From c624b5a049c688b6ac5fad903699dc1af0df17e9 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 28 Apr 2006 22:17:20 +0000 Subject: [PATCH] new testcase miscompiled by instcombine git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28018 91177308-0d34-0410-b5e6-96231b3b80d8 --- .../InstCombine/2006-04-28-ShiftShiftLongLong.ll | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll diff --git a/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll b/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll new file mode 100644 index 00000000000..7a164ddf4dc --- /dev/null +++ b/test/Transforms/InstCombine/2006-04-28-ShiftShiftLongLong.ll @@ -0,0 +1,10 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep shl && +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep cast + +; This cannot be turned into a sign extending cast! + +long %test(long %X) { + %Y = shl long %X, ubyte 16 + %Z = shr long %Y, ubyte 16 + ret long %Z +} -- 2.34.1