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| author | Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp> | 2022-05-13 22:29:22 +0900 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2022-05-26 09:40:41 -0700 |
| commit | 3397563ad6c8fc5d9675faf507e52dd2ed284202 (patch) | |
| tree | dfb1bf58f023dd822b0d77d94a8ebc8dc93c1ff6 /gcc | |
| parent | 9b251fe2e39a49c0d3ecd34cf8c5d55544efd159 (diff) | |
| download | gcc-3397563ad6c8fc5d9675faf507e52dd2ed284202.zip gcc-3397563ad6c8fc5d9675faf507e52dd2ed284202.tar.gz gcc-3397563ad6c8fc5d9675faf507e52dd2ed284202.tar.bz2 | |
xtensa: Fix instruction counting regarding block move expansion
This patch makes counting the number of instructions of the remainder
(modulo 4) part more accurate.
gcc/ChangeLog:
* config/xtensa/xtensa.cc (xtensa_expand_block_move):
Make instruction counting more accurate, and simplify emitting insns.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/xtensa/xtensa.cc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc index c5518ff..d2aabf3 100644 --- a/gcc/config/xtensa/xtensa.cc +++ b/gcc/config/xtensa/xtensa.cc @@ -1313,7 +1313,7 @@ xtensa_expand_block_move (rtx *operands) move_ratio = 4; if (optimize > 2) move_ratio = LARGEST_MOVE_RATIO; - num_pieces = (bytes / align) + (bytes % align); /* Close enough anyway. */ + num_pieces = (bytes / align) + ((bytes % align + 1) / 2); if (num_pieces > move_ratio) return 0; @@ -1350,7 +1350,7 @@ xtensa_expand_block_move (rtx *operands) temp[next] = gen_reg_rtx (mode[next]); x = adjust_address (src_mem, mode[next], offset_ld); - emit_insn (gen_rtx_SET (temp[next], x)); + emit_move_insn (temp[next], x); offset_ld += next_amount; bytes -= next_amount; @@ -1360,9 +1360,9 @@ xtensa_expand_block_move (rtx *operands) if (active[phase]) { active[phase] = false; - + x = adjust_address (dst_mem, mode[phase], offset_st); - emit_insn (gen_rtx_SET (x, temp[phase])); + emit_move_insn (x, temp[phase]); offset_st += amount[phase]; } |