[Bug target/91816] [8/9 Regression] Arm generates out of range conditional branches in Thumb2

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91816

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Stam Markianos-Wright
<stamm...@gcc.gnu.org>:

https://gcc.gnu.org/g:6b7ab0e565d79a7e6ae5dbbf17a5eb4eafe56dc8

commit r9-9081-g6b7ab0e565d79a7e6ae5dbbf17a5eb4eafe56dc8
Author: Stam Markianos-Wright <stam.markianos-wri...@arm.com>
Date:   Mon Nov 30 11:05:30 2020 +0000

    Backport of the patch for PR target/91816

    This is a patch for an issue where the compiler was generating a
    conditional branch in Thumb2, which was too far for b{cond} to handle.

    This backport also includes the subsequent fixes to the test in this
    patch.

    gcc/ChangeLog

            * config/arm/arm-protos.h: New function arm_gen_far_branch
prototype.
            * config/arm/arm.c (arm_gen_far_branch): New function
            arm_gen_far_branch.
            * config/arm/arm.md: Update b<cond> for Thumb2 range checks.

    gcc/testsuite/ChangeLog

            * gcc.target/arm/pr91816.c: New test.