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

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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
This commit is contained in:
Thomas Preud'homme 2018-10-25 10:19:49 +00:00 committed by Thomas Preud'homme
parent 7852940e7b
commit 541eccada3
3 changed files with 7 additions and 2 deletions
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5
gcc/testsuite/ChangeLog
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@ -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

2
gcc/testsuite/gcc.dg/sibcall-10.c
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@ -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 ()

2
gcc/testsuite/gcc.dg/sibcall-9.c
View File

@ -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 ()
{