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[Qemu-devel] [PATCH RFC 5/9] tcg/i386: implement ext_i32_i64 and extu_i3
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH RFC 5/9] tcg/i386: implement ext_i32_i64 and extu_i32_i64 ops |
Date: |
Wed, 15 Jul 2015 13:03:15 +0200 |
Implementing them as real ops means they can't be optimized out by
the register allocator or the optimizer.
Cc: Paolo Bonzini <address@hidden>
Cc: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
tcg/i386/tcg-target.c | 5 +++++
tcg/i386/tcg-target.h | 4 ++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index ff4d9cf..637b1fb 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -2034,9 +2034,11 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode
opc,
case INDEX_op_bswap64_i64:
tcg_out_bswap64(s, args[0]);
break;
+ case INDEX_op_extu_i32_i64:
case INDEX_op_ext32u_i64:
tcg_out_ext32u(s, args[0], args[1]);
break;
+ case INDEX_op_ext_i32_i64:
case INDEX_op_ext32s_i64:
tcg_out_ext32s(s, args[0], args[1]);
break;
@@ -2171,6 +2173,9 @@ static const TCGTargetOpDef x86_op_defs[] = {
{ INDEX_op_ext16u_i64, { "r", "r" } },
{ INDEX_op_ext32u_i64, { "r", "r" } },
+ { INDEX_op_ext_i32_i64, { "r", "r" } },
+ { INDEX_op_extu_i32_i64, { "r", "r" } },
+
{ INDEX_op_deposit_i64, { "Q", "0", "Q" } },
{ INDEX_op_movcond_i64, { "r", "r", "re", "r", "0" } },
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 274c97f..16f3949 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -131,8 +131,8 @@ extern bool have_bmi1;
/* size changing optional ops */
#define TCG_TARGET_HAS_trunc_shr_i64_i32 0
-#define TCG_TARGET_HAS_ext_i32_i64 0
-#define TCG_TARGET_HAS_extu_i32_i64 0
+#define TCG_TARGET_HAS_ext_i32_i64 1
+#define TCG_TARGET_HAS_extu_i32_i64 1
#endif
--
2.1.4
[Qemu-devel] [PATCH RFC 7/9] tcg: replace ext/u_i32_i64 by a mov when not implemented, Aurelien Jarno, 2015/07/15
[Qemu-devel] [PATCH RFC 9/9] tcg: update README about size changing ops, Aurelien Jarno, 2015/07/15
[Qemu-devel] [PATCH RFC 4/9] tcg/optimize: add optimizations for ext_i32_i64 and extu_i32_i64 ops, Aurelien Jarno, 2015/07/15