[FIX] Cleanup isl objects prior to early exit

llvm-svn: 269061

2 files changed, 67 insertions, 5 deletions

diff --git a/polly/lib/Analysis/ScopInfo.cpp b/polly/lib/Analysis/ScopInfo.cpp
index 96c4ed90d60..38d402f10b4 100644
--- a/polly/lib/Analysis/ScopInfo.cpp
+++ b/polly/lib/Analysis/ScopInfo.cpp
@@ -1301,12 +1301,15 @@ buildConditionSets(ScopStmt &Stmt, Value *Condition, TerminatorInst *TI,
     auto Opcode = BinOp->getOpcode();
     assert(Opcode == Instruction::And || Opcode == Instruction::Or);
 
-    if (!buildConditionSets(Stmt, BinOp->getOperand(0), TI, L, Domain,
-                            ConditionSets))
-      return false;
-    if (!buildConditionSets(Stmt, BinOp->getOperand(1), TI, L, Domain,
-                            ConditionSets))
+    bool Valid = buildConditionSets(Stmt, BinOp->getOperand(0), TI, L, Domain,
+                                    ConditionSets) &&
+                 buildConditionSets(Stmt, BinOp->getOperand(1), TI, L, Domain,
+                                    ConditionSets);
+    if (!Valid) {
+      while (!ConditionSets.empty())
+        isl_set_free(ConditionSets.pop_back_val());
       return false;
+    }
 
     isl_set_free(ConditionSets.pop_back_val());
     isl_set *ConsCondPart0 = ConditionSets.pop_back_val();
diff --git a/polly/test/ScopInfo/complex_domain_binary_condition.ll b/polly/test/ScopInfo/complex_domain_binary_condition.ll
new file mode 100644
index 00000000000..231986388ee
--- /dev/null
+++ b/polly/test/ScopInfo/complex_domain_binary_condition.ll
@@ -0,0 +1,59 @@
+; RUN: opt %loadPolly -pass-remarks-analysis="polly-scops" -polly-scops \
+; RUN:     < %s 2>&1 | FileCheck %s
+;
+; CHECK: Low complexity assumption: {  : 1 = 0 }
+;
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+
+%struct.bc_struct.0.2.4.6.13.20.27.43.44.46.50.52.58.60.81.89.90.99.107.108.109.111.116.118.149 = type { i32, i32, i32, i32, [1024 x i8] }
+
+; Function Attrs: nounwind uwtable
+define void @bc_multiply(%struct.bc_struct.0.2.4.6.13.20.27.43.44.46.50.52.58.60.81.89.90.99.107.108.109.111.116.118.149* readonly %n1, i32 %scale) #0 {
+entry:
+  %0 = load i32, i32* undef, align 4
+  %1 = load i32, i32* undef, align 4
+  %2 = load i32, i32* undef, align 4
+  %add3 = add nsw i32 %2, %1
+  %cmp = icmp sgt i32 %0, %2
+  %. = select i1 %cmp, i32 %0, i32 %2
+  %cmp12 = icmp slt i32 %., %scale
+  %scale.. = select i1 %cmp12, i32 %scale, i32 %.
+  %cmp26 = icmp sgt i32 0, %scale..
+  %scale...add7 = select i1 %cmp26, i32 %scale.., i32 0
+  %sub = sub nsw i32 0, %scale...add7
+  %add.ptr = getelementptr inbounds %struct.bc_struct.0.2.4.6.13.20.27.43.44.46.50.52.58.60.81.89.90.99.107.108.109.111.116.118.149, %struct.bc_struct.0.2.4.6.13.20.27.43.44.46.50.52.58.60.81.89.90.99.107.108.109.111.116.118.149* %n1, i64 0, i32 4, i64 0
+  %add.ptr59 = getelementptr inbounds i8, i8* %add.ptr, i64 -1
+  %idx.ext62 = sext i32 %add3 to i64
+  %cmp70140 = icmp sgt i32 %sub, 0
+  br label %for.body104.lr.ph
+
+for.body104.lr.ph:                                ; preds = %entry
+  %3 = add i32 0, -1
+  %4 = sub i32 %3, %scale...add7
+  %5 = add i32 %4, 1
+  %6 = sext i32 %5 to i64
+  br label %for.body104
+
+for.body104:                                      ; preds = %while.end146, %for.body104.lr.ph
+  %indvars.iv = phi i64 [ %6, %for.body104.lr.ph ], [ undef, %while.end146 ]
+  %7 = sub nsw i64 %indvars.iv, %idx.ext62
+  %cmp107 = icmp slt i64 %7, -1
+  %.op = xor i64 %7, -1
+  %idx.neg116 = select i1 %cmp107, i64 0, i64 %.op
+  %add.ptr117 = getelementptr inbounds i8, i8* %add.ptr59, i64 %idx.neg116
+  br label %while.body138
+
+while.body138:                                    ; preds = %while.body138, %for.body104
+  %n1ptr.1126 = phi i8* [ %incdec.ptr139, %while.body138 ], [ %add.ptr117, %for.body104 ]
+  %incdec.ptr139 = getelementptr inbounds i8, i8* %n1ptr.1126, i64 -1
+  %cmp132 = icmp uge i8* %incdec.ptr139, null
+  %cmp135 = icmp slt i64 0, -1
+  %or.cond99 = and i1 %cmp135, %cmp132
+  br i1 %or.cond99, label %while.body138, label %while.end146
+
+while.end146:                                     ; preds = %while.body138
+  br i1 undef, label %free_num.exit, label %for.body104
+
+free_num.exit:                                    ; preds = %while.end146
+  ret void
+}