Enable checked builds of CoreCLR.

In checked builds coreclr, mscorlib, and the test are built optimized
but assertion checking is on. This adds additional coverage (the jit is
optimizing and assertion checking is on), speeds up testing compared to debug,
and allows testing JIT stress modes.

This doesn't affect CoreFX.

Several tests are currently failing in checked configuration due to newly
discovered  bugs (JIT asserts). We didn't see these asserts in debug mode
because by default JIT is in minopt mode; we didn't see these bugs in release
mode because assertion checking is off. I will file the bugs once checked build
changes are in.

1 files changed, 2 insertions, 1 deletions

diff --git a/build.cmd b/build.cmd
index 88e5194bd2..55932be1fb 100644
--- a/build.cmd
+++ b/build.cmd
@@ -35,6 +35,7 @@ if /i "%1" == "arm64"    (set __BuildArch=arm64&&shift&goto Arg_Loop)
 
 if /i "%1" == "debug"    (set __BuildType=Debug&shift&goto Arg_Loop)
 if /i "%1" == "release"   (set __BuildType=Release&shift&goto Arg_Loop)
+if /i "%1" == "checked"    (set __BuildType=Checked&shift&goto Arg_Loop)
 
 if /i "%1" == "clean"   (set __CleanBuild=1&shift&goto Arg_Loop)
 
@@ -292,7 +293,7 @@ echo Usage:
 echo %0 BuildArch BuildType [clean] [vsversion] where:
 echo.
 echo BuildArch can be: x64, x86, arm64
-echo BuildType can be: Debug, Release
+echo BuildType can be: Debug, Release, Checked
 echo Clean - optional argument to force a clean build.
 echo VSVersion - optional argument to use VS2013 or VS2015 (default VS2015)
 echo windowsmscorlib - Build mscorlib for Windows