Message ID | 20241222162446.2415717-10-richard.henderson@linaro.org |
---|---|
State | Superseded |
Headers | show
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Series |
tcg: Remove in-flight mask data from OptContext
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expand
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diff --git a/tcg/optimize.c b/tcg/optimize.c index 8119447c89..d13001e53a 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1316,7 +1316,8 @@ static bool fold_and(OptContext *ctx, TCGOp *op) static bool fold_andc(OptContext *ctx, TCGOp *op) { - uint64_t z1; + uint64_t z_mask, s_mask; + TempOptInfo *t1, *t2; if (fold_const2(ctx, op) || fold_xx_to_i(ctx, op, 0) || @@ -1325,24 +1326,23 @@ static bool fold_andc(OptContext *ctx, TCGOp *op) return true; } - z1 = arg_info(op->args[1])->z_mask; + t1 = arg_info(op->args[1]); + t2 = arg_info(op->args[2]); + z_mask = t1->z_mask; /* * Known-zeros does not imply known-ones. Therefore unless * arg2 is constant, we can't infer anything from it. */ - if (arg_is_const(op->args[2])) { - uint64_t z2 = ~arg_info(op->args[2])->z_mask; - if (fold_affected_mask(ctx, op, z1 & ~z2)) { + if (t2->is_const) { + if (fold_affected_mask(ctx, op, z_mask & t2->val)) { return true; } - z1 &= z2; + z_mask &= ~t2->val; } - ctx->z_mask = z1; - ctx->s_mask = arg_info(op->args[1])->s_mask - & arg_info(op->args[2])->s_mask; - return fold_masks(ctx, op); + s_mask = t1->s_mask & t2->s_mask; + return fold_masks_zs(ctx, op, z_mask, s_mask); } static bool fold_brcond(OptContext *ctx, TCGOp *op)