[Bug target/70830] [6/7 Regression] ARM interrupt attribute: push/pop do not support {reglist}^

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70830

--- Comment #5 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Thu May 12 09:56:46 2016
New Revision: 236169

URL: https://gcc.gnu.org/viewcvs?rev=236169&root=gcc&view=rev
Log:
[ARM] PR target/70830: Avoid POP-{reglist}^ when returning from interrupt
handlers

        PR target/70830
        * config/arm/arm.c (arm_output_multireg_pop): Avoid POP instruction
        when popping the PC and within an interrupt handler routine.
        Add missing tab to output of "ldmfd".
        (output_return_instruction): Output LDMFD with SP update rather
        than POP when returning from interrupt handler.

        * gcc.target/arm/interrupt-1.c: Change dg-compile to dg-assemble.
        Add -save-temps to dg-options.
        Scan for ldmfd rather than pop instruction.
        * gcc.target/arm/interrupt-2.c: Likewise.
        * gcc.target/arm/pr70830.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/arm/pr70830.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/arm/interrupt-1.c
    trunk/gcc/testsuite/gcc.target/arm/interrupt-2.c