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vc4: Drop some confused code about pack/unpack handling.

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At one point I thought packs and unpacks were in the same field of the
instruction.  They aren't.  These instructions therefore never cause a
pack.

total instructions in shared programs: 89472 -> 89390 (-0.09%)
instructions in affected programs:     15261 -> 15179 (-0.54%)
This commit is contained in:
Eric Anholt 2015-10-26 13:22:18 -07:00
parent a7b424e835
commit 548b05d53f
1 changed files with 4 additions and 23 deletions
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27
src/gallium/drivers/vc4/vc4_qpu_emit.c
View file

@ -431,7 +431,7 @@ vc4_generate_code(struct vc4_context *vc4, struct vc4_compile *c)
case QOP_UNPACK_8C_F:
case QOP_UNPACK_8D_F:
case QOP_UNPACK_16A_F:
case QOP_UNPACK_16B_F: {
case QOP_UNPACK_16B_F:
if (src[0].mux == QPU_MUX_R4) {
queue(c, qpu_a_MOV(dst, src[0]));
*last_inst(c) |= QPU_PM;
@ -442,22 +442,12 @@ vc4_generate_code(struct vc4_context *vc4, struct vc4_compile *c)
} else {
assert(src[0].mux == QPU_MUX_A);
/* Since we're setting the pack bits, if the
* destination is in A it would get re-packed.
*/
queue(c, qpu_a_FMAX((dst.mux == QPU_MUX_A ?
qpu_rb(31) : dst),
src[0], src[0]));
queue(c, qpu_a_FMAX(dst, src[0], src[0]));
*last_inst(c) |=
QPU_SET_FIELD(unpack_map[qinst->op -
QOP_UNPACK_8A_F],
QPU_UNPACK);
if (dst.mux == QPU_MUX_A) {
queue(c, qpu_a_MOV(dst, qpu_rb(31)));
}
}
}
break;
case QOP_UNPACK_8A_I:
@ -465,22 +455,13 @@ vc4_generate_code(struct vc4_context *vc4, struct vc4_compile *c)
case QOP_UNPACK_8C_I:
case QOP_UNPACK_8D_I:
case QOP_UNPACK_16A_I:
case QOP_UNPACK_16B_I: {
case QOP_UNPACK_16B_I:
assert(src[0].mux == QPU_MUX_A);
/* Since we're setting the pack bits, if the
* destination is in A it would get re-packed.
*/
queue(c, qpu_a_MOV((dst.mux == QPU_MUX_A ?
qpu_rb(31) : dst), src[0]));
queue(c, qpu_a_MOV(dst, src[0]));
*last_inst(c) |= QPU_SET_FIELD(unpack_map[qinst->op -
QOP_UNPACK_8A_I],
QPU_UNPACK);
if (dst.mux == QPU_MUX_A) {
queue(c, qpu_a_MOV(dst, qpu_rb(31)));
}
}
break;
default: