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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-11-30 16:31:15 -0800 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2018-12-17 06:04:44 +0300 |
| commit | 75478279a0c1eafc7b69d5382356da138f58f1bd (patch) | |
| tree | 0ab141ce4f16715ada591a545d6f57f655dd486b /tcg/i386 | |
| parent | 3dbc8c61de4e0d0a2afe0897cda7ab28cd37a164 (diff) | |
| download | qemu-75478279a0c1eafc7b69d5382356da138f58f1bd.zip qemu-75478279a0c1eafc7b69d5382356da138f58f1bd.tar.gz qemu-75478279a0c1eafc7b69d5382356da138f58f1bd.tar.bz2 | |
tcg/i386: Implement INDEX_op_extr{lh}_i64_i32 for 32-bit guests
This preserves the invariant that all TCG_TYPE_I32 values are
zero-extended in the 64-bit host register.
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/i386')
| -rw-r--r-- | tcg/i386/tcg-target.h | 5 | ||||
| -rw-r--r-- | tcg/i386/tcg-target.inc.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h index 2441658..c523d5f 100644 --- a/tcg/i386/tcg-target.h +++ b/tcg/i386/tcg-target.h @@ -135,8 +135,9 @@ extern bool have_avx2; #define TCG_TARGET_HAS_direct_jump 1 #if TCG_TARGET_REG_BITS == 64 -#define TCG_TARGET_HAS_extrl_i64_i32 0 -#define TCG_TARGET_HAS_extrh_i64_i32 0 +/* Keep target addresses zero-extended in a register. */ +#define TCG_TARGET_HAS_extrl_i64_i32 (TARGET_LONG_BITS == 32) +#define TCG_TARGET_HAS_extrh_i64_i32 (TARGET_LONG_BITS == 32) #define TCG_TARGET_HAS_div2_i64 1 #define TCG_TARGET_HAS_rot_i64 1 #define TCG_TARGET_HAS_ext8s_i64 1 diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c index 695b406..fe864e9 100644 --- a/tcg/i386/tcg-target.inc.c +++ b/tcg/i386/tcg-target.inc.c @@ -2549,12 +2549,16 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_extu_i32_i64: case INDEX_op_ext32u_i64: + case INDEX_op_extrl_i64_i32: tcg_out_ext32u(s, a0, a1); break; case INDEX_op_ext_i32_i64: case INDEX_op_ext32s_i64: tcg_out_ext32s(s, a0, a1); break; + case INDEX_op_extrh_i64_i32: + tcg_out_shifti(s, SHIFT_SHR + P_REXW, a0, 32); + break; #endif OP_32_64(deposit): @@ -2918,6 +2922,7 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) case INDEX_op_neg_i64: case INDEX_op_not_i32: case INDEX_op_not_i64: + case INDEX_op_extrh_i64_i32: return &r_0; case INDEX_op_ext8s_i32: @@ -2933,6 +2938,7 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) case INDEX_op_ext32u_i64: case INDEX_op_ext_i32_i64: case INDEX_op_extu_i32_i64: + case INDEX_op_extrl_i64_i32: case INDEX_op_extract_i32: case INDEX_op_extract_i64: case INDEX_op_sextract_i32: |