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* gcc.dg/990130-1.c: New test.

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From-SVN: r24917
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Jeffrey A Law 1999-01-30 10:13:37 +00:00 • committed by Jeff Law
parent 9eab30bcdc
commit 763c44454c
2 changed files with 28 additions and 0 deletions
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4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
Sat Jan 30 11:10:06 1999 Jeffrey A Law (law@cygnus.com)
* gcc.dg/990130-1.c: New test.
Sun Jan 17 00:02:33 1999 Jeffrey A Law (law@cygnus.com)
* gcc.dg/990117-1.c: New test.

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gcc/testsuite/gcc.dg/990130-1.c Normal file
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/* { dg-do compile { target i?86-*-* } } */
/* { dg-options -O0 } */
typedef int SItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
struct DIstruct {SItype low, high;};
typedef union
{
struct DIstruct s;
DItype ll;
} DIunion;
DItype
__muldi3 (DItype u, DItype v)
{
DIunion w;
DIunion uu, vv;
uu.ll = u,
vv.ll = v;
w.ll = ({DIunion __w; __asm__ ("mull %3" : "=a" ((USItype) ( __w.s.low )), "=d" ((USItype) ( __w.s.high )) : "%0" ((USItype) ( uu.s.low )), "rm" ((USItype) ( vv.s.low ))) ; __w.ll; }) ;
w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
+ (USItype) uu.s.high * (USItype) vv.s.low);
return w.ll;
}