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[Qemu-devel] [PULL 14/26] tcg/sparc: Implement goto_ptr
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PULL 14/26] tcg/sparc: Implement goto_ptr |
Date: |
Mon, 5 Jun 2017 09:52:21 -0700 |
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" } },
--
2.9.4
- [Qemu-devel] [PULL 02/26] tcg/sparc: Use the proper compilation flags for 32-bit, (continued)
- [Qemu-devel] [PULL 02/26] tcg/sparc: Use the proper compilation flags for 32-bit, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 03/26] qemu/atomic: Loosen restrictions for 64-bit ILP32 hosts, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 04/26] tcg: Introduce goto_ptr opcode and tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 06/26] target/arm: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 05/26] tcg/i386: implement goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 08/26] target/i386: introduce gen_jr helper to generate lookup_and_goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 09/26] target/i386: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 07/26] target/arm: optimize indirect branches, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 10/26] target/i386: optimize indirect branches, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 12/26] tcg/ppc: Implement goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 14/26] tcg/sparc: Implement goto_ptr,
Richard Henderson <=
- [Qemu-devel] [PULL 13/26] tcg/aarch64: Implement goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 11/26] tb-hash: improve tb_jmp_cache hash function in user mode, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 15/26] tcg/s390: Implement goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 17/26] tcg/arm: Implement goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 20/26] target/hppa: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 21/26] target/aarch64: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 16/26] tcg/arm: Clarify tcg_out_bx for arm4 host, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 19/26] target/s390: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 23/26] target/mips: optimize cross-page direct jumps in softmmu, Richard Henderson, 2017/06/05
- [Qemu-devel] [PULL 24/26] target/mips: optimize indirect branches, Richard Henderson, 2017/06/05