CodeGen: Assert that inlined-at locations agree

As a follow-up to r234021, assert that a debug info intrinsic variable's
`MDLocalVariable::getInlinedAt()` always matches the
`MDLocation::getInlinedAt()` of its `!dbg` attachment.

The goal here is to get rid of `MDLocalVariable::getInlinedAt()`
entirely (PR22778), but I'll let these assertions bake for a while
first.

If you have an out-of-tree backend that just broke, you're probably
attaching the wrong `DebugLoc` to a `DBG_VALUE` instruction.  The one
you want is the location that was attached to the corresponding
`@llvm.dbg.declare` or `@llvm.dbg.value` call that you started with.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234038 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-04-03 19:20:26 +00:00
parent 36ae857dc6
commit f4f021c0a4
14 changed files with 63 additions and 35 deletions

View File

@ -1587,6 +1587,14 @@ public:
Metadata *getRawInlinedAt() const { return getOperand(4); }
/// \brief Check that a location is valid for this variable.
///
/// Check that \c DL has the same inlined-at location as this variable,
/// making them valid for the same \a DbgInfoIntrinsic.
bool isValidLocationForIntrinsic(const MDLocation *DL) const {
return getInlinedAt() == (DL ? DL->getInlinedAt() : nullptr);
}
/// \brief Get an inlined version of this variable.
///
/// Returns a version of this with \a getAlinedAt() set to \c InlinedAt.