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| author | rearnsha <rearnsha@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-19 23:00:31 +0000 |
|---|---|---|
| committer | rearnsha <rearnsha@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-19 23:00:31 +0000 |
| commit | 2a977b7824e6cb645bd485be19261468d38b6b32 (patch) | |
| tree | 71f3aa2a739ae512fbd09b5699bb5b94b922b0ca /gcc/config/arm/constraints.md | |
| parent | 0061967e96f53e8d00d9b2e906ebda3653f0f90e (diff) | |
| download | gcc-2a977b7824e6cb645bd485be19261468d38b6b32.tar.gz | |
PR target/44072
* arm.md (cmpsi2_addneg): Prefer emitting adds to subs with a negative
immediate.
* constraints.md (Pw, Px): New constraints.
* thumb2.md (cmpsi2_addneg peephole2): New peepholes.
* gcc.target/arm/thumb2-cmpneg2add-1.c: New test.
* gcc.target/arm/thumb2-cmpneg2add-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161040 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/arm/constraints.md')
| -rw-r--r-- | gcc/config/arm/constraints.md | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/config/arm/constraints.md b/gcc/config/arm/constraints.md index 575d0ac4e9a..6d6c77d4b66 100644 --- a/gcc/config/arm/constraints.md +++ b/gcc/config/arm/constraints.md @@ -31,7 +31,7 @@ ;; The following multi-letter normal constraints have been used: ;; in ARM/Thumb-2 state: Da, Db, Dc, Dn, Dl, DL, Dv, Dy ;; in Thumb-1 state: Pa, Pb -;; in Thumb-2 state: Ps, Pt, Pu, Pv +;; in Thumb-2 state: Ps, Pt, Pu, Pv, Pw, Px ;; The following memory constraints have been used: ;; in ARM/Thumb-2 state: Q, Ut, Uv, Uy, Un, Um, Us @@ -168,6 +168,16 @@ (and (match_code "const_int") (match_test "TARGET_THUMB2 && ival >= -255 && ival <= 0"))) +(define_constraint "Pw" + "@internal In Thumb-2 state a constant in the range -255 to -1" + (and (match_code "const_int") + (match_test "TARGET_THUMB2 && ival >= -255 && ival <= -1"))) + +(define_constraint "Px" + "@internal In Thumb-2 state a constant in the range -7 to -1" + (and (match_code "const_int") + (match_test "TARGET_THUMB2 && ival >= -7 && ival <= -1"))) + (define_constraint "G" "In ARM/Thumb-2 state a valid FPA immediate constant." (and (match_code "const_double") |