From: Philippe Mathieu-Daudé <philmd@linaro.org>
Date: Thu, 10 Oct 2024 19:46:26 +0000 (-0300)
Subject: target/mips: Have gen_addiupc() expand $pc during translation
X-Git-Tag: v9.2.0-rc0~46^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=de0029664f7f57df2c7c9209f7fa31b3929c8a1e;p=thirdparty%2Fqemu.git

target/mips: Have gen_addiupc() expand $pc during translation

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241010215015.44326-12-philmd@linaro.org>
---

diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index c0b97539a29..0ccf32d185e 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -11428,20 +11428,18 @@ static void gen_compute_compact_branch(DisasContext *ctx, uint32_t opc,
 void gen_addiupc(DisasContext *ctx, int rx, int imm,
                  int is_64_bit, int extended)
 {
-    TCGv t0;
+    target_ulong npc;
 
     if (extended && (ctx->hflags & MIPS_HFLAG_BMASK)) {
         gen_reserved_instruction(ctx);
         return;
     }
 
-    t0 = tcg_temp_new();
-
-    tcg_gen_movi_tl(t0, pc_relative_pc(ctx));
-    tcg_gen_addi_tl(cpu_gpr[rx], t0, imm);
+    npc = pc_relative_pc(ctx) + imm;
     if (!is_64_bit) {
-        tcg_gen_ext32s_tl(cpu_gpr[rx], cpu_gpr[rx]);
+        npc = (int32_t)npc;
     }
+    tcg_gen_movi_tl(cpu_gpr[rx], npc);
 }
 
 static void gen_cache_operation(DisasContext *ctx, uint32_t op, int base,