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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include "util/u_debug.h"
#include "util/u_cpu_detect.h"
#include "lp_bld_debug.h"
#include "lp_bld_init.h"
#include "lp_bld_type.h"
#include <llvm-c/Core.h>
#include <llvm-c/Analysis.h>
unsigned gallivm_perf = 0;
static const struct debug_named_value lp_bld_perf_flags[] = {
{ "brilinear", GALLIVM_PERF_BRILINEAR, "enable brilinear optimization" },
{ "rho_approx", GALLIVM_PERF_RHO_APPROX, "enable rho_approx optimization" },
{ "no_quad_lod", GALLIVM_PERF_NO_QUAD_LOD, "disable quad_lod optimization" },
{ "no_aos_sampling", GALLIVM_PERF_NO_AOS_SAMPLING, "disable aos sampling optimization" },
{ "nopt", GALLIVM_PERF_NO_OPT, "disable optimization passes to speed up shader compilation" },
DEBUG_NAMED_VALUE_END
};
unsigned gallivm_debug = 0;
static const struct debug_named_value lp_bld_debug_flags[] = {
{ "tgsi", GALLIVM_DEBUG_TGSI, NULL },
{ "ir", GALLIVM_DEBUG_IR, NULL },
{ "asm", GALLIVM_DEBUG_ASM, NULL },
{ "perf", GALLIVM_DEBUG_PERF, NULL },
{ "gc", GALLIVM_DEBUG_GC, NULL },
/* Don't allow setting DUMP_BC for release builds, since writing the files may be an issue with setuid. */
#if MESA_DEBUG
{ "dumpbc", GALLIVM_DEBUG_DUMP_BC, NULL },
#endif
{ "symbols", GALLIVM_DEBUG_SYMBOLS, NULL },
DEBUG_NAMED_VALUE_END
};
DEBUG_GET_ONCE_FLAGS_OPTION(gallivm_debug, "GALLIVM_DEBUG", lp_bld_debug_flags, 0)
unsigned lp_native_vector_width;
unsigned
lp_build_init_native_width(void)
{
// Default to 256 until we're confident llvmpipe with 512 is as correct and not slower than 256
lp_native_vector_width = MIN2(util_get_cpu_caps()->max_vector_bits, 256);
assert(lp_native_vector_width);
lp_native_vector_width = debug_get_num_option("LP_NATIVE_VECTOR_WIDTH", lp_native_vector_width);
assert(lp_native_vector_width);
return lp_native_vector_width;
}
void
lp_init_env_options(void)
{
gallivm_debug = debug_get_option_gallivm_debug();
if (!__normal_user())
gallivm_debug &= ~GALLIVM_DEBUG_SYMBOLS;
gallivm_perf = debug_get_flags_option("GALLIVM_PERF", lp_bld_perf_flags, 0 );
}
unsigned
gallivm_get_perf_flags(void)
{
return gallivm_perf;
}
void
lp_init_clock_hook(struct gallivm_state *gallivm)
{
if (gallivm->get_time_hook)
return;
LLVMTypeRef get_time_type = LLVMFunctionType(LLVMInt64TypeInContext(gallivm->context), NULL, 0, 1);
gallivm->get_time_hook = LLVMAddFunction(gallivm->module, "get_time_hook", get_time_type);
}
/**
* Validate a function.
* Verification is only done with debug builds.
*/
void
gallivm_verify_function(struct gallivm_state *gallivm,
LLVMValueRef func)
{
/* Verify the LLVM IR. If invalid, dump and abort */
#if MESA_DEBUG
if (LLVMVerifyFunction(func, LLVMPrintMessageAction)) {
lp_debug_dump_value(func);
assert(0);
return;
}
#endif
if (gallivm_debug & GALLIVM_DEBUG_IR) {
/* Print the LLVM IR to stderr */
lp_debug_dump_value(func);
debug_printf("\n");
}
}
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