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authorRichard Henderson <richard.henderson@linaro.org>2021-01-28 14:55:57 -1000
committerRichard Henderson <richard.henderson@linaro.org>2021-02-05 10:24:14 -1000
commit552672bae63dd2c470fc533f276b746bae90b813 (patch)
treec20d9b1658b033f2689686c3ffe68d32ad7e0389 /tcg
parent187f44d9da0ca8ac08451f03f62b259080596570 (diff)
tcg/tci: Fix TCG_REG_R4 misusage
This was removed from tcg_target_reg_alloc_order and tcg_target_call_iarg_regs on the assumption that it was the stack. This was incorrectly copied from i386. For tci, the stack is R15. By adding R4 back to tcg_target_call_iarg_regs, adjust the other entries so that 6 (or 12) entries are still present in the array, and adjust the numbers in the interpreter. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
-rw-r--r--tcg/tci.c8
-rw-r--r--tcg/tci/tcg-target.c.inc7
2 files changed, 5 insertions, 10 deletions
diff --git a/tcg/tci.c b/tcg/tci.c
index e0d815e4b2..935eb87330 100644
--- a/tcg/tci.c
+++ b/tcg/tci.c
@@ -511,14 +511,14 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
tci_read_reg(regs, TCG_REG_R1),
tci_read_reg(regs, TCG_REG_R2),
tci_read_reg(regs, TCG_REG_R3),
+ tci_read_reg(regs, TCG_REG_R4),
tci_read_reg(regs, TCG_REG_R5),
tci_read_reg(regs, TCG_REG_R6),
tci_read_reg(regs, TCG_REG_R7),
tci_read_reg(regs, TCG_REG_R8),
tci_read_reg(regs, TCG_REG_R9),
tci_read_reg(regs, TCG_REG_R10),
- tci_read_reg(regs, TCG_REG_R11),
- tci_read_reg(regs, TCG_REG_R12));
+ tci_read_reg(regs, TCG_REG_R11));
tci_write_reg(regs, TCG_REG_R0, tmp64);
tci_write_reg(regs, TCG_REG_R1, tmp64 >> 32);
#else
@@ -526,8 +526,8 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
tci_read_reg(regs, TCG_REG_R1),
tci_read_reg(regs, TCG_REG_R2),
tci_read_reg(regs, TCG_REG_R3),
- tci_read_reg(regs, TCG_REG_R5),
- tci_read_reg(regs, TCG_REG_R6));
+ tci_read_reg(regs, TCG_REG_R4),
+ tci_read_reg(regs, TCG_REG_R5));
tci_write_reg(regs, TCG_REG_R0, tmp64);
#endif
break;
diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 7e3bed811e..aba7f75ad1 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -181,9 +181,7 @@ static const int tcg_target_reg_alloc_order[] = {
TCG_REG_R1,
TCG_REG_R2,
TCG_REG_R3,
-#if 0 /* used for TCG_REG_CALL_STACK */
TCG_REG_R4,
-#endif
TCG_REG_R5,
TCG_REG_R6,
TCG_REG_R7,
@@ -206,19 +204,16 @@ static const int tcg_target_call_iarg_regs[] = {
TCG_REG_R1,
TCG_REG_R2,
TCG_REG_R3,
-#if 0 /* used for TCG_REG_CALL_STACK */
TCG_REG_R4,
-#endif
TCG_REG_R5,
- TCG_REG_R6,
#if TCG_TARGET_REG_BITS == 32
/* 32 bit hosts need 2 * MAX_OPC_PARAM_IARGS registers. */
+ TCG_REG_R6,
TCG_REG_R7,
TCG_REG_R8,
TCG_REG_R9,
TCG_REG_R10,
TCG_REG_R11,
- TCG_REG_R12,
#endif
};