From: Florian Krohm <flo2030@eich-krohm.de>
Date: Wed, 3 Sep 2025 15:09:50 +0000 (+0000)
Subject: ir_opt.c:  Algebraic simplification for Iop_Or1.
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a7fe47937b088aff567f9de7c0a4275a6ca6e139;p=thirdparty%2Fvalgrind.git

ir_opt.c:  Algebraic simplification for Iop_Or1.

Adapt function mkOnesOfPrimopResultType accordingly.
---

diff --git a/VEX/priv/ir_opt.c b/VEX/priv/ir_opt.c
index f38a7be64..1e4ba670e 100644
--- a/VEX/priv/ir_opt.c
+++ b/VEX/priv/ir_opt.c
@@ -1275,6 +1275,8 @@ static inline IRExpr* mkTrue(void)
 static IRExpr* mkOnesOfPrimopResultType ( IROp op )
 {
    switch (op) {
+      case Iop_Or1:
+         return IRExpr_Const(IRConst_U1(0x1));
       case Iop_Or8:
          return IRExpr_Const(IRConst_U8(0xFF));
       case Iop_Or16:
@@ -2599,23 +2601,24 @@ static IRExpr* fold_Expr_WRK ( IRExpr** env, IRExpr* e )
                }
                break;
 
+            case Iop_Or1:
             case Iop_Or8:
             case Iop_Or16:
             case Iop_Or32:
             case Iop_Or64:
             case Iop_Max32U:
-               /* Or8/Or16/Or32/Or64/Max32U(x,0) ==> x */
+               /* Or1/Or8/Or16/Or32/Or64/Max32U(x,0) ==> x */
                if (isZeroU(e->Iex.Binop.arg2)) {
                   e2 = e->Iex.Binop.arg1;
                   break;
                }
-               /* Or8/Or16/Or32/Or64/Max32U(0,x) ==> x */
+               /* Or1/Or8/Or16/Or32/Or64/Max32U(0,x) ==> x */
                if (isZeroU(e->Iex.Binop.arg1)) {
                   e2 = e->Iex.Binop.arg2;
                   break;
                }
-               /* Or8/Or16/Or32/Or64/Max32U(x,1---1b) ==> 1---1b */
-               /* Or8/Or16/Or32/Or64/Max32U(1---1b,x) ==> 1---1b */
+               /* Or1/Or8/Or16/Or32/Or64/Max32U(x,1---1b) ==> 1---1b */
+               /* Or1/Or8/Or16/Or32/Or64/Max32U(1---1b,x) ==> 1---1b */
                if (isOnesU(e->Iex.Binop.arg1) || isOnesU(e->Iex.Binop.arg2)) {
                   e2 = mkOnesOfPrimopResultType(e->Iex.Binop.op);
                   break;