Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/pr68835-2.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/pr68835-2.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,23 @@ +/* PR tree-optimization/68835 */ +/* { dg-do run { target int128 } } */ +/* { dg-options "-O2" } */ + +__attribute__((noinline, noclone)) unsigned __int128 +foo (void) +{ + unsigned __int128 x = (unsigned __int128) 0xffffffffffffffffULL; + struct { unsigned __int128 a : 65; } w; + w.a = x; + w.a += x; + return w.a; +} + +int +main () +{ + unsigned __int128 x = foo (); + if ((unsigned long long) x != 0xfffffffffffffffeULL + || (unsigned long long) (x >> 64) != 1) + __builtin_abort (); + return 0; +}