Mesa (master): aco: implement 16-bit nir_op_frexp_sig/nir_op_frexp_exp
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Fri Apr 10 06:43:31 UTC 2020
Module: Mesa
Branch: master
Commit: a8b45d7034eb482e217133180dff3e62bfb35150
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a8b45d7034eb482e217133180dff3e62bfb35150
Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date: Fri Apr 3 10:41:17 2020 +0200
aco: implement 16-bit nir_op_frexp_sig/nir_op_frexp_exp
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Daniel Schürmann <daniel at schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4452>
---
src/amd/compiler/aco_instruction_selection.cpp | 26 +++++++++++++++-----------
1 file changed, 15 insertions(+), 11 deletions(-)
diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp
index bd95d096bd2..1c601f161c1 100644
--- a/src/amd/compiler/aco_instruction_selection.cpp
+++ b/src/amd/compiler/aco_instruction_selection.cpp
@@ -1985,12 +1985,14 @@ void visit_alu_instr(isel_context *ctx, nir_alu_instr *instr)
break;
}
case nir_op_frexp_sig: {
- if (dst.size() == 1) {
- bld.vop1(aco_opcode::v_frexp_mant_f32, Definition(dst),
- get_alu_src(ctx, instr->src[0]));
- } else if (dst.size() == 2) {
- bld.vop1(aco_opcode::v_frexp_mant_f64, Definition(dst),
- get_alu_src(ctx, instr->src[0]));
+ Temp src = get_alu_src(ctx, instr->src[0]);
+ if (dst.regClass() == v2b) {
+ Temp tmp = bld.vop1(aco_opcode::v_frexp_mant_f16, bld.def(v1), src);
+ bld.pseudo(aco_opcode::p_split_vector, Definition(dst), bld.def(v2b), tmp);
+ } else if (dst.regClass() == v1) {
+ bld.vop1(aco_opcode::v_frexp_mant_f32, Definition(dst), src);
+ } else if (dst.regClass() == v2) {
+ bld.vop1(aco_opcode::v_frexp_mant_f64, Definition(dst), src);
} else {
fprintf(stderr, "Unimplemented NIR instr bit size: ");
nir_print_instr(&instr->instr, stderr);
@@ -1999,12 +2001,14 @@ void visit_alu_instr(isel_context *ctx, nir_alu_instr *instr)
break;
}
case nir_op_frexp_exp: {
- if (instr->src[0].src.ssa->bit_size == 32) {
- bld.vop1(aco_opcode::v_frexp_exp_i32_f32, Definition(dst),
- get_alu_src(ctx, instr->src[0]));
+ Temp src = get_alu_src(ctx, instr->src[0]);
+ if (instr->src[0].src.ssa->bit_size == 16) {
+ Temp tmp = bld.vop1(aco_opcode::v_frexp_exp_i16_f16, bld.def(v1), src);
+ bld.pseudo(aco_opcode::p_extract_vector, Definition(dst), tmp, Operand(0u));
+ } else if (instr->src[0].src.ssa->bit_size == 32) {
+ bld.vop1(aco_opcode::v_frexp_exp_i32_f32, Definition(dst), src);
} else if (instr->src[0].src.ssa->bit_size == 64) {
- bld.vop1(aco_opcode::v_frexp_exp_i32_f64, Definition(dst),
- get_alu_src(ctx, instr->src[0]));
+ bld.vop1(aco_opcode::v_frexp_exp_i32_f64, Definition(dst), src);
} else {
fprintf(stderr, "Unimplemented NIR instr bit size: ");
nir_print_instr(&instr->instr, stderr);
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