[analyzer] Assume new returns non-null even under -fno-exceptions
Summary:
-fno-exceptions does not implicitly attach a nothrow specifier to every operator
new. Even in this mode, non-nothrow new must not return a null pointer. Failure
to allocate memory can be signalled by other means, or just by killing the
program. This behaviour is consistent with the compiler - even with
-fno-exceptions, the generated code never tests for null (and would segfault if
the opeator actually happened to return null).
Reviewers: jordan_rose
CC: cfe-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D1528
llvm-svn: 189452
diff --git a/clang/test/Analysis/NewDelete-path-notes.cpp b/clang/test/Analysis/NewDelete-path-notes.cpp
index d38bdb6..b420551 100644
--- a/clang/test/Analysis/NewDelete-path-notes.cpp
+++ b/clang/test/Analysis/NewDelete-path-notes.cpp
@@ -6,8 +6,7 @@
int *p = new int;
// expected-note@-1 {{Memory is allocated}}
if (p)
- // expected-note@-1 {{Assuming 'p' is non-null}}
- // expected-note@-2 {{Taking true branch}}
+ // expected-note@-1 {{Taking true branch}}
delete p;
// expected-note@-1 {{Memory is released}}
@@ -151,75 +150,12 @@
// CHECK-NEXT: <key>end</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: </array>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: </array>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>kind</key><string>event</string>
-// CHECK-NEXT: <key>location</key>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: <key>ranges</key>
-// CHECK-NEXT: <array>
-// CHECK-NEXT: <array>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: </array>
-// CHECK-NEXT: </array>
-// CHECK-NEXT: <key>depth</key><integer>0</integer>
-// CHECK-NEXT: <key>extended_message</key>
-// CHECK-NEXT: <string>Assuming 'p' is non-null</string>
-// CHECK-NEXT: <key>message</key>
-// CHECK-NEXT: <string>Assuming 'p' is non-null</string>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>kind</key><string>control</string>
-// CHECK-NEXT: <key>edges</key>
-// CHECK-NEXT: <array>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>start</key>
-// CHECK-NEXT: <array>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>8</integer>
-// CHECK-NEXT: <key>col</key><integer>7</integer>
-// CHECK-NEXT: <key>file</key><integer>0</integer>
-// CHECK-NEXT: </dict>
-// CHECK-NEXT: </array>
-// CHECK-NEXT: <key>end</key>
-// CHECK-NEXT: <array>
-// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>5</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>10</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -231,7 +167,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>5</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -239,12 +175,12 @@
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>5</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -264,12 +200,12 @@
// CHECK-NEXT: <key>start</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>5</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>11</integer>
+// CHECK-NEXT: <key>line</key><integer>10</integer>
// CHECK-NEXT: <key>col</key><integer>10</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -277,12 +213,12 @@
// CHECK-NEXT: <key>end</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>14</integer>
+// CHECK-NEXT: <key>line</key><integer>13</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>14</integer>
+// CHECK-NEXT: <key>line</key><integer>13</integer>
// CHECK-NEXT: <key>col</key><integer>8</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -294,7 +230,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>14</integer>
+// CHECK-NEXT: <key>line</key><integer>13</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -302,12 +238,12 @@
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>14</integer>
+// CHECK-NEXT: <key>line</key><integer>13</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>14</integer>
+// CHECK-NEXT: <key>line</key><integer>13</integer>
// CHECK-NEXT: <key>col</key><integer>10</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -325,10 +261,10 @@
// CHECK-NEXT: <key>type</key><string>Double free</string>
// CHECK-NEXT: <key>issue_context_kind</key><string>function</string>
// CHECK-NEXT: <key>issue_context</key><string>test</string>
-// CHECK-NEXT: <key>issue_hash</key><string>9</string>
+// CHECK-NEXT: <key>issue_hash</key><string>8</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>14</integer>
+// CHECK-NEXT: <key>line</key><integer>13</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -340,7 +276,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -348,12 +284,12 @@
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -369,7 +305,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>19</integer>
+// CHECK-NEXT: <key>line</key><integer>18</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -387,12 +323,12 @@
// CHECK-NEXT: <key>start</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>19</integer>
+// CHECK-NEXT: <key>line</key><integer>18</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>19</integer>
+// CHECK-NEXT: <key>line</key><integer>18</integer>
// CHECK-NEXT: <key>col</key><integer>5</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -400,12 +336,12 @@
// CHECK-NEXT: <key>end</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>20</integer>
+// CHECK-NEXT: <key>line</key><integer>19</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>20</integer>
+// CHECK-NEXT: <key>line</key><integer>19</integer>
// CHECK-NEXT: <key>col</key><integer>8</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -417,7 +353,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>20</integer>
+// CHECK-NEXT: <key>line</key><integer>19</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -425,12 +361,12 @@
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>20</integer>
+// CHECK-NEXT: <key>line</key><integer>19</integer>
// CHECK-NEXT: <key>col</key><integer>3</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>20</integer>
+// CHECK-NEXT: <key>line</key><integer>19</integer>
// CHECK-NEXT: <key>col</key><integer>13</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -446,7 +382,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -454,12 +390,12 @@
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>12</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -479,12 +415,12 @@
// CHECK-NEXT: <key>start</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>25</integer>
+// CHECK-NEXT: <key>line</key><integer>24</integer>
// CHECK-NEXT: <key>col</key><integer>4</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -492,12 +428,12 @@
// CHECK-NEXT: <key>end</key>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>27</integer>
+// CHECK-NEXT: <key>line</key><integer>26</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>27</integer>
+// CHECK-NEXT: <key>line</key><integer>26</integer>
// CHECK-NEXT: <key>col</key><integer>7</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -509,7 +445,7 @@
// CHECK-NEXT: <key>kind</key><string>event</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>27</integer>
+// CHECK-NEXT: <key>line</key><integer>26</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -517,12 +453,12 @@
// CHECK-NEXT: <array>
// CHECK-NEXT: <array>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>27</integer>
+// CHECK-NEXT: <key>line</key><integer>26</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>27</integer>
+// CHECK-NEXT: <key>line</key><integer>26</integer>
// CHECK-NEXT: <key>col</key><integer>11</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>
@@ -543,7 +479,7 @@
// CHECK-NEXT: <key>issue_hash</key><string>3</string>
// CHECK-NEXT: <key>location</key>
// CHECK-NEXT: <dict>
-// CHECK-NEXT: <key>line</key><integer>27</integer>
+// CHECK-NEXT: <key>line</key><integer>26</integer>
// CHECK-NEXT: <key>col</key><integer>2</integer>
// CHECK-NEXT: <key>file</key><integer>0</integer>
// CHECK-NEXT: </dict>