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radv: introduce RADV_DEBUG=llvm option

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This option enables the LLVM compiler backend to be used
for shader compilation

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5445>
This commit is contained in:
Daniel Schürmann
2020-06-12 17:55:00 +01:00
committed by Samuel Pitoiset
parent 37e7a5e746
commit b78f64507e
3 changed files with 8 additions and 0 deletions
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2
docs/envvars.rst
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@@ -510,6 +510,8 @@ RADV driver environment variables
``RADV_DEBUG`` ``RADV_DEBUG``
a comma-separated list of named flags, which do various things: a comma-separated list of named flags, which do various things:
``llvm``
enable LLVM compiler backend
``allbos`` ``allbos``
force all allocated buffers to be referenced in submissions force all allocated buffers to be referenced in submissions
``allentrypoints`` ``allentrypoints``

1
src/amd/vulkan/radv_debug.h
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@@ -57,6 +57,7 @@ enum {
RADV_DEBUG_DUMP_META_SHADERS = 0x4000000, RADV_DEBUG_DUMP_META_SHADERS = 0x4000000,
RADV_DEBUG_NO_MEMORY_CACHE = 0x8000000, RADV_DEBUG_NO_MEMORY_CACHE = 0x8000000,
RADV_DEBUG_DISCARD_TO_DEMOTE = 0x10000000, RADV_DEBUG_DISCARD_TO_DEMOTE = 0x10000000,
RADV_DEBUG_LLVM = 0x20000000,
}; };
enum { enum {

5
src/amd/vulkan/radv_device.c
View File

@@ -507,6 +507,7 @@ static const struct debug_control radv_debug_options[] = {
{"allentrypoints", RADV_DEBUG_ALL_ENTRYPOINTS}, {"allentrypoints", RADV_DEBUG_ALL_ENTRYPOINTS},
{"metashaders", RADV_DEBUG_DUMP_META_SHADERS}, {"metashaders", RADV_DEBUG_DUMP_META_SHADERS},
{"nomemorycache", RADV_DEBUG_NO_MEMORY_CACHE}, {"nomemorycache", RADV_DEBUG_NO_MEMORY_CACHE},
{"llvm", RADV_DEBUG_LLVM},
{NULL, 0} {NULL, 0}
}; };
@@ -677,6 +678,10 @@ VkResult radv_CreateInstance(
instance->perftest_flags = parse_debug_string(getenv("RADV_PERFTEST"), instance->perftest_flags = parse_debug_string(getenv("RADV_PERFTEST"),
radv_perftest_options); radv_perftest_options);
if (instance->debug_flags & RADV_DEBUG_LLVM) {
instance->perftest_flags &= ~RADV_PERFTEST_ACO;
}
if (instance->perftest_flags & RADV_PERFTEST_ACO) if (instance->perftest_flags & RADV_PERFTEST_ACO)
fprintf(stderr, "WARNING: Experimental compiler backend enabled. Here be dragons! Incorrect rendering, GPU hangs and/or resets are likely\n"); fprintf(stderr, "WARNING: Experimental compiler backend enabled. Here be dragons! Incorrect rendering, GPU hangs and/or resets are likely\n");