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i965/vec4: split VEC4_OPCODE_FROM_DOUBLE into one opcode per destination's type

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This way we can set the destination type as double to all these new opcodes,
avoiding any optimizer's confusion that was happening before.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
[ Francisco Jerez: Drop no_spill workaround originally needed due to
  the bogus destination type of VEC4_OPCODE_FROM_DOUBLE. ]
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
This commit is contained in:
Samuel Iglesias Gonsálvez
2017-03-24 08:46:13 +01:00
committed by Francisco Jerez
parent 50a5217637
commit 6e3265eae5
7 changed files with 60 additions and 27 deletions
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23
src/intel/compiler/brw_vec4_generator.cpp
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@@ -1940,9 +1940,28 @@ generate_code(struct brw_codegen *p,
break;
}
case VEC4_OPCODE_FROM_DOUBLE: {
case VEC4_OPCODE_DOUBLE_TO_F32:
case VEC4_OPCODE_DOUBLE_TO_D32:
case VEC4_OPCODE_DOUBLE_TO_U32: {
assert(type_sz(src[0].type) == 8);
assert(type_sz(dst.type) == 4);
assert(type_sz(dst.type) == 8);
brw_reg_type dst_type;
switch (inst->opcode) {
case VEC4_OPCODE_DOUBLE_TO_F32:
dst_type = BRW_REGISTER_TYPE_F;
break;
case VEC4_OPCODE_DOUBLE_TO_D32:
dst_type = BRW_REGISTER_TYPE_D;
break;
case VEC4_OPCODE_DOUBLE_TO_U32:
dst_type = BRW_REGISTER_TYPE_UD;
break;
default:
unreachable("Not supported conversion");
}
dst = retype(dst, dst_type);
brw_set_default_access_mode(p, BRW_ALIGN_1);