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authorRichard Henderson <rth@twiddle.net>2014-07-08 10:14:09 -0700
committerRichard Henderson <rth@twiddle.net>2015-05-18 13:03:47 -0700
commit4ed069ab5334a495b49d0704795524fa34e8dbfc (patch)
tree9b8a95a1f21e913c01269d05f208fbe6d6880120
parentb99e80694cc635aa6ed5a3716e89645a8afa261c (diff)
target-alpha: Suppress underflow from CVTTQ if DNZ
I.e. respect flush_inputs_to_zero. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--target-alpha/fpu_helper.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target-alpha/fpu_helper.c b/target-alpha/fpu_helper.c
index ea1f2e22b9..fa4401d4d6 100644
--- a/target-alpha/fpu_helper.c
+++ b/target-alpha/fpu_helper.c
@@ -452,7 +452,7 @@ static uint64_t do_cvttq(CPUAlphaState *env, uint64_t a, int roundmode)
frac = a & 0xfffffffffffffull;
if (exp == 0) {
- if (unlikely(frac != 0)) {
+ if (unlikely(frac != 0) && !env->fp_status.flush_inputs_to_zero) {
goto do_underflow;
}
} else if (exp == 0x7ff) {