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[PATCH v6 12/26] tcg/tci: Reserve r13 for a temporary
From: |
Richard Henderson |
Subject: |
[PATCH v6 12/26] tcg/tci: Reserve r13 for a temporary |
Date: |
Sun, 2 May 2021 16:57:13 -0700 |
We're about to adjust the offset range on host memory ops,
and the format of branches. Both will require a temporary.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/tci/tcg-target.h | 1 +
tcg/tci/tcg-target.c.inc | 1 +
2 files changed, 2 insertions(+)
diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h
index 4df10e2e83..1558a6e44e 100644
--- a/tcg/tci/tcg-target.h
+++ b/tcg/tci/tcg-target.h
@@ -155,6 +155,7 @@ 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;
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 9ab7916300..d80fec3488 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -822,6 +822,7 @@ 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. */
--
2.25.1
- Re: [PATCH v6 07/26] tcg: Add tcg_call_func, (continued)
- [PATCH v6 08/26] tcg: Build ffi data structures for helpers, Richard Henderson, 2021/05/02
- [PATCH v6 10/26] tcg/tci: Move call-return regs to end of tcg_target_reg_alloc_order, Richard Henderson, 2021/05/02
- [PATCH v6 13/26] tcg/tci: Emit setcond before brcond, Richard Henderson, 2021/05/02
- [PATCH v6 11/26] tcg/tci: Use ffi for calls, Richard Henderson, 2021/05/02
- [PATCH v6 14/26] tcg/tci: Remove tci_write_reg, Richard Henderson, 2021/05/02
- [PATCH v6 09/26] tcg/tci: Improve tcg_target_call_clobber_regs, Richard Henderson, 2021/05/02
- [PATCH v6 12/26] tcg/tci: Reserve r13 for a temporary,
Richard Henderson <=
- [PATCH v6 18/26] tcg/tci: Implement andc, orc, eqv, nand, nor, Richard Henderson, 2021/05/02
- [PATCH v6 17/26] tcg/tci: Implement movcond, Richard Henderson, 2021/05/02
- [PATCH v6 19/26] tcg/tci: Implement extract, sextract, Richard Henderson, 2021/05/02
- [PATCH v6 15/26] tcg/tci: Change encoding to uint32_t units, Richard Henderson, 2021/05/02
- [PATCH v6 22/26] tcg/tci: Implement add2, sub2, Richard Henderson, 2021/05/02
- [PATCH v6 16/26] tcg/tci: Implement goto_ptr, Richard Henderson, 2021/05/02
- [PATCH v6 21/26] tcg/tci: Implement mulu2, muls2, Richard Henderson, 2021/05/02