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vc4: Use r3 instead of r5 for temps, since r5 only has 32 bits of storage

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Reserving a whole accumulator for temps is awful in the first place, but
I'll fix that later.
This commit is contained in:
Eric Anholt 2014-07-04 10:23:50 -07:00
parent 23b2bad991
commit db9f41ea88
1 changed files with 8 additions and 8 deletions
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16
src/gallium/drivers/vc4/vc4_qpu_emit.c
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@ -56,9 +56,9 @@ fixup_raddr_conflict(uint64_t *insts, uint32_t *ni,
if ((src0.mux == QPU_MUX_A || src0.mux == QPU_MUX_B) &&
(src1->mux == QPU_MUX_A || src1->mux == QPU_MUX_B) &&
src0.addr != src1->addr) {
insts[(*ni)++] = qpu_inst(qpu_a_MOV(qpu_r5(), *src1),
insts[(*ni)++] = qpu_inst(qpu_a_MOV(qpu_r3(), *src1),
qpu_m_NOP());
*src1 = qpu_r5();
*src1 = qpu_r3();
}
}
@ -67,7 +67,7 @@ vc4_generate_code(struct qcompile *c)
{
uint64_t *insts = malloc(sizeof(uint64_t) * 1024); /* XXX: sizing */
uint32_t ni = 0;
struct qpu_reg allocate_to_qpu_reg[4 + 32 + 32];
struct qpu_reg allocate_to_qpu_reg[3 + 32 + 32];
bool reg_in_use[ARRAY_SIZE(allocate_to_qpu_reg)];
int *reg_allocated = calloc(c->num_temps, sizeof(*reg_allocated));
int *reg_uses_remaining =
@ -77,12 +77,12 @@ vc4_generate_code(struct qcompile *c)
reg_in_use[i] = false;
for (int i = 0; i < c->num_temps; i++)
reg_allocated[i] = -1;
for (int i = 0; i < 4; i++)
for (int i = 0; i < 3; i++)
allocate_to_qpu_reg[i] = qpu_rn(i);
for (int i = 0; i < 32; i++)
allocate_to_qpu_reg[i + 4] = qpu_ra(i);
allocate_to_qpu_reg[i + 3] = qpu_ra(i);
for (int i = 0; i < 32; i++)
allocate_to_qpu_reg[i + 4 + 32] = qpu_rb(i);
allocate_to_qpu_reg[i + 3 + 32] = qpu_rb(i);
struct simple_node *node;
foreach(node, &c->instructions) {
@ -283,13 +283,13 @@ vc4_generate_code(struct qcompile *c)
case QOP_PACK_COLORS:
for (int i = 0; i < 4; i++) {
insts[ni++] = qpu_inst(qpu_a_NOP(),
qpu_m_MOV(qpu_r5(), src[i]));
qpu_m_MOV(qpu_r3(), src[i]));
insts[ni - 1] |= QPU_PM;
insts[ni - 1] |= QPU_SET_FIELD(QPU_PACK_MUL_8A + i,
QPU_PACK);
}
insts[ni++] = qpu_inst(qpu_a_MOV(dst, qpu_r5()),
insts[ni++] = qpu_inst(qpu_a_MOV(dst, qpu_r3()),
qpu_m_NOP());
break;