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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2018-12-18 09:27:29 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2018-12-18 09:27:29 +0000 |
| commit | 1ac38ba73f6210993563803b460dd9fb4449ea41 (patch) | |
| tree | 405d1f45b19380712f46e986efa19830d534e6de /llvm/lib/CodeGen | |
| parent | e01e7c81f27b396dfa47d48dd82bb422402416f4 (diff) | |
| download | bcm5719-llvm-1ac38ba73f6210993563803b460dd9fb4449ea41.tar.gz bcm5719-llvm-1ac38ba73f6210993563803b460dd9fb4449ea41.zip | |
GlobalISel: Improve crash on invalid mapping
If NumBreakDowns is 0, BreakDown is null.
This trades a null dereference with an assert somewhere
else.
llvm-svn: 349464
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp b/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp index 6bb48dc2e8a..98df7d34857 100644 --- a/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp +++ b/llvm/lib/CodeGen/GlobalISel/RegBankSelect.cpp @@ -116,7 +116,7 @@ bool RegBankSelect::assignmentMatch( OnlyAssign = false; // Each part of a break down needs to end up in a different register. // In other word, Reg assignement does not match. - if (ValMapping.NumBreakDowns > 1) + if (ValMapping.NumBreakDowns != 1) return false; const RegisterBank *CurRegBank = RBI->getRegBank(Reg, *MRI, *TRI); |
