[Bug target/87511] [9 Regression][AArch64] UBFIZ instruction with invalid immediate emitted

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87511

--- Comment #3 from Wilco <wilco at gcc dot gnu.org> ---
Author: wilco
Date: Tue Oct 16 12:26:00 2018
New Revision: 265191

URL: https://gcc.gnu.org/viewcvs?rev=265191&root=gcc&view=rev
Log:
[AArch64] Fix PR87511

As mentioned in PR87511, the shift used in aarch64_mask_and_shift_for_ubfiz_p
should be evaluated as a HOST_WIDE_INT rather than int.

Backported from mainline

    gcc/
        PR target/87511
        * config/aarch64/aarch64.c (aarch64_mask_and_shift_for_ubfiz_p):
        Use HOST_WIDE_INT_1U for shift.

    testsuite/
        PR target/87511
        * gcc.target/aarch64/pr87511.c: Add new test.

Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/config/aarch64/aarch64.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog