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[PULL,v3,22/38] tcg/riscv: Do not reserve TCG_GUEST_BASE_REG for guest_base zero

Message ID 20231023181329.171490-23-richard.henderson@linaro.org
State Accepted
Commit cf0ed30eb10c7341fd1f253446e3bbb6e0114c30
Headers show
Series [PULL,v3,01/38] tcg/ppc: Untabify tcg-target.c.inc | expand

Commit Message

Richard Henderson Oct. 23, 2023, 6:13 p.m. UTC 
Fixes: 92c041c59b ("tcg/riscv: Add the prologue generation and register the JIT")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/riscv/tcg-target.c.inc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index d6dbcaf3cb..dc71f829d1 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -2076,8 +2076,10 @@  static void tcg_target_qemu_prologue(TCGContext *s)
     }
 
 #if !defined(CONFIG_SOFTMMU)
-    tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
-    tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
+    if (guest_base) {
+        tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
+        tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
+    }
 #endif
 
     /* Call generated code */