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| author | John David Anglin <dave@hiauly1.hia.nrc.ca> | 2002-01-29 00:45:55 +0000 |
|---|---|---|
| committer | John David Anglin <danglin@gcc.gnu.org> | 2002-01-29 00:45:55 +0000 |
| commit | 2d67bd7be1d6a84cacc7e3e81edbbd2a28a1ecd7 (patch) | |
| tree | 14250d69bb7ca4ce0b44c6068676f6ad5414081b /gcc | |
| parent | 5a852b3eb004a08ff70cad765ec6a740e3a9db31 (diff) | |
| download | gcc-2d67bd7be1d6a84cacc7e3e81edbbd2a28a1ecd7.zip gcc-2d67bd7be1d6a84cacc7e3e81edbbd2a28a1ecd7.tar.gz gcc-2d67bd7be1d6a84cacc7e3e81edbbd2a28a1ecd7.tar.bz2 | |
emit-rtl.c (gen_rtx_REG): Check that the PIC_OFFSET_TABLE_REGNUM is a fixed register before returning...
* emit-rtl.c (gen_rtx_REG): Check that the PIC_OFFSET_TABLE_REGNUM
is a fixed register before returning pic_offset_table_rtx.
* loop.c (scan_loop): Don't hoist insns that set pic_offset_table_rtx
when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED is defined.
From-SVN: r49304
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/emit-rtl.c | 3 | ||||
| -rw-r--r-- | gcc/loop.c | 3 |
3 files changed, 12 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e1830f0..617f635 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2002-01-28 John David Anglin <dave@hiauly1.hia.nrc.ca> + + * emit-rtl.c (gen_rtx_REG): Check that the PIC_OFFSET_TABLE_REGNUM + is a fixed register before returning pic_offset_table_rtx. + * loop.c (scan_loop): Don't hoist insns that set pic_offset_table_rtx + when PIC_OFFSET_TABLE_REG_CALL_CLOBBERED is defined. + 2002-01-28 Jason Merrill <jason@redhat.com> * dwarf2.h (enum dwarf_call_frame_info): Add other DWARF 3 codes. diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 2f3e100..0506a49 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -411,7 +411,8 @@ gen_rtx_REG (mode, regno) if (regno == RETURN_ADDRESS_POINTER_REGNUM) return return_address_pointer_rtx; #endif - if (regno == PIC_OFFSET_TABLE_REGNUM) + if (regno == PIC_OFFSET_TABLE_REGNUM + && fixed_regs[PIC_OFFSET_TABLE_REGNUM]) return pic_offset_table_rtx; if (regno == STACK_POINTER_REGNUM) return stack_pointer_rtx; @@ -762,6 +762,9 @@ scan_loop (loop, flags) if (GET_CODE (p) == INSN && (set = single_set (p)) && GET_CODE (SET_DEST (set)) == REG +#ifdef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED + && SET_DEST (set) != pic_offset_table_rtx +#endif && ! regs->array[REGNO (SET_DEST (set))].may_not_optimize) { int tem1 = 0; |