From baa94c0d333b5eccd68450625e0c3960e85d1913 Mon Sep 17 00:00:00 2001
From: Richard Henderson <richard.henderson@linaro.org>
Date: Sun, 31 Jan 2021 23:26:14 -1000
Subject: [PATCH] tcg/tci: Reserve r13 for a temporary
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We're about to adjust the offset range on host memory ops,
and the format of branches. Both will require a temporary.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/tci/tcg-target.c.inc | 1 +
tcg/tci/tcg-target.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index fa3de99445..5269a788a3 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -820,6 +820,7 @@ static void tcg_target_init(TCGContext *s)
MAKE_64BIT_MASK(TCG_REG_R0, 64 / TCG_TARGET_REG_BITS);
s->reserved_regs = 0;
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK);
/* The call arguments come first, followed by the temp storage. */
diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h
index f2e5cba539..80cafb7d18 100644
--- a/tcg/tci/tcg-target.h
+++ b/tcg/tci/tcg-target.h
@@ -156,6 +156,7 @@ typedef enum {
TCG_REG_R14,
TCG_REG_R15,
+ TCG_REG_TMP = TCG_REG_R13,
TCG_AREG0 = TCG_REG_R14,
TCG_REG_CALL_STACK = TCG_REG_R15,
} TCGReg;
--
2.30.2