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| author | Segher Boessenkool <segher@kernel.crashing.org> | 2019-05-07 00:01:27 +0200 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2019-05-07 00:01:27 +0200 |
| commit | e294835aed9d0ad48131b1c91c9a7c774ea64a37 (patch) | |
| tree | 1adf12b612d3c464f78f48fc5deecc0208ba2e44 /gcc | |
| parent | 3afd514bca6ea572e614b5289c4429ace693311b (diff) | |
| download | gcc-e294835aed9d0ad48131b1c91c9a7c774ea64a37.zip gcc-e294835aed9d0ad48131b1c91c9a7c774ea64a37.tar.gz gcc-e294835aed9d0ad48131b1c91c9a7c774ea64a37.tar.bz2 | |
rs6000: rs6000_dbx_register_number for fp/ap/mq
The frame pointer and the argument pointer aren't real registers. MQ
was a register on old POWER. All three are still used as arguments to
rs6000_dbx_register_number during initialisation. If we handle them
explicitly we can do a gcc_unreachable to catch other unexpected
registers.
* config/rs6000/rs6000.c (rs6000_dbx_register_number): Handle
FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM, and 64 (which was MQ).
From-SVN: r270925
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 19 |
2 files changed, 22 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 95bddb3..0bec5e9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-05-06 Segher Boessenkool <segher@kernel.crashing.org> + + * config/rs6000/rs6000.c (rs6000_dbx_register_number): Handle + FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM, and 64 (which was MQ). + 2019-05-06 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/88709 diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 23db130..1e5eef8 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -36309,7 +36309,15 @@ rs6000_dbx_register_number (unsigned int regno, unsigned int format) if (regno == TEXASR_REGNO) return 230; - return regno; + /* These do not make much sense. */ + if (regno == FRAME_POINTER_REGNUM) + return 111; + if (regno == ARG_POINTER_REGNUM) + return 67; + if (regno == 64) + return 100; + + gcc_unreachable (); #endif } @@ -36341,7 +36349,14 @@ rs6000_dbx_register_number (unsigned int regno, unsigned int format) if (regno == TEXASR_REGNO) return 116; - return regno; + if (regno == FRAME_POINTER_REGNUM) + return 111; + if (regno == ARG_POINTER_REGNUM) + return 67; + if (regno == 64) + return 64; + + gcc_unreachable (); } /* target hook eh_return_filter_mode */ |