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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-10-05 13:20:30 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-10-05 13:20:30 +0000 |
| commit | f609c0a303e4e20356d565d2bd4ecec76ed7ca7e (patch) | |
| tree | 54c0bb7502a67c26b1d40fafd979fd372eeaa7f5 /llvm/lib/CodeGen/BranchFolding.cpp | |
| parent | 375a84bb75a8d00ad1af4c679b8bc42553ef66e1 (diff) | |
| download | bcm5719-llvm-f609c0a303e4e20356d565d2bd4ecec76ed7ca7e.tar.gz bcm5719-llvm-f609c0a303e4e20356d565d2bd4ecec76ed7ca7e.zip | |
BranchFolding - IsBetterFallthrough - assert non-null pointers. NFCI.
Silences static analyzer null dereference warnings.
llvm-svn: 373823
Diffstat (limited to 'llvm/lib/CodeGen/BranchFolding.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/BranchFolding.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp index 6c997a73023..b0d1599a5eb 100644 --- a/llvm/lib/CodeGen/BranchFolding.cpp +++ b/llvm/lib/CodeGen/BranchFolding.cpp @@ -1307,6 +1307,8 @@ static bool IsBranchOnlyBlock(MachineBasicBlock *MBB) { /// result in infinite loops. static bool IsBetterFallthrough(MachineBasicBlock *MBB1, MachineBasicBlock *MBB2) { + assert(MBB1 && MBB2 && "Unknown MachineBasicBlock"); + // Right now, we use a simple heuristic. If MBB2 ends with a call, and // MBB1 doesn't, we prefer to fall through into MBB1. This allows us to // optimize branches that branch to either a return block or an assert block |
