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| author | Jeff Law <law@redhat.com> | 2020-02-12 14:52:24 -0700 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 2020-02-12 14:52:24 -0700 |
| commit | 985873e5087843a7c3d38266d21456259ac55542 (patch) | |
| tree | ca2f8880b1c4e3b4347aba85d17b731a2f056aa5 | |
| parent | 99bbab9f77424c6387e7dfcba5c62937a8cff841 (diff) | |
| download | gcc-985873e5087843a7c3d38266d21456259ac55542.zip gcc-985873e5087843a7c3d38266d21456259ac55542.tar.gz gcc-985873e5087843a7c3d38266d21456259ac55542.tar.bz2 | |
Combine the two H8 mode shortening peepholes into a single peephole
* config/h8300/h8300.md (comparison shortening peepholes): Use
a mode iterator to merge the HImode and SImode peepholes.
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.md | 41 |
2 files changed, 13 insertions, 33 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b566ca4..fe42cee 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2020-02-12 Jeff Law <law@redhat.com> + + * config/h8300/h8300.md (comparison shortening peepholes): Use + a mode iterator to merge the HImode and SImode peepholes. + 2020-02-12 Jakub Jelinek <jakub@redhat.com> PR middle-end/93663 diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index dcc9c36..f12eb46 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -5366,38 +5366,13 @@ { operands[5] = GEN_INT (- INTVAL (operands[1])); }) -;; Narrow the mode of testing if possible. -(define_peephole2 - [(set (match_operand:HI 0 "register_operand" "") - (and:HI (match_dup 0) - (match_operand:HI 1 "const_int_qi_operand" ""))) - (set (cc0) (compare (match_dup 0) - (const_int 0))) - (set (pc) - (if_then_else (match_operator 3 "eqne_operator" - [(cc0) (const_int 0)]) - (label_ref (match_operand 2 "" "")) - (pc)))] - "peep2_reg_dead_p (2, operands[0])" - [(set (match_dup 4) - (and:QI (match_dup 4) - (match_dup 5))) - (set (cc0) (compare (match_dup 4) - (const_int 0))) - (set (pc) - (if_then_else (match_op_dup 3 [(cc0) (const_int 0)]) - (label_ref (match_dup 2)) - (pc)))] - { - operands[4] = gen_rtx_REG (QImode, REGNO (operands[0])); - operands[5] = gen_int_mode (INTVAL (operands[1]), QImode); - }) +;; Narrow the mode of testing if possible. (define_peephole2 - [(set (match_operand:SI 0 "register_operand" "") - (and:SI (match_dup 0) - (match_operand:SI 1 "const_int_qi_operand" ""))) + [(set (match_operand:HSI 0 "register_operand" "") + (and:HSI (match_dup 0) + (match_operand:HSI 1 "const_int_qi_operand" ""))) (set (cc0) (compare (match_dup 0) (const_int 0))) (set (pc) @@ -5406,11 +5381,10 @@ (label_ref (match_operand 2 "" "")) (pc)))] "((const_int_qi_operand (operands[1], QImode) - || const_int_hi_operand (operands[1], HImode)) + || (GET_MODE (operands[0]) == SImode + && const_int_hi_operand (operands[1], HImode))) && peep2_reg_dead_p (2, operands[0]))" - [(set (match_dup 4) - (and:QI (match_dup 4) - (match_dup 5))) + [(set (match_dup 4) (match_dup 6)) (set (cc0) (compare (match_dup 4) (const_int 0))) (set (pc) @@ -5423,6 +5397,7 @@ mode = const_int_qi_operand (operands[1], QImode) ? QImode : HImode; operands[4] = gen_rtx_REG (mode, REGNO (operands[0])); operands[5] = gen_int_mode (INTVAL (operands[1]), mode); + operands[6] = gen_rtx_AND (mode, operands[4], operands[5]); }) ;; These triggers right at the end of allocation of locals in the |