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| author | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-09-01 22:34:52 +0000 |
|---|---|---|
| committer | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-09-01 22:34:52 +0000 |
| commit | 6a099d439ea2e5ba708b88c4c095fe736329aae8 (patch) | |
| tree | 8fd34ca2d435cd61feedaa5a2da049b7670b269d /llvm/lib | |
| parent | a50cb6c8b9432140f2cdb8f09e08962d099d42a1 (diff) | |
| download | bcm5719-llvm-6a099d439ea2e5ba708b88c4c095fe736329aae8.tar.gz bcm5719-llvm-6a099d439ea2e5ba708b88c4c095fe736329aae8.zip | |
Give a better assertion if we see a use before a def.
llvm-svn: 16135
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/LiveVariables.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LiveVariables.cpp b/llvm/lib/CodeGen/LiveVariables.cpp index f6d00f702ac..630477d7b65 100644 --- a/llvm/lib/CodeGen/LiveVariables.cpp +++ b/llvm/lib/CodeGen/LiveVariables.cpp @@ -82,6 +82,8 @@ void LiveVariables::MarkVirtRegAliveInBlock(VarInfo &VRInfo, void LiveVariables::HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB, MachineInstr *MI) { + assert(VRInfo.DefInst && "Register use before def!"); + // Check to see if this basic block is already a kill block... if (!VRInfo.Kills.empty() && VRInfo.Kills.back()->getParent() == MBB) { // Yes, this register is killed in this basic block already. Increase the |
