diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 890c90c..0f50ac3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2006-03-27 Alan Modra <amodra@bigpond.net.au> + + PR target/26459 + * config/rs6000/rs6000.md (DF reg move peephole): Prevent + peephole removing spe frob_di_df_2. + 2006-03-26 Sebastian Pop <pop@cri.ensmp.fr> * tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS. diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 48e8df2..06670d2 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -9765,18 +9765,20 @@ "operands[0] = widen_memory_access (operands[0], V2DFmode, 0); operands[1] = gen_rtx_REG (V2DFmode, REGNO (operands[1]));") -;; after inserting conditional returns we can sometimes have +;; After inserting conditional returns we can sometimes have ;; unnecessary register moves. Unfortunately we cannot have a ;; modeless peephole here, because some single SImode sets have early ;; clobber outputs. Although those sets expand to multi-ppc-insn ;; sequences, using get_attr_length here will smash the operands ;; array. Neither is there an early_cobbler_p predicate. +;; Disallow subregs for E500 so we don't munge frob_di_df_2. (define_peephole2 [(set (match_operand:DF 0 "gpc_reg_operand" "") (match_operand:DF 1 "any_operand" "")) (set (match_operand:DF 2 "gpc_reg_operand" "") (match_dup 0))] - "peep2_reg_dead_p (2, operands[0])" + "!(TARGET_E500_DOUBLE && GET_CODE (operands[2]) == SUBREG) + && peep2_reg_dead_p (2, operands[0])" [(set (match_dup 2) (match_dup 1))]) (define_peephole2 |