[Qemu-devel] [PATCH 7/8] tcg: Sanity check deposit inputs

[Richard Henderson]

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

Signed-off-by: Richard Henderson <address@hidden>
---
 tcg/tcg-op.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
index d2fb283..ecb1ac3 100644
--- a/tcg/tcg-op.h
+++ b/tcg/tcg-op.h
@@ -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;
-- 
1.7.11.4