[StackSafety,NFC] Replace map with vector
authorVitaly Buka <vitalybuka@google.com>
Fri, 19 Jun 2020 01:17:59 +0000 (18:17 -0700)
committerVitaly Buka <vitalybuka@google.com>
Fri, 19 Jun 2020 09:32:17 +0000 (02:32 -0700)
commit20b1094a04a01c3f3b7c9edd071be8a30945af11
treeb9faf587d825d3d838117cf524fb849270bf1486
parent7b27c09f63526ebfd974ce4e29ef3d26ef6ab686
[StackSafety,NFC] Replace map with vector

We don't need to lookup InstructionNumbering by number, so
we can use vector with index as assigned number.
llvm/include/llvm/Analysis/StackLifetime.h
llvm/lib/Analysis/StackLifetime.cpp