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tcg/ppc: Introduce Altivec registers 

Altivec supports 32 128-bit vector registers, whose names are
by convention v0 through v31.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
This commit is contained in:
Richard Henderson 2019-06-23 19:04:34 +02:00
parent 98b2e3c9ab
commit 42281ec646
2 changed files with 65 additions and 34 deletions
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11
tcg/ppc/tcg-target.h
View File

@ -31,7 +31,7 @@
# define TCG_TARGET_REG_BITS 32
#endif
#define TCG_TARGET_NB_REGS 32
#define TCG_TARGET_NB_REGS 64
#define TCG_TARGET_INSN_UNIT_SIZE 4
#define TCG_TARGET_TLB_DISPLACEMENT_BITS 16
@ -45,6 +45,15 @@ typedef enum {
TCG_REG_R24, TCG_REG_R25, TCG_REG_R26, TCG_REG_R27,
TCG_REG_R28, TCG_REG_R29, TCG_REG_R30, TCG_REG_R31,
TCG_REG_V0, TCG_REG_V1, TCG_REG_V2, TCG_REG_V3,
TCG_REG_V4, TCG_REG_V5, TCG_REG_V6, TCG_REG_V7,
TCG_REG_V8, TCG_REG_V9, TCG_REG_V10, TCG_REG_V11,
TCG_REG_V12, TCG_REG_V13, TCG_REG_V14, TCG_REG_V15,
TCG_REG_V16, TCG_REG_V17, TCG_REG_V18, TCG_REG_V19,
TCG_REG_V20, TCG_REG_V21, TCG_REG_V22, TCG_REG_V23,
TCG_REG_V24, TCG_REG_V25, TCG_REG_V26, TCG_REG_V27,
TCG_REG_V28, TCG_REG_V29, TCG_REG_V30, TCG_REG_V31,
TCG_REG_CALL_STACK = TCG_REG_R1,
TCG_AREG0 = TCG_REG_R27
} TCGReg;

88
tcg/ppc/tcg-target.inc.c
View File

@ -42,6 +42,9 @@
# define TCG_REG_TMP1 TCG_REG_R12
#endif
#define TCG_VEC_TMP1 TCG_REG_V0
#define TCG_VEC_TMP2 TCG_REG_V1
#define TCG_REG_TB TCG_REG_R31
#define USE_REG_TB (TCG_TARGET_REG_BITS == 64)
@ -72,39 +75,15 @@ bool have_isa_3_00;
#endif
#ifdef CONFIG_DEBUG_TCG
static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
"r0",
"r1",
"r2",
"r3",
"r4",
"r5",
"r6",
"r7",
"r8",
"r9",
"r10",
"r11",
"r12",
"r13",
"r14",
"r15",
"r16",
"r17",
"r18",
"r19",
"r20",
"r21",
"r22",
"r23",
"r24",
"r25",
"r26",
"r27",
"r28",
"r29",
"r30",
"r31"
static const char tcg_target_reg_names[TCG_TARGET_NB_REGS][4] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
"v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
"v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
"v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
"v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
};
#endif
@ -139,6 +118,26 @@ static const int tcg_target_reg_alloc_order[] = {
TCG_REG_R5,
TCG_REG_R4,
TCG_REG_R3,
/* V0 and V1 reserved as temporaries; V20 - V31 are call-saved */
TCG_REG_V2, /* call clobbered, vectors */
TCG_REG_V3,
TCG_REG_V4,
TCG_REG_V5,
TCG_REG_V6,
TCG_REG_V7,
TCG_REG_V8,
TCG_REG_V9,
TCG_REG_V10,
TCG_REG_V11,
TCG_REG_V12,
TCG_REG_V13,
TCG_REG_V14,
TCG_REG_V15,
TCG_REG_V16,
TCG_REG_V17,
TCG_REG_V18,
TCG_REG_V19,
};
static const int tcg_target_call_iarg_regs[] = {
@ -2808,6 +2807,27 @@ static void tcg_target_init(TCGContext *s)
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R11);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R12);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V0);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V1);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V2);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V3);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V4);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V5);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V6);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V7);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V8);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V9);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V10);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V11);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V12);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V13);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V14);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V15);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V16);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V17);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V18);
tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_V19);
s->reserved_regs = 0;
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* tcg temp */
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* stack pointer */
@ -2818,6 +2838,8 @@ static void tcg_target_init(TCGContext *s)
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13); /* thread pointer */
#endif
tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1); /* mem temp */
tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP1);
tcg_regset_set_reg(s->reserved_regs, TCG_VEC_TMP2);
if (USE_REG_TB) {
tcg_regset_set_reg(s->reserved_regs, TCG_REG_TB); /* tb->tc_ptr */
}