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| author | Eric Botcazou <ebotcazou@libertysurf.fr> | 2004-09-21 07:57:55 +0200 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2004-09-21 05:57:55 +0000 |
| commit | 15ee342b73adc73b1c307c9b827bdd5341561bf1 (patch) | |
| tree | a2c3fb7f2b93b3b69ca5c7d0ec6c6e827461601e | |
| parent | 9b60dfd716eda005cfc592129da66acdb210ee22 (diff) | |
| download | gcc-15ee342b73adc73b1c307c9b827bdd5341561bf1.zip gcc-15ee342b73adc73b1c307c9b827bdd5341561bf1.tar.gz gcc-15ee342b73adc73b1c307c9b827bdd5341561bf1.tar.bz2 | |
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
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/regmove.c | 7 |
2 files changed, 9 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a610a8a..4e4d19a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-09-21 Eric Botcazou <ebotcazou@libertysurf.fr> + + PR rtl-optimization/17266 + * regmove.c (optimize_reg_copy_3): Make a new SUBREG for each insn. + 2004-09-21 Uros Bizjak <uros@kss-loka.si> PR rtl-optimization/14851 diff --git a/gcc/regmove.c b/gcc/regmove.c index 587b576..c08a720 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); |