Index: lib/Transforms/Vectorize/LoopVectorize.cpp =================================================================== --- lib/Transforms/Vectorize/LoopVectorize.cpp +++ lib/Transforms/Vectorize/LoopVectorize.cpp @@ -3048,8 +3048,6 @@ // Handle Stores: if (SI) { - assert(!Legal->isUniform(SI->getPointerOperand()) && - "We do not allow storing to uniform addresses"); setDebugLocFromInst(Builder, SI); for (unsigned Part = 0; Part < UF; ++Part) { Index: test/Transforms/LoopVectorize/pr36311.ll =================================================================== --- test/Transforms/LoopVectorize/pr36311.ll +++ test/Transforms/LoopVectorize/pr36311.ll @@ -0,0 +1,49 @@ +; RUN: opt -loop-vectorize -force-vector-width=2 -S < %s +; +; Cleaned up version of fe_tools.all_dimensions.ll from PR36311. +; Forcing VF=2 to trigger vector code gen +; +; This is a test case that let's vectorizer's code gen to modify CFG and get +; DomTree out of date, such that an assert from SCEV would trigger if +; reanalysis of SCEV happens subsequently. Once vector code gen starts, +; vectorizer should not invoke recomputation of Analysis. + +$test = comdat any + +declare i32 @__gxx_personality_v0(...) + +; Function Attrs: uwtable +define dso_local void @test() local_unnamed_addr #0 comdat align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { +entry: + br label %for.body51 + +for.body51: ; preds = %for.body51, %entry + br i1 undef, label %for.body51, label %for.body89.lr.ph + +for.cond80.loopexit: ; preds = %for.body89 + %inc94.lcssa = phi i32 [ %inc94, %for.body89 ] + br i1 undef, label %for.body89.lr.ph, label %nrvo.skipdtor.loopexit + +for.body89.lr.ph: ; preds = %for.cond80.loopexit, %for.body51 + %i79.0179 = phi i32 [ %add90, %for.cond80.loopexit ], [ 0, %for.body51 ] + %next_index.4178 = phi i32 [ %inc94.lcssa, %for.cond80.loopexit ], [ undef, %for.body51 ] + %add90 = add nuw i32 %i79.0179, 1 + %mul91 = mul i32 %add90, undef + br label %for.body89 + +for.body89: ; preds = %for.body89, %for.body89.lr.ph + %j.0175 = phi i32 [ 0, %for.body89.lr.ph ], [ %add92, %for.body89 ] + %next_index.5174 = phi i32 [ %next_index.4178, %for.body89.lr.ph ], [ %inc94, %for.body89 ] + %add92 = add nuw i32 %j.0175, 1 + %add93 = add i32 %add92, %mul91 + %inc94 = add i32 %next_index.5174, 1 + %conv95 = zext i32 %next_index.5174 to i64 + %arrayidx.i160 = getelementptr inbounds i32, i32* undef, i64 %conv95 + store i32 %add93, i32* %arrayidx.i160, align 4 +;, !tbaa !1 + %cmp87 = icmp ult i32 %add92, undef + br i1 %cmp87, label %for.body89, label %for.cond80.loopexit + +nrvo.skipdtor.loopexit: ; preds = %for.cond80.loopexit + ret void +}