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i965: Move optimizations from brw_nir_lower_io to brw_postprocess_nir.

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This simplifies things.  Every caller of brw_nir_lower_io() immediately
calls brw_postprocess_nir().  The only real change this will have is
that we get an extra brw_nir_optimize() call when compiling compute
shaders, but that seems fine.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Kenneth Graunke 2016-02-24 21:40:37 -08:00
parent dcd4a841e9
commit 51f8797993
1 changed files with 3 additions and 1 deletions
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4
src/mesa/drivers/dri/i965/brw_nir.c
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@ -518,7 +518,7 @@ brw_nir_lower_io(nir_shader *nir,
OPT_V(brw_nir_lower_outputs, devinfo, is_scalar);
OPT_V(nir_lower_io, nir_var_all, is_scalar ? type_size_scalar : type_size_vec4);
return nir_optimize(nir, is_scalar);
return nir;
}
/* Prepare the given shader for codegen
@ -539,6 +539,8 @@ brw_postprocess_nir(nir_shader *nir,
bool progress; /* Written by OPT and OPT_V */
(void)progress;
nir = nir_optimize(nir, is_scalar);
if (devinfo->gen >= 6) {
/* Try and fuse multiply-adds */
OPT(brw_nir_opt_peephole_ffma);