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| author | eager <eager@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-02-27 17:21:40 +0000 |
|---|---|---|
| committer | eager <eager@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-02-27 17:21:40 +0000 |
| commit | e249ec67f2b6d42ff354f7545296d1bc23bdc379 (patch) | |
| tree | fabd4d89ef4b2a9e7a14dd6c7eb4d3bdaffcb7e3 | |
| parent | dcd56d11f3153d8a82722fca448dd20ff6169bd9 (diff) | |
| download | gcc-e249ec67f2b6d42ff354f7545296d1bc23bdc379.tar.gz | |
Avoid pcmpe insns when not valuable.
* gcc/config/microblaze/microblaze.c (microblaze_emit_compare):
Use xor for EQ/NE comparisions
* gcc/config/microblaze/microblaze.md (cstoresf4): Add constraints
(cbranchsf4): Adjust operator to comparison_operator
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@196315 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/microblaze/microblaze.c | 17 | ||||
| -rw-r--r-- | gcc/config/microblaze/microblaze.md | 10 |
3 files changed, 14 insertions, 20 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 51a19f56aaa..4ebe5039cd2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2013-02-27 Edgar E. Iglesias <edgar.iglesias@gmail.com> + + * config/microblaze/microblaze.c (microblaze_emit_compare): + Use xor for EQ/NE comparisions + * config/microblaze/microblaze.md (cstoresf4): Add constraints + (cbranchsf4): Adjust operator to comparison_operator + 2013-02-27 Jakub Jelinek <jakub@redhat.com> PR middle-end/56461 diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c index fc0296e2c15..f45d30cf450 100644 --- a/gcc/config/microblaze/microblaze.c +++ b/gcc/config/microblaze/microblaze.c @@ -2842,21 +2842,8 @@ microblaze_emit_compare (enum machine_mode mode, rtx cmp, enum rtx_code *cmp_cod if (code == EQ || code == NE) { - if (TARGET_PATTERN_COMPARE && GET_CODE(cmp_op1) == REG) - { - if (code == EQ) - { - emit_insn (gen_seq_internal_pat (comp_reg, cmp_op0, cmp_op1)); - *cmp_code = NE; - } - else - { - emit_insn (gen_sne_internal_pat (comp_reg, cmp_op0, cmp_op1)); - } - } - else - /* Use xor for equal/not-equal comparison. */ - emit_insn (gen_xorsi3 (comp_reg, cmp_op0, cmp_op1)); + /* Use xor for equal/not-equal comparison. */ + emit_insn (gen_xorsi3 (comp_reg, cmp_op0, cmp_op1)); } else if (code == GT || code == GTU || code == LE || code == LEU) { diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md index 1b4200307cb..339186455ba 100644 --- a/gcc/config/microblaze/microblaze.md +++ b/gcc/config/microblaze/microblaze.md @@ -1637,10 +1637,10 @@ ;; Setting a register from an floating point comparison. ;;---------------------------------------------------------------- (define_insn "cstoresf4" - [(set (match_operand:SI 0 "register_operand") - (match_operator:SI 1 "ordered_comparison_operator" - [(match_operand:SF 2 "register_operand") - (match_operand:SF 3 "register_operand")]))] + [(set (match_operand:SI 0 "register_operand" "=r") + (match_operator 1 "comparison_operator" + [(match_operand:SF 2 "register_operand" "r") + (match_operand:SF 3 "register_operand" "r")]))] "TARGET_HARD_FLOAT" "fcmp.%C1\t%0,%3,%2" [(set_attr "type" "fcmp") @@ -1667,7 +1667,7 @@ (define_expand "cbranchsf4" [(set (pc) - (if_then_else (match_operator:SI 0 "ordered_comparison_operator" + (if_then_else (match_operator 0 "comparison_operator" [(match_operand:SF 1 "register_operand") (match_operand:SF 2 "register_operand")]) (label_ref (match_operand 3 "")) |