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-rw-r--r--polly/lib/Support/SCEVValidator.cpp9
-rw-r--r--polly/test/ScopInfo/scop-affine-parameter-ordering.ll39
2 files changed, 43 insertions, 5 deletions
diff --git a/polly/lib/Support/SCEVValidator.cpp b/polly/lib/Support/SCEVValidator.cpp
index 9d138dd3a4e..7d35d9e950d 100644
--- a/polly/lib/Support/SCEVValidator.cpp
+++ b/polly/lib/Support/SCEVValidator.cpp
@@ -577,12 +577,10 @@ ParameterSetTy getParamsInAffineExpr(const Region *R, Loop *Scope,
std::pair<const SCEVConstant *, const SCEV *>
extractConstantFactor(const SCEV *S, ScalarEvolution &SE) {
-
- auto *LeftOver = SE.getConstant(S->getType(), 1);
auto *ConstPart = cast<SCEVConstant>(SE.getConstant(S->getType(), 1));
if (auto *Constant = dyn_cast<SCEVConstant>(S))
- return std::make_pair(Constant, LeftOver);
+ return std::make_pair(Constant, SE.getConstant(S->getType(), 1));
auto *AddRec = dyn_cast<SCEVAddRecExpr>(S);
if (AddRec) {
@@ -627,12 +625,13 @@ extractConstantFactor(const SCEV *S, ScalarEvolution &SE) {
if (!Mul)
return std::make_pair(ConstPart, S);
+ SmallVector<const SCEV *, 4> LeftOvers;
for (auto *Op : Mul->operands())
if (isa<SCEVConstant>(Op))
ConstPart = cast<SCEVConstant>(SE.getMulExpr(ConstPart, Op));
else
- LeftOver = SE.getMulExpr(LeftOver, Op);
+ LeftOvers.push_back(Op);
- return std::make_pair(ConstPart, LeftOver);
+ return std::make_pair(ConstPart, SE.getMulExpr(LeftOvers));
}
} // namespace polly
diff --git a/polly/test/ScopInfo/scop-affine-parameter-ordering.ll b/polly/test/ScopInfo/scop-affine-parameter-ordering.ll
new file mode 100644
index 00000000000..da9f8656e57
--- /dev/null
+++ b/polly/test/ScopInfo/scop-affine-parameter-ordering.ll
@@ -0,0 +1,39 @@
+; RUN: opt -polly-process-unprofitable -polly-scops %s -analyze | FileCheck %s
+target datalayout = "e-m:e-i64:64-i128:128-n8:16:32:64-S128"
+target triple = "aarch64--linux-android"
+
+; Check for SCOP:
+; CHECK: Stmt_for_body8_us_us95_i
+; CHECK-NEXT: Domain :=
+; CHECK-NEXT: [p_0] -> { Stmt_for_body8_us_us95_i[i0] : 0 <= i0 <= 4 };
+; CHECK-NEXT: Schedule :=
+; CHECK-NEXT: [p_0] -> { Stmt_for_body8_us_us95_i[i0] -> [i0] };
+; CHECK-NEXT; MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
+; CHECK-NEXT; [p_0] -> { Stmt_for_body8_us_us95_i[i0] -> MemRef_0[1 + p_0] };
+; CHECK-NEXT }
+
+define void @test1() unnamed_addr align 2 {
+entry:
+ %xFactor.0.reload = load i32, i32* undef
+ %0 = load i8*, i8** undef, align 8
+ %div = udiv i32 0, %xFactor.0.reload
+ %1 = load i32, i32* undef, align 4
+ %mul = mul i32 %1, %xFactor.0.reload
+ %col.023.us.us85.i = add i32 %div, -1
+ %mul11.us.us93.i = mul i32 %col.023.us.us85.i, %mul
+ br label %for.body8.us.us95.i
+
+for.body8.us.us95.i:
+ %niter.i = phi i32 [ %niter.i.next, %for.body8.us.us95.i ], [ 0, %entry ]
+ %add12.us.us100.1.i = add i32 1, %mul11.us.us93.i
+ %idxprom13.us.us101.1.i = zext i32 %add12.us.us100.1.i to i64
+ %arrayidx14.us.us102.1.i = getelementptr inbounds i8, i8* %0, i64 %idxprom13.us.us101.1.i
+ store i8 0, i8* %arrayidx14.us.us102.1.i, align 1
+ %niter.ncmp.3.i = icmp eq i32 %niter.i, 4
+ %niter.i.next = add i32 %niter.i, 1
+ br i1 %niter.ncmp.3.i, label %for.body8.us.us95.epil.i.preheader, label %for.body8.us.us95.i
+
+for.body8.us.us95.epil.i.preheader:
+ ret void
+}
+
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