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[CFLAA] Check for pointer types in more places.

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This patch fixes an assertion that fires when we try to add non-pointer
Values to the CFLGraph. Centralizing the check for whether something
is/isn't a pointer type isn't completely trivial (and, in some cases,
would end up being entirely redundant), but it may be beneficial to do
so if this trips us up more in the future.

Patch by Jia Chen.

Differential Revision: https://reviews.llvm.org/D22947

llvm-svn: 277096
This commit is contained in:
George Burgess IV 2016-07-29 01:23:45 +00:00
parent aef9df0c15
commit 1421f18abe
1 changed files with 4 additions and 2 deletions
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6
lib/Analysis/CFLGraph.h
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@ -334,7 +334,8 @@ template <typename CFLAA> class CFLGraphBuilder {
// For now, we'll handle this like a landingpad instruction (by placing
// the
// result in its own group, and having that group alias externals).
addNode(&Inst, getAttrUnknown());
if (Inst.getType()->isPointerTy())
addNode(&Inst, getAttrUnknown());
}
static bool isFunctionExternal(Function *Fn) {
@ -457,7 +458,8 @@ template <typename CFLAA> class CFLGraphBuilder {
// Exceptions come from "nowhere", from our analysis' perspective.
// So we place the instruction its own group, noting that said group may
// alias externals
addNode(&Inst, getAttrUnknown());
if (Inst.getType()->isPointerTy())
addNode(&Inst, getAttrUnknown());
}
void visitInsertValueInst(InsertValueInst &Inst) {