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[PATCH 2/2] Add test cases for noreorder
- From: Andi Kleen <andi at firstfloor dot org>
- To: gcc-patches at gcc dot gnu dot org
- Cc: hubicka at ucw dot cz, Andi Kleen <ak at linux dot intel dot com>
- Date: Mon, 15 Sep 2014 20:15:04 -0700
- Subject: [PATCH 2/2] Add test cases for noreorder
- Authentication-results: sourceware.org; auth=none
- References: <1410837304-13952-1-git-send-email-andi at firstfloor dot org> <1410837304-13952-2-git-send-email-andi at firstfloor dot org>
From: Andi Kleen <ak@linux.intel.com>
Add some simple test cases for noreorder behaving like
-fno-toplevel-reorder and -fno-toplevel-reorder still working.
Unfortunately there's no easy way to check for output order in DG,
so we just check for existence.
gcc/testsuite/:
2014-09-15 Andi Kleen <ak@linux.intel.com>
* gcc.dg/noreorder.c: New test.
* gcc.dg/noreorder2.c: New test.
* gcc.dg/noreorder3.c: New test.
* gcc.dg/noreorder4.c: New test.
---
gcc/testsuite/gcc.dg/noreorder.c | 38 ++++++++++++++++++++++++++++++++++++++
gcc/testsuite/gcc.dg/noreorder2.c | 11 +++++++++++
gcc/testsuite/gcc.dg/noreorder3.c | 10 ++++++++++
gcc/testsuite/gcc.dg/noreorder4.c | 5 +++++
4 files changed, 64 insertions(+)
create mode 100644 gcc/testsuite/gcc.dg/noreorder.c
create mode 100644 gcc/testsuite/gcc.dg/noreorder2.c
create mode 100644 gcc/testsuite/gcc.dg/noreorder3.c
create mode 100644 gcc/testsuite/gcc.dg/noreorder4.c
diff --git a/gcc/testsuite/gcc.dg/noreorder.c b/gcc/testsuite/gcc.dg/noreorder.c
new file mode 100644
index 0000000..7d40a29
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/noreorder.c
@@ -0,0 +1,38 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+/* The function order in this file is opposite from what the cgraph
+ topological sort would output. So we can check the order is preserved. */
+
+extern void f2(int);
+static int func2(void);
+
+#ifndef NOREORDER
+#define NOREORDER __attribute__((no_reorder))
+#endif
+
+asm("firstasm");
+
+NOREORDER __attribute__((noinline)) int bozo(void)
+{
+ f2(3);
+ func2();
+}
+
+asm("jukjuk");
+
+NOREORDER __attribute__((noinline)) static int func1(void)
+{
+ f2(1);
+}
+
+asm("barbar");
+
+NOREORDER __attribute__((noinline)) static int func2(void)
+{
+ func1();
+}
+
+asm("lastasm");
+
+/* { dg-final { scan-assembler "firstasm.*bozo.*jukjuk.*func1.*barbar.*func2.*lastasm" } } */
diff --git a/gcc/testsuite/gcc.dg/noreorder2.c b/gcc/testsuite/gcc.dg/noreorder2.c
new file mode 100644
index 0000000..558361b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/noreorder2.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-toplevel-reorder" } */
+
+__attribute__((no_reorder)) int foobar;
+
+static int barbar;
+int bozo;
+
+/* { dg-final { scan-assembler "foobar" } } */
+/* { dg-final { scan-assembler "bozo" } } */
+/* { dg-final { scan-assembler "barbar" } } */
diff --git a/gcc/testsuite/gcc.dg/noreorder3.c b/gcc/testsuite/gcc.dg/noreorder3.c
new file mode 100644
index 0000000..a0b637f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/noreorder3.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+__attribute__((no_reorder)) int foobar;
+static int barbar;
+int bozo;
+
+/* { dg-final { scan-assembler "foobar" } } */
+/* { dg-final { scan-assembler "bozo" } } */
+/* { dg-final { scan-assembler-not "barbar" } } */
diff --git a/gcc/testsuite/gcc.dg/noreorder4.c b/gcc/testsuite/gcc.dg/noreorder4.c
new file mode 100644
index 0000000..632fc33
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/noreorder4.c
@@ -0,0 +1,5 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-toplevel-reorder" } */
+#define NOREORDER
+#include "noreorder.c"
+/* { dg-final { scan-assembler "bozo.*jukjuk.*func1.*barbar.*func2" } } */
--
2.1.0