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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-12 22:37:49 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-12 22:37:49 +0000 |
| commit | f203627f21614cbef9526aa791b3e7b0493d1e41 (patch) | |
| tree | f66cbc9f4b6f7c14577532d303267b0d4f04d0a6 /lib/CodeGen/LiveDebugVariables.cpp | |
| parent | ee547095bbf2c201029c0036ceeb49a66be37119 (diff) | |
| download | llvm-f203627f21614cbef9526aa791b3e7b0493d1e41.tar.gz llvm-f203627f21614cbef9526aa791b3e7b0493d1e41.tar.bz2 llvm-f203627f21614cbef9526aa791b3e7b0493d1e41.tar.xz | |
Sometimes, old virtual registers can linger on DBG_VALUE instructions.
Make sure we don't crash in that case, but simply turn them into %noreg instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123335 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveDebugVariables.cpp')
| -rw-r--r-- | lib/CodeGen/LiveDebugVariables.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveDebugVariables.cpp b/lib/CodeGen/LiveDebugVariables.cpp index 9a67a630b5..1e2dba29b9 100644 --- a/lib/CodeGen/LiveDebugVariables.cpp +++ b/lib/CodeGen/LiveDebugVariables.cpp @@ -565,7 +565,8 @@ UserValue::rewriteLocations(VirtRegMap &VRM, const TargetRegisterInfo &TRI) { !TargetRegisterInfo::isVirtualRegister(Loc.getReg())) continue; unsigned VirtReg = Loc.getReg(); - if (VRM.isAssignedReg(VirtReg)) { + if (VRM.isAssignedReg(VirtReg) && + TargetRegisterInfo::isPhysicalRegister(VRM.getPhys(VirtReg))) { Loc.substPhysReg(VRM.getPhys(VirtReg), TRI); } else if (VRM.getStackSlot(VirtReg) != VirtRegMap::NO_STACK_SLOT) { // FIXME: Translate SubIdx to a stackslot offset. |