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authorRichard Henderson <richard.henderson@linaro.org>2023-04-24 02:38:03 -0500
committerRichard Henderson <richard.henderson@linaro.org>2023-05-16 15:21:39 -0700
commit33982b890b057319daf5a9a0678dbffc80ed8880 (patch)
tree1a25113b1972bda2ade2e3d4917ee4346bce8b8b /tcg
parent3df73c7e393b8190372f2d276b7ebc523199cfa1 (diff)
tcg/sparc64: Allocate %g2 as a third temporary
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
-rw-r--r--tcg/sparc64/tcg-target.c.inc15
1 files changed, 7 insertions, 8 deletions
diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc
index e997db2645..64464ab363 100644
--- a/tcg/sparc64/tcg-target.c.inc
+++ b/tcg/sparc64/tcg-target.c.inc
@@ -83,9 +83,10 @@ static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
#define ALL_GENERAL_REGS MAKE_64BIT_MASK(0, 32)
#define ALL_QLDST_REGS (ALL_GENERAL_REGS & ~SOFTMMU_RESERVE_REGS)
-/* Define some temporary registers. T2 is used for constant generation. */
+/* Define some temporary registers. T3 is used for constant generation. */
#define TCG_REG_T1 TCG_REG_G1
-#define TCG_REG_T2 TCG_REG_O7
+#define TCG_REG_T2 TCG_REG_G2
+#define TCG_REG_T3 TCG_REG_O7
#ifndef CONFIG_SOFTMMU
# define TCG_GUEST_BASE_REG TCG_REG_I5
@@ -110,7 +111,6 @@ static const int tcg_target_reg_alloc_order[] = {
TCG_REG_I4,
TCG_REG_I5,
- TCG_REG_G2,
TCG_REG_G3,
TCG_REG_G4,
TCG_REG_G5,
@@ -492,8 +492,8 @@ static void tcg_out_movi_int(TCGContext *s, TCGType type, TCGReg ret,
static void tcg_out_movi(TCGContext *s, TCGType type,
TCGReg ret, tcg_target_long arg)
{
- tcg_debug_assert(ret != TCG_REG_T2);
- tcg_out_movi_int(s, type, ret, arg, false, TCG_REG_T2);
+ tcg_debug_assert(ret != TCG_REG_T3);
+ tcg_out_movi_int(s, type, ret, arg, false, TCG_REG_T3);
}
static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rs)
@@ -885,10 +885,8 @@ static void tcg_out_jmpl_const(TCGContext *s, const tcg_insn_unit *dest,
{
uintptr_t desti = (uintptr_t)dest;
- /* Be careful not to clobber %o7 for a tail call. */
tcg_out_movi_int(s, TCG_TYPE_PTR, TCG_REG_T1,
- desti & ~0xfff, in_prologue,
- tail_call ? TCG_REG_G2 : TCG_REG_O7);
+ desti & ~0xfff, in_prologue, TCG_REG_T2);
tcg_out_arithi(s, tail_call ? TCG_REG_G0 : TCG_REG_O7,
TCG_REG_T1, desti & 0xfff, JMPL);
}
@@ -1856,6 +1854,7 @@ static void tcg_target_init(TCGContext *s)
tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); /* stack pointer */
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T1); /* for internal use */
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T2); /* for internal use */
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_T3); /* for internal use */
}
#define ELF_HOST_MACHINE EM_SPARCV9