Pushed, thank you for your contribution, Claudiu On Tue, Apr 2, 2019 at 9:27 PM Vineet Gupta <vineet.gup...@synopsys.com> wrote: > > simple test such as below was failing. > > | void main(int argc, char *argv[]) > | { > | size_t total_time = 115424; // expected 115.424 > | double secs = (double)total_time/(double)1000; > | printf("%s %d %lf\n", "secs", total_time, secs); // prints 113.504 > | printf("%d\n", (size_t)secs); > | } > > The printf eventually called into glibc stdlib/divrem.c:__mpn_divrem() > which uses the __arc__ specific inline asm macros from longlong.h which > were causing miscompilation. > > include/ > 2019-03-28 Vineet Gupta <vgu...@synopsys.com> > > PR 89877 > > * longlong.h [__arc__] (add_ssaaaa): Add cc clobber > (sub_ddmmss): Likewise. > > Signed-off-by: Vineet Gupta <vgu...@synopsys.com> > --- > include/ChangeLog | 7 +++++++ > include/longlong.h | 6 ++++-- > 2 files changed, 11 insertions(+), 2 deletions(-) > > diff --git a/include/ChangeLog b/include/ChangeLog > index be08141deeb9..96d967d10a52 100644 > --- a/include/ChangeLog > +++ b/include/ChangeLog > @@ -1,3 +1,10 @@ > +2019-03-28 Vineet Gupta <vgu...@synopsys.com> > + > + PR 89877 > + > + * longlong.h [__arc__] (add_ssaaaa): Add cc clobber > + (sub_ddmmss): Likewise. > + > 2019-02-11 Philippe Waroquiers <philippe.waroqui...@skynet.be> > > * splay-tree.h (splay_tree_delete_key_fn): Update comment. > diff --git a/include/longlong.h b/include/longlong.h > index 3dd8dc3aa80c..1f0ce4204255 100644 > --- a/include/longlong.h > +++ b/include/longlong.h > @@ -199,7 +199,8 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, > UDItype); > : "%r" ((USItype) (ah)), \ > "rICal" ((USItype) (bh)), \ > "%r" ((USItype) (al)), \ > - "rICal" ((USItype) (bl))) > + "rICal" ((USItype) (bl)) \ > + : "cc") > #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ > __asm__ ("sub.f %1, %4, %5\n\tsbc %0, %2, %3" \ > : "=r" ((USItype) (sh)), \ > @@ -207,7 +208,8 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, > UDItype); > : "r" ((USItype) (ah)), \ > "rICal" ((USItype) (bh)), \ > "r" ((USItype) (al)), \ > - "rICal" ((USItype) (bl))) > + "rICal" ((USItype) (bl)) \ > + : "cc") > > #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v) > #ifdef __ARC_NORM__ > -- > 2.7.4 >
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