1; RUN: opt < %s -instcombine -S | FileCheck %s 2 3; This cannot be turned into a sign extending cast! 4 5define i64 @test(i64 %X) { 6 %Y = shl i64 %X, 16 ; <i64> [#uses=1] 7; CHECK: %Y = shl i64 %X, 16 8 %Z = ashr i64 %Y, 16 ; <i64> [#uses=1] 9; CHECK: %Z = ashr exact i64 %Y, 16 10 ret i64 %Z 11; CHECK: ret i64 %Z 12} 13 14