From: Manuel López-Ibáñez <manu@gcc.gnu.org>
Date: Tue, 22 Jan 2008 14:19:01 +0000 (+0000)
Subject: Missed testcases in earlier commit.
X-Git-Tag: releases/gcc-4.3.0~481
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=573fe0a122594bf28337f9d2d99c8005f1113940;p=thirdparty%2Fgcc.git

Missed testcases in earlier commit.

2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 32102
testsuite/
	* gcc.dg/Wstrict-overflow-21.c: New.
	* g++.dg/warn/Wstrict-aliasing-8.C: New.

From-SVN: r131722
---

diff --git a/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-8.C b/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-8.C
new file mode 100644
index 000000000000..497565eecdd0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-8.C
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-Wstrict-aliasing=2 -O2 -Wall" } */
+
+int a[2];
+
+double *foo1(void)
+{
+  return (double *)a; /* { dg-warning "strict-aliasing" } */
+}
+
+double *foo2(void)
+{
+  return (double *)&a[0]; /* { dg-warning "strict-aliasing" } */
+}
+
+__complex__ double x;
+int *bar(void)
+{
+  return (int *)&__imag__ x; /* { dg-warning "strict-aliasing" } */
+}
diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-21.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-21.c
new file mode 100644
index 000000000000..57e94652658c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-21.c
@@ -0,0 +1,12 @@
+/* PR 32102: -Wall stomps on -Wstrict-overflow */
+/* { dg-do compile } */
+/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=2 -Wall" } */
+int
+foo ()
+{
+  int i, bits;
+  for (i = 1, bits = 1; i > 0; i += i) /* { dg-warning "assuming signed overflow does not occur" "correct warning" } */
+    ++bits;
+  return bits;
+}
+