diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/pa/pa.md | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6d167bc..6df6abd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-09-09 John David Anglin <dave@hiauly1.hia.nrc.ca> + + * pa.md (exception_receiver, builtin_setjmp_receiver): Add blockage + on TARGET_64BIT before pic register restore. + 2002-09-09 David Edelsohn <edelsohn@gnu.org> * doc/tm.texi (TARGET_HAVE_SRODATA_SECTION): New description. diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md index 29fe1c8..5da3806 100644 --- a/gcc/config/pa/pa.md +++ b/gcc/config/pa/pa.md @@ -7455,6 +7455,12 @@ "flag_pic" " { + /* On the 64-bit port, we need a blockage because there is + confusion regarding the dependence of the restore on the + frame pointer. As a result, the frame pointer and pic + register restores sometimes are interchanged erroneously. */ + if (TARGET_64BIT) + emit_insn (gen_blockage ()); /* Restore the PIC register using hppa_pic_save_rtx (). The PIC register is not saved in the frame in 64-bit ABI. */ emit_move_insn (pic_offset_table_rtx, hppa_pic_save_rtx ()); @@ -7466,6 +7472,8 @@ "flag_pic" " { + if (TARGET_64BIT) + emit_insn (gen_blockage ()); /* Restore the PIC register. Hopefully, this will always be from a stack slot. The only registers that are valid after a builtin_longjmp are the stack and frame pointers. */ |