From: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
These helpers allow us to move AVR register values to/from the specified
TCGv_i64
argument.
To prevent VMX helpers accessing the cpu_avr{l,h} arrays directly, add extra TCG
temporaries as required.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-Id: <20181217122405.18732-3-mark.cave-ayl...@ilande.co.uk>
---
target/ppc/translate.c | 10 +++
target/ppc/translate/vmx-impl.inc.c | 128 ++++++++++++++++++++++------
2 files changed, 110 insertions(+), 28 deletions(-)
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 1d4bf624a3..fa3e8dc114 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -6704,6 +6704,16 @@ static inline void set_fpr(int regno, TCGv_i64 src)
tcg_gen_mov_i64(cpu_fpr[regno], src);
}
+static inline void get_avr64(TCGv_i64 dst, int regno, bool high)
+{
+ tcg_gen_mov_i64(dst, (high ? cpu_avrh : cpu_avrl)[regno]);
+}
+
+static inline void set_avr64(int regno, TCGv_i64 src, bool high)
+{
+ tcg_gen_mov_i64((high ? cpu_avrh : cpu_avrl)[regno], src);
+}
+
#include "translate/fp-impl.inc.c"
#include "translate/vmx-impl.inc.c"
diff --git a/target/ppc/translate/vmx-impl.inc.c
b/target/ppc/translate/vmx-impl.inc.c
index 3cb6fc2926..30046c6e31 100644
--- a/target/ppc/translate/vmx-impl.inc.c
+++ b/target/ppc/translate/vmx-impl.inc.c
@@ -18,52 +18,66 @@ static inline TCGv_ptr gen_avr_ptr(int reg)
static void glue(gen_, name)(DisasContext *ctx)
\
{ \
TCGv EA; \
+ TCGv_i64 avr; \
if (unlikely(!ctx->altivec_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_VPU); \
return; \
} \
gen_set_access_type(ctx, ACCESS_INT); \
+ avr = tcg_temp_new_i64(); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
tcg_gen_andi_tl(EA, EA, ~0xf); \
/* We only need to swap high and low halves. gen_qemu_ld64_i64 does \
necessary 64-bit byteswap already. */ \
if (ctx->le_mode) { \
- gen_qemu_ld64_i64(ctx, cpu_avrl[rD(ctx->opcode)], EA); \
+ gen_qemu_ld64_i64(ctx, avr, EA); \
+ set_avr64(rD(ctx->opcode), avr, false); \
tcg_gen_addi_tl(EA, EA, 8); \
- gen_qemu_ld64_i64(ctx, cpu_avrh[rD(ctx->opcode)], EA); \
+ gen_qemu_ld64_i64(ctx, avr, EA); \
+ set_avr64(rD(ctx->opcode), avr, true); \
} else { \
- gen_qemu_ld64_i64(ctx, cpu_avrh[rD(ctx->opcode)], EA); \
+ gen_qemu_ld64_i64(ctx, avr, EA); \
+ set_avr64(rD(ctx->opcode), avr, true); \
tcg_gen_addi_tl(EA, EA, 8); \
- gen_qemu_ld64_i64(ctx, cpu_avrl[rD(ctx->opcode)], EA); \
+ gen_qemu_ld64_i64(ctx, avr, EA); \
+ set_avr64(rD(ctx->opcode), avr, false); \
} \
tcg_temp_free(EA); \
+ tcg_temp_free_i64(avr); \
}
#define GEN_VR_STX(name, opc2, opc3) \
static void gen_st##name(DisasContext *ctx) \
{ \
TCGv EA; \
+ TCGv_i64 avr; \
if (unlikely(!ctx->altivec_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_VPU); \
return; \
} \
gen_set_access_type(ctx, ACCESS_INT); \
+ avr = tcg_temp_new_i64(); \
EA = tcg_temp_new(); \
gen_addr_reg_index(ctx, EA); \
tcg_gen_andi_tl(EA, EA, ~0xf); \
/* We only need to swap high and low halves. gen_qemu_st64_i64 does \
necessary 64-bit byteswap already. */ \
if (ctx->le_mode) { \
- gen_qemu_st64_i64(ctx, cpu_avrl[rD(ctx->opcode)], EA); \
+ get_avr64(avr, rD(ctx->opcode), false); \
+ gen_qemu_st64_i64(ctx, avr, EA); \
tcg_gen_addi_tl(EA, EA, 8); \
- gen_qemu_st64_i64(ctx, cpu_avrh[rD(ctx->opcode)], EA); \
+ get_avr64(avr, rD(ctx->opcode), true); \
+ gen_qemu_st64_i64(ctx, avr, EA); \
} else { \
- gen_qemu_st64_i64(ctx, cpu_avrh[rD(ctx->opcode)], EA); \
+ get_avr64(avr, rD(ctx->opcode), true); \
+ gen_qemu_st64_i64(ctx, avr, EA); \
tcg_gen_addi_tl(EA, EA, 8); \
- gen_qemu_st64_i64(ctx, cpu_avrl[rD(ctx->opcode)], EA); \
+ get_avr64(avr, rD(ctx->opcode), false); \
+ gen_qemu_st64_i64(ctx, avr, EA); \
} \
tcg_temp_free(EA); \
+ tcg_temp_free_i64(avr); \
}
#define GEN_VR_LVE(name, opc2, opc3, size) \
@@ -159,15 +173,20 @@ static void gen_lvsr(DisasContext *ctx)
static void gen_mfvscr(DisasContext *ctx)
{
TCGv_i32 t;
+ TCGv_i64 avr;
if (unlikely(!ctx->altivec_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VPU);
return;
}
- tcg_gen_movi_i64(cpu_avrh[rD(ctx->opcode)], 0);
+ avr = tcg_temp_new_i64();
+ tcg_gen_movi_i64(avr, 0);
+ set_avr64(rD(ctx->opcode), avr, true);
t = tcg_temp_new_i32();
tcg_gen_ld_i32(t, cpu_env, offsetof(CPUPPCState, vscr));
- tcg_gen_extu_i32_i64(cpu_avrl[rD(ctx->opcode)], t);
+ tcg_gen_extu_i32_i64(avr, t);
+ set_avr64(rD(ctx->opcode), avr, false);
tcg_temp_free_i32(t);
+ tcg_temp_free_i64(avr);
}
static void gen_mtvscr(DisasContext *ctx)
@@ -188,6 +207,7 @@ static void glue(gen_, name)(DisasContext *ctx)
\
TCGv_i64 t0 = tcg_temp_new_i64(); \
TCGv_i64 t1 = tcg_temp_new_i64(); \
TCGv_i64 t2 = tcg_temp_new_i64(); \
+ TCGv_i64 avr = tcg_temp_new_i64(); \
TCGv_i64 ten, z; \
\
if (unlikely(!ctx->altivec_enabled)) { \
@@ -199,26 +219,35 @@ static void glue(gen_, name)(DisasContext *ctx)
\
z = tcg_const_i64(0); \
\
if (add_cin) { \
- tcg_gen_mulu2_i64(t0, t1, cpu_avrl[rA(ctx->opcode)], ten); \
- tcg_gen_andi_i64(t2, cpu_avrl[rB(ctx->opcode)], 0xF); \
- tcg_gen_add2_i64(cpu_avrl[rD(ctx->opcode)], t2, t0, t1, t2, z); \
+ get_avr64(avr, rA(ctx->opcode), false); \
+ tcg_gen_mulu2_i64(t0, t1, avr, ten); \
+ get_avr64(avr, rB(ctx->opcode), false); \
+ tcg_gen_andi_i64(t2, avr, 0xF); \
+ tcg_gen_add2_i64(avr, t2, t0, t1, t2, z); \
+ set_avr64(rD(ctx->opcode), avr, false); \
} else { \
- tcg_gen_mulu2_i64(cpu_avrl[rD(ctx->opcode)], t2, \
- cpu_avrl[rA(ctx->opcode)], ten); \
+ get_avr64(avr, rA(ctx->opcode), false); \
+ tcg_gen_mulu2_i64(avr, t2, avr, ten); \
+ set_avr64(rD(ctx->opcode), avr, false); \
} \
\
if (ret_carry) { \
- tcg_gen_mulu2_i64(t0, t1, cpu_avrh[rA(ctx->opcode)], ten); \
- tcg_gen_add2_i64(t0, cpu_avrl[rD(ctx->opcode)], t0, t1, t2, z); \
- tcg_gen_movi_i64(cpu_avrh[rD(ctx->opcode)], 0); \
+ get_avr64(avr, rA(ctx->opcode), true); \
+ tcg_gen_mulu2_i64(t0, t1, avr, ten); \
+ tcg_gen_add2_i64(t0, avr, t0, t1, t2, z); \
+ set_avr64(rD(ctx->opcode), avr, false); \
+ set_avr64(rD(ctx->opcode), z, true); \
} else { \
- tcg_gen_mul_i64(t0, cpu_avrh[rA(ctx->opcode)], ten); \
- tcg_gen_add_i64(cpu_avrh[rD(ctx->opcode)], t0, t2); \
+ get_avr64(avr, rA(ctx->opcode), true); \
+ tcg_gen_mul_i64(t0, avr, ten); \
+ tcg_gen_add_i64(avr, t0, t2); \
+ set_avr64(rD(ctx->opcode), avr, true); \
} \
\
tcg_temp_free_i64(t0); \
tcg_temp_free_i64(t1); \
tcg_temp_free_i64(t2); \
+ tcg_temp_free_i64(avr); \
tcg_temp_free_i64(ten); \
tcg_temp_free_i64(z); \
} \
@@ -232,12 +261,27 @@ GEN_VX_VMUL10(vmul10ecuq, 1, 1);
#define GEN_VX_LOGICAL(name, tcg_op, opc2, opc3) \
static void glue(gen_, name)(DisasContext *ctx)
\
{ \
+ TCGv_i64 t0 = tcg_temp_new_i64(); \
+ TCGv_i64 t1 = tcg_temp_new_i64(); \
+ TCGv_i64 avr = tcg_temp_new_i64(); \
+ \
if (unlikely(!ctx->altivec_enabled)) { \
gen_exception(ctx, POWERPC_EXCP_VPU); \
return; \
} \
- tcg_op(cpu_avrh[rD(ctx->opcode)], cpu_avrh[rA(ctx->opcode)],
cpu_avrh[rB(ctx->opcode)]); \
- tcg_op(cpu_avrl[rD(ctx->opcode)], cpu_avrl[rA(ctx->opcode)],
cpu_avrl[rB(ctx->opcode)]); \
+ get_avr64(t0, rA(ctx->opcode), true); \
+ get_avr64(t1, rB(ctx->opcode), true); \
+ tcg_op(avr, t0, t1); \
+ set_avr64(rD(ctx->opcode), avr, true); \
+ \
+ get_avr64(t0, rA(ctx->opcode), false); \
+ get_avr64(t1, rB(ctx->opcode), false); \
+ tcg_op(avr, t0, t1); \
+ set_avr64(rD(ctx->opcode), avr, false); \
+ \
+ tcg_temp_free_i64(t0); \
+ tcg_temp_free_i64(t1); \
+ tcg_temp_free_i64(avr); \
}
GEN_VX_LOGICAL(vand, tcg_gen_and_i64, 2, 16);
@@ -406,6 +450,7 @@ GEN_VXFORM(vmrglw, 6, 6);
static void gen_vmrgew(DisasContext *ctx)
{
TCGv_i64 tmp;
+ TCGv_i64 avr;
int VT, VA, VB;
if (unlikely(!ctx->altivec_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VPU);
@@ -415,15 +460,28 @@ static void gen_vmrgew(DisasContext *ctx)
VA = rA(ctx->opcode);
VB = rB(ctx->opcode);
tmp = tcg_temp_new_i64();
- tcg_gen_shri_i64(tmp, cpu_avrh[VB], 32);
- tcg_gen_deposit_i64(cpu_avrh[VT], cpu_avrh[VA], tmp, 0, 32);
- tcg_gen_shri_i64(tmp, cpu_avrl[VB], 32);
- tcg_gen_deposit_i64(cpu_avrl[VT], cpu_avrl[VA], tmp, 0, 32);
+ avr = tcg_temp_new_i64();
+
+ get_avr64(avr, VB, true);
+ tcg_gen_shri_i64(tmp, avr, 32);
+ get_avr64(avr, VA, true);
+ tcg_gen_deposit_i64(avr, avr, tmp, 0, 32);
+ set_avr64(VT, avr, true);
+
+ get_avr64(avr, VB, false);
+ tcg_gen_shri_i64(tmp, avr, 32);
+ get_avr64(avr, VA, false);
+ tcg_gen_deposit_i64(avr, avr, tmp, 0, 32);
+ set_avr64(VT, avr, false);
+
tcg_temp_free_i64(tmp);
+ tcg_temp_free_i64(avr);
}
static void gen_vmrgow(DisasContext *ctx)
{
+ TCGv_i64 t0, t1;
+ TCGv_i64 avr;
int VT, VA, VB;
if (unlikely(!ctx->altivec_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VPU);
@@ -432,9 +490,23 @@ static void gen_vmrgow(DisasContext *ctx)
VT = rD(ctx->opcode);
VA = rA(ctx->opcode);
VB = rB(ctx->opcode);
+ t0 = tcg_temp_new_i64();
+ t1 = tcg_temp_new_i64();
+ avr = tcg_temp_new_i64();
- tcg_gen_deposit_i64(cpu_avrh[VT], cpu_avrh[VB], cpu_avrh[VA], 32, 32);
- tcg_gen_deposit_i64(cpu_avrl[VT], cpu_avrl[VB], cpu_avrl[VA], 32, 32);
+ get_avr64(t0, VB, true);
+ get_avr64(t1, VA, true);
+ tcg_gen_deposit_i64(avr, t0, t1, 32, 32);
+ set_avr64(VT, avr, true);
+
+ get_avr64(t0, VB, false);
+ get_avr64(t1, VA, false);
+ tcg_gen_deposit_i64(avr, t0, t1, 32, 32);
+ set_avr64(VT, avr, false);
+
+ tcg_temp_free_i64(t0);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(avr);
}
GEN_VXFORM(vmuloub, 4, 0);
--
2.17.2
