{"id":811257,"url":"http://patchwork.ozlabs.org/api/1.2/patches/811257/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170907224051.21518-24-richard.henderson@linaro.org/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.2/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170907224051.21518-24-richard.henderson@linaro.org>","list_archive_url":null,"date":"2017-09-07T22:40:51","name":"[PULL,23/23] tcg/ppc: Use constant pool for movi","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"bc937ee0bdbd4e3637a47713ddaa4e4a30173a7a","submitter":{"id":72104,"url":"http://patchwork.ozlabs.org/api/1.2/people/72104/?format=json","name":"Richard Henderson","email":"richard.henderson@linaro.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170907224051.21518-24-richard.henderson@linaro.org/mbox/","series":[{"id":2073,"url":"http://patchwork.ozlabs.org/api/1.2/series/2073/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=2073","date":"2017-09-07T22:40:28","name":"[PULL,01/23] tcg: Move USE_DIRECT_JUMP discriminator to tcg/cpu/tcg-target.h","version":1,"mbox":"http://patchwork.ozlabs.org/series/2073/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/811257/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/811257/checks/","tags":{},"related":[],"headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) 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-0700","Message-Id":"<20170907224051.21518-24-richard.henderson@linaro.org>","X-Mailer":"git-send-email 2.13.5","In-Reply-To":"<20170907224051.21518-1-richard.henderson@linaro.org>","References":"<20170907224051.21518-1-richard.henderson@linaro.org>","X-detected-operating-system":"by eggs.gnu.org: Genre and OS details not\n\trecognized.","X-Received-From":"2607:f8b0:400e:c00::22e","Subject":"[Qemu-devel] [PULL 23/23] tcg/ppc: Use constant pool for movi","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"<qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<http://lists.nongnu.org/archive/html/qemu-devel/>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Cc":"peter.maydell@linaro.org, Richard Henderson <rth@twiddle.net>","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"},"content":"From: Richard Henderson <rth@twiddle.net>\n\nSigned-off-by: Richard Henderson <rth@twiddle.net>\n---\n tcg/ppc/tcg-target.h     |  1 +\n tcg/ppc/tcg-target.inc.c | 34 ++++++++++++++++++++++++++++++----\n 2 files changed, 31 insertions(+), 4 deletions(-)","diff":"diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h\nindex 3772cc6648..be52ad1d2e 100644\n--- a/tcg/ppc/tcg-target.h\n+++ b/tcg/ppc/tcg-target.h\n@@ -132,5 +132,6 @@ void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t);\n #ifdef CONFIG_SOFTMMU\n #define TCG_TARGET_NEED_LDST_LABELS\n #endif\n+#define TCG_TARGET_NEED_POOL_LABELS\n \n #endif\ndiff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c\nindex df709c4a96..21d764c102 100644\n--- a/tcg/ppc/tcg-target.inc.c\n+++ b/tcg/ppc/tcg-target.inc.c\n@@ -22,6 +22,9 @@\n  * THE SOFTWARE.\n  */\n \n+#include \"elf.h\"\n+#include \"tcg-pool.inc.c\"\n+\n #if defined _CALL_DARWIN || defined __APPLE__\n #define TCG_TARGET_CALL_DARWIN\n #endif\n@@ -58,8 +61,6 @@\n \n static tcg_insn_unit *tb_ret_addr;\n \n-#include \"elf.h\"\n-\n bool have_isa_2_06;\n bool have_isa_3_00;\n \n@@ -224,9 +225,12 @@ static inline void tcg_out_bc_noaddr(TCGContext *s, int insn)\n static void patch_reloc(tcg_insn_unit *code_ptr, int type,\n                         intptr_t value, intptr_t addend)\n {\n-    tcg_insn_unit *target = (tcg_insn_unit *)value;\n+    tcg_insn_unit *target;\n+    tcg_insn_unit old;\n+\n+    value += addend;\n+    target = (tcg_insn_unit *)value;\n \n-    tcg_debug_assert(addend == 0);\n     switch (type) {\n     case R_PPC_REL14:\n         reloc_pc14(code_ptr, target);\n@@ -234,6 +238,12 @@ static void patch_reloc(tcg_insn_unit *code_ptr, int type,\n     case R_PPC_REL24:\n         reloc_pc24(code_ptr, target);\n         break;\n+    case R_PPC_ADDR16:\n+        assert(value == (int16_t)value);\n+        old = *code_ptr;\n+        old = deposit32(old, 0, 16, value);\n+        *code_ptr = old;\n+        break;\n     default:\n         tcg_abort();\n     }\n@@ -676,6 +686,14 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret,\n         return;\n     }\n \n+    /* Use the constant pool, if possible.  */\n+    if (!in_prologue && USE_REG_TB) {\n+        new_pool_label(s, arg, R_PPC_ADDR16, s->code_ptr,\n+                       -(intptr_t)s->code_gen_ptr);\n+        tcg_out32(s, LD | TAI(ret, TCG_REG_TB, 0));\n+        return;\n+    }\n+\n     tmp = arg >> 31 >> 1;\n     tcg_out_movi(s, TCG_TYPE_I32, ret, tmp);\n     if (tmp) {\n@@ -1858,6 +1876,14 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)\n #endif\n }\n \n+static void tcg_out_nop_fill(tcg_insn_unit *p, int count)\n+{\n+    int i;\n+    for (i = 0; i < count; ++i) {\n+        p[i] = NOP;\n+    }\n+}\n+\n /* Parameters for function call generation, used in tcg.c.  */\n #define TCG_TARGET_STACK_ALIGN       16\n #define TCG_TARGET_EXTEND_ARGS       1\n","prefixes":["PULL","23/23"]}