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| author | Daniel Jacobowitz <dan@codesourcery.com> | 2010-07-03 01:00:37 +0000 |
|---|---|---|
| committer | Sandra Loosemore <sandra@gcc.gnu.org> | 2010-07-02 21:00:37 -0400 |
| commit | 73160ba9dc7be367d91f286eb5b07cb8af4a79bc (patch) | |
| tree | a0af68d8ac04351704260ecd0693e4526a5d9616 /gcc/config/arm/arm-modes.def | |
| parent | 400cfcf50e5aeae792e8ef39a743b1cb6fafedd5 (diff) | |
| download | gcc-73160ba9dc7be367d91f286eb5b07cb8af4a79bc.zip gcc-73160ba9dc7be367d91f286eb5b07cb8af4a79bc.tar.gz gcc-73160ba9dc7be367d91f286eb5b07cb8af4a79bc.tar.bz2 | |
arm.c (arm_canonicalize_comparison): Canonicalize DImode comparisons.
2010-07-02 Daniel Jacobowitz <dan@codesourcery.com>
Julian Brown <julian@codesourcery.com>
Sandra Loosemore <sandra@codesourcery.com>
gcc/
* config/arm/arm.c (arm_canonicalize_comparison): Canonicalize DImode
comparisons. Adjust to take both operands.
(arm_select_cc_mode): Handle DImode comparisons.
(arm_gen_compare_reg): Generate a scratch register for DImode
comparisons which require one. Use xor for Thumb equality checks.
(arm_const_double_by_immediates): New.
(arm_print_operand): Allow 'Q' and 'R' for constants.
(get_arm_condition_code): Handle new CC_CZmode and CC_NCVmode.
* config/arm/arm.h (CANONICALIZE_COMPARISON): Always use
arm_canonicalize_comparison.
* config/arm/arm-modes.def: Add CC_CZmode and CC_NCVmode.
* config/arm/arm-protos.h (arm_canonicalize_comparison): Update
prototype.
(arm_const_double_by_immediates): Declare.
* config/arm/constraints.md (Di): New constraint.
* config/arm/predicates.md (arm_immediate_di_operand)
(arm_di_operand, cmpdi_operand): New.
* config/arm/arm.md (cbranchdi4): Handle non-Cirrus also.
(*arm_cmpdi_insn, *arm_cmpdi_unsigned)
(*arm_cmpdi_zero, *thumb_cmpdi_zero): New insns.
(cstoredi4): Handle non-Cirrus also.
gcc/testsuite/
* gcc.c-torture/execute/20100416-1.c: New test case.
Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>
From-SVN: r161764
Diffstat (limited to 'gcc/config/arm/arm-modes.def')
| -rw-r--r-- | gcc/config/arm/arm-modes.def | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/config/arm/arm-modes.def b/gcc/config/arm/arm-modes.def index 55b98bc..e9825ed 100644 --- a/gcc/config/arm/arm-modes.def +++ b/gcc/config/arm/arm-modes.def @@ -39,10 +39,16 @@ ADJUST_FLOAT_FORMAT (HF, ((arm_fp16_format == ARM_FP16_FORMAT_ALTERNATIVE) CC_NOTBmode should be used if only the C flag is set as a not-borrow flag, after a subtraction. CC_Nmode should be used if only the N (sign) flag is set correctly + CC_CZmode should be used if only the C and Z flags are correct + (used for DImode unsigned comparisons). + CC_NCVmode should be used if only the N, C, and V flags are correct + (used for DImode signed comparisons). CCmode should be used otherwise. */ CC_MODE (CC_NOOV); CC_MODE (CC_Z); +CC_MODE (CC_CZ); +CC_MODE (CC_NCV); CC_MODE (CC_SWP); CC_MODE (CCFP); CC_MODE (CCFPE); |