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([63.239.63.212]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72ad3393d5fsm20604456b3a.154.2025.01.02.10.07.06 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Jan 2025 10:07:07 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 15/73] tcg: Remove TCG_TARGET_NEED_LDST_LABELS and TCG_TARGET_NEED_POOL_LABELS Date: Thu, 2 Jan 2025 10:05:55 -0800 Message-ID: <20250102180654.1420056-16-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250102180654.1420056-1-richard.henderson@linaro.org> References: <20250102180654.1420056-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::634; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x634.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Make these features unconditional, as they're used by most tcg backends anyway. Merge tcg-ldst.c.inc and tcg-pool.c.inc into tcg.c and mark some of the functions unused, so that when the features are not used we won't get Werrors. Signed-off-by: Richard Henderson --- include/tcg/tcg.h | 4 - tcg/aarch64/tcg-target.h | 2 - tcg/arm/tcg-target.h | 2 - tcg/i386/tcg-target.h | 2 - tcg/loongarch64/tcg-target.h | 2 - tcg/mips/tcg-target.h | 2 - tcg/ppc/tcg-target.h | 2 - tcg/riscv/tcg-target.h | 3 - tcg/s390x/tcg-target.h | 2 - tcg/sparc64/tcg-target.h | 2 - tcg/tcg.c | 211 +++++++++++++++++++++++++++++-- tcg/aarch64/tcg-target.c.inc | 2 - tcg/arm/tcg-target.c.inc | 2 - tcg/i386/tcg-target.c.inc | 3 - tcg/loongarch64/tcg-target.c.inc | 9 +- tcg/mips/tcg-target.c.inc | 3 - tcg/ppc/tcg-target.c.inc | 2 - tcg/riscv/tcg-target.c.inc | 3 - tcg/s390x/tcg-target.c.inc | 2 - tcg/sparc64/tcg-target.c.inc | 3 - tcg/tcg-ldst.c.inc | 65 ---------- tcg/tcg-pool.c.inc | 162 ------------------------ tcg/tci/tcg-target.c.inc | 12 +- 23 files changed, 216 insertions(+), 286 deletions(-) delete mode 100644 tcg/tcg-ldst.c.inc delete mode 100644 tcg/tcg-pool.c.inc diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index a27b8d77e9..01605f30c7 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -494,12 +494,8 @@ struct TCGContext { CPUState *cpu; /* *_trans */ /* These structures are private to tcg-target.c.inc. */ -#ifdef TCG_TARGET_NEED_LDST_LABELS QSIMPLEQ_HEAD(, TCGLabelQemuLdst) ldst_labels; -#endif -#ifdef TCG_TARGET_NEED_POOL_LABELS struct TCGLabelPoolData *pool_labels; -#endif TCGLabel *exitreq_label; diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h index cb24c0d276..d8ca52d32d 100644 --- a/tcg/aarch64/tcg-target.h +++ b/tcg/aarch64/tcg-target.h @@ -157,7 +157,5 @@ typedef enum { #define TCG_TARGET_HAS_tst_vec 1 #define TCG_TARGET_DEFAULT_MO (0) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif /* AARCH64_TCG_TARGET_H */ diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h index 8abf15aef4..7f6e24f861 100644 --- a/tcg/arm/tcg-target.h +++ b/tcg/arm/tcg-target.h @@ -145,7 +145,5 @@ extern bool use_neon_instructions; #define TCG_TARGET_HAS_tst_vec 1 #define TCG_TARGET_DEFAULT_MO (0) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h index c81d509f1c..9961d8e757 100644 --- a/tcg/i386/tcg-target.h +++ b/tcg/i386/tcg-target.h @@ -227,7 +227,5 @@ typedef enum { #include "tcg/tcg-mo.h" #define TCG_TARGET_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h index 7811530c8a..3bc9aafaf2 100644 --- a/tcg/loongarch64/tcg-target.h +++ b/tcg/loongarch64/tcg-target.h @@ -189,6 +189,4 @@ typedef enum { #define TCG_TARGET_DEFAULT_MO (0) -#define TCG_TARGET_NEED_LDST_LABELS - #endif /* LOONGARCH_TCG_TARGET_H */ diff --git a/tcg/mips/tcg-target.h b/tcg/mips/tcg-target.h index d9b9f6a965..db60eb7c1b 100644 --- a/tcg/mips/tcg-target.h +++ b/tcg/mips/tcg-target.h @@ -183,7 +183,5 @@ extern bool use_mips32r2_instructions; #define TCG_TARGET_HAS_tst 0 #define TCG_TARGET_DEFAULT_MO 0 -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h index 0b2171d38c..8291e0127d 100644 --- a/tcg/ppc/tcg-target.h +++ b/tcg/ppc/tcg-target.h @@ -176,7 +176,5 @@ typedef enum { #define TCG_TARGET_HAS_tst_vec 0 #define TCG_TARGET_DEFAULT_MO (0) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/riscv/tcg-target.h b/tcg/riscv/tcg-target.h index d23306738a..bfaa99ccdd 100644 --- a/tcg/riscv/tcg-target.h +++ b/tcg/riscv/tcg-target.h @@ -161,7 +161,4 @@ typedef enum { #define TCG_TARGET_DEFAULT_MO (0) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS - #endif diff --git a/tcg/s390x/tcg-target.h b/tcg/s390x/tcg-target.h index 7e0bf687b9..223d3f6ca1 100644 --- a/tcg/s390x/tcg-target.h +++ b/tcg/s390x/tcg-target.h @@ -166,7 +166,5 @@ extern uint64_t s390_facilities[3]; #define TCG_TARGET_HAS_tst_vec 0 #define TCG_TARGET_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/sparc64/tcg-target.h b/tcg/sparc64/tcg-target.h index 0705308951..b560d43ed5 100644 --- a/tcg/sparc64/tcg-target.h +++ b/tcg/sparc64/tcg-target.h @@ -143,7 +143,5 @@ extern bool use_vis3_instructions; #define TCG_AREG0 TCG_REG_I0 #define TCG_TARGET_DEFAULT_MO (0) -#define TCG_TARGET_NEED_LDST_LABELS -#define TCG_TARGET_NEED_POOL_LABELS #endif diff --git a/tcg/tcg.c b/tcg/tcg.c index 657534c6a9..38c3c03591 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -75,6 +75,11 @@ static void tcg_target_init(TCGContext *s); static void tcg_target_qemu_prologue(TCGContext *s); static bool patch_reloc(tcg_insn_unit *code_ptr, int type, intptr_t value, intptr_t addend); +static void tcg_out_nop_fill(tcg_insn_unit *p, int count); + +typedef struct TCGLabelQemuLdst TCGLabelQemuLdst; +static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l); +static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l); /* The CIE and FDE header definitions will be common to all hosts. */ typedef struct { @@ -99,7 +104,7 @@ typedef struct QEMU_PACKED { DebugFrameFDEHeader fde; } DebugFrameHeader; -typedef struct TCGLabelQemuLdst { +struct TCGLabelQemuLdst { bool is_ld; /* qemu_ld: true, qemu_st: false */ MemOpIdx oi; TCGType type; /* result type of a load */ @@ -110,7 +115,7 @@ typedef struct TCGLabelQemuLdst { const tcg_insn_unit *raddr; /* addr of the next IR of qemu_ld/st IR */ tcg_insn_unit *label_ptr[2]; /* label pointers to be updated */ QSIMPLEQ_ENTRY(TCGLabelQemuLdst) next; -} TCGLabelQemuLdst; +}; static void tcg_register_jit_int(const void *buf, size_t size, const void *debug_frame, @@ -184,9 +189,6 @@ static void tcg_out_call(TCGContext *s, const tcg_insn_unit *target, static TCGReg tcg_target_call_oarg_reg(TCGCallReturnKind kind, int slot); static bool tcg_target_const_match(int64_t val, int ct, TCGType type, TCGCond cond, int vece); -#ifdef TCG_TARGET_NEED_LDST_LABELS -static int tcg_out_ldst_finalize(TCGContext *s); -#endif #ifndef CONFIG_USER_ONLY #define guest_base ({ qemu_build_not_reached(); (uintptr_t)0; }) @@ -643,6 +645,197 @@ static void tcg_out_movext3(TCGContext *s, const TCGMovExtend *i1, } } +/* + * Allocate a new TCGLabelQemuLdst entry. + */ + +__attribute__((unused)) +static TCGLabelQemuLdst *new_ldst_label(TCGContext *s) +{ + TCGLabelQemuLdst *l = tcg_malloc(sizeof(*l)); + + memset(l, 0, sizeof(*l)); + QSIMPLEQ_INSERT_TAIL(&s->ldst_labels, l, next); + + return l; +} + +/* + * Allocate new constant pool entries. + */ + +typedef struct TCGLabelPoolData { + struct TCGLabelPoolData *next; + tcg_insn_unit *label; + intptr_t addend; + int rtype; + unsigned nlong; + tcg_target_ulong data[]; +} TCGLabelPoolData; + +static TCGLabelPoolData *new_pool_alloc(TCGContext *s, int nlong, int rtype, + tcg_insn_unit *label, intptr_t addend) +{ + TCGLabelPoolData *n = tcg_malloc(sizeof(TCGLabelPoolData) + + sizeof(tcg_target_ulong) * nlong); + + n->label = label; + n->addend = addend; + n->rtype = rtype; + n->nlong = nlong; + return n; +} + +static void new_pool_insert(TCGContext *s, TCGLabelPoolData *n) +{ + TCGLabelPoolData *i, **pp; + int nlong = n->nlong; + + /* Insertion sort on the pool. */ + for (pp = &s->pool_labels; (i = *pp) != NULL; pp = &i->next) { + if (nlong > i->nlong) { + break; + } + if (nlong < i->nlong) { + continue; + } + if (memcmp(n->data, i->data, sizeof(tcg_target_ulong) * nlong) >= 0) { + break; + } + } + n->next = *pp; + *pp = n; +} + +/* The "usual" for generic integer code. */ +__attribute__((unused)) +static void new_pool_label(TCGContext *s, tcg_target_ulong d, int rtype, + tcg_insn_unit *label, intptr_t addend) +{ + TCGLabelPoolData *n = new_pool_alloc(s, 1, rtype, label, addend); + n->data[0] = d; + new_pool_insert(s, n); +} + +/* For v64 or v128, depending on the host. */ +__attribute__((unused)) +static void new_pool_l2(TCGContext *s, int rtype, tcg_insn_unit *label, + intptr_t addend, tcg_target_ulong d0, + tcg_target_ulong d1) +{ + TCGLabelPoolData *n = new_pool_alloc(s, 2, rtype, label, addend); + n->data[0] = d0; + n->data[1] = d1; + new_pool_insert(s, n); +} + +/* For v128 or v256, depending on the host. */ +__attribute__((unused)) +static void new_pool_l4(TCGContext *s, int rtype, tcg_insn_unit *label, + intptr_t addend, tcg_target_ulong d0, + tcg_target_ulong d1, tcg_target_ulong d2, + tcg_target_ulong d3) +{ + TCGLabelPoolData *n = new_pool_alloc(s, 4, rtype, label, addend); + n->data[0] = d0; + n->data[1] = d1; + n->data[2] = d2; + n->data[3] = d3; + new_pool_insert(s, n); +} + +/* For v256, for 32-bit host. */ +__attribute__((unused)) +static void new_pool_l8(TCGContext *s, int rtype, tcg_insn_unit *label, + intptr_t addend, tcg_target_ulong d0, + tcg_target_ulong d1, tcg_target_ulong d2, + tcg_target_ulong d3, tcg_target_ulong d4, + tcg_target_ulong d5, tcg_target_ulong d6, + tcg_target_ulong d7) +{ + TCGLabelPoolData *n = new_pool_alloc(s, 8, rtype, label, addend); + n->data[0] = d0; + n->data[1] = d1; + n->data[2] = d2; + n->data[3] = d3; + n->data[4] = d4; + n->data[5] = d5; + n->data[6] = d6; + n->data[7] = d7; + new_pool_insert(s, n); +} + +/* + * Generate TB finalization at the end of block + */ + +static int tcg_out_ldst_finalize(TCGContext *s) +{ + TCGLabelQemuLdst *lb; + + /* qemu_ld/st slow paths */ + QSIMPLEQ_FOREACH(lb, &s->ldst_labels, next) { + if (lb->is_ld + ? !tcg_out_qemu_ld_slow_path(s, lb) + : !tcg_out_qemu_st_slow_path(s, lb)) { + return -2; + } + + /* + * Test for (pending) buffer overflow. The assumption is that any + * one operation beginning below the high water mark cannot overrun + * the buffer completely. Thus we can test for overflow after + * generating code without having to check during generation. + */ + if (unlikely((void *)s->code_ptr > s->code_gen_highwater)) { + return -1; + } + } + return 0; +} + +static int tcg_out_pool_finalize(TCGContext *s) +{ + TCGLabelPoolData *p = s->pool_labels; + TCGLabelPoolData *l = NULL; + void *a; + + if (p == NULL) { + return 0; + } + + /* + * ??? Round up to qemu_icache_linesize, but then do not round + * again when allocating the next TranslationBlock structure. + */ + a = (void *)ROUND_UP((uintptr_t)s->code_ptr, + sizeof(tcg_target_ulong) * p->nlong); + tcg_out_nop_fill(s->code_ptr, (tcg_insn_unit *)a - s->code_ptr); + s->data_gen_ptr = a; + + for (; p != NULL; p = p->next) { + size_t size = sizeof(tcg_target_ulong) * p->nlong; + uintptr_t value; + + if (!l || l->nlong != p->nlong || memcmp(l->data, p->data, size)) { + if (unlikely(a > s->code_gen_highwater)) { + return -1; + } + memcpy(a, p->data, size); + a += size; + l = p; + } + + value = (uintptr_t)tcg_splitwx_to_rx(a) - size; + if (!patch_reloc(p->label, p->rtype, value, p->addend)) { + return -2; + } + } + + s->code_ptr = a; + return 0; +} + #define C_PFX1(P, A) P##A #define C_PFX2(P, A, B) P##A##_##B #define C_PFX3(P, A, B, C) P##A##_##B##_##C @@ -6221,12 +6414,8 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb, uint64_t pc_start) s->code_ptr = s->code_buf; s->data_gen_ptr = NULL; -#ifdef TCG_TARGET_NEED_LDST_LABELS QSIMPLEQ_INIT(&s->ldst_labels); -#endif -#ifdef TCG_TARGET_NEED_POOL_LABELS s->pool_labels = NULL; -#endif start_words = s->insn_start_words; s->gen_insn_data = @@ -6306,18 +6495,14 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb, uint64_t pc_start) s->gen_insn_end_off[num_insns] = tcg_current_code_size(s); /* Generate TB finalization at the end of block */ -#ifdef TCG_TARGET_NEED_LDST_LABELS i = tcg_out_ldst_finalize(s); if (i < 0) { return i; } -#endif -#ifdef TCG_TARGET_NEED_POOL_LABELS i = tcg_out_pool_finalize(s); if (i < 0) { return i; } -#endif if (!tcg_resolve_relocs(s)) { return -2; } diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc index 0b018d3247..d77d305f30 100644 --- a/tcg/aarch64/tcg-target.c.inc +++ b/tcg/aarch64/tcg-target.c.inc @@ -10,8 +10,6 @@ * See the COPYING file in the top-level directory for details. */ -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" #include "qemu/bitops.h" /* Used for function call generation. */ diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc index f0674f23a5..90ac80077f 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -23,8 +23,6 @@ */ #include "elf.h" -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" int arm_arch = __ARM_ARCH; diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index aaf6107284..167228a781 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -22,9 +22,6 @@ * THE SOFTWARE. */ -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" - /* Used for function call generation. */ #define TCG_TARGET_STACK_ALIGN 16 #if defined(_WIN64) diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc index 8ae561bfc0..a273e7fce5 100644 --- a/tcg/loongarch64/tcg-target.c.inc +++ b/tcg/loongarch64/tcg-target.c.inc @@ -29,7 +29,6 @@ * THE SOFTWARE. */ -#include "../tcg-ldst.c.inc" #include /* used for function call generation */ @@ -2465,6 +2464,14 @@ static void tcg_out_tb_start(TCGContext *s) /* nothing to do */ } +static void tcg_out_nop_fill(tcg_insn_unit *p, int count) +{ + for (int i = 0; i < count; ++i) { + /* Canonical nop is andi r0,r0,0 */ + p[i] = OPC_ANDI; + } +} + static void tcg_target_init(TCGContext *s) { unsigned long hwcap = qemu_getauxval(AT_HWCAP); diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc index ed41cd7f1b..8857398893 100644 --- a/tcg/mips/tcg-target.c.inc +++ b/tcg/mips/tcg-target.c.inc @@ -24,9 +24,6 @@ * THE SOFTWARE. */ -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" - /* used for function call generation */ #define TCG_TARGET_STACK_ALIGN 16 #if _MIPS_SIM == _ABIO32 diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index 9a11c26fd3..94997b126f 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -23,8 +23,6 @@ */ #include "elf.h" -#include "../tcg-pool.c.inc" -#include "../tcg-ldst.c.inc" /* * Standardize on the _CALL_FOO symbols used by GCC: diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc index 34402fee2a..7d1bba100a 100644 --- a/tcg/riscv/tcg-target.c.inc +++ b/tcg/riscv/tcg-target.c.inc @@ -27,9 +27,6 @@ * THE SOFTWARE. */ -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" - /* Used for function call generation. */ #define TCG_REG_CALL_STACK TCG_REG_SP #define TCG_TARGET_STACK_ALIGN 16 diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index b1188525b2..fdf57c0b07 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -24,8 +24,6 @@ * THE SOFTWARE. */ -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" #include "elf.h" /* Used for function call generation. */ diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc index c9d105c35a..fe3e727399 100644 --- a/tcg/sparc64/tcg-target.c.inc +++ b/tcg/sparc64/tcg-target.c.inc @@ -27,9 +27,6 @@ #error "unsupported code generation mode" #endif -#include "../tcg-ldst.c.inc" -#include "../tcg-pool.c.inc" - /* Used for function call generation. */ #define TCG_REG_CALL_STACK TCG_REG_O6 #define TCG_TARGET_STACK_BIAS 2047 diff --git a/tcg/tcg-ldst.c.inc b/tcg/tcg-ldst.c.inc deleted file mode 100644 index ffada04af0..0000000000 --- a/tcg/tcg-ldst.c.inc +++ /dev/null @@ -1,65 +0,0 @@ -/* - * TCG Backend Data: load-store optimization only. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/* - * Generate TB finalization at the end of block - */ - -static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l); -static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l); - -static int tcg_out_ldst_finalize(TCGContext *s) -{ - TCGLabelQemuLdst *lb; - - /* qemu_ld/st slow paths */ - QSIMPLEQ_FOREACH(lb, &s->ldst_labels, next) { - if (lb->is_ld - ? !tcg_out_qemu_ld_slow_path(s, lb) - : !tcg_out_qemu_st_slow_path(s, lb)) { - return -2; - } - - /* Test for (pending) buffer overflow. The assumption is that any - one operation beginning below the high water mark cannot overrun - the buffer completely. Thus we can test for overflow after - generating code without having to check during generation. */ - if (unlikely((void *)s->code_ptr > s->code_gen_highwater)) { - return -1; - } - } - return 0; -} - -/* - * Allocate a new TCGLabelQemuLdst entry. - */ - -static inline TCGLabelQemuLdst *new_ldst_label(TCGContext *s) -{ - TCGLabelQemuLdst *l = tcg_malloc(sizeof(*l)); - - memset(l, 0, sizeof(*l)); - QSIMPLEQ_INSERT_TAIL(&s->ldst_labels, l, next); - - return l; -} diff --git a/tcg/tcg-pool.c.inc b/tcg/tcg-pool.c.inc deleted file mode 100644 index 90c2e63b7f..0000000000 --- a/tcg/tcg-pool.c.inc +++ /dev/null @@ -1,162 +0,0 @@ -/* - * TCG Backend Data: constant pool. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -typedef struct TCGLabelPoolData { - struct TCGLabelPoolData *next; - tcg_insn_unit *label; - intptr_t addend; - int rtype; - unsigned nlong; - tcg_target_ulong data[]; -} TCGLabelPoolData; - - -static TCGLabelPoolData *new_pool_alloc(TCGContext *s, int nlong, int rtype, - tcg_insn_unit *label, intptr_t addend) -{ - TCGLabelPoolData *n = tcg_malloc(sizeof(TCGLabelPoolData) - + sizeof(tcg_target_ulong) * nlong); - - n->label = label; - n->addend = addend; - n->rtype = rtype; - n->nlong = nlong; - return n; -} - -static void new_pool_insert(TCGContext *s, TCGLabelPoolData *n) -{ - TCGLabelPoolData *i, **pp; - int nlong = n->nlong; - - /* Insertion sort on the pool. */ - for (pp = &s->pool_labels; (i = *pp) != NULL; pp = &i->next) { - if (nlong > i->nlong) { - break; - } - if (nlong < i->nlong) { - continue; - } - if (memcmp(n->data, i->data, sizeof(tcg_target_ulong) * nlong) >= 0) { - break; - } - } - n->next = *pp; - *pp = n; -} - -/* The "usual" for generic integer code. */ -static inline void new_pool_label(TCGContext *s, tcg_target_ulong d, int rtype, - tcg_insn_unit *label, intptr_t addend) -{ - TCGLabelPoolData *n = new_pool_alloc(s, 1, rtype, label, addend); - n->data[0] = d; - new_pool_insert(s, n); -} - -/* For v64 or v128, depending on the host. */ -static inline void new_pool_l2(TCGContext *s, int rtype, tcg_insn_unit *label, - intptr_t addend, tcg_target_ulong d0, - tcg_target_ulong d1) -{ - TCGLabelPoolData *n = new_pool_alloc(s, 2, rtype, label, addend); - n->data[0] = d0; - n->data[1] = d1; - new_pool_insert(s, n); -} - -/* For v128 or v256, depending on the host. */ -static inline void new_pool_l4(TCGContext *s, int rtype, tcg_insn_unit *label, - intptr_t addend, tcg_target_ulong d0, - tcg_target_ulong d1, tcg_target_ulong d2, - tcg_target_ulong d3) -{ - TCGLabelPoolData *n = new_pool_alloc(s, 4, rtype, label, addend); - n->data[0] = d0; - n->data[1] = d1; - n->data[2] = d2; - n->data[3] = d3; - new_pool_insert(s, n); -} - -/* For v256, for 32-bit host. */ -static inline void new_pool_l8(TCGContext *s, int rtype, tcg_insn_unit *label, - intptr_t addend, tcg_target_ulong d0, - tcg_target_ulong d1, tcg_target_ulong d2, - tcg_target_ulong d3, tcg_target_ulong d4, - tcg_target_ulong d5, tcg_target_ulong d6, - tcg_target_ulong d7) -{ - TCGLabelPoolData *n = new_pool_alloc(s, 8, rtype, label, addend); - n->data[0] = d0; - n->data[1] = d1; - n->data[2] = d2; - n->data[3] = d3; - n->data[4] = d4; - n->data[5] = d5; - n->data[6] = d6; - n->data[7] = d7; - new_pool_insert(s, n); -} - -/* To be provided by cpu/tcg-target.c.inc. */ -static void tcg_out_nop_fill(tcg_insn_unit *p, int count); - -static int tcg_out_pool_finalize(TCGContext *s) -{ - TCGLabelPoolData *p = s->pool_labels; - TCGLabelPoolData *l = NULL; - void *a; - - if (p == NULL) { - return 0; - } - - /* ??? Round up to qemu_icache_linesize, but then do not round - again when allocating the next TranslationBlock structure. */ - a = (void *)ROUND_UP((uintptr_t)s->code_ptr, - sizeof(tcg_target_ulong) * p->nlong); - tcg_out_nop_fill(s->code_ptr, (tcg_insn_unit *)a - s->code_ptr); - s->data_gen_ptr = a; - - for (; p != NULL; p = p->next) { - size_t size = sizeof(tcg_target_ulong) * p->nlong; - uintptr_t value; - - if (!l || l->nlong != p->nlong || memcmp(l->data, p->data, size)) { - if (unlikely(a > s->code_gen_highwater)) { - return -1; - } - memcpy(a, p->data, size); - a += size; - l = p; - } - - value = (uintptr_t)tcg_splitwx_to_rx(a) - size; - if (!patch_reloc(p->label, p->rtype, value, p->addend)) { - return -2; - } - } - - s->code_ptr = a; - return 0; -} diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc index e6c97e8153..5f88ca0537 100644 --- a/tcg/tci/tcg-target.c.inc +++ b/tcg/tci/tcg-target.c.inc @@ -22,8 +22,6 @@ * THE SOFTWARE. */ -#include "../tcg-pool.c.inc" - /* Used for function call generation. */ #define TCG_TARGET_CALL_STACK_OFFSET 0 #define TCG_TARGET_STACK_ALIGN 8 @@ -979,3 +977,13 @@ bool tcg_target_has_memory_bswap(MemOp memop) { return true; } + +static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l) +{ + g_assert_not_reached(); +} + +static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l) +{ + g_assert_not_reached(); +}