It's (currently) not safe to keep certain physical registers live across basic blocks...
authorEvan Cheng <evan.cheng@apple.com>
Thu, 12 Feb 2009 10:32:17 +0000 (10:32 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Thu, 12 Feb 2009 10:32:17 +0000 (10:32 +0000)
commit8679119f4b686d141462bf6d18f4ae0eb0bd0841
tree6287723ba54427eca5dc73f99cbcbb93a112f1da
parentf2b14715d11e52adbb17a5860d1ce42f82f85a0c
It's (currently) not safe to keep certain physical registers live across basic blocks, e.g. x86 fp stack registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64374 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/VirtRegMap.cpp
test/CodeGen/X86/2009-02-12-SpillerBug.ll [new file with mode: 0644]