[PATCH 2/2] Add some more test cases for fentry and pg

Andi Kleen andi@firstfloor.org
Fri Sep 12 14:33:00 GMT 2014


From: Andi Kleen <ak@linux.intel.com>

Test fentry and no_instrument_function overriding.

No test cases for the LTO test for now, as the LTO
harness doesn't seem to support different flags for the final
link.

gcc/testsuite/:

2014-09-11  Andi Kleen  <ak@linux.intel.com>

	* gcc.dg/pg-override.c: New test.
	* gcc.dg/pg.c: New test.
	* gcc.target/i386/fentry-override.c: New test.
	* gcc.target/i386/fentry.c: New test.
---
 gcc/testsuite/gcc.dg/pg-override.c              | 18 ++++++++++++++++++
 gcc/testsuite/gcc.dg/pg.c                       | 18 ++++++++++++++++++
 gcc/testsuite/gcc.target/i386/fentry-override.c | 18 ++++++++++++++++++
 gcc/testsuite/gcc.target/i386/fentry.c          | 18 ++++++++++++++++++
 4 files changed, 72 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/pg-override.c
 create mode 100644 gcc/testsuite/gcc.dg/pg.c
 create mode 100644 gcc/testsuite/gcc.target/i386/fentry-override.c
 create mode 100644 gcc/testsuite/gcc.target/i386/fentry.c

diff --git a/gcc/testsuite/gcc.dg/pg-override.c b/gcc/testsuite/gcc.dg/pg-override.c
new file mode 100644
index 0000000..7cd6680
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pg-override.c
@@ -0,0 +1,18 @@
+/* Test -fprofile override */
+/* { dg-do compile } */
+/* { dg-options "-fprofile" } */
+/* { dg-final { scan-assembler-not "mcount" } } */
+/* Origin: Andi Kleen */
+extern void foobar(const char *);
+
+__attribute__((no_instrument_function)) void func(void)
+{
+  foobar ("Hello world\n");
+}
+
+__attribute__((no_instrument_function)) void func2(void)
+{
+  int i;
+  for (i = 0; i < 10; i++)
+    foobar ("Hello world");
+}
diff --git a/gcc/testsuite/gcc.dg/pg.c b/gcc/testsuite/gcc.dg/pg.c
new file mode 100644
index 0000000..7cd6680
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pg.c
@@ -0,0 +1,18 @@
+/* Test -fprofile override */
+/* { dg-do compile } */
+/* { dg-options "-fprofile" } */
+/* { dg-final { scan-assembler-not "mcount" } } */
+/* Origin: Andi Kleen */
+extern void foobar(const char *);
+
+__attribute__((no_instrument_function)) void func(void)
+{
+  foobar ("Hello world\n");
+}
+
+__attribute__((no_instrument_function)) void func2(void)
+{
+  int i;
+  for (i = 0; i < 10; i++)
+    foobar ("Hello world");
+}
diff --git a/gcc/testsuite/gcc.target/i386/fentry-override.c b/gcc/testsuite/gcc.target/i386/fentry-override.c
new file mode 100644
index 0000000..3771f19
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/fentry-override.c
@@ -0,0 +1,18 @@
+/* Test -mfentry override */
+/* { dg-do compile } */
+/* { dg-options "-mfentry" } */
+/* { dg-final { scan-assembler-not "__fentry__" } } */
+/* Origin: Andi Kleen */
+extern void foobar(const char *);
+
+void __attribute__((no_instrument_function)) func(void)
+{
+  foobar ("Hello world\n");
+}
+
+void __attribute__((no_instrument_function)) func2(void)
+{
+  int i;
+  for (i = 0; i < 10; i++)
+    foobar ("Hello world");
+}
diff --git a/gcc/testsuite/gcc.target/i386/fentry.c b/gcc/testsuite/gcc.target/i386/fentry.c
new file mode 100644
index 0000000..bd3db13
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/fentry.c
@@ -0,0 +1,18 @@
+/* Test -mfentry */
+/* { dg-do compile } */
+/* { dg-options "-fprofile -mfentry" } */
+/* { dg-final { scan-assembler "__fentry__" } } */
+/* Origin: Andi Kleen */
+extern void foobar(const char *);
+
+void func(void)
+{
+  foobar ("Hello world\n");
+}
+
+void func2(void)
+{
+  int i;
+  for (i = 0; i < 10; i++)
+    foobar ("Hello world");
+}
-- 
2.1.0



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