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Fix math tests to allow ftz in relaxed mode. (#1371)

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* Fix math tests to allow ftz in relaxed mode.

In recent spec clarification, it is agreed that ftz is
a valid optimization in case of cl-fast-math-relaxed
and doesn't require cl-denorms-are-zero to be passed
explicitly to enforce ftz behavior for implementations
that already support this.

GitHub Spec Issue OpenCL-Docs#579
GitHub Spec Issue OpenCL-Docs#597
GitHub CTS Issue OpenCL-CTS#1267
This commit is contained in:
Nikhil Joshi
2022-07-05 22:28:18 +05:30
committed by GitHub
parent e3e1786761
commit 8d9d1f3e9d
24 changed files with 60 additions and 33 deletions
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4
test_conformance/math_brute_force/binary_float.cpp
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@@ -461,7 +461,7 @@ cl_int Test(cl_uint job_id, cl_uint thread_id, void *data)
{
// Calculate the correctly rounded reference result
memset(&oldMode, 0, sizeof(oldMode));
if (ftz) ForceFTZ(&oldMode);
if (ftz || relaxedMode) ForceFTZ(&oldMode);
// Set the rounding mode to match the device
if (gIsInRTZMode) oldRoundMode = set_round(kRoundTowardZero, kfloat);
@@ -546,7 +546,7 @@ cl_int Test(cl_uint job_id, cl_uint thread_id, void *data)
float err = Ulp_Error(test, correct);
int fail = !(fabsf(err) <= ulps);
if (fail && ftz)
if (fail && (ftz || relaxedMode))
{
// retry per section 6.5.3.2
if (IsFloatResultSubnormal(correct, ulps))