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[PULL,13/13] tcg/i386: Fix %r12 guest_base initialization

Message ID 20200407155118.20139-14-alex.bennee@linaro.org
State New
Headers show
Series [PULL,01/13] .github: Enable repo-lockdown bot to refuse GitHub pull requests | expand

Commit Message

Alex Bennée April 7, 2020, 3:51 p.m. UTC
From: Richard Henderson <richard.henderson@linaro.org>

When %gs cannot be used, we use register offset addressing.
This path is almost never used, so it was clearly not tested.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200406174803.8192-1-richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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Patch

diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index 7f61eeedd09..ec083bddcfb 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -3737,7 +3737,7 @@  static void tcg_target_qemu_prologue(TCGContext *s)
         } else {
             /* Choose R12 because, as a base, it requires a SIB byte. */
             x86_guest_base_index = TCG_REG_R12;
-            tcg_out_mov(s, TCG_TYPE_PTR, x86_guest_base_index, guest_base);
+            tcg_out_movi(s, TCG_TYPE_PTR, x86_guest_base_index, guest_base);
             tcg_regset_set_reg(s->reserved_regs, x86_guest_base_index);
         }
     }