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[Bug libc/18787] [hppa] sysdeps/unix/sysv/linux/hppa/bits/atomic.h:71:6: error: canât find a register in class âR1_REGSâ while reloading âasmâ


https://sourceware.org/bugzilla/show_bug.cgi?id=18787

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=74bc0c3a16e3c8f138e29a284e84d16474b65a8e

commit 74bc0c3a16e3c8f138e29a284e84d16474b65a8e
Author: John David Anglin <dave.anglin@bell.net>
Date:   Fri Aug 7 13:37:35 2015 -0400

    hppa: Fix reload error with atomic code [BZ #18787]

    As noted in the bug, the asm operands need to be copied to register
    variables to avoid operand reloads in the principal asm of the macro.
    See the arm implementation for reference.  Otherwise we get:
    ../sysdeps/unix/sysv/linux/hppa/bits/atomic.h:68:6: error:
        can't find a register in class 'R1_REGS' while reloading 'asm'

    Build tested on trunk with gcc-4.8.  Similar patch has been tested
    with 2.19 on Debian hppa-unknown-linux-gnu.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                  |    9 +++++++
 NEWS                                       |    2 +-
 sysdeps/unix/sysv/linux/hppa/bits/atomic.h |   35 +++++++++++++--------------
 3 files changed, 27 insertions(+), 19 deletions(-)

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