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| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/torture/float128-mul-underflow.c | |
| parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
| download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip | |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/torture/float128-mul-underflow.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/torture/float128-mul-underflow.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/float128-mul-underflow.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/float128-mul-underflow.c new file mode 100644 index 000000000..e3ebfffc9 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/float128-mul-underflow.c @@ -0,0 +1,21 @@ +/* Test __float128 multiplication uses after-rounding tininess + detection. */ + +/* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */ +/* { dg-options "" } */ +/* { dg-require-effective-target fenv_exceptions } */ + +#include <fenv.h> +#include <stdlib.h> + +int +main (void) +{ + volatile __float128 a = 0x1.fffffffffffffffp-16382q, b = 0x1.0000000000000008p-1q, c; + c = a * b; + if (fetestexcept (FE_UNDERFLOW)) + abort (); + if (c != 0x1p-16382q) + abort (); + exit (0); +} |