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| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-05-20 14:34:03 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-05-20 14:34:03 +0000 |
| commit | ce6f3bdee4bb280aefb13263257f5b9b8d92f183 (patch) | |
| tree | 84a9e35c325233e1865f634ee0fe40542c29470a /llvm/lib/CodeGen/RegisterScavenging.cpp | |
| parent | 70b1eee793e751c3a0b1084347e6645bced90da2 (diff) | |
| download | bcm5719-llvm-ce6f3bdee4bb280aefb13263257f5b9b8d92f183.tar.gz bcm5719-llvm-ce6f3bdee4bb280aefb13263257f5b9b8d92f183.zip | |
Correction to r270219: fix detection of invalid frame index
llvm-svn: 270220
Diffstat (limited to 'llvm/lib/CodeGen/RegisterScavenging.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/RegisterScavenging.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegisterScavenging.cpp b/llvm/lib/CodeGen/RegisterScavenging.cpp index 2cd5233f593..34302a0cac6 100644 --- a/llvm/lib/CodeGen/RegisterScavenging.cpp +++ b/llvm/lib/CodeGen/RegisterScavenging.cpp @@ -438,7 +438,8 @@ unsigned RegScavenger::scavengeRegister(const TargetRegisterClass *RC, // otherwise, use the emergency stack spill slot. if (!TRI->saveScavengerRegister(*MBB, I, UseMI, RC, SReg)) { // Spill the scavenged register before I. - if (Scavenged[SI].FrameIndex < 0) { + int FI = Scavenged[SI].FrameIndex; + if (FI < FIB || FI >= FIE) { Twine Msg = Twine("Error while trying to spill ") + TRI->getName(SReg) + " from class " + TRI->getRegClassName(RC) + ": Cannot scavenge register without an emergency spill slot!"; |
