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authorLuc Van Oostenryck <luc.vanoostenryck@gmail.com>2017-11-26 09:55:45 +0100
committerLuc Van Oostenryck <luc.vanoostenryck@gmail.com>2017-12-21 01:53:51 +0100
commitfd02a4ef554a61f30bdb7b90c729ef5bd6a1b0dc (patch)
tree0c1dbd7b8c19a9e125c88affb43a6f80f977bda3 /validation
parent178f19ad47c916ce02b286ec9cf831950340a4ac (diff)
downloadsparse-dev-fd02a4ef554a61f30bdb7b90c729ef5bd6a1b0dc.tar.gz
add testcases for the linearization of calls
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'validation')
-rw-r--r--validation/builtin-arith.c52
-rw-r--r--validation/function-pointer-type.c9
-rw-r--r--validation/linear/call-basic.c58
-rw-r--r--validation/linear/call-builtin.c14
-rw-r--r--validation/linear/call-casted-pointer.c32
-rw-r--r--validation/linear/call-complex-pointer.c32
-rw-r--r--validation/linear/call-direct.c14
-rw-r--r--validation/linear/call-indirect.c14
-rw-r--r--validation/linear/call-inline.c15
-rw-r--r--validation/optim/call-complex-pointer.c13
-rw-r--r--validation/sizeof-builtin.c15
-rw-r--r--validation/sizeof-function.c50
12 files changed, 318 insertions, 0 deletions
diff --git a/validation/builtin-arith.c b/validation/builtin-arith.c
new file mode 100644
index 00000000..d08c93da
--- /dev/null
+++ b/validation/builtin-arith.c
@@ -0,0 +1,52 @@
+
+
+void test(void (*fun)(void));
+void test(void (*fun)(void))
+{
+ typedef typeof(__builtin_trap) t; // OK
+ void (*f)(void);
+ int i;
+
+ f = __builtin_trap;
+ f = &__builtin_trap;
+ f = *__builtin_trap; // OK for GCC
+ f = __builtin_trap + 0;
+ f = __builtin_trap + 1;
+ f = __builtin_trap - 1;
+
+ // (void) __builtin_trap;
+ f = (void*) __builtin_trap;
+ f = (unsigned long) __builtin_trap;
+
+ i = !__builtin_trap;
+ i = (__builtin_trap > fun);
+ i = (__builtin_trap == fun);
+ i = (fun < __builtin_trap);
+ i = (fun == __builtin_trap);
+
+ __builtin_trap - fun;
+ fun - __builtin_trap;
+}
+
+/*
+ * check-name: builtin arithmetic
+ * check-command: sparse -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-error-start
+builtin-arith.c:10:xx: error: ...
+builtin-arith.c:11:xx: error: ...
+builtin-arith.c:13:xx: error: arithmetics on pointers to functions
+builtin-arith.c:14:xx: error: arithmetics on pointers to functions
+builtin-arith.c:15:xx: error: arithmetics on pointers to functions
+builtin-arith.c:18:xx: error: ...
+builtin-arith.c:19:xx: error: ...
+builtin-arith.c:21:xx: error: ...
+builtin-arith.c:22:xx: error: ...
+builtin-arith.c:23:xx: error: ...
+builtin-arith.c:24:xx: error: ...
+builtin-arith.c:25:xx: error: ...
+builtin-arith.c:27:24: error: subtraction of functions? Share your drugs
+builtin-arith.c:28:13: error: subtraction of functions? Share your drugs
+ * check-error-end
+ */
diff --git a/validation/function-pointer-type.c b/validation/function-pointer-type.c
new file mode 100644
index 00000000..8fd792b3
--- /dev/null
+++ b/validation/function-pointer-type.c
@@ -0,0 +1,9 @@
+extern int fun(void);
+
+void fa(void) { int (*f)(void); f = &fun; }
+void f0(void) { int (*f)(void); f = fun; } // C99,C11 6.3.2.1p4
+
+/*
+ * check-name: type of function pointers
+ * check-command: sparse -Wno-decl $file
+ */
diff --git a/validation/linear/call-basic.c b/validation/linear/call-basic.c
new file mode 100644
index 00000000..235b443d
--- /dev/null
+++ b/validation/linear/call-basic.c
@@ -0,0 +1,58 @@
+extern int fun(int a);
+
+int symbol(int a)
+{
+ fun(a);
+}
+
+int pointer0(int a, int (*fun)(int))
+{
+ fun(a);
+}
+
+int pointer1(int a, int (*fun)(int))
+{
+ (*fun)(a);
+}
+
+int builtin(int a)
+{
+ __builtin_popcount(a);
+}
+
+/*
+ * check-name: basic function calls
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-start
+symbol:
+.L0:
+ <entry-point>
+ call.32 %r2 <- fun, %arg1
+ ret.32 %r2
+
+
+pointer0:
+.L2:
+ <entry-point>
+ call.32 %r5 <- %arg2, %arg1
+ ret.32 %r5
+
+
+pointer1:
+.L4:
+ <entry-point>
+ call.32 %r8 <- %arg2, %arg1
+ ret.32 %r8
+
+
+builtin:
+.L6:
+ <entry-point>
+ call.32 %r11 <- __builtin_popcount, %arg1
+ ret.32 %r11
+
+
+ * check-output-end
+ */
diff --git a/validation/linear/call-builtin.c b/validation/linear/call-builtin.c
new file mode 100644
index 00000000..af0148aa
--- /dev/null
+++ b/validation/linear/call-builtin.c
@@ -0,0 +1,14 @@
+typedef unsigned int u32;
+
+u32 ff(u32 a) { return __builtin_popcount(a); }
+
+u32 f0(u32 a) { return (__builtin_popcount)(a); }
+
+/*
+ * check-name: builtin calls
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-excludes: load
+ * check-output-pattern(2): call\..*__builtin_.*, %arg1
+ */
diff --git a/validation/linear/call-casted-pointer.c b/validation/linear/call-casted-pointer.c
new file mode 100644
index 00000000..e66f6999
--- /dev/null
+++ b/validation/linear/call-casted-pointer.c
@@ -0,0 +1,32 @@
+typedef int (*fun_t)(void*);
+
+int foo(void *a, void *fun)
+{
+ return ((fun_t)fun)(a);
+}
+
+int bar(void *a, void *fun)
+{
+ return ((int (*)(void *))fun)(a);
+}
+
+int qux(void *a, void *fun)
+{
+ return (*(fun_t)fun)(a);
+}
+
+int quz(void *a, void *fun)
+{
+ return (*(int (*)(void *))fun)(a);
+}
+
+/*
+ * check-name: call via casted function pointer
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-excludes: load
+ * check-output-pattern(4): ptrcast\..* %arg2
+ * check-output-pattern(4): call\..* %arg1
+ */
diff --git a/validation/linear/call-complex-pointer.c b/validation/linear/call-complex-pointer.c
new file mode 100644
index 00000000..ea8232f1
--- /dev/null
+++ b/validation/linear/call-complex-pointer.c
@@ -0,0 +1,32 @@
+int foo(int p, int (*f0)(int), int (*f1)(int), int arg)
+{
+ return (p ? f0 : f1)(arg);
+}
+
+/*
+ * check-name: call-complex-pointer
+ * check-command: test-linearize -m64 -Wno-decl $file
+ *
+ * check-output-start
+foo:
+.L0:
+ <entry-point>
+ cbr %arg1, .L2, .L3
+
+.L2:
+ phisrc.64 %phi1 <- %arg2
+ br .L4
+
+.L3:
+ ptrcast.64 %r5 <- (64) %arg3
+ phisrc.64 %phi2 <- %r5
+ br .L4
+
+.L4:
+ phi.64 %r6 <- %phi1, %phi2
+ call.32 %r7 <- %r6, %arg4
+ ret.32 %r7
+
+
+ * check-output-end
+ */
diff --git a/validation/linear/call-direct.c b/validation/linear/call-direct.c
new file mode 100644
index 00000000..78321ab0
--- /dev/null
+++ b/validation/linear/call-direct.c
@@ -0,0 +1,14 @@
+extern int fun(void);
+
+int ff(void) { return fun(); }
+
+int f0(void) { return (fun)(); }
+
+/*
+ * check-name: direct calls
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-excludes: load
+ * check-output-pattern(2): call\..* fun
+ */
diff --git a/validation/linear/call-indirect.c b/validation/linear/call-indirect.c
new file mode 100644
index 00000000..8ab78676
--- /dev/null
+++ b/validation/linear/call-indirect.c
@@ -0,0 +1,14 @@
+int gg(int (*fun)(void)) { return fun(); }
+
+int g0(int (*fun)(void)) { return (fun)(); }
+int g1(int (*fun)(void)) { return (*fun)(); } // C99,C11 6.5.3.2p4
+
+/*
+ * check-name: indirect calls
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-excludes: load
+ * check-output-pattern(3): call\..* %arg1
+ */
diff --git a/validation/linear/call-inline.c b/validation/linear/call-inline.c
new file mode 100644
index 00000000..32f32461
--- /dev/null
+++ b/validation/linear/call-inline.c
@@ -0,0 +1,15 @@
+static inline int fun(void) { return 42; }
+
+int fi(void) { return fun(); }
+
+int i0(void) { return (fun)(); }
+
+/*
+ * check-name: inline calls
+ * check-command: test-linearize -Wno-decl $file
+ *
+ * check-output-ignore
+ * check-output-excludes: load
+ * check-output-excludes: call
+ * check-output-pattern(2): ret\..* \\$42
+ */
diff --git a/validation/optim/call-complex-pointer.c b/validation/optim/call-complex-pointer.c
new file mode 100644
index 00000000..6cfeb6ab
--- /dev/null
+++ b/validation/optim/call-complex-pointer.c
@@ -0,0 +1,13 @@
+int foo(int p, int (*f0)(int), int (*f1)(int), int arg)
+{
+ return (p ? f0 : f1)(arg);
+}
+/*
+ * check-name: call-complex-pointer
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-excludes: ptrcast\.
+ * check-output-contains: select\.
+ */
diff --git a/validation/sizeof-builtin.c b/validation/sizeof-builtin.c
new file mode 100644
index 00000000..7123e4de
--- /dev/null
+++ b/validation/sizeof-builtin.c
@@ -0,0 +1,15 @@
+int test(void);
+int test(void)
+{
+ return sizeof &__builtin_trap;
+}
+
+/*
+ * check-name: sizeof-builtin
+ * check-command: sparse -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-error-start
+sizeof-function.c:4:16: error: expression using addressof on a builtin function
+ * check-error-end
+ */
diff --git a/validation/sizeof-function.c b/validation/sizeof-function.c
new file mode 100644
index 00000000..20c795e9
--- /dev/null
+++ b/validation/sizeof-function.c
@@ -0,0 +1,50 @@
+extern int fun(void);
+extern int (*ptr)(void);
+
+static inline int inl(int *a)
+{
+ return *a + 1;
+}
+
+
+int test(void);
+int test(void)
+{
+ unsigned int s = 0;
+
+ // OK
+ s += sizeof &fun;
+ s += sizeof ptr;
+ s += sizeof &ptr;
+ s += sizeof &inl;
+
+ // KO
+ s += sizeof fun;
+ s += sizeof *fun;
+
+ s += sizeof *ptr;
+
+ s += sizeof inl;
+ s += sizeof *inl;
+
+ s += sizeof __builtin_trap;
+ s += sizeof *__builtin_trap;
+
+ return s;
+}
+
+/*
+ * check-name: sizeof-function
+ * check-command: sparse -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-error-start
+sizeof-function.c:22:14: warning: expression using sizeof on a function
+sizeof-function.c:23:14: warning: expression using sizeof on a function
+sizeof-function.c:25:14: warning: expression using sizeof on a function
+sizeof-function.c:27:14: warning: expression using sizeof on a function
+sizeof-function.c:28:14: warning: expression using sizeof on a function
+sizeof-function.c:30:14: warning: expression using sizeof on a function
+sizeof-function.c:31:14: warning: expression using sizeof on a function
+ * check-error-end
+ */
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