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tcg/optimize: Optimize bswap 

Somehow we forgot these operations, once upon a time.
This will allow immediate stores to have their bswap
optimized away.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2018-11-20 08:53:34 +01:00
parent 9e821eab0a
commit 6498594c8e
1 changed files with 12 additions and 0 deletions
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12
tcg/optimize.c
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@ -353,6 +353,15 @@ static TCGArg do_constant_folding_2(TCGOpcode op, TCGArg x, TCGArg y)
CASE_OP_32_64(ext16u):
return (uint16_t)x;
CASE_OP_32_64(bswap16):
return bswap16(x);
CASE_OP_32_64(bswap32):
return bswap32(x);
case INDEX_op_bswap64_i64:
return bswap64(x);
case INDEX_op_ext_i32_i64:
case INDEX_op_ext32s_i64:
return (int32_t)x;
@ -1105,6 +1114,9 @@ void tcg_optimize(TCGContext *s)
CASE_OP_32_64(ext16s):
CASE_OP_32_64(ext16u):
CASE_OP_32_64(ctpop):
CASE_OP_32_64(bswap16):
CASE_OP_32_64(bswap32):
case INDEX_op_bswap64_i64:
case INDEX_op_ext32s_i64:
case INDEX_op_ext32u_i64:
case INDEX_op_ext_i32_i64: