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| author | Devang Patel <dpatel@apple.com> | 2011-07-07 17:45:33 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2011-07-07 17:45:33 +0000 |
| commit | 9194c6716be13e2b8d2cf8e45273bf6c79f8b32c (patch) | |
| tree | eb182bdc7d5545640792718deae50f5cdda26fed /lib/CodeGen/MachineInstr.cpp | |
| parent | f86b76ead71649c58d34e625416008b4fec95eb8 (diff) | |
If known DebugLocs do not match then two DBG_VALUE machine instructions are not identical. For example,
DBG_VALUE 3.310000e+02, 0, !"ds"; dbg:sse.stepfft.c:138:18 @[ sse.stepfft.c:32:10 ]
DBG_VALUE 3.310000e+02, 0, !"ds"; dbg:sse.stepfft.c:138:18 @[ sse.stepfft.c:31:10 ]
These two MIs represent identical value, 3.31..., for one variable, ds, but they are not identical because the represent two separate instances of inlined variable "ds".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134620 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
| -rw-r--r-- | lib/CodeGen/MachineInstr.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp index f490713e72..143a29b08a 100644 --- a/lib/CodeGen/MachineInstr.cpp +++ b/lib/CodeGen/MachineInstr.cpp @@ -802,6 +802,11 @@ bool MachineInstr::isIdenticalTo(const MachineInstr *Other, return false; } } + // If DebugLoc does not match then two dbg.values are not identical. + if (isDebugValue()) + if (!getDebugLoc().isUnknown() && !Other->getDebugLoc().isUnknown() + && getDebugLoc() != Other->getDebugLoc()) + return false; return true; } |