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| author | Bernd Schmidt <bernds@codesourcery.com> | 2010-08-02 09:51:39 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2010-08-02 09:51:39 +0000 |
| commit | 906668bb6f8c3f1eb4046dec89e9664554481eaa (patch) | |
| tree | 27d233f3de06e2d1b08481a8ff99d7a0b0370973 /gcc/final.c | |
| parent | f37e278a150cfdb1ead8b5e0662a27f4ee58ae89 (diff) | |
| download | gcc-906668bb6f8c3f1eb4046dec89e9664554481eaa.zip gcc-906668bb6f8c3f1eb4046dec89e9664554481eaa.tar.gz gcc-906668bb6f8c3f1eb4046dec89e9664554481eaa.tar.bz2 | |
final.c (final_scan_insn): Call CC_STATUS_INIT unconditionally.
* final.c (final_scan_insn): Call CC_STATUS_INIT unconditionally.
* config/arm/arm.c (thumb1_code): New variable.
(arm_override_options): Set it.
(thumb1_final_prescan_insn): Keep track of condition code status.
(arm_adjust_cost): For Thumb, try to keep cc-setting insns next to
jumps that depend on them.
* config/arm/arm.h (thumb1_code): Declare variable.
(struct machine_function): Guard with #ifndef GENERATOR_FILE. Add
members thumb1_cc_insn, thumb1_cc_op0, thumb1_cc_op1 and
thumb1_cc_mode.
(CC_STATUS_INIT): New macro.
* config/arm/constraints.md (Pd): New constraint.
* config/arm/predicates.md (noov_comparison_operator): New predicate.
* config/arm/arm.md (is_thumb1): New define_attr.
(conds): Set default to "clob" when generating Thumb1 code.
(thumb1_bicsi3): Renamed from bicsi3. All uses changed. Condition
code are set. Use two-operand assembly syntax.
(thumb1_subsi3_insn): Condition codes are set. Now a properly named
pattern.
(thumb1_andsi3_insn, thumb1_iorsi3_insn, thumb1_xorsi3_insn): Condition
codes are set. Use two-operand assembly syntax.
(zero_extendhisi splitter): Remove constraints.
(thumb1_movsi_insn, thumb1_movhi_insn, thumb1_movqi_insn, thumb1_movhf,
thumb1_movsf_insn): Set conds attribute as appropriate.
(cbranchsi4_insn): Use condition code status from struct
machine_function to determine whether the comparison can be eliminated.
Discourage the alternative using high registers.
(movsi_cbranchsi4, andsi3_cbranch, orrsi3_cbranch_scratch,
orrsi3_cbranch, xorsi3_cbranch_scratch, xorsi3_cbranch,
bicsi3_cbranch_scratch, bicsi3_cbranch, subsi3_cbranch_scratch,
subsi3_cbranch): Delete.
(movsi_cbranchsi4 peepholes): Rewrite to generate a sequence of
one subtract and one cbranch insn.
From-SVN: r162813
Diffstat (limited to 'gcc/final.c')
| -rw-r--r-- | gcc/final.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/gcc/final.c b/gcc/final.c index c35ed7b..f1cff34 100644 --- a/gcc/final.c +++ b/gcc/final.c @@ -99,8 +99,8 @@ along with GCC; see the file COPYING3. If not see #include "sdbout.h" #endif -/* If we aren't using cc0, CC_STATUS_INIT shouldn't exist. So define a - null default for it to save conditionalization later. */ +/* Most ports that aren't using cc0 don't need to define CC_STATUS_INIT. + So define a null default for it to save conditionalization later. */ #ifndef CC_STATUS_INIT #define CC_STATUS_INIT #endif @@ -2039,9 +2039,7 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED, #endif } } -#ifdef HAVE_cc0 CC_STATUS_INIT; -#endif if (!DECL_IGNORED_P (current_function_decl) && LABEL_NAME (insn)) debug_hooks->label (insn); |