fixup! peepopt: Support shift amounts zero-padded from below

YosysHQ · Aug 2, 2023 · c2eebb3 · c2eebb3
1 parent bed6414
commit c2eebb3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/passes/pmgen/peepopt_shiftmul_left.pmg b/passes/pmgen/peepopt_shiftmul_left.pmg
@@ -87,7 +87,7 @@ code
 
 	int factor_bits = ceil_log2(mul_const.as_int());
 	// make sure the multiplication never wraps around
-	if (GetSize(shift_amount) < factor_bits + GetSize(mul_din))
+	if (GetSize(shift_amount) + log2scale < factor_bits + GetSize(mul_din))
 		reject;
 
 	if (neg) {