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intel/compiler: Move register pressure calculation into IR analysis object

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This defines a new BRW_ANALYSIS object which wraps the register
pressure computation code along with its result.  For the rationale
see the previous commits converting the liveness and dominance
analysis passes to the IR analysis framework.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4012>
This commit is contained in:
Francisco Jerez
2016-03-13 16:35:49 -07:00
committed by Matt Turner
parent f6cdf66cd6
commit e5e4d016b9
3 changed files with 47 additions and 19 deletions
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6
src/intel/compiler/brw_fs_visitor.cpp
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@@ -886,7 +886,7 @@ fs_visitor::fs_visitor(const struct brw_compiler *compiler, void *log_data,
: backend_shader(compiler, log_data, mem_ctx, shader, prog_data),
key(key), gs_compile(NULL), prog_data(prog_data),
input_vue_map(input_vue_map),
live_analysis(this),
live_analysis(this), regpressure_analysis(this),
dispatch_width(dispatch_width),
shader_time_index(shader_time_index),
bld(fs_builder(this, dispatch_width).at_end())
@@ -904,7 +904,7 @@ fs_visitor::fs_visitor(const struct brw_compiler *compiler, void *log_data,
&prog_data->base.base),
key(&c->key.base), gs_compile(c),
prog_data(&prog_data->base.base),
live_analysis(this),
live_analysis(this), regpressure_analysis(this),
dispatch_width(8),
shader_time_index(shader_time_index),
bld(fs_builder(this, dispatch_width).at_end())
@@ -935,8 +935,6 @@ fs_visitor::init()
this->first_non_payload_grf = 0;
this->max_grf = devinfo->gen >= 7 ? GEN7_MRF_HACK_START : BRW_MAX_GRF;
this->regs_live_at_ip = NULL;
this->uniforms = 0;
this->last_scratch = 0;
this->pull_constant_loc = NULL;