// The order of statements must be preserved w.r.t. their ordered
// instructions. Without this explicit scan, we would also use non-ordered
// instructions (whose order is arbitrary) to determine statement order.
- for (Instruction &Inst : *BB) {
- if (!isOrderedInstruction(&Inst))
+ for (Instruction *Inst : ModeledInsts) {
+ if (!isOrderedInstruction(Inst))
continue;
- auto LeaderIt = UnionFind.findLeader(&Inst);
+ auto LeaderIt = UnionFind.findLeader(Inst);
if (LeaderIt == UnionFind.member_end())
continue;
// Collect the instructions of all leaders. UnionFind's member iterator
// unfortunately are not in any specific order.
- for (Instruction &Inst : *BB) {
- auto LeaderIt = UnionFind.findLeader(&Inst);
+ for (Instruction *Inst : ModeledInsts) {
+ auto LeaderIt = UnionFind.findLeader(Inst);
if (LeaderIt == UnionFind.member_end())
continue;
- if (&Inst == MainInst)
+ if (Inst == MainInst)
MainLeader = *LeaderIt;
std::vector<Instruction *> &InstList = LeaderToInstList[*LeaderIt];
- InstList.push_back(&Inst);
+ InstList.push_back(Inst);
}
// Finally build the statements.
--- /dev/null
+; RUN: opt %loadPolly -polly-scops -analyze < %s
+
+; The load is a required invariant load and at the same time used in a store.
+; Polly used to add two MemoryAccesses for it which caused an assertion to fail.
+; llvm.org/PR48059
+
+target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-windows-msvc19.27.29112"
+
+@b = external dso_local global i32, align 4
+@c = external dso_local global i32*, align 8
+@a = external dso_local local_unnamed_addr global i32**, align 8
+
+define void @func() {
+for.cond1.preheader.preheader:
+ br label %for.end12
+
+for.end12:
+ br i1 undef, label %for.end12.1, label %for.end12
+
+for.end12.1:
+ %0 = phi i32* [ %1, %for.end12.1 ], [ undef, %for.end12 ]
+ %storemerge26.1 = phi i32 [ %inc14.1, %for.end12.1 ], [ 0, %for.end12 ]
+ %1 = load i32*, i32** @c, align 8
+ store i32 0, i32* %1, align 4
+ %inc14.1 = add nuw nsw i32 %storemerge26.1, 1
+ %exitcond.1.not = icmp eq i32 %inc14.1, 35
+ br i1 %exitcond.1.not, label %for.inc16.1, label %for.end12.1
+
+for.inc16.1:
+ ret void
+}