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i386.c (ix86_compare_emitted): Remove. 

2009-04-07  Paolo Bonzini  <bonzini@gnu.org>

        * config/i386/i386.c (ix86_compare_emitted): Remove.
        (ix86_expand_compare, ix86_expand_branch): Handle MODE_CC
        ix86_compare_op0 like ix86_compare_emitted used to be handled.
        * config/i386/i386.h (ix86_compare_emitted): Remove.
        * config/i386/i386.md (stack_protect_test): Set ix86_compare_op0
        instead of ix86_compare_emitted.
        * config/i386/sync.md (sync_compare_and_swap_cc): Likewise.

From-SVN: r145665
This commit is contained in:
Paolo Bonzini 2009-04-07 12:26:23 +00:00 committed by Paolo Bonzini
parent d5859bf49d
commit 67b8f1c149
5 changed files with 23 additions and 20 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2009-04-07 Paolo Bonzini <bonzini@gnu.org>
* config/i386/i386.c (ix86_compare_emitted): Remove.
(ix86_expand_compare, ix86_expand_branch): Handle MODE_CC
ix86_compare_op0 like ix86_compare_emitted used to be handled.
* config/i386/i386.h (ix86_compare_emitted): Remove.
* config/i386/i386.md (stack_protect_test): Set ix86_compare_op0
instead of ix86_compare_emitted.
* config/i386/sync.md (sync_compare_and_swap_cc): Likewise.
2009-04-07 Andrew Stubbs <ams@codesourcery.com>
* config.gcc (sh-*-*): Add sysroot-suffix.h to tm_file.

21
gcc/config/i386/i386.c
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@ -1702,7 +1702,6 @@ int const svr4_dbx_register_map[FIRST_PSEUDO_REGISTER] =
rtx ix86_compare_op0 = NULL_RTX;
rtx ix86_compare_op1 = NULL_RTX;
rtx ix86_compare_emitted = NULL_RTX;
/* Define parameter passing and return registers. */
@ -14271,11 +14270,9 @@ ix86_expand_compare (enum rtx_code code, rtx *second_test, rtx *bypass_test)
if (bypass_test)
*bypass_test = NULL_RTX;
if (ix86_compare_emitted)
{
ret = gen_rtx_fmt_ee (code, VOIDmode, ix86_compare_emitted, const0_rtx);
ix86_compare_emitted = NULL_RTX;
}
if (GET_MODE_CLASS (GET_MODE (ix86_compare_op0)) == MODE_CC)
ret = gen_rtx_fmt_ee (code, VOIDmode, ix86_compare_op0, ix86_compare_op1);
else if (SCALAR_FLOAT_MODE_P (GET_MODE (op0)))
{
gcc_assert (!DECIMAL_FLOAT_MODE_P (GET_MODE (op0)));
@ -14304,12 +14301,6 @@ ix86_expand_branch (enum rtx_code code, rtx label)
{
rtx tmp;
/* If we have emitted a compare insn, go straight to simple.
ix86_expand_compare won't emit anything if ix86_compare_emitted
is non NULL. */
if (ix86_compare_emitted)
goto simple;
switch (GET_MODE (ix86_compare_op0))
{
case QImode:
@ -14510,7 +14501,11 @@ ix86_expand_branch (enum rtx_code code, rtx label)
}
default:
gcc_unreachable ();
/* If we have already emitted a compare insn, go straight to simple.
ix86_expand_compare won't emit anything if ix86_compare_emitted
is non NULL. */
gcc_assert (GET_MODE_CLASS (GET_MODE (ix86_compare_op0)) == MODE_CC);
goto simple;
}
}

1
gcc/config/i386/i386.h
View File

@ -2333,7 +2333,6 @@ extern enum reg_class const regclass_map[FIRST_PSEUDO_REGISTER];
extern rtx ix86_compare_op0; /* operand 0 for comparisons */
extern rtx ix86_compare_op1; /* operand 1 for comparisons */
extern rtx ix86_compare_emitted;
/* To properly truncate FP values into integers, we need to set i387 control
word. We can't emit proper mode switching code before reload, as spills

6
gcc/config/i386/i386.md
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@ -21954,9 +21954,6 @@
""
{
rtx flags = gen_rtx_REG (CCZmode, FLAGS_REG);
ix86_compare_op0 = operands[0];
ix86_compare_op1 = operands[1];
ix86_compare_emitted = flags;
#ifdef TARGET_THREAD_SSP_OFFSET
if (TARGET_64BIT)
@ -21971,6 +21968,9 @@
else
emit_insn (gen_stack_protect_test_si (flags, operands[0], operands[1]));
#endif
ix86_compare_op0 = flags;
ix86_compare_op1 = const0_rtx;
emit_jump_insn (gen_beq (operands[2]));
DONE;
})

5
gcc/config/i386/sync.md
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@ -168,9 +168,8 @@
"TARGET_CMPXCHG"
{
operands[4] = gen_rtx_REG (CCZmode, FLAGS_REG);
ix86_compare_op0 = operands[3];
ix86_compare_op1 = NULL;
ix86_compare_emitted = operands[4];
ix86_compare_op0 = operands[4];
ix86_compare_op1 = const0_rtx;
if ((<MODE>mode == DImode && !TARGET_64BIT) || <MODE>mode == TImode)
{
enum machine_mode hmode = <MODE>mode == DImode ? SImode : DImode;