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pa.md (exception_receiver, [...]): Add blockage on TARGET_64BIT before pic register restore. 

* pa.md (exception_receiver, builtin_setjmp_receiver): Add blockage
	on TARGET_64BIT before pic register restore.

From-SVN: r56985
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John David Anglin 2002-09-09 21:34:48 +00:00 committed by John David Anglin
parent 9251acb480
commit 0c263f4ed2
2 changed files with 13 additions and 0 deletions
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5
gcc/ChangeLog
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@ -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.

8
gcc/config/pa/pa.md
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@ -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. */