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DUALNUM: Make overflow guards weak. Add IR_USE and IR_MULOV.

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Mike Pall
2011-03-07 20:21:38 +01:00
parent a30f58b54b
commit 54978e481b
4 changed files with 40 additions and 4 deletions
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src/lj_asm.c
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@@ -3992,6 +3992,8 @@ static void asm_ir(ASMState *as, IRIns *ir)
/* Miscellaneous ops. */
case IR_LOOP: asm_loop(as); break;
case IR_NOP: case IR_XBAR: lua_assert(!ra_used(ir)); break;
case IR_USE:
ra_alloc1(as, ir->op1, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR); break;
case IR_PHI: asm_phi(as, ir); break;
case IR_HIOP: asm_hiop(as, ir); break;
@@ -4077,6 +4079,7 @@ static void asm_ir(ASMState *as, IRIns *ir)
/* Overflow-checking arithmetic ops. Note: don't use LEA here! */
case IR_ADDOV: asm_intarith(as, ir, XOg_ADD); break;
case IR_SUBOV: asm_intarith(as, ir, XOg_SUB); break;
case IR_MULOV: asm_intarith(as, ir, XOg_X_IMUL); break;
/* Memory references. */
case IR_AREF: asm_aref(as, ir); break;