Hello Ulrich, Thanks.
> > /* Use gcc hard register numbering for eh_frame. */ -#define
> >DWARF_FRAME_REGNUM(REGNO) (REGNO)
> >+#define DWARF_FRAME_REGNUM(REGNO) \
> >+ ((REGNO) >= FIRST_SPE_HIGH_REGNO ? ((REGNO) -
> FIRST_SPE_HIGH_REGNO +
> >+1200) : (REGNO))
>
> Any reason for not using SPE_HIGH_REGNO_P here, just in case we do get
> other hard registers at some point?
Yes, we can use it. I just have to move the definition of "SPE_HIGH_REGNO_P"
macro before "DWARF_FRAME_REGNUM" macro definition.
[Previously, I had defined and placed "SPE_HIGH_REGNO_P" macro along with
similar macros "ALTIVEC_REGNO_P" etc.]
I had updated the patch as required (For this last change, I have
checked/tested only the builds: ppc64 trunk, e500v2 v4.9.1 bareboard & linux
build).
PR target/60102
[libgcc]
2014-07-31 Rohit <rohitarul...@freescale.com>
* config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Update
based on change in SPE high register numbers and 3 HTM registers.
[gcc]
2014-07-31 Rohit <rohitarul...@freescale.com>
* config/rs6000/rs6000.c
(rs6000_reg_names) : Add SPE high register names.
(alt_reg_names) : Likewise.
(rs6000_dwarf_register_span) : For SPE high registers, replace
dwarf register numbers with GCC hard register numbers.
(rs6000_init_dwarf_reg_sizes_extra) : Likewise.
(rs6000_dbx_register_number): For SPE high registers, return dwarf
register number for the corresponding GCC hard register number.
* config/rs6000/rs6000.h
(FIRST_PSEUDO_REGISTER) : Update based on 32 newly added GCC hard
register numbers for SPE high registers.
(DWARF_FRAME_REGISTERS) : Likewise.
(DWARF_REG_TO_UNWIND_COLUMN) : Likewise.
(DWARF_FRAME_REGNUM) : Likewise.
(FIXED_REGISTERS) : Likewise.
(CALL_USED_REGISTERS) : Likewise.
(CALL_REALLY_USED_REGISTERS) : Likewise.
(REG_ALLOC_ORDER) : Likewise.
(enum reg_class) : Likewise.
(REG_CLASS_NAMES) : Likewise.
(REG_CLASS_CONTENTS) : Likewise.
(SPE_HIGH_REGNO_P) : New macro to identify SPE high registers.
* gcc.target/powerpc/pr60102.c: New testcase.
Regards,
Rohit
pr60102.patch
Description: pr60102.patch
