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intel/compiler: Don't handle fsign.sat

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No shader-db or CI changes on any Intel platform.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
This commit is contained in:
Ian Romanick
2018-09-09 14:06:43 -07:00
parent a68dd47b91
commit b44c9292b7
2 changed files with 3 additions and 23 deletions
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src/intel/compiler/brw_fs_nir.cpp
+1 -13
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@@ -842,6 +842,7 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
break;
case nir_op_fsign: {
assert(!instr->dest.saturate);
if (op[0].abs) {
/* Straightforward since the source can be assumed to be either
* strictly >= 0 or strictly <= 0 depending on the setting of the
@@ -854,10 +855,6 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
: bld.MOV(result, brw_imm_f(1.0f));
set_predicate(BRW_PREDICATE_NORMAL, inst);
if (instr->dest.saturate)
inst->saturate = true;
} else if (type_sz(op[0].type) < 8) {
/* AND(val, 0x80000000) gives the sign bit.
*
@@ -873,10 +870,6 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
inst = bld.OR(result_int, result_int, brw_imm_ud(0x3f800000u));
inst->predicate = BRW_PREDICATE_NORMAL;
if (instr->dest.saturate) {
inst = bld.MOV(result, result);
inst->saturate = true;
}
} else {
/* For doubles we do the same but we need to consider:
*
@@ -897,11 +890,6 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
set_predicate(BRW_PREDICATE_NORMAL,
bld.OR(r, r, brw_imm_ud(0x3ff00000u)));
if (instr->dest.saturate) {
inst = bld.MOV(result, result);
inst->saturate = true;
}
}
break;
}