[Piglit] [PATCH 1/3] CL: Fix up erfc tests

[Aaron Watry]

erfc(1.960/sqrt(2.0)) was completely wrong. It expected 0.95, but the
actual result should be ~0.05.

Also updated: erfc(2.576/sqrt(2.0)) for more precision in expected result

Tested with clover/libclc on PITCAIRN and Beignet on haswell.

This prevents regressions if/when the piglit ULP calculation is ever fixed.

Signed-off-by: Aaron Watry <awatry at gmail.com>
---
 generated_tests/gen_cl_math_builtins.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/generated_tests/gen_cl_math_builtins.py b/generated_tests/gen_cl_math_builtins.py
index 29b4e1a..a14d97b 100644
--- a/generated_tests/gen_cl_math_builtins.py
+++ b/generated_tests/gen_cl_math_builtins.py
@@ -252,8 +252,8 @@ tests = {
         'arg_types' : [F, F],
         'function_type': 'ttt',
         'values' : [
-            [1.0, 0.95, 0.009995, 1.994999, 0.0, 0.0, 2.0], # Result
-            [0.0, 1.960/sqrt(2.0), 2.576/sqrt(2.0), -2.807/sqrt(2.0), 11.1, float("inf"), float("-inf")]  # Arg0
+            [1.0, 0.049995790296440745, 0.0099950646314, 1.994999, 0.0, 0.0, 2.0], # Result
+            [0.0, 1.960/sqrt(2.0),      2.576/sqrt(2.0), -2.807/sqrt(2.0), 11.1, float("inf"), float("-inf")]  # Arg0
         ],
         'tolerance' : 16
     },
-- 
2.9.3