From 036aadfc777a9b86ae65394c7cc1116688fc90a9 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Sun, 26 Mar 2006 22:48:22 +0000 Subject: [PATCH] re PR target/26459 (gcc fails to build on powerpc e500-double targets) PR target/26459 * config/rs6000/rs6000.md (DF reg move peephole): Prevent peephole removing spe frob_di_df_2. From-SVN: r112400 --- gcc/ChangeLog | 6 ++++++ gcc/config/rs6000/rs6000.md | 6 ++++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 890c90c7f53..0f50ac3d6b7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2006-03-27 Alan Modra + + PR target/26459 + * config/rs6000/rs6000.md (DF reg move peephole): Prevent + peephole removing spe frob_di_df_2. + 2006-03-26 Sebastian Pop * 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 48e8df2e1f0..06670d2ac36 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 -- 2.30.2