[Bug middle-end/57134] New: ICE with -mstrict-align and inline assembly on ppc64

[anton at samba dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57134



             Bug #: 57134

           Summary: ICE with -mstrict-align and inline assembly on ppc64

    Classification: Unclassified

           Product: gcc

           Version: 4.9.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: middle-end

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: an...@samba.org





Created attachment 29987

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29987

Testcase that ICE's with -mstrict-align on ppc64



The following testcase passes on a ppc64 4.7.2 build but fails on a 4.9.0

20130501 build:



# gcc -m64 -O2 -S -mstrict-align testcase.c



testcase.c: In function 'rb_remove_pages':

testcase.c:16:2: internal compiler error: in expand_asm_operands, at stmt.c:910

  __asm__ __volatile__("# %0,%1" : "=r"(t) : "m"(v->counter));

  ^

0x10604437 expand_asm_operands

        ../../gcc/gcc/stmt.c:910

0x10604b3b expand_asm_stmt(gimple_statement_d*)

        ../../gcc/gcc/stmt.c:1151

0x1022f357 expand_gimple_stmt_1

        ../../gcc/gcc/cfgexpand.c:2154

0x1022f357 expand_gimple_stmt

        ../../gcc/gcc/cfgexpand.c:2309

0x10230b77 expand_gimple_basic_block

        ../../gcc/gcc/cfgexpand.c:4143

0x10233f7b gimple_expand_cfg

        ../../gcc/gcc/cfgexpand.c:4662

Please submit a full bug report,