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tcg: Split trunc_shr_i32 opcode into extr[lh]_i64_i32

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Rather than allow arbitrary shift+trunc, only concern ourselves
with low and high parts.  This is all that was being used anyway.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-07-24 07:16:00 -07:00
parent 870ad1547a
commit 609ad70562
15 changed files with 77 additions and 59 deletions
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3
tcg/tci/tcg-target.h
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@ -84,7 +84,8 @@
#define TCG_TARGET_HAS_mulsh_i32 0
#if TCG_TARGET_REG_BITS == 64
#define TCG_TARGET_HAS_trunc_shr_i64_i32 0
#define TCG_TARGET_HAS_extrl_i64_i32 0
#define TCG_TARGET_HAS_extrh_i64_i32 0
#define TCG_TARGET_HAS_bswap16_i64 1
#define TCG_TARGET_HAS_bswap32_i64 1
#define TCG_TARGET_HAS_bswap64_i64 1