diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2002-02-23 09:56:22 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-02-23 09:56:22 +0100 |
| commit | 44c5edc005283d132f655130527e7eb08ededf51 (patch) | |
| tree | d02d18445ae8ee79fe6e154f3e219c28254f8792 /gcc/loop.c | |
| parent | 31e2a00de52815757a9e59c4c807ecd7b625d0c8 (diff) | |
| download | gcc-44c5edc005283d132f655130527e7eb08ededf51.zip gcc-44c5edc005283d132f655130527e7eb08ededf51.tar.gz gcc-44c5edc005283d132f655130527e7eb08ededf51.tar.bz2 | |
re PR rtl-optimization/5747 (ss20020218 fails to build binutils-2.11.93.0.2 on sparc-suse-linux - ICE in loop.c)
PR optimization/5747
* loop.c (scan_loop): Update reg info if move_movables created new
pseudos.
* gcc.dg/20020222-1.c: New test.
From-SVN: r49989
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 20 |
1 files changed, 19 insertions, 1 deletions
@@ -1102,7 +1102,25 @@ scan_loop (loop, flags) optimizing for code size. */ if (! optimize_size) - move_movables (loop, movables, threshold, insn_count); + { + move_movables (loop, movables, threshold, insn_count); + + /* Recalculate regs->array if move_movables has created new + registers. */ + if (max_reg_num () > regs->num) + { + loop_regs_scan (loop, 0); + for (update_start = loop_start; + PREV_INSN (update_start) + && GET_CODE (PREV_INSN (update_start)) != CODE_LABEL; + update_start = PREV_INSN (update_start)) + ; + update_end = NEXT_INSN (loop_end); + + reg_scan_update (update_start, update_end, loop_max_reg); + loop_max_reg = max_reg_num (); + } + } /* Now candidates that still are negative are those not moved. Change regs->array[I].set_in_loop to indicate that those are not actually |