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tcg: Sanity check deposit inputs

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Given these are constants, checking once here means everything
after can assume they're correct.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Richard Henderson 2012-09-21 17:18:15 -07:00 committed by Aurelien Jarno
parent c552d6c038
commit 717e70368b
1 changed files with 8 additions and 0 deletions
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8
tcg/tcg-op.h
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@ -2081,6 +2081,10 @@ static inline void tcg_gen_deposit_i32(TCGv_i32 ret, TCGv_i32 arg1,
uint32_t mask;
TCGv_i32 t1;
tcg_debug_assert(ofs < 32);
tcg_debug_assert(len <= 32);
tcg_debug_assert(ofs + len <= 32);
if (ofs == 0 && len == 32) {
tcg_gen_mov_i32(ret, arg2);
return;
@ -2112,6 +2116,10 @@ static inline void tcg_gen_deposit_i64(TCGv_i64 ret, TCGv_i64 arg1,
uint64_t mask;
TCGv_i64 t1;
tcg_debug_assert(ofs < 64);
tcg_debug_assert(len <= 64);
tcg_debug_assert(ofs + len <= 64);
if (ofs == 0 && len == 64) {
tcg_gen_mov_i64(ret, arg2);
return;