[PATCH] D110751: [DomTree] Assert that blocks in queries aren't from another function
Daniil Suchkov via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 30 12:23:10 PDT 2021
DaniilSuchkov updated this revision to Diff 376325.
DaniilSuchkov added a comment.
That was wrong diff.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D110751/new/
https://reviews.llvm.org/D110751
Files:
llvm/include/llvm/Support/GenericDomTree.h
llvm/test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-invariant-select-bug.ll
Index: llvm/test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-invariant-select-bug.ll
===================================================================
--- llvm/test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-invariant-select-bug.ll
+++ llvm/test/Transforms/SimpleLoopUnswitch/nontrivial-unswitch-invariant-select-bug.ll
@@ -1,34 +1,15 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -passes='simple-loop-unswitch<nontrivial>' -S < %s | FileCheck %s
+; REQUIRES: asserts
+; XFAIL: *
+; RUN: opt -passes='simple-loop-unswitch<nontrivial>' -S < %s -disable-output
-; FIXME: We should not replace `true` with `false` here!
+; If we try to replace uses of `true` outside of `@foo`, we'll see it here.
define i1 @bar() {
-; CHECK-LABEL: @bar(
-; CHECK-NEXT: ret i1 false
-;
ret i1 true
}
-; FIXME: We shouldn't unswitch this loop!
+; We shouldn't unswitch this loop.
define void @foo() {
-; CHECK-LABEL: @foo(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: br i1 true, label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]]
-; CHECK: entry.split.us:
-; CHECK-NEXT: br label [[HEADER_US:%.*]]
-; CHECK: header.us:
-; CHECK-NEXT: [[VAL_US:%.*]] = select i1 true, i1 true, i1 false
-; CHECK-NEXT: br label [[EXIT_SPLIT_US:%.*]]
-; CHECK: exit.split.us:
-; CHECK-NEXT: br label [[EXIT:%.*]]
-; CHECK: entry.split:
-; CHECK-NEXT: br label [[HEADER:%.*]]
-; CHECK: header:
-; CHECK-NEXT: [[VAL:%.*]] = select i1 false, i1 false, i1 false
-; CHECK-NEXT: br label [[HEADER]]
-; CHECK: exit:
-; CHECK-NEXT: ret void
-;
entry:
br label %header
Index: llvm/include/llvm/Support/GenericDomTree.h
===================================================================
--- llvm/include/llvm/Support/GenericDomTree.h
+++ llvm/include/llvm/Support/GenericDomTree.h
@@ -349,6 +349,9 @@
/// may (but is not required to) be null for a forward (backwards)
/// statically unreachable block.
DomTreeNodeBase<NodeT> *getNode(const NodeT *BB) const {
+ assert((!BB || !BB->getParent() || BB->getParent() == Parent) &&
+ "A node from another function!");
+
auto I = DomTreeNodes.find(BB);
if (I != DomTreeNodes.end())
return I->second.get();
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