OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

m68k: handle more cases of TLS symbols with offset

Browse Source 
PR target/46179
* config/m68k/m68k.h (FINAL_PRESCAN_INSN): Don't define.
* config/m68k/m68k.c (handle_move_double): Don't call
m68k_final_prescan_insn.
(m68k_adjust_decorated_operand): Renamed from
m68k_final_prescan_insn, remove first and third operand and
simplify.
(print_operand): Call it.
(print_operand_address): Call it.

PR target/46179
* gcc.target/m68k/tls-dimode.c: New file.

From-SVN: r263432
This commit is contained in:
Andreas Schwab 2018-08-08 20:01:26 +00:00 committed by Andreas Schwab
parent f10a91352f
commit ede9446c26
5 changed files with 63 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
gcc/ChangeLog
View File

@ -1,3 +1,15 @@
2018-08-08 Andreas Schwab <schwab@linux-m68k.org>
PR target/46179
* config/m68k/m68k.h (FINAL_PRESCAN_INSN): Don't define.
* config/m68k/m68k.c (handle_move_double): Don't call
m68k_final_prescan_insn.
(m68k_adjust_decorated_operand): Renamed from
m68k_final_prescan_insn, remove first and third operand and
simplify.
(print_operand): Call it.
(print_operand_address): Call it.
2018-08-08 Nathan Sidwell <nathan@acm.org>
* diagnostic.c (diagnostic_report_current_module): Use

68
gcc/config/m68k/m68k.c
View File

@ -2329,11 +2329,10 @@ m68k_unwrap_symbol (rtx orig, bool unwrap_reloc32_p)
return m68k_unwrap_symbol_1 (orig, unwrap_reloc32_p, NULL);
}
/* Prescan insn before outputing assembler for it. */
/* Adjust decorated address operand before outputing assembler for it. */
void
m68k_final_prescan_insn (rtx_insn *insn ATTRIBUTE_UNUSED,
rtx *operands, int n_operands)
static void
m68k_adjust_decorated_operand (rtx op)
{
int i;
@ -2355,45 +2354,38 @@ m68k_final_prescan_insn (rtx_insn *insn ATTRIBUTE_UNUSED,
to patch up anything outside of the operand. */
subrtx_var_iterator::array_type array;
for (i = 0; i < n_operands; ++i)
FOR_EACH_SUBRTX_VAR (iter, array, op, ALL)
{
rtx op;
op = operands[i];
FOR_EACH_SUBRTX_VAR (iter, array, op, ALL)
rtx x = *iter;
if (m68k_unwrap_symbol (x, true) != x)
{
rtx x = *iter;
if (m68k_unwrap_symbol (x, true) != x)
rtx plus;
gcc_assert (GET_CODE (x) == CONST);
plus = XEXP (x, 0);
if (GET_CODE (plus) == PLUS || GET_CODE (plus) == MINUS)
{
rtx plus;
rtx unspec;
rtx addend;
gcc_assert (GET_CODE (x) == CONST);
plus = XEXP (x, 0);
unspec = XEXP (plus, 0);
gcc_assert (GET_CODE (unspec) == UNSPEC);
addend = XEXP (plus, 1);
gcc_assert (CONST_INT_P (addend));
if (GET_CODE (plus) == PLUS || GET_CODE (plus) == MINUS)
{
rtx unspec;
rtx addend;
/* We now have all the pieces, rearrange them. */
unspec = XEXP (plus, 0);
gcc_assert (GET_CODE (unspec) == UNSPEC);
addend = XEXP (plus, 1);
gcc_assert (CONST_INT_P (addend));
/* Move symbol to plus. */
XEXP (plus, 0) = XVECEXP (unspec, 0, 0);
/* We now have all the pieces, rearrange them. */
/* Move plus inside unspec. */
XVECEXP (unspec, 0, 0) = plus;
/* Move symbol to plus. */
XEXP (plus, 0) = XVECEXP (unspec, 0, 0);
/* Move plus inside unspec. */
XVECEXP (unspec, 0, 0) = plus;
/* Move unspec to top level of const. */
XEXP (x, 0) = unspec;
}
iter.skip_subrtxes ();
/* Move unspec to top level of const. */
XEXP (x, 0) = unspec;
}
iter.skip_subrtxes ();
}
}
}
@ -3496,7 +3488,6 @@ handle_move_double (rtx operands[2],
/* Normal case: do the two words, low-numbered first. */
m68k_final_prescan_insn (NULL, operands, 2);
handle_movsi (operands);
/* Do the middle one of the three words for long double */
@ -3507,7 +3498,6 @@ handle_move_double (rtx operands[2],
if (addreg1)
handle_reg_adjust (addreg1, 4);
m68k_final_prescan_insn (NULL, middlehalf, 2);
handle_movsi (middlehalf);
}
@ -3518,7 +3508,6 @@ handle_move_double (rtx operands[2],
handle_reg_adjust (addreg1, 4);
/* Do that word. */
m68k_final_prescan_insn (NULL, latehalf, 2);
handle_movsi (latehalf);
/* Undo the adds we just did. */
@ -4464,6 +4453,9 @@ floating_exact_log2 (rtx x)
void
print_operand (FILE *file, rtx op, int letter)
{
if (op != NULL_RTX)
m68k_adjust_decorated_operand (op);
if (letter == '.')
{
if (MOTOROLA)
@ -4712,6 +4704,8 @@ print_operand_address (FILE *file, rtx addr)
{
struct m68k_address address;
m68k_adjust_decorated_operand (addr);
if (!m68k_decompose_address (QImode, addr, true, &address))
gcc_unreachable ();

3
gcc/config/m68k/m68k.h
View File

@ -867,9 +867,6 @@ do { if (cc_prev_status.flags & CC_IN_68881) \
assemble_name ((FILE), (NAME)), \
fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
#define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \
m68k_final_prescan_insn (INSN, OPVEC, NOPERANDS)
/* On the 68000, we use several CODE characters:
'.' for dot needed in Motorola-style opcode names.
'-' for an operand pushing on the stack:

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2018-08-08 Andreas Schwab <schwab@linux-m68k.org>
PR target/46179
* gcc.target/m68k/tls-dimode.c: New file.
2018-08-08 Nathan Sidwell <nathan@acm.org>
* c-c++-common/inc-from-1a.h, c-c++-common/inc-from-1b.h,

15
gcc/testsuite/gcc.target/m68k/tls-dimode.c Normal file
View File

@ -0,0 +1,15 @@
/* { dg-do compile } */
/* { dg-skip-if "" { ! *-linux-* } } */
/* { dg-options "-w -O2" } */
__thread long long ti;
void f (void)
{
ti++;
}
void g (long long x)
{
ti = x;
}