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[Qemu-devel] [PATCH v5 18/19] tcg/sparc: Implement goto_ptr
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v5 18/19] tcg/sparc: Implement goto_ptr |
Date: |
Thu, 27 Apr 2017 14:00:05 +0200 |
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/sparc/tcg-target.h | 2 +-
tcg/sparc/tcg-target.inc.c | 11 ++++++++++-
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h
index 9348ddd..854a0af 100644
--- a/tcg/sparc/tcg-target.h
+++ b/tcg/sparc/tcg-target.h
@@ -123,7 +123,7 @@ extern bool use_vis3_instructions;
#define TCG_TARGET_HAS_muls2_i32 1
#define TCG_TARGET_HAS_muluh_i32 0
#define TCG_TARGET_HAS_mulsh_i32 0
-#define TCG_TARGET_HAS_goto_ptr 0
+#define TCG_TARGET_HAS_goto_ptr 1
#define TCG_TARGET_HAS_extrl_i64_i32 1
#define TCG_TARGET_HAS_extrh_i64_i32 1
diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c
index 3785d77..18afce2 100644
--- a/tcg/sparc/tcg-target.inc.c
+++ b/tcg/sparc/tcg-target.inc.c
@@ -1003,7 +1003,11 @@ static void tcg_target_qemu_prologue(TCGContext *s)
/* delay slot */
tcg_out_nop(s);
- /* No epilogue required. We issue ret + restore directly in the TB. */
+ /* Epilogue for goto_ptr. */
+ s->code_gen_epilogue = s->code_ptr;
+ tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I7, 8, RETURN);
+ /* delay slot */
+ tcg_out_movi_imm13(s, TCG_REG_O0, 0);
#ifdef CONFIG_SOFTMMU
build_trampolines(s);
@@ -1288,6 +1292,10 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_nop(s);
s->tb_jmp_reset_offset[a0] = tcg_current_code_size(s);
break;
+ case INDEX_op_goto_ptr:
+ tcg_out_arithi(s, TCG_REG_G0, a0, 0, JMPL);
+ tcg_out_nop(s);
+ break;
case INDEX_op_br:
tcg_out_bpcc(s, COND_A, BPCC_PT, arg_label(a0));
tcg_out_nop(s);
@@ -1513,6 +1521,7 @@ static const TCGTargetOpDef sparc_op_defs[] = {
{ INDEX_op_exit_tb, { } },
{ INDEX_op_goto_tb, { } },
{ INDEX_op_br, { } },
+ { INDEX_op_goto_ptr, { "r" } },
{ INDEX_op_ld8u_i32, { "r", "r" } },
{ INDEX_op_ld8s_i32, { "r", "r" } },
--
2.9.3
- Re: [Qemu-devel] [PATCH v5 09/19] target/arm: optimize indirect branches, (continued)
- [Qemu-devel] [PATCH v5 08/19] target/arm: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 04/19] exec-all: export tb_htable_lookup, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 07/19] tcg: export tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 12/19] target/i386: optimize indirect branches, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 16/19] tcg/ppc: Implement goto_ptr, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 15/19] tcg/i386: implement goto_ptr, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 18/19] tcg/sparc: Implement goto_ptr,
Richard Henderson <=
- [Qemu-devel] [PATCH v5 13/19] tb-hash: improve tb_jmp_cache hash function in user mode, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 19/19] tcg/s390: Implement goto_ptr, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 17/19] tcg/aarch64: Implement goto_ptr, Richard Henderson, 2017/04/27
- [Qemu-devel] [PATCH v5 14/19] target/alpha: Use tcg_gen_goto_ptr, Richard Henderson, 2017/04/27
- Re: [Qemu-devel] [PATCH v5 00/19] TCG cross-tb optimizations, no-reply, 2017/04/27
- [Qemu-devel] [PATCH v5+] TCG cross-tb optimizations, Emilio G. Cota, 2017/04/28