diff --git a/fail_db.txt b/fail_db.txt
index ddd57b69..52d2bc7c 100644
--- a/fail_db.txt
+++ b/fail_db.txt
@@ -205,3 +205,20 @@
 ./tests/short-circuit-7.ispc runfail  x86-64 avx512knl-i32x16     Mac LLVM 3.7 clang++3.7 -O0 *
 ./tests/short-circuit-8.ispc runfail  x86-64 avx512knl-i32x16     Mac LLVM 3.7 clang++3.7 -O0 *
 ./tests/short-circuit-9.ispc runfail  x86-64 avx512knl-i32x16     Mac LLVM 3.7 clang++3.7 -O0 *
+.\tests\acos.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\asin.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\memcpy-varying.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\operators2.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\packed-store-1.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\packed-store2-1.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\short-circuit-14.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\short-circuit-15.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O2 *
+.\tests\acos.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\asin.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-14.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-15.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-5.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-6.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-7.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-8.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *
+.\tests\short-circuit-9.ispc runfail  x86-64 avx512knl-i32x16 Windows LLVM 3.7         cl -O0 *