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-rw-r--r--clang/test/Analysis/loop-unrolling.cpp55
1 files changed, 54 insertions, 1 deletions
diff --git a/clang/test/Analysis/loop-unrolling.cpp b/clang/test/Analysis/loop-unrolling.cpp
index 51261e3ee19..4d04b7b85b8 100644
--- a/clang/test/Analysis/loop-unrolling.cpp
+++ b/clang/test/Analysis/loop-unrolling.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-max-loop 4 -analyzer-config unroll-loops=true -verify -std=c++11 %s
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-config unroll-loops=true,cfg-loopexit=true -verify -std=c++11 %s
void clang_analyzer_numTimesReached();
@@ -219,3 +219,56 @@ int nested_inlined_no_unroll1() {
int a = 22 / k; // no-warning
return 0;
}
+
+
+int recursion_unroll1(bool b) {
+ int k = 2;
+ for (int i = 0; i < 5; i++) {
+ clang_analyzer_numTimesReached(); // expected-warning {{14}}
+ if(i == 0 && b)
+ recursion_unroll1(false);
+ clang_analyzer_numTimesReached(); // expected-warning {{15}}
+ }
+ int a = 22 / k; // no-warning
+ return 0;
+}
+
+int recursion_unroll2(bool b) {
+ int k = 0;
+ for (int i = 0; i < 5; i++) {
+ clang_analyzer_numTimesReached(); // expected-warning {{10}}
+ if(i == 0 && b)
+ recursion_unroll2(false);
+ clang_analyzer_numTimesReached(); // expected-warning {{10}}
+ }
+ int a = 22 / k; // expected-warning {{Division by zero}}
+ return 0;
+}
+
+int recursion_unroll3(bool b) {
+ int k = 2;
+ for (int i = 0; i < 5; i++) {
+ clang_analyzer_numTimesReached(); // expected-warning {{10}}
+ if(i == 4 && b) {
+ recursion_unroll3(false);
+ break;
+ }
+ clang_analyzer_numTimesReached(); // expected-warning {{10}}
+ }
+ int a = 22 / k;
+ return 0;
+}
+
+int recursion_unroll4(bool b) {
+ int k = 2;
+ for (int i = 0; i < 5; i++) {
+ clang_analyzer_numTimesReached(); // expected-warning {{14}}
+ if(i == 0 && b) {
+ recursion_unroll4(false);
+ continue;
+ }
+ clang_analyzer_numTimesReached(); // expected-warning {{14}}
+ }
+ int a = 22 / k;
+ return 0;
+}
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