diff options
| -rw-r--r-- | test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll b/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll index 911a73f..97020c5 100644 --- a/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll +++ b/test/Transforms/InstCombine/2004-02-23-ShiftShiftOverflow.ll @@ -6,3 +6,10 @@ int %test(int %X) { %Z = shr int %Y, ubyte 17 ret int %Z } + +int %test2(int %X) { + ; Do not fold into shl X, 34, as this uses undefined behavior! + %Y = shl int %X, ubyte 17 + %Z = shl int %Y, ubyte 17 + ret int %Z +} |