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| author | Richard Henderson <rth@cygnus.com> | 1998-06-08 03:44:01 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 1998-06-08 03:44:01 -0700 |
| commit | 8b015896c2a46c08cd90f2686a8fb533709e984c (patch) | |
| tree | 13f3d73c19b2fe99a8c17ba211278597eb2202f4 /gcc | |
| parent | 8bc3afab6f4a17c290029f726a3d3295c99b056b (diff) | |
| download | gcc-8b015896c2a46c08cd90f2686a8fb533709e984c.zip gcc-8b015896c2a46c08cd90f2686a8fb533709e984c.tar.gz gcc-8b015896c2a46c08cd90f2686a8fb533709e984c.tar.bz2 | |
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
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 11 | ||||
| -rw-r--r-- | gcc/expr.c | 14 |
2 files changed, 18 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5ecea6e..ff1a1e4 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 <rth@cygnus.com> -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. @@ -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) |