diff options
| -rw-r--r-- | polly/lib/Analysis/DependenceInfo.cpp | 4 | ||||
| -rw-r--r-- | polly/lib/Analysis/ScopInfo.cpp | 5 | ||||
| -rw-r--r-- | polly/test/DependenceInfo/infeasible_context.ll | 69 |
3 files changed, 76 insertions, 2 deletions
diff --git a/polly/lib/Analysis/DependenceInfo.cpp b/polly/lib/Analysis/DependenceInfo.cpp index fc8c98ed991..aa5eadcbac3 100644 --- a/polly/lib/Analysis/DependenceInfo.cpp +++ b/polly/lib/Analysis/DependenceInfo.cpp @@ -830,8 +830,10 @@ const Dependences &DependenceInfoWrapperPass::recomputeDependences( bool DependenceInfoWrapperPass::runOnFunction(Function &F) { auto &SI = getAnalysis<ScopInfoWrapperPass>(); - for (auto &It : SI) + for (auto &It : SI) { + assert(It.second && "Invalid SCoP object!"); recomputeDependences(It.second.get(), Dependences::AL_Access); + } return false; } diff --git a/polly/lib/Analysis/ScopInfo.cpp b/polly/lib/Analysis/ScopInfo.cpp index 04d6cadf2e7..a5693413ca0 100644 --- a/polly/lib/Analysis/ScopInfo.cpp +++ b/polly/lib/Analysis/ScopInfo.cpp @@ -4273,8 +4273,11 @@ bool ScopInfoWrapperPass::runOnFunction(Function &F) { continue; ScopBuilder SB(R, AC, AA, DL, DT, LI, SD, SE); + std::unique_ptr<Scop> S = SB.getScop(); + if (!S) + continue; bool Inserted = - RegionToScopMap.insert(std::make_pair(R, SB.getScop())).second; + RegionToScopMap.insert(std::make_pair(R, std::move(S))).second; assert(Inserted && "Building Scop for the same region twice!"); (void)Inserted; } diff --git a/polly/test/DependenceInfo/infeasible_context.ll b/polly/test/DependenceInfo/infeasible_context.ll new file mode 100644 index 00000000000..a111ed086a7 --- /dev/null +++ b/polly/test/DependenceInfo/infeasible_context.ll @@ -0,0 +1,69 @@ +; RUN: opt %loadPolly -polly-function-scops -analyze < %s \ +; RUN: | FileCheck %s -check-prefix=FUNC-SCOP +; RUN: opt %loadPolly -polly-function-dependences -analyze < %s \ +; RUN: | FileCheck %s -check-prefix=FUNC-DEPS +; +; FUNC-SCOP-NOT: Statement +; FUNC-DEPS-LABEL: Printing analysis 'Polly - Calculate dependences for all the SCoPs of a function' for function 'readgeo' +; FUNC-DEPS-NOT: RAW dependences +; +; Due to an infeasible run-time check, scop object is empty and we do not compute dependences. +; +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" + +%struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739 = type { i32, i32, %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, i32, i32, %struct.plist.0.6.12.66.120.174.216.306.324.336.348.366.378.390.432.444.666.726.732.738* } +%struct.plist.0.6.12.66.120.174.216.306.324.336.348.366.378.390.432.444.666.726.732.738 = type { i32, %struct.plist.0.6.12.66.120.174.216.306.324.336.348.366.378.390.432.444.666.726.732.738* } + +@vFixedEdgeRoot = external global %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, align 8 +@hEdgeRoot = external global %struct.tnode.1.7.13.67.121.175.217.307.325.337.349.367.379.391.433.445.667.727.733.739*, align 8 + +; Function Attrs: nounwind uwtable +define void @readgeo() #0 { +entry: + %vx = alloca i32, align 4 + br label %if.end64 + +if.end64: ; preds = %entry + br label %for.body73 + +for.body73: ; preds = %for.inc216, %if.end64 + %v.0101 = phi i32 [ 0, %for.inc216 ], [ 1, %if.end64 ] + br i1 undef, label %if.then93, label %if.else + +if.then93: ; preds = %for.body73 + br label %for.inc216 + +if.else: ; preds = %for.body73 + br i1 undef, label %if.then111, label %if.end116 + +if.then111: ; preds = %if.else + br label %if.end116 + +if.end116: ; preds = %if.then111, %if.else + %rippleCount.2 = phi i32 [ 1, %if.then111 ], [ undef, %if.else ] + %rem11790 = and i32 %v.0101, 1 + %cmp118 = icmp eq i32 %rem11790, 0 + br i1 %cmp118, label %if.then120, label %if.else154 + +if.then120: ; preds = %if.end116 + call void @tinsert() + br label %if.end193 + +if.else154: ; preds = %if.end116 + call void @tinsert() + br label %if.end193 + +if.end193: ; preds = %if.else154, %if.then120 + %0 = load i32, i32* %vx, align 4 + br label %for.inc216 + +for.inc216: ; preds = %if.end193, %if.then93 + %rippleCount.3 = phi i32 [ undef, %if.then93 ], [ %rippleCount.2, %if.end193 ] + %ux.2 = phi i32 [ undef, %if.then93 ], [ %0, %if.end193 ] + br i1 undef, label %for.body73, label %for.end218 + +for.end218: ; preds = %for.inc216 + unreachable +} + +declare void @tinsert() |
