From 8b015896c2a46c08cd90f2686a8fb533709e984c Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 8 Jun 1998 03:44:01 -0700 Subject: [PATCH] expr.c (force_operand): Detect PIC address loads before splitting arithmetic. * expr.c (force_operand): Detect PIC address loads before splitting arithmetic. From-SVN: r20331 --- gcc/ChangeLog | 11 ++++------- gcc/expr.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5ecea6e96031..ff1a1e4e3d84 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,12 +1,9 @@ -Mon Jun 8 09:22:38 PDT 1998 Jeff Law (law@cygnus.com) - - * version.c: Bump for snapshot. +Mon Jun 8 10:43:15 1998 Richard Henderson -Mon Jun 8 09:17:09 PDT 1998 Jeff Law (law@cygnus.com) + * expr.c (force_operand): Detect PIC address loads before + splitting arithmetic. - * version.c: Bump for snapshot. - -Mon Jun 8 02:09:47 PDT 1998 Jeff Law (law@cygnus.com) +Mon Jun 8 09:22:38 PDT 1998 Jeff Law (law@cygnus.com) * version.c: Bump for snapshot. diff --git a/gcc/expr.c b/gcc/expr.c index dc5e5ebaf191..058d12175dbd 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -4525,6 +4525,20 @@ force_operand (value, target) /* Use subtarget as the target for operand 0 of a binary operation. */ register rtx subtarget = (target != 0 && GET_CODE (target) == REG ? target : 0); + /* Check for a PIC address load. */ + if (flag_pic + && (GET_CODE (value) == PLUS || GET_CODE (value) == MINUS) + && XEXP (value, 0) == pic_offset_table_rtx + && (GET_CODE (XEXP (value, 1)) == SYMBOL_REF + || GET_CODE (XEXP (value, 1)) == LABEL_REF + || GET_CODE (XEXP (value, 1)) == CONST)) + { + if (!subtarget) + subtarget = gen_reg_rtx (GET_MODE (value)); + emit_move_insn (subtarget, value); + return subtarget; + } + if (GET_CODE (value) == PLUS) binoptab = add_optab; else if (GET_CODE (value) == MINUS) -- 2.47.2