> From: Andi Kleen <a...@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.
OK, thanks! Honza > > gcc/testsuite/: > > 2014-09-15 Andi Kleen <a...@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