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agx: Add AGX_MESA_DEBUG=noopt option

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To disable the optimizer. Trying to root cause a Neverball bug, this
gives one less thing to worry.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17198>
This commit is contained in:
Alyssa Rosenzweig 2022-08-02 20:59:21 -04:00
parent f3877f56ba
commit 24c3084411
2 changed files with 9 additions and 5 deletions
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13
src/asahi/compiler/agx_compile.c
View file

@ -39,6 +39,7 @@ static const struct debug_named_value agx_debug_options[] = {
{"verbose", AGX_DBG_VERBOSE, "Disassemble verbosely"},
{"internal", AGX_DBG_INTERNAL, "Dump even internal shaders"},
{"novalidate",AGX_DBG_NOVALIDATE,"Skip IR validation in debug builds"},
{"noopt", AGX_DBG_NOOPT, "Disable backend optimizations"},
DEBUG_NAMED_VALUE_END
};
@ -1743,12 +1744,14 @@ agx_compile_shader_nir(nir_shader *nir,
if (agx_debug & AGX_DBG_SHADERS && !skip_internal)
agx_print_shader(ctx, stdout);
agx_optimizer(ctx);
agx_dce(ctx);
agx_validate(ctx, "Optimization");
if (likely(!(agx_debug & AGX_DBG_NOOPT))) {
agx_optimizer(ctx);
agx_dce(ctx);
agx_validate(ctx, "Optimization");
if (agx_debug & AGX_DBG_SHADERS && !skip_internal)
agx_print_shader(ctx, stdout);
if (agx_debug & AGX_DBG_SHADERS && !skip_internal)
agx_print_shader(ctx, stdout);
}
agx_ra(ctx);

1
src/asahi/compiler/agx_compiler.h
View file

@ -45,6 +45,7 @@ enum agx_dbg {
AGX_DBG_VERBOSE = BITFIELD_BIT(3),
AGX_DBG_INTERNAL = BITFIELD_BIT(4),
AGX_DBG_NOVALIDATE = BITFIELD_BIT(5),
AGX_DBG_NOOPT = BITFIELD_BIT(6),
};
extern int agx_debug;