; RUN: opt %loadPolly -analyze -polly-ast -polly-process-unprofitable -polly-allow-nonaffine < %s | FileCheck %s ; ; @test1 ; Make sure we generate the correct aliasing check for a fixed-size memset operation. ; CHECK: if (1 && (&MemRef_tmp0[15] <= &MemRef_tmp1[0] || &MemRef_tmp1[32] <= &MemRef_tmp0[14])) ; ; @test2 ; Make sure we generate the correct aliasing check for a variable-size memset operation. ; CHECK: if (1 && (&MemRef_tmp0[15] <= &MemRef_tmp1[0] || &MemRef_tmp1[n] <= &MemRef_tmp0[14])) ; ; @test3 ; We can't do anything interesting with a non-affine memset; just make sure it doesn't crash. ; target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" %struct.info = type { i32, %struct.ctr*, i32, %struct.ord*, %struct.ctr*, i32, i8*, i32, i32, double } %struct.ctr = type { i32, i8, i8, i32 } %struct.ord = type { i32, i8 } ; Function Attrs: argmemonly nounwind declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #0 define void @test1(%struct.info** %ppIdxInfo) { entry: %tmp0 = load %struct.info*, %struct.info** %ppIdxInfo, align 8 br label %if.end125 if.end125: ; preds = %entry %tmp1 = load %struct.ctr*, %struct.ctr** undef, align 8 br label %for.end143 for.end143: ; preds = %if.end125 %tmp2 = bitcast %struct.ctr* %tmp1 to i8* tail call void @llvm.memset.p0i8.i64(i8* %tmp2, i8 0, i64 32, i32 4, i1 false) %needToFreeIdxStr = getelementptr inbounds %struct.info, %struct.info* %tmp0, i64 0, i32 7 %tmp3 = load i32, i32* %needToFreeIdxStr, align 8 br i1 false, label %if.end149, label %if.then148 if.then148: ; preds = %for.end143 br label %if.end149 if.end149: ; preds = %if.then148, %for.end143 ret void } define void @test2(%struct.info** %ppIdxInfo, i64 %n) { entry: %tmp0 = load %struct.info*, %struct.info** %ppIdxInfo, align 8 br label %if.end125 if.end125: ; preds = %entry %tmp1 = load %struct.ctr*, %struct.ctr** undef, align 8 br label %for.end143 for.end143: ; preds = %if.end125 %tmp2 = bitcast %struct.ctr* %tmp1 to i8* tail call void @llvm.memset.p0i8.i64(i8* %tmp2, i8 0, i64 %n, i32 4, i1 false) %needToFreeIdxStr = getelementptr inbounds %struct.info, %struct.info* %tmp0, i64 0, i32 7 %tmp3 = load i32, i32* %needToFreeIdxStr, align 8 br i1 false, label %if.end149, label %if.then148 if.then148: ; preds = %for.end143 br label %if.end149 if.end149: ; preds = %if.then148, %for.end143 ret void } define i32 @test3(i32* %x, i32 %n) { entry: br label %entry.split entry.split: ; preds = %entry %conv = sext i32 %n to i64 %cmp8 = icmp sgt i32 %n, 0 br i1 %cmp8, label %for.body.lr.ph, label %for.cond.cleanup for.body.lr.ph: ; preds = %entry.split %tmp0 = bitcast i32* %x to i8* br label %for.body for.cond.cleanup: ; preds = %for.body, %entry.split ret i32 0 for.body: ; preds = %for.body, %for.body.lr.ph %i.09 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ] %mul = mul nsw i64 %i.09, %i.09 tail call void @llvm.memset.p0i8.i64(i8* %tmp0, i8 0, i64 %mul, i32 4, i1 false) %add = add nuw nsw i64 %i.09, 1000 %arrayidx = getelementptr inbounds i32, i32* %x, i64 %add store i32 5, i32* %arrayidx, align 4 %inc = add nuw nsw i64 %i.09, 1 %exitcond = icmp eq i64 %inc, %conv br i1 %exitcond, label %for.cond.cleanup, label %for.body } attributes #0 = { argmemonly nounwind }