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(rbs_spill_NN): If r8 is non-negative on return from subroutine-call, increment it
by one. Take care of restoring the dirty partition before switching back to original backing store. (LD_LOC): Load only 4 bytes, not 8 bytes. (CK_LOC): New macro. (loadup): ar.pfs is saved in r36, not r34. After returning from subroutine call, check local variables to make sure they still contain the correct values. (resumption_point): New function. (Logical change 1.49)
This commit is contained in:
mostang.com!davidm
parent
d55a7f7dd4
commit
71ab0b2a3c
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@ -38,7 +38,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#define FRAME_SIZE 48
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#define SPILL(n) \
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/* void rbs_spill_#n(long iteration, void (*next_func[])()) */ \
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/* int rbs_spill_#n(long iteration, int (*next_func[])()) */ \
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.globl rbs_spill_##n; \
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.proc rbs_spill_##n; \
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rbs_spill_##n: \
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@ -91,7 +91,9 @@ rbs_spill_##n: \
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br.call.sptk.many rp = b6; \
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1: /* switch back to stack: */ \
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adds r3 = SAVED_SP_OFF+16, sp; \
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cmp.ge p8, p0 = r8, r0; \
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;; \
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(p8) add r8 = 1, r8; \
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ld8 r16 = [r3], (SAVED_RP_OFF-SAVED_SP_OFF);; /* saved sp */ \
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ld8 r17 = [r3], (SAVED_PFS_OFF-SAVED_RP_OFF);; /* saved rp */ \
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ld8 r18 = [r3], (SAVED_RNAT_OFF-SAVED_PFS_OFF);;/* saved pfs */ \
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@ -100,8 +102,17 @@ rbs_spill_##n: \
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ld8 r21 = [r3];; /* saved bspstore */ \
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mov rp = r17; \
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mov ar.pfs = r18; \
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mov ar.bspstore = r21; /* this also restores ar.bsp */ \
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;; \
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shl r3 = in0, STACK_SIZE_SHIFT; \
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addl r2 = @ltoff(stackmem), gp;; \
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ld8 r2 = [r2];; /* r2 = &stackmem */ \
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add r2 = r2, r3; /* r2 = stackmem[iteration] */ \
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mov r3 = ar.bsp;; \
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sub r2 = r3, r2;; /* r2 = dirty_size */ \
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shl r2 = r2, 16;; \
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mov ar.rsc = r2;; \
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alloc r3 = ar.pfs, 0, 0, 0, 0;; \
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loadrs;; \
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mov ar.bspstore = r21;; /* this also restores ar.bsp */ \
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mov ar.rnat = r19; \
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.restore sp; \
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mov sp = r16; \
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@ -134,18 +145,28 @@ rbs_spill_##n: \
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SPILL(92); SPILL(93); SPILL(94)
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#define LD_LOC(n) \
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ld4 loc##n = [in1], 8;; \
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ld4 loc##n = [in1], 4;; \
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cmp.eq p8, p9 = r0, loc##n;; \
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(p9) or loc##n = loc##n, r8; \
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(p8) ld4.s loc##n = [r0]
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/* void loadup (long iteration, int *values, next_func[]) */
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#define CK_LOC(n) \
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ld4 r16 = [in1], 4;; \
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cmp.eq p8, p9 = r0, r16; \
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or r16 = r16, r9;; \
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(p8) tnat.z p10, p0 = loc##n; \
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(p9) cmp.ne p10, p0 = r16, loc##n; \
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;; \
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(p10) mov r8 = -n; \
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(p10) br.cond.spnt.many .fail
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/* int loadup(long iteration, int *values, next_func[]) */
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.global loadup
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.proc loadup
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loadup:
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.prologue
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.save ar.pfs, r34
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.save ar.pfs, r36
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alloc loc1 = ar.pfs, 3, 90, 3, 0
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.save rp, loc0
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mov loc0 = rp
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@ -163,6 +184,7 @@ loadup:
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;;
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(p6) ld8 r16 = [r17], 8 // load entry point
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shl r8 = in0, 32 // store iteration # in top 32 bits
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mov r18 = in1
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;;
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(p6) ld8 r1 = [r17] // load gp
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(p6) mov b6 = r16
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@ -194,12 +216,54 @@ loadup:
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LD_LOC(88); LD_LOC(89)
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;;
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{ .mbb
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mov in1 = r18
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(p6) br.call.sptk.many rp = b6
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(p7) br.call.sptk.many rp = loadup
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}
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cmp.lt p8, p9 = r8, r0
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shl r9 = in0, 32 // store iteration # in top 32 bits
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(p8) br.cond.spnt.few .fail
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;;
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add r8 = 1, r8
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CK_LOC( 2); CK_LOC( 3)
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CK_LOC( 4); CK_LOC( 5); CK_LOC( 6); CK_LOC( 7)
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CK_LOC( 8); CK_LOC( 9); CK_LOC(10); CK_LOC(11)
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CK_LOC(12); CK_LOC(13); CK_LOC(14); CK_LOC(15)
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CK_LOC(16); CK_LOC(17); CK_LOC(18); CK_LOC(19)
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CK_LOC(20); CK_LOC(21); CK_LOC(22); CK_LOC(23)
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CK_LOC(24); CK_LOC(25); CK_LOC(26); CK_LOC(27)
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CK_LOC(28); CK_LOC(29); CK_LOC(30); CK_LOC(31)
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CK_LOC(32); CK_LOC(33); CK_LOC(34); CK_LOC(35)
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CK_LOC(36); CK_LOC(37); CK_LOC(38); CK_LOC(39)
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CK_LOC(40); CK_LOC(41); CK_LOC(42); CK_LOC(43)
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CK_LOC(44); CK_LOC(45); CK_LOC(46); CK_LOC(47)
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CK_LOC(48); CK_LOC(49); CK_LOC(50); CK_LOC(51)
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CK_LOC(52); CK_LOC(53); CK_LOC(54); CK_LOC(55)
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CK_LOC(56); CK_LOC(57); CK_LOC(58); CK_LOC(59)
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CK_LOC(60); CK_LOC(61); CK_LOC(62); CK_LOC(63)
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CK_LOC(64); CK_LOC(65); CK_LOC(66); CK_LOC(67)
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CK_LOC(68); CK_LOC(69); CK_LOC(70); CK_LOC(71)
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CK_LOC(72); CK_LOC(73); CK_LOC(74); CK_LOC(75)
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CK_LOC(76); CK_LOC(77); CK_LOC(78); CK_LOC(79)
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CK_LOC(80); CK_LOC(81); CK_LOC(82); CK_LOC(83)
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CK_LOC(84); CK_LOC(85); CK_LOC(86); CK_LOC(87)
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CK_LOC(88); CK_LOC(89)
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.fail:
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mov rp = loc0
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mov ar.pfs = loc1
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br.ret.sptk.many rp
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.endp loadup
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.global resumption_point_label
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.proc resumption_point
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resumption_point:
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resumption_point_label:
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.prologue
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.save rp, r16
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.save ar.pfs, r0
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.body
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mov r8 = r15
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mov b6 = r16
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;;
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br.cond.sptk.many b6
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.endp resumption_point
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