; RUN: opt < %s -passes=instcombine -S | FileCheck %s | |
; This cannot be turned into a sign extending cast! | |
define i64 @test(i64 %X) { | |
%Y = shl i64 %X, 16 ; <i64> [#uses=1] | |
; CHECK: %Y = shl i64 %X, 16 | |
%Z = ashr i64 %Y, 16 ; <i64> [#uses=1] | |
; CHECK: %Z = ashr exact i64 %Y, 16 | |
ret i64 %Z | |
; CHECK: ret i64 %Z | |
} | |