When generating a all-one mask value whose bitwidth is larger than 64, signed extension should be used rather then zero extension. Reviewed By: jsji Differential Revision: https://reviews.llvm.org/D120865
When generating a all-one mask value whose bitwidth is larger than 64, signed extension should be used rather then zero extension. Reviewed By: jsji Differential Revision: https://reviews.llvm.org/D120865