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[PULL 12/33] tcg/tci: Reserve r13 for a temporary
From: |
Richard Henderson |
Subject: |
[PULL 12/33] tcg/tci: Reserve r13 for a temporary |
Date: |
Sat, 19 Jun 2021 11:14:31 -0700 |
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.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 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;
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. */
--
2.25.1
- [PULL 04/33] plugins: Drop tcg_flags from struct qemu_plugin_dyn_cb, (continued)
- [PULL 04/33] plugins: Drop tcg_flags from struct qemu_plugin_dyn_cb, Richard Henderson, 2021/06/19
- [PULL 06/33] tcg: Store the TCGHelperInfo in the TCGOp for call, Richard Henderson, 2021/06/19
- [PULL 05/33] accel/tcg: Add tcg call flags to plugins helpers, Richard Henderson, 2021/06/19
- [PULL 07/33] tcg: Add tcg_call_func, Richard Henderson, 2021/06/19
- [PULL 08/33] tcg: Build ffi data structures for helpers, Richard Henderson, 2021/06/19
- [PULL 09/33] tcg/tci: Improve tcg_target_call_clobber_regs, Richard Henderson, 2021/06/19
- [PULL 02/33] tcg: Add tcg_call_flags, Richard Henderson, 2021/06/19
- [PULL 10/33] tcg/tci: Move call-return regs to end of tcg_target_reg_alloc_order, Richard Henderson, 2021/06/19
- [PULL 11/33] tcg/tci: Use ffi for calls, Richard Henderson, 2021/06/19
- [PULL 18/33] tcg/tci: Implement andc, orc, eqv, nand, nor, Richard Henderson, 2021/06/19
- [PULL 12/33] tcg/tci: Reserve r13 for a temporary,
Richard Henderson <=
- [PULL 30/33] tcg: Allocate sufficient storage in temp_allocate_frame, Richard Henderson, 2021/06/19
- [PULL 26/33] tcg/tci: Use {set,clear}_helper_retaddr, Richard Henderson, 2021/06/19
- [PULL 25/33] tcg/tci: Remove the qemu_ld/st_type macros, Richard Henderson, 2021/06/19
- [PULL 31/33] tcg: Restart when exhausting the stack frame, Richard Henderson, 2021/06/19
- [PULL 14/33] tcg/tci: Remove tci_write_reg, Richard Henderson, 2021/06/19
- [PULL 17/33] tcg/tci: Implement movcond, Richard Henderson, 2021/06/19
- [PULL 19/33] tcg/tci: Implement extract, sextract, Richard Henderson, 2021/06/19
- [PULL 22/33] tcg/tci: Implement add2, sub2, Richard Henderson, 2021/06/19
- [PULL 13/33] tcg/tci: Emit setcond before brcond, Richard Henderson, 2021/06/19
- [PULL 20/33] tcg/tci: Implement clz, ctz, ctpop, Richard Henderson, 2021/06/19