Recognize the identity function for low-part multiply. Suggested-by: Luis Pires <luis.pi...@eldorado.org.br> Signed-off-by: Richard Henderson <richard.hender...@linaro.org> --- tcg/optimize.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c index bea82305db..fe2b1eb18e 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1460,7 +1460,8 @@ static bool fold_movcond(OptContext *ctx, TCGOp *op) static bool fold_mul(OptContext *ctx, TCGOp *op) { if (fold_const2(ctx, op) || - fold_xi_to_i(ctx, op, 0)) { + fold_xi_to_i(ctx, op, 0) || + fold_xi_to_x(ctx, op, 1)) { return true; } return false; -- 2.25.1