From: WANG Xuerui <git@xen0n.name>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"XiaoJuan Yang" <yangxiaojuan@loongson.cn>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Laurent Vivier" <laurent@vivier.eu>,
"WANG Xuerui" <git@xen0n.name>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Song Gao" <gaosong@loongson.cn>
Subject: [PATCH v11 19/31] tcg/loongarch64: Implement br/brcond ops
Date: Tue, 21 Dec 2021 13:40:53 +0800 [thread overview]
Message-ID: <20211221054105.178795-20-git@xen0n.name> (raw)
In-Reply-To: <20211221054105.178795-1-git@xen0n.name>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 53 ++++++++++++++++++++++++++++
2 files changed, 54 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index fb56f3a295..367689c2e2 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -15,6 +15,7 @@
* tcg-target-con-str.h; the constraint combination is inclusive or.
*/
C_O0_I1(r)
+C_O0_I2(rZ, rZ)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 0ae193fba5..aedfc0df84 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -434,6 +434,44 @@ static void tcg_out_clzctz(TCGContext *s, LoongArchInsn opc,
tcg_out_opc_or(s, a0, TCG_REG_TMP0, a0);
}
+/*
+ * Branch helpers
+ */
+
+static const struct {
+ LoongArchInsn op;
+ bool swap;
+} tcg_brcond_to_loongarch[] = {
+ [TCG_COND_EQ] = { OPC_BEQ, false },
+ [TCG_COND_NE] = { OPC_BNE, false },
+ [TCG_COND_LT] = { OPC_BGT, true },
+ [TCG_COND_GE] = { OPC_BLE, true },
+ [TCG_COND_LE] = { OPC_BLE, false },
+ [TCG_COND_GT] = { OPC_BGT, false },
+ [TCG_COND_LTU] = { OPC_BGTU, true },
+ [TCG_COND_GEU] = { OPC_BLEU, true },
+ [TCG_COND_LEU] = { OPC_BLEU, false },
+ [TCG_COND_GTU] = { OPC_BGTU, false }
+};
+
+static void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGReg arg1,
+ TCGReg arg2, TCGLabel *l)
+{
+ LoongArchInsn op = tcg_brcond_to_loongarch[cond].op;
+
+ tcg_debug_assert(op != 0);
+
+ if (tcg_brcond_to_loongarch[cond].swap) {
+ TCGReg t = arg1;
+ arg1 = arg2;
+ arg2 = t;
+ }
+
+ /* all conditional branch insns belong to DJSk16-format */
+ tcg_out_reloc(s, s->code_ptr, R_LOONGARCH_BR_SK16, l, 0);
+ tcg_out32(s, encode_djsk16_insn(op, arg1, arg2, 0));
+}
+
/*
* Entry-points
*/
@@ -456,6 +494,17 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_jirl(s, TCG_REG_ZERO, a0, 0);
break;
+ case INDEX_op_br:
+ tcg_out_reloc(s, s->code_ptr, R_LOONGARCH_BR_SD10K16, arg_label(a0),
+ 0);
+ tcg_out_opc_b(s, 0);
+ break;
+
+ case INDEX_op_brcond_i32:
+ case INDEX_op_brcond_i64:
+ tcg_out_brcond(s, a2, a0, a1, arg_label(args[3]));
+ break;
+
case INDEX_op_ext8s_i32:
case INDEX_op_ext8s_i64:
tcg_out_ext8s(s, a0, a1);
@@ -779,6 +828,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_goto_ptr:
return C_O0_I1(r);
+ case INDEX_op_brcond_i32:
+ case INDEX_op_brcond_i64:
+ return C_O0_I2(rZ, rZ);
+
case INDEX_op_ext8s_i32:
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
--
2.34.0
next prev parent reply other threads:[~2021-12-21 6:07 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-21 5:40 [PATCH v11 00/31] LoongArch64 port of QEMU TCG WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 01/31] elf: Add machine type value for LoongArch WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 02/31] MAINTAINERS: Add tcg/loongarch64 entry with myself as maintainer WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 03/31] tcg/loongarch64: Add the tcg-target.h file WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 04/31] tcg/loongarch64: Add generated instruction opcodes and encoding helpers WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 05/31] tcg/loongarch64: Add register names, allocation order and input/output sets WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 06/31] tcg/loongarch64: Define the operand constraints WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 07/31] tcg/loongarch64: Implement necessary relocation operations WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 08/31] tcg/loongarch64: Implement the memory barrier op WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 09/31] tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 10/31] tcg/loongarch64: Implement goto_ptr WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 11/31] tcg/loongarch64: Implement sign-/zero-extension ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 12/31] tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 13/31] tcg/loongarch64: Implement deposit/extract ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 14/31] tcg/loongarch64: Implement bswap{16,32,64} ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 15/31] tcg/loongarch64: Implement clz/ctz ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 16/31] tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 17/31] tcg/loongarch64: Implement add/sub ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 18/31] tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops WANG Xuerui
2021-12-21 5:40 ` WANG Xuerui [this message]
2021-12-21 5:40 ` [PATCH v11 20/31] tcg/loongarch64: Implement setcond ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 21/31] tcg/loongarch64: Implement tcg_out_call WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 22/31] tcg/loongarch64: Implement simple load/store ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 23/31] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 24/31] tcg/loongarch64: Implement tcg_target_qemu_prologue WANG Xuerui
2021-12-21 5:40 ` [PATCH v11 25/31] tcg/loongarch64: Implement exit_tb/goto_tb WANG Xuerui
2021-12-21 5:41 ` [PATCH v11 26/31] tcg/loongarch64: Implement tcg_target_init WANG Xuerui
2021-12-21 5:41 ` [PATCH v11 27/31] tcg/loongarch64: Register the JIT WANG Xuerui
2021-12-21 5:41 ` [PATCH v11 28/31] common-user: Add safe syscall handling for loongarch64 hosts WANG Xuerui
2021-12-21 5:41 ` [PATCH v11 29/31] linux-user: Implement CPU-specific signal handler " WANG Xuerui
2021-12-30 3:11 ` gaosong
2021-12-30 3:50 ` WANG Xuerui
2022-01-04 12:48 ` Philippe Mathieu-Daudé
2021-12-21 5:41 ` [PATCH v11 30/31] configure, meson.build: Mark support " WANG Xuerui
2021-12-21 5:41 ` [PATCH v11 31/31] tests/docker: Add gentoo-loongarch64-cross image and run cross builds in GitLab WANG Xuerui
2021-12-21 8:44 ` [PATCH v11 00/31] LoongArch64 port of QEMU TCG Philippe Mathieu-Daudé
2021-12-21 9:36 ` gaosong
2021-12-21 12:00 ` Philippe Mathieu-Daudé
2021-12-23 2:00 ` gaosong
2021-12-21 16:49 ` Richard Henderson
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