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| author | Kazu Hirata <kazu@cs.umass.edu> | 2003-04-02 21:43:35 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2003-04-02 21:43:35 +0000 |
| commit | 8fc9a7ba7b2f94550dcc912b917d7429ea1f081f (patch) | |
| tree | 9de7417b0228b036232aa7b65b047123d324e8fe | |
| parent | 496e1c4bdf3fdd04766aad7013ae8d63b7dcdf0e (diff) | |
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* config/h8300/h8300.md (a peephole2): Tighten the condition.
From-SVN: r65174
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.md | 14 |
2 files changed, 15 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d7f2b95..bfbcc94 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2003-04-02 Kazu Hirata <kazu@cs.umass.edu> + + * config/h8300/h8300.md (a peephole2): Tighten the condition. + 2003-04-02 Richard Henderson <rth@redhat.com> * longlong.h (umul_ppmm) [alpha]: Use __builtin_alpha_umulh. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index 4b54543..a4c76f9 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -4308,7 +4308,16 @@ gen_rtx_EQ (VOIDmode, cc0_rtx, const0_rtx)); operands[5] = GEN_INT (exact_log2 (INTVAL (operands[1]) + 1));") -;; Transform A <= 1 to (A & 0xfffffffe) == 0. +;; Transform +;; +;; cmp.l #15,er0 +;; bhi .L1 +;; +;; into +;; +;; and #240,r0l +;; mov.l er0,er0 +;; bne .L1 (define_peephole2 [(set (cc0) @@ -4321,8 +4330,7 @@ (pc)))] "(TARGET_H8300H || TARGET_H8300S) && peep2_reg_dead_p (1, operands[0]) - && (INTVAL (operands[1]) == 1 - || INTVAL (operands[1]) == 3 + && ((TARGET_H8300H && INTVAL (operands[1]) == 3) || INTVAL (operands[1]) == 7 || INTVAL (operands[1]) == 15 || INTVAL (operands[1]) == 31 |