Cook the pasta according to the package directions. Drain and return pasta to the pot.
Meanwhile, heat the oil in a large skillet over medium heat. Add the garlic and cook, stirring, for 1 minute (do not let it brown).
Add the shrimp, wine, red pepper, and ½ teaspoon salt. Simmer until the shrimp are opaque, 2 to 3 minutes. Stir in the butter.
Toss the pasta with the shrimp mixture.