On Tue, Apr 15, 2025 at 12:45 AM Uros Bizjak <ubiz...@gmail.com> wrote:
>
> On Tue, Apr 15, 2025 at 1:06 AM H.J. Lu <hjl.to...@gmail.com> wrote:
> >
> > ix86_add_cfa_restore_note omits the REG_CFA_RESTORE REG note for registers
> > pushed in red-zone. Since
> >
> > commit 0a074b8c7e79f9d9359d044f1499b0a9ce9d2801
> > Author: H.J. Lu <hjl.to...@gmail.com>
> > Date: Sun Apr 13 12:20:42 2025 -0700
> >
> > APX: Don't use red-zone with 32 GPRs and no caller-saved registers
> >
> > disabled red-zone, update gcc.target/i386/apx-interrupt-1.c to expect
> > 31 .cfi_restore directives.
>
> Hm, did you also account for RED_ZONE_RESERVE? The last 8-byte slot is
> reserved for internal use by the compiler.
There is no red-zone in this case.
> Uros.
>
> >
> > PR target/119784
> > * gcc.target/i386/apx-interrupt-1.c: Expect 31 .cfi_restore
> > directives.
> >
> > Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
> > ---
> > gcc/testsuite/gcc.target/i386/apx-interrupt-1.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/gcc/testsuite/gcc.target/i386/apx-interrupt-1.c
> > b/gcc/testsuite/gcc.target/i386/apx-interrupt-1.c
> > index fefe2e6d6fc..fa1acc7a142 100644
> > --- a/gcc/testsuite/gcc.target/i386/apx-interrupt-1.c
> > +++ b/gcc/testsuite/gcc.target/i386/apx-interrupt-1.c
> > @@ -66,7 +66,7 @@ void foo (void *frame)
> > /* { dg-final { scan-assembler-times {\t\.cfi_offset 132, -120} 1 } } */
> > /* { dg-final { scan-assembler-times {\t\.cfi_offset 131, -128} 1 } } */
> > /* { dg-final { scan-assembler-times {\t\.cfi_offset 130, -136} 1 } } */
> > -/* { dg-final { scan-assembler-times ".cfi_restore" 15} } */
> > +/* { dg-final { scan-assembler-times ".cfi_restore" 31 } } */
> > /* { dg-final { scan-assembler-times "pop(?:l|q)\[\\t \]*%(?:e|r)ax" 1 } }
> > */
> > /* { dg-final { scan-assembler-times "pop(?:l|q)\[\\t \]*%(?:e|r)bx" 1 } }
> > */
> > /* { dg-final { scan-assembler-times "pop(?:l|q)\[\\t \]*%(?:e|r)cx" 1 } }
> > */
> > --
> > 2.49.0
> >
--
H.J.
