay.ok testfp.ok funcfp.ok rpnfp.ok add.ok \
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bp.ok modi.ok ldxi.ok divi.ok movi.ok ret.ok \
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allocai.ok
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allocai.ok push-pop.ok
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EXTRA_DIST = $(noinst_DATA) run-test
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@DISASS_TRUE@LDADD = $(top_builddir)/opcode/libdisass.a
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@REGRESSION_TESTING_TRUE@TESTS = fib fibit fibdelay incr printf printf2 rpn add bp \
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@REGRESSION_TESTING_TRUE@ testfp funcfp rpnfp modi ldxi divi movi ret allocai
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@REGRESSION_TESTING_TRUE@ testfp funcfp rpnfp modi ldxi divi movi ret allocai \
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@REGRESSION_TESTING_TRUE@ push-pop
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@REGRESSION_TESTING_TRUE@TESTS_ENVIRONMENT = $(srcdir)/run-test
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all: all-am
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@ -334,6 +340,9 @@ printf$(EXEEXT): $(printf_OBJECTS) $(printf_DEPENDENCIES)
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printf2$(EXEEXT): $(printf2_OBJECTS) $(printf2_DEPENDENCIES)
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@rm -f printf2$(EXEEXT)
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$(LINK) $(printf2_LDFLAGS) $(printf2_OBJECTS) $(printf2_LDADD) $(LIBS)
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push-pop$(EXEEXT): $(push_pop_OBJECTS) $(push_pop_DEPENDENCIES)
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@rm -f push-pop$(EXEEXT)
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$(LINK) $(push_pop_LDFLAGS) $(push_pop_OBJECTS) $(push_pop_LDADD) $(LIBS)
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ret$(EXEEXT): $(ret_OBJECTS) $(ret_DEPENDENCIES)
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@rm -f ret$(EXEEXT)
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$(LINK) $(ret_LDFLAGS) $(ret_OBJECTS) $(ret_LDADD) $(LIBS)
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@ -367,6 +376,7 @@ distclean-compile:
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/movi.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/printf.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/printf2.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/push-pop.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ret.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rpn.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rpnfp.Po@am__quote@
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91
tests/push-pop.c
Normal file
91
tests/push-pop.c
Normal file
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@ -0,0 +1,91 @@
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/******************************** -*- C -*- ****************************
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*
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* Test `jit_pushr_i' and `jit_popr_i'
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*
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***********************************************************************/
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/* Contributed by Ludovic Courtès. */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#define JIT_NEED_PUSH_POP
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#include <stdio.h>
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#include <string.h>
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#include "lightning.h"
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typedef int (* stakumilo_t) (int);
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static void
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display_message (const char *fmt, int i)
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{
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printf (fmt, i);
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}
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static stakumilo_t
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generate_push_pop (void)
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{
|
||||
static const char msg[] = "we got %i\n";
|
||||
static char buffer[1024];
|
||||
stakumilo_t result;
|
||||
int arg;
|
||||
|
||||
result = (stakumilo_t)(jit_set_ip (buffer).ptr);
|
||||
jit_prolog (1);
|
||||
arg = jit_arg_i ();
|
||||
jit_getarg_i (JIT_R1, arg);
|
||||
|
||||
/* Save R1 on the stack. */
|
||||
jit_pushr_i (JIT_R1);
|
||||
|
||||
/* Save two other registers just for the sake of using the stack. */
|
||||
jit_movi_i (JIT_R0, -1);
|
||||
jit_movi_i (JIT_R2, -1);
|
||||
jit_pushr_i (JIT_R0);
|
||||
jit_pushr_i (JIT_R2);
|
||||
|
||||
jit_movr_i (JIT_R0, JIT_R1);
|
||||
jit_movi_p (JIT_R1, msg);
|
||||
|
||||
/* Invoke a function that may modify R1. */
|
||||
jit_prepare (2);
|
||||
jit_pusharg_i (JIT_R0);
|
||||
jit_pusharg_p (JIT_R1);
|
||||
(void)jit_finish (display_message);
|
||||
|
||||
/* Restore the dummy registers. */
|
||||
jit_popr_i (JIT_R2);
|
||||
jit_popr_i (JIT_R0);
|
||||
|
||||
/* Restore R1. */
|
||||
jit_popr_i (JIT_R1);
|
||||
|
||||
jit_movr_i (JIT_RET, JIT_R1);
|
||||
|
||||
jit_ret ();
|
||||
jit_flush_code (buffer, jit_get_ip ().ptr);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
stakumilo_t stakumilo;
|
||||
|
||||
stakumilo = generate_push_pop ();
|
||||
if (stakumilo (7777) != 7777)
|
||||
{
|
||||
printf ("failed: got %i instead of %i\n",
|
||||
stakumilo (7777), 7777);
|
||||
return 1;
|
||||
}
|
||||
else
|
||||
printf ("succeeded\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
2
tests/push-pop.ok
Normal file
2
tests/push-pop.ok
Normal file
|
|
@ -0,0 +1,2 @@
|
|||
we got 7777
|
||||
succeeded
|
||||
Loading…
Add table
Add a link
Reference in a new issue