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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-06-08 10:44:01 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-06-08 10:44:01 +0000 |
| commit | 8b59469ae1fb1868b69bb9508e60c568279f52f2 (patch) | |
| tree | 13f3d73c19b2fe99a8c17ba211278597eb2202f4 /gcc/expr.c | |
| parent | b58b1442f1fc311182dd662f0387b4e6a16a1045 (diff) | |
| download | gcc-8b59469ae1fb1868b69bb9508e60c568279f52f2.tar.gz | |
* expr.c (force_operand): Detect PIC address loads before
splitting arithmetic.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20331 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/expr.c b/gcc/expr.c index dc5e5ebaf19..058d12175db 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) |