re PR rtl-optimization/60651 (Mode switching instructions are sometimes emitted in the wrong order)
gcc:
PR rtl-optimization/60651
* mode-switching.c (optimize_mode_switching): Make sure to emit
sets of a lower numbered entity before sets of a higher numbered
entity to a mode of the same or lower priority.
When creating a seginfo for a basic block that starts with a code
label, move the insertion point past the code label.
(new_seginfo): Document and enforce requirement that
NOTE_INSN_BASIC_BLOCK only appears for empty blocks.
* doc/tm.texi.in: Document ordering constraint for emitted mode sets.
* doc/tm.texi: Regenerate.
gcc/testsuite:
PR rtl-optimization/60651
* gcc.target/epiphany/mode-switch.c: New test.
From-SVN: r209312