diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/powerpc/ppc-stackalign-1.c')
-rw-r--r-- | gcc/testsuite/gcc.target/powerpc/ppc-stackalign-1.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/powerpc/ppc-stackalign-1.c b/gcc/testsuite/gcc.target/powerpc/ppc-stackalign-1.c new file mode 100644 index 000000000..465fc41e1 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/ppc-stackalign-1.c @@ -0,0 +1,35 @@ +/* { dg-do run { target powerpc*-*-linux* powerpc*-*-eabi* } } */ +/* { dg-options {} } */ + +/* Test stack pointer alignment against variable alloca. */ +/* Inspired by PR libgcj/10610. */ +/* Origin: Franz Sirl <Franz.Sirl-kernel@lauterbach.com>. */ + +extern void abort (void); +extern void exit (int); + +register unsigned long sp __asm__ ("r1"); + +void g (int * val __attribute__ ((unused))) +{ + if (sp & 0xf) + abort (); +} + +void f (int val) +{ + int *val1 = __builtin_alloca (val); + + g (val1); + return; +} + +int main (void) +{ + int i; + + for (i = 1; i < 32; i++) + f (i); + + exit (0); +} |