From: Thomas Preud'homme <thomas.preudhomme@linaro.org>
Date: Thu, 25 Oct 2018 10:19:49 +0000 (+0000)
Subject: [testsuite] Fix sibcall-9 & sibcall-10 with -fPIC
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=541eccada375ed8309ab805e0a4df146ac07fc2d;p=gcc.git

[testsuite] Fix sibcall-9 & sibcall-10 with -fPIC

gcc.dg/sibcall-9.c and gcc.dg/sibcall-10.c give execution failure
on ARM when compiled with -fPIC due to the PIC access to volatile
variable v creating an extra spill which causes the frame size of the
two recursive functions to be different. Making the variable static
solve the issue because the variable can be access in a PC-relative way
and avoid the spill, while still testing sibling call as originally
intended.

2018-10-25  Thomas Preud'homme  <thomas.preudhomme@linaro.org>

gcc/testsuite/
    * gcc.dg/sibcall-9.c: Make v static.
    * gcc.dg/sibcall-10.c: Likewise.

From-SVN: r265482
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6a50e92905b..23b21906534 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-25  Thomas Preud'homme  <thomas.preudhomme@linaro.org>
+
+	* gcc.dg/sibcall-9.c: Make v static.
+	* gcc.dg/sibcall-10.c: Likewise.
+
 2018-10-25  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/87665
diff --git a/gcc/testsuite/gcc.dg/sibcall-10.c b/gcc/testsuite/gcc.dg/sibcall-10.c
index 54cc604aecf..4acca50e3e4 100644
--- a/gcc/testsuite/gcc.dg/sibcall-10.c
+++ b/gcc/testsuite/gcc.dg/sibcall-10.c
@@ -31,7 +31,7 @@ extern void exit (int);
 static ATTR void recurser_void1 (void);
 static ATTR void recurser_void2 (void);
 extern void track (void);
-volatile int v;
+static volatile int v;
 
 int n = 0;
 int main ()
diff --git a/gcc/testsuite/gcc.dg/sibcall-9.c b/gcc/testsuite/gcc.dg/sibcall-9.c
index fc3bd9dcf16..32b2e1d5d61 100644
--- a/gcc/testsuite/gcc.dg/sibcall-9.c
+++ b/gcc/testsuite/gcc.dg/sibcall-9.c
@@ -31,7 +31,7 @@ extern void exit (int);
 static ATTR void recurser_void1 (int);
 static ATTR void recurser_void2 (int);
 extern void track (int);
-volatile int v;
+static volatile int v;
 
 int main ()
 {