From 2d67bd7be1d6a84cacc7e3e81edbbd2a28a1ecd7 Mon Sep 17 00:00:00 2001 From: John David Anglin Date: Tue, 29 Jan 2002 00:45:55 +0000 Subject: [PATCH] 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 --- gcc/ChangeLog | 7 +++++++ gcc/emit-rtl.c | 3 ++- gcc/loop.c | 3 +++ 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e1830f0b9743..617f635dee06 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2002-01-28 John David Anglin + + * 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 * 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 2f3e100c8db2..0506a496d47d 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 ebd59af59ff2..5df086689776 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; -- 2.47.3