From 15ee342b73adc73b1c307c9b827bdd5341561bf1 Mon Sep 17 00:00:00 2001 From: Eric Botcazou Date: Tue, 21 Sep 2004 07:57:55 +0200 Subject: [PATCH] re PR rtl-optimization/17266 (Libgfortran doesn't build) PR rtl-optimization/17266 * regmove.c (optimize_reg_copy_3): Make a new SUBREG for each insn. From-SVN: r87793 --- gcc/ChangeLog | 5 +++++ gcc/regmove.c | 7 ++++--- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a610a8ae07b..4e4d19ad394 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-09-21 Eric Botcazou + + PR rtl-optimization/17266 + * regmove.c (optimize_reg_copy_3): Make a new SUBREG for each insn. + 2004-09-21 Uros Bizjak PR rtl-optimization/14851 diff --git a/gcc/regmove.c b/gcc/regmove.c index 587b5767e3c..c08a72058b3 100644 --- a/gcc/regmove.c +++ b/gcc/regmove.c @@ -655,7 +655,7 @@ optimize_reg_copy_3 (rtx insn, rtx dest, rtx src) rtx src_reg = XEXP (src, 0); int src_no = REGNO (src_reg); int dst_no = REGNO (dest); - rtx p, set, subreg; + rtx p, set; enum machine_mode old_mode; if (src_no < FIRST_PSEUDO_REGISTER @@ -703,14 +703,15 @@ optimize_reg_copy_3 (rtx insn, rtx dest, rtx src) /* Now walk forward making additional replacements. We want to be able to undo all the changes if a later substitution fails. */ - subreg = gen_lowpart_SUBREG (old_mode, src_reg); while (p = NEXT_INSN (p), p != insn) { if (! INSN_P (p)) continue; /* Make a tentative change. */ - validate_replace_rtx_group (src_reg, subreg, p); + validate_replace_rtx_group (src_reg, + gen_lowpart_SUBREG (old_mode, src_reg), + p); } validate_replace_rtx_group (src, src_reg, insn); -- 2.30.2