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CodeGen: Assert that inlined-at locations agree

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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
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6
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -5899,6 +5899,8 @@ SDNode *SelectionDAG::getNodeIfExists(unsigned Opcode, SDVTList VTList,
SDDbgValue *SelectionDAG::getDbgValue(MDNode *Var, MDNode *Expr, SDNode *N,
unsigned R, bool IsIndirect, uint64_t Off,
DebugLoc DL, unsigned O) {
assert(DIVariable(Var)->isValidLocationForIntrinsic(DL) &&
"Expected inlined-at fields to agree");
return new (Allocator) SDDbgValue(Var, Expr, N, R, IsIndirect, Off, DL, O);
}
@ -5906,6 +5908,8 @@ SDDbgValue *SelectionDAG::getDbgValue(MDNode *Var, MDNode *Expr, SDNode *N,
SDDbgValue *SelectionDAG::getConstantDbgValue(MDNode *Var, MDNode *Expr,
const Value *C, uint64_t Off,
DebugLoc DL, unsigned O) {
assert(DIVariable(Var)->isValidLocationForIntrinsic(DL) &&
"Expected inlined-at fields to agree");
return new (Allocator) SDDbgValue(Var, Expr, C, Off, DL, O);
}
@ -5913,6 +5917,8 @@ SDDbgValue *SelectionDAG::getConstantDbgValue(MDNode *Var, MDNode *Expr,
SDDbgValue *SelectionDAG::getFrameIndexDbgValue(MDNode *Var, MDNode *Expr,
unsigned FI, uint64_t Off,
DebugLoc DL, unsigned O) {
assert(DIVariable(Var)->isValidLocationForIntrinsic(DL) &&
"Expected inlined-at fields to agree");
return new (Allocator) SDDbgValue(Var, Expr, FI, Off, DL, O);
}