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| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-09-16 12:52:21 +0200 |
|---|---|---|
| committer | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-09-16 13:18:44 +0200 |
| commit | 44e2501d354061878130cb2c22397909b127db87 (patch) | |
| tree | e71f91aab017f6ff65b3c18a0177eba4831f46d5 | |
| parent | d474cf666a5cf038d5cc47b4736f007d385e417e (diff) | |
radeonsi: emit DLDEXP and DFRACEXP TGSI opcodesldexp
Note: this causes spurious regressions in some current piglit tests,
because the tests incorrectly assume that there is no denorm support for
doubles. I'm going to send out a fix for those tests as well.
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_pipe.c | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c | 25 |
2 files changed, 26 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index 114969d47a..531e614855 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -746,6 +746,7 @@ static int si_get_shader_param(struct pipe_screen* pscreen, case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS: case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED: case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED: + case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: return 1; case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: @@ -765,7 +766,6 @@ static int si_get_shader_param(struct pipe_screen* pscreen, /* Unsupported boolean features. */ case PIPE_SHADER_CAP_SUBROUTINES: case PIPE_SHADER_CAP_SUPPORTED_IRS: - case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: return 0; } return 0; diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c index ba7ec4f410..818ca499d9 100644 --- a/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c +++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_alu.c @@ -734,6 +734,27 @@ static void emit_rsq(const struct lp_build_tgsi_action *action, bld_base->base.one, sqrt); } +static void dfracexp_fetch_args(struct lp_build_tgsi_context *bld_base, + struct lp_build_emit_data *emit_data) +{ + emit_data->args[0] = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_X); + emit_data->arg_count = 1; +} + +static void dfracexp_emit(const struct lp_build_tgsi_action *action, + struct lp_build_tgsi_context *bld_base, + struct lp_build_emit_data *emit_data) +{ + struct si_shader_context *ctx = si_shader_context(bld_base); + + emit_data->output[emit_data->chan] = + lp_build_intrinsic(ctx->ac.builder, "llvm.amdgcn.frexp.mant.f64", + ctx->ac.f64, &emit_data->args[0], 1, 0); + emit_data->output1[emit_data->chan] = + lp_build_intrinsic(ctx->ac.builder, "llvm.amdgcn.frexp.exp.i32.f64", + ctx->ac.i32, &emit_data->args[0], 1, 0); +} + void si_shader_context_init_alu(struct lp_build_tgsi_context *bld_base) { lp_set_default_actions(bld_base); @@ -772,6 +793,10 @@ void si_shader_context_init_alu(struct lp_build_tgsi_context *bld_base) bld_base->op_actions[TGSI_OPCODE_DSQRT].intr_name = "llvm.sqrt.f64"; bld_base->op_actions[TGSI_OPCODE_DTRUNC].emit = build_tgsi_intrinsic_nomem; bld_base->op_actions[TGSI_OPCODE_DTRUNC].intr_name = "llvm.trunc.f64"; + bld_base->op_actions[TGSI_OPCODE_DFRACEXP].fetch_args = dfracexp_fetch_args; + bld_base->op_actions[TGSI_OPCODE_DFRACEXP].emit = dfracexp_emit; + bld_base->op_actions[TGSI_OPCODE_DLDEXP].emit = build_tgsi_intrinsic_nomem; + bld_base->op_actions[TGSI_OPCODE_DLDEXP].intr_name = "llvm.amdgcn.ldexp.f64"; bld_base->op_actions[TGSI_OPCODE_EX2].emit = build_tgsi_intrinsic_nomem; bld_base->op_actions[TGSI_OPCODE_EX2].intr_name = "llvm.exp2.f32"; bld_base->op_actions[TGSI_OPCODE_FLR].emit = build_tgsi_intrinsic_nomem; |