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| author | Dominic Chen <d.c.ddcc@gmail.com> | 2016-08-12 23:12:59 +0000 |
|---|---|---|
| committer | Dominic Chen <d.c.ddcc@gmail.com> | 2016-08-12 23:12:59 +0000 |
| commit | 2868fa171a35ebe9b8f4462004ed1bf359b86dba (patch) | |
| tree | 46e543be0c805400d0c05e3341889d0e20642468 /llvm/lib/CodeGen/BranchFolding.cpp | |
| parent | c9c0d2dcb5ff88916290deb5d413435ac1ac3bc6 (diff) | |
| download | bcm5719-llvm-2868fa171a35ebe9b8f4462004ed1bf359b86dba.tar.gz bcm5719-llvm-2868fa171a35ebe9b8f4462004ed1bf359b86dba.zip | |
Avoid accessing LLVM/DWARF register mappings if undefined
Summary:
If the backend does not define LLVM/DWARF register mappings, the associated
variables are undefined since the map initializer is called by auto-generated
TableGen routines. This patch initializes the pointers and sizes to nullptr
and zero, respectively, and checks that they are valid before searching
for a mapping.
Reviewers: grosbach, dschuff
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D23458
llvm-svn: 278574
Diffstat (limited to 'llvm/lib/CodeGen/BranchFolding.cpp')
0 files changed, 0 insertions, 0 deletions
