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PPC: Fix HREFK code generation for huge tables.

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Mike Pall 2012-03-29 01:11:23 +02:00
parent 509ca0f0db
commit a53a549774
1 changed files with 3 additions and 3 deletions
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6
src/lj_asm_ppc.h
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@ -730,12 +730,12 @@ static void asm_hrefk(ASMState *as, IRIns *ir)
IRIns *irkey = IR(kslot->op1); IRIns *irkey = IR(kslot->op1);
int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node)); int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
int32_t kofs = ofs + (int32_t)offsetof(Node, key); int32_t kofs = ofs + (int32_t)offsetof(Node, key);
Reg dest = (ra_used(ir)||ofs > 65535) ? ra_dest(as, ir, RSET_GPR) : RID_NONE; Reg dest = (ra_used(ir)||ofs > 32736) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
Reg node = ra_alloc1(as, ir->op1, RSET_GPR); Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
Reg key = RID_NONE, type = RID_TMP, idx = node; Reg key = RID_NONE, type = RID_TMP, idx = node;
RegSet allow = rset_exclude(RSET_GPR, node); RegSet allow = rset_exclude(RSET_GPR, node);
lua_assert(ofs % sizeof(Node) == 0); lua_assert(ofs % sizeof(Node) == 0);
if (ofs > 65535) { if (ofs > 32736) {
idx = dest; idx = dest;
rset_clear(allow, dest); rset_clear(allow, dest);
kofs = (int32_t)offsetof(Node, key); kofs = (int32_t)offsetof(Node, key);
@ -761,7 +761,7 @@ static void asm_hrefk(ASMState *as, IRIns *ir)
} }
if (ra_hasreg(key)) emit_tai(as, PPCI_LWZ, key, idx, kofs+4); if (ra_hasreg(key)) emit_tai(as, PPCI_LWZ, key, idx, kofs+4);
emit_tai(as, PPCI_LWZ, type, idx, kofs); emit_tai(as, PPCI_LWZ, type, idx, kofs);
if (ofs > 65535) { if (ofs > 32736) {
emit_tai(as, PPCI_ADDIS, dest, dest, (ofs + 32768) >> 16); emit_tai(as, PPCI_ADDIS, dest, dest, (ofs + 32768) >> 16);
emit_tai(as, PPCI_ADDI, dest, node, ofs); emit_tai(as, PPCI_ADDI, dest, node, ofs);
} }