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ARM, MIPS, PPC: Rematerialize FPR invariants first.

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This commit is contained in:
Mike Pall 2012-08-19 18:42:08 +02:00
parent 2ac083cb5a
commit 1481263aaa
1 changed files with 11 additions and 2 deletions
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13
src/lj_asm.c
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@ -451,7 +451,7 @@ static void ra_evictset(ASMState *as, RegSet drop)
checkmclim(as); checkmclim(as);
} }
#endif #endif
work = (drop & ~as->freeset) & RSET_GPR; work = (drop & ~as->freeset);
while (work) { while (work) {
Reg r = rset_pickbot(work); Reg r = rset_pickbot(work);
ra_restore(as, regcost_ref(as->cost[r])); ra_restore(as, regcost_ref(as->cost[r]));
@ -644,7 +644,7 @@ static void ra_destreg(ASMState *as, IRIns *ir, Reg r)
{ {
Reg dest = ra_dest(as, ir, RID2RSET(r)); Reg dest = ra_dest(as, ir, RID2RSET(r));
if (dest != r) { if (dest != r) {
ra_scratch(as, RID2RSET(r)); ra_modified(as, r);
emit_movrr(as, ir, dest, r); emit_movrr(as, ir, dest, r);
} }
} }
@ -1110,6 +1110,15 @@ static void asm_phi_shuffle(ASMState *as)
} }
/* Restore/remat invariants whose registers are modified inside the loop. */ /* Restore/remat invariants whose registers are modified inside the loop. */
#if !LJ_SOFTFP
work = as->modset & ~(as->freeset | as->phiset) & RSET_FPR;
while (work) {
Reg r = rset_pickbot(work);
ra_restore(as, regcost_ref(as->cost[r]));
rset_clear(work, r);
checkmclim(as);
}
#endif
work = as->modset & ~(as->freeset | as->phiset); work = as->modset & ~(as->freeset | as->phiset);
while (work) { while (work) {
Reg r = rset_pickbot(work); Reg r = rset_pickbot(work);