> 2013-07-05 Jakub Jelinek
>
> PR rtl-optimization/57829
> * simplify-rtx.c (simplify_binary_operation_1) : Ensure that
> mask bits outside of mode are just sign-extension from mode to HWI.
>
> * gcc.c-torture/execute/pr57829.c: New test.
OK everywhere, thanks.
--
Er
Hi!
This code dates back to 1994, and as the testcase shows, is broken
if mask contains some bits outside of mode (as ASHIFTRT is signed,
I think it is fine if it is sign extended from mode to the HWI).
On this particular testcase, mode is SImode, trueop1 is (const_int 2),
count is 31, so we get
