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introduce internal "mask" expression node to avoid mixed-type overloading of "/"

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This commit is contained in:
Vern Paxson 2023-09-26 14:39:26 -07:00
parent b53a025b1e
commit 434a7e059d
6 changed files with 55 additions and 13 deletions
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3
src/script_opt/CPP/Exprs.cc
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@ -80,6 +80,7 @@ string CPPCompile::GenExpr(const Expr* e, GenType gt, bool top_level)
case EXPR_TIMES:
return GenBinary(e, gt, "*", "mul");
case EXPR_DIVIDE:
case EXPR_MASK: // later code will split into addr masking
return GenBinary(e, gt, "/", "div");
case EXPR_MOD:
return GenBinary(e, gt, "%", "mod");
@ -1060,7 +1061,7 @@ string CPPCompile::GenBinaryAddr(const Expr* e, GenType gt, const char* op)
{
auto v1 = GenExpr(e->GetOp1(), GEN_DONT_CARE) + "->AsAddr()";
if ( e->Tag() == EXPR_DIVIDE )
if ( e->Tag() == EXPR_MASK )
{
auto gen = string("addr_mask__CPP(") + v1 + ", " + GenExpr(e->GetOp2(), GEN_NATIVE) + ")";