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[Qemu-devel] [PULL 19/32] tcg/i386: Implement INDEX_op_extr{lh}_i64_i32
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PULL 19/32] tcg/i386: Implement INDEX_op_extr{lh}_i64_i32 for 32-bit guests |
Date: |
Thu, 13 Dec 2018 21:19:10 -0600 |
This preserves the invariant that all TCG_TYPE_I32 values are
zero-extended in the 64-bit host register.
Reviewed-by: Emilio G. Cota <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/i386/tcg-target.h | 5 +++--
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 2441658865..c523d5f5e1 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 695b406b4e..fe864e9ef9 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:
--
2.17.2
- [Qemu-devel] [PULL 08/32] tcg/s390: Remove retranslation code, (continued)
- [Qemu-devel] [PULL 08/32] tcg/s390: Remove retranslation code, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 10/32] tcg/mips: Remove retranslation code, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 09/32] tcg/sparc: Remove retranslation code, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 12/32] tcg/i386: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 11/32] tcg: Return success from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 14/32] tcg/arm: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 13/32] tcg/aarch64: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 15/32] tcg/ppc: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 17/32] tcg/i386: Propagate is64 to tcg_out_qemu_ld_direct, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 16/32] tcg/s390x: Return false on failure from patch_reloc, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 19/32] tcg/i386: Implement INDEX_op_extr{lh}_i64_i32 for 32-bit guests,
Richard Henderson <=
- [Qemu-devel] [PULL 18/32] tcg/i386: Propagate is64 to tcg_out_qemu_ld_slow_path, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 21/32] tcg/i386: Precompute all guest_base parameters, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 23/32] tcg: Clean up generic bswap32, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 29/32] qht-bench: document -p flag, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 22/32] tcg/i386: Add setup_guest_base_seg for FreeBSD, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 24/32] tcg: Clean up generic bswap64, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 20/32] tcg/i386: Assume 32-bit values are zero-extended, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 31/32] include: move exec/tb-hash-xx.h to qemu/xxhash.h, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 32/32] xxhash: match output against the original xxhash32, Richard Henderson, 2018/12/13
- [Qemu-devel] [PULL 27/32] tcg/mips: Improve the add2/sub2 command to use TCG_TARGET_REG_BITS, Richard Henderson, 2018/12/13