llvm-6502/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll
2009-10-12 06:14:06 +00:00

14 lines
345 B
LLVM

; RUN: opt < %s -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 i64 %Y, 16
ret i64 %Z
; CHECK: ret i64 %Z
}