[Bug middle-end/34621] [4.3 Regression] gcc.c-torture/execute/va-arg-25.c:32: internal compiler error: in expand_call, at calls.c:2785

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2008-01-21 20:53 -------
And, on these testcases that patch hasn't changed bad code generation into ICE,
but good code generation into ICE, at least as far as I can eyeball the
assembly,
e.g. on the #c5 testcase with -Os and STACK_BOUNDARY redefinition in
config/i386/darwin.h commented out I get:
        .text
.globl _bar
_bar:
        pushl   %ebp
        movl    %esp, %ebp
        subl    $36, %esp
        movaps  _v, %xmm0
        movaps  %xmm0, 12(%esp)
        movaps  %xmm0, %xmm2
        pushl   $1
        movaps  %xmm0, %xmm1
        call    _foo
        addl    $32, %esp
        leave
        ret
.comm _v,16,4
        .subsections_via_symbols
which keeps the right stack alignment and passes the args in correct locations.
So this is clearly a regression.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34621