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| author | danglin <danglin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-01-29 00:45:55 +0000 |
|---|---|---|
| committer | danglin <danglin@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-01-29 00:45:55 +0000 |
| commit | 6ea474750902fd354fa7e85c1dffd34487a1cfc5 (patch) | |
| tree | 14250d69bb7ca4ce0b44c6068676f6ad5414081b | |
| parent | 6bb7c2f2094e4737055ee6d4183290dfc015c2ed (diff) | |
| download | ppe42-gcc-6ea474750902fd354fa7e85c1dffd34487a1cfc5.tar.gz ppe42-gcc-6ea474750902fd354fa7e85c1dffd34487a1cfc5.zip | |
* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49304 138bc75d-0d04-0410-961f-82ee72b054a4
| -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 e1830f0b974..617f635dee0 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 2f3e100c8db..0506a496d47 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; diff --git a/gcc/loop.c b/gcc/loop.c index ebd59af59ff..5df08668977 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -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; |
