[llvm-mca] Fixed a problem caused by an invalid use of a processor resource mask in the Scheduler.

The lambda functions used by method ResourceManager::mustIssueImmediately() was
incorrectly truncating masks of buffered processor resources to 32-bit quantities.
The invalid mask values were then used to access a map of processor
resource descriptors.

Fixes PR37643.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333692 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed