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[ScopDetect] Depend transitively on ScalarEvolution. 

ScopDetection might be queried by -dot-scops or -view-scops passes for which
it accesses ScalarEvolution.

llvm-svn: 284385
This commit is contained in:
Michael Kruse 2016-10-17 13:29:20 +00:00
parent 937dd7af2d
commit 6a19d592da
2 changed files with 48 additions and 1 deletions
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2
polly/lib/Analysis/ScopDetection.cpp
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@ -1578,7 +1578,7 @@ void polly::ScopDetection::verifyAnalysis() const {
void ScopDetection::getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<LoopInfoWrapperPass>();
AU.addRequired<ScalarEvolutionWrapperPass>();
AU.addRequiredTransitive<ScalarEvolutionWrapperPass>();
AU.addRequired<DominatorTreeWrapperPass>();
// We also need AA and RegionInfo when we are verifying analysis.
AU.addRequiredTransitive<AAResultsWrapperPass>();

47
polly/test/ScopDetect/dot-scops.ll Normal file
View File

@ -0,0 +1,47 @@
; RUN: opt %loadPolly -polly-scops -dot-scops -analyze < %s
;
; Check that the ScopPrinter does not crash.
; ScopPrinter needs the ScopDetection pass, which should depend on
; ScalarEvolution transitively.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @func(i32 %n, i32 %m, double* noalias nonnull %A) {
entry:
br label %outer.for
outer.for:
%j = phi i32 [0, %entry], [%j.inc, %outer.inc]
%j.cmp = icmp slt i32 %j, %n
br i1 %j.cmp, label %inner.for, label %outer.exit
inner.for:
%i = phi i32 [1, %outer.for], [%i.inc, %inner.inc]
%b = phi double [0.0, %outer.for], [%a, %inner.inc]
%i.cmp = icmp slt i32 %i, %m
br i1 %i.cmp, label %body1, label %inner.exit
body1:
%A_idx = getelementptr inbounds double, double* %A, i32 %i
%a = load double, double* %A_idx
store double %a, double* %A_idx
br label %inner.inc
inner.inc:
%i.inc = add nuw nsw i32 %i, 1
br label %inner.for
inner.exit:
br label %outer.inc
outer.inc:
store double %b, double* %A
%j.inc = add nuw nsw i32 %j, 1
br label %outer.for
outer.exit:
br label %return
return:
ret void
}