[Bug target/54517] New: wrong inlining of builtin_shuffle on ARM/big-endian

[christophe.lyon at st dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54517

             Bug #: 54517
           Summary: wrong inlining of builtin_shuffle on ARM/big-endian
    Classification: Unclassified
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: christophe.lyon@st.com


Created attachment 28146
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28146
testcase

As exposed by the attached sample code, GCC for ARM/big-endian produces
incorrect code when inlining functions performing builtin_shuffle.

Compile the attached program at -O2 with GCC configured for
armeb-none-linux-gnueabi) and execute it with qemu-armeb, it should be OK.

Then edit the source code such that NOINLINE now expands into the empty string:
#define NOINLINE, re-compile & execute: the code aborts.