**************************************************************************/
+#include "pipe/p_config.h"
#include "pipe/p_compiler.h"
#include "util/u_cpu_detect.h"
#include "util/u_debug.h"
#include "util/u_memory.h"
-#include "util/u_simple_list.h"
+#include "util/simple_list.h"
+#include "util/os_time.h"
+#include "lp_bld.h"
#include "lp_bld_debug.h"
+#include "lp_bld_misc.h"
#include "lp_bld_init.h"
+#include <llvm/Config/llvm-config.h>
+#include <llvm-c/Analysis.h>
#include <llvm-c/Transforms/Scalar.h>
+#if LLVM_VERSION_MAJOR >= 7
+#include <llvm-c/Transforms/Utils.h>
+#endif
+#include <llvm-c/BitWriter.h>
+#if GALLIVM_HAVE_CORO
+#if LLVM_VERSION_MAJOR <= 8 && (defined(PIPE_ARCH_AARCH64) || defined (PIPE_ARCH_ARM) || defined(PIPE_ARCH_S390))
+#include <llvm-c/Transforms/IPO.h>
+#endif
+#include <llvm-c/Transforms/Coroutines.h>
+#endif
+unsigned gallivm_perf = 0;
+
+static const struct debug_named_value lp_bld_perf_flags[] = {
+ { "no_brilinear", GALLIVM_PERF_NO_BRILINEAR, "disable brilinear optimization" },
+ { "no_rho_approx", GALLIVM_PERF_NO_RHO_APPROX, "disable 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" },
+ { "no_filter_hacks", GALLIVM_PERF_NO_BRILINEAR | GALLIVM_PERF_NO_RHO_APPROX |
+ GALLIVM_PERF_NO_QUAD_LOD, "disable filter optimization hacks" },
+ DEBUG_NAMED_VALUE_END
+};
#ifdef DEBUG
unsigned gallivm_debug = 0;
{ "tgsi", GALLIVM_DEBUG_TGSI, NULL },
{ "ir", GALLIVM_DEBUG_IR, NULL },
{ "asm", GALLIVM_DEBUG_ASM, NULL },
- { "nopt", GALLIVM_DEBUG_NO_OPT, NULL },
{ "perf", GALLIVM_DEBUG_PERF, NULL },
- { "no_brilinear", GALLIVM_DEBUG_NO_BRILINEAR, NULL },
{ "gc", GALLIVM_DEBUG_GC, NULL },
+ { "dumpbc", GALLIVM_DEBUG_DUMP_BC, NULL },
DEBUG_NAMED_VALUE_END
};
static boolean gallivm_initialized = FALSE;
+unsigned lp_native_vector_width;
+
/*
* Optimization values are:
* See also CodeGenOpt::Level in llvm/Target/TargetMachine.h
*/
enum LLVM_CodeGenOpt_Level {
-#if HAVE_LLVM >= 0x207
None, // -O0
Less, // -O1
Default, // -O2, -Os
Aggressive // -O3
-#else
- Default,
- None,
- Aggressive
-#endif
};
-/**
- * LLVM 2.6 permits only one ExecutionEngine to be created. This is it.
- */
-static LLVMExecutionEngineRef GlobalEngine = NULL;
-
-/**
- * Same gallivm state shared by all contexts.
- */
-static struct gallivm_state *GlobalGallivm = NULL;
-
-
-
-
-extern void
-lp_register_oprofile_jit_event_listener(LLVMExecutionEngineRef EE);
-
-extern void
-lp_set_target_options(void);
-
-
-
/**
* Create the LLVM (optimization) pass manager and install
* relevant optimization passes.
create_pass_manager(struct gallivm_state *gallivm)
{
assert(!gallivm->passmgr);
+ assert(gallivm->target);
- gallivm->passmgr = LLVMCreateFunctionPassManager(gallivm->provider);
+ gallivm->passmgr = LLVMCreateFunctionPassManagerForModule(gallivm->module);
if (!gallivm->passmgr)
return FALSE;
- LLVMAddTargetData(gallivm->target, gallivm->passmgr);
+#if GALLIVM_HAVE_CORO
+ gallivm->cgpassmgr = LLVMCreatePassManager();
+#endif
+ /*
+ * TODO: some per module pass manager with IPO passes might be helpful -
+ * the generated texture functions may benefit from inlining if they are
+ * simple, or constant propagation into them, etc.
+ */
+
+ {
+ char *td_str;
+ // New ones from the Module.
+ td_str = LLVMCopyStringRepOfTargetData(gallivm->target);
+ LLVMSetDataLayout(gallivm->module, td_str);
+ free(td_str);
+ }
- if ((gallivm_debug & GALLIVM_DEBUG_NO_OPT) == 0) {
- /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
- * but there are more on SVN.
- * TODO: Add more passes.
+#if GALLIVM_HAVE_CORO
+#if LLVM_VERSION_MAJOR <= 8 && (defined(PIPE_ARCH_AARCH64) || defined (PIPE_ARCH_ARM) || defined(PIPE_ARCH_S390))
+ LLVMAddArgumentPromotionPass(gallivm->cgpassmgr);
+ LLVMAddFunctionAttrsPass(gallivm->cgpassmgr);
+#endif
+ LLVMAddCoroEarlyPass(gallivm->cgpassmgr);
+ LLVMAddCoroSplitPass(gallivm->cgpassmgr);
+ LLVMAddCoroElidePass(gallivm->cgpassmgr);
+#endif
+
+ if ((gallivm_perf & GALLIVM_PERF_NO_OPT) == 0) {
+ /*
+ * TODO: Evaluate passes some more - keeping in mind
+ * both quality of generated code and compile times.
+ */
+ /*
+ * NOTE: if you change this, don't forget to change the output
+ * with GALLIVM_DEBUG_DUMP_BC in gallivm_compile_module.
*/
+ LLVMAddScalarReplAggregatesPass(gallivm->passmgr);
+ LLVMAddEarlyCSEPass(gallivm->passmgr);
LLVMAddCFGSimplificationPass(gallivm->passmgr);
-
- if (HAVE_LLVM >= 0x207 && sizeof(void*) == 4) {
- /* For LLVM >= 2.7 and 32-bit build, use this order of passes to
- * avoid generating bad code.
- * Test with piglit glsl-vs-sqrt-zero test.
- */
- LLVMAddConstantPropagationPass(gallivm->passmgr);
- LLVMAddPromoteMemoryToRegisterPass(gallivm->passmgr);
- }
- else {
- LLVMAddPromoteMemoryToRegisterPass(gallivm->passmgr);
- LLVMAddConstantPropagationPass(gallivm->passmgr);
- }
-
- if (util_cpu_caps.has_sse4_1) {
- /* FIXME: There is a bug in this pass, whereby the combination
- * of fptosi and sitofp (necessary for trunc/floor/ceil/round
- * implementation) somehow becomes invalid code.
- */
- LLVMAddInstructionCombiningPass(gallivm->passmgr);
- }
+ /*
+ * FIXME: LICM is potentially quite useful. However, for some
+ * rather crazy shaders the compile time can reach _hours_ per shader,
+ * due to licm implying lcssa (since llvm 3.5), which can take forever.
+ * Even for sane shaders, the cost of licm is rather high (and not just
+ * due to lcssa, licm itself too), though mostly only in cases when it
+ * can actually move things, so having to disable it is a pity.
+ * LLVMAddLICMPass(gallivm->passmgr);
+ */
+ LLVMAddReassociatePass(gallivm->passmgr);
+ LLVMAddPromoteMemoryToRegisterPass(gallivm->passmgr);
+#if LLVM_VERSION_MAJOR <= 11
+ LLVMAddConstantPropagationPass(gallivm->passmgr);
+#endif
+ LLVMAddInstructionCombiningPass(gallivm->passmgr);
LLVMAddGVNPass(gallivm->passmgr);
}
else {
*/
LLVMAddPromoteMemoryToRegisterPass(gallivm->passmgr);
}
+#if GALLIVM_HAVE_CORO
+ LLVMAddCoroCleanupPass(gallivm->passmgr);
+#endif
return TRUE;
}
/**
- * Free gallivm object's LLVM allocations, but not the gallivm object itself.
+ * Free gallivm object's LLVM allocations, but not any generated code
+ * nor the gallivm object itself.
*/
-static void
-free_gallivm_state(struct gallivm_state *gallivm)
+void
+gallivm_free_ir(struct gallivm_state *gallivm)
{
-#if HAVE_LLVM >= 0x207 /* XXX or 0x208? */
- /* This leads to crashes w/ some versions of LLVM */
- LLVMModuleRef mod;
- char *error;
-
- if (gallivm->engine && gallivm->provider)
- LLVMRemoveModuleProvider(gallivm->engine, gallivm->provider,
- &mod, &error);
-#endif
-
-#if 0
- /* XXX this seems to crash with all versions of LLVM */
- if (gallivm->provider)
- LLVMDisposeModuleProvider(gallivm->provider);
-#endif
-
- if (gallivm->passmgr)
+ if (gallivm->passmgr) {
LLVMDisposePassManager(gallivm->passmgr);
+ }
-#if HAVE_LLVM >= 0x207
- if (gallivm->module)
- LLVMDisposeModule(gallivm->module);
+#if GALLIVM_HAVE_CORO
+ if (gallivm->cgpassmgr) {
+ LLVMDisposePassManager(gallivm->cgpassmgr);
+ }
#endif
-#if 0
- /* Don't free the exec engine, it's a global/singleton */
- if (gallivm->engine)
+ if (gallivm->engine) {
+ /* This will already destroy any associated module */
LLVMDisposeExecutionEngine(gallivm->engine);
-#endif
+ } else if (gallivm->module) {
+ LLVMDisposeModule(gallivm->module);
+ }
-#if 0
- /* Don't free the TargetData, it's owned by the exec engine */
- LLVMDisposeTargetData(gallivm->target);
-#endif
+ if (gallivm->cache) {
+ lp_free_objcache(gallivm->cache->jit_obj_cache);
+ free(gallivm->cache->data);
+ }
+ FREE(gallivm->module_name);
- if (gallivm->context)
- LLVMContextDispose(gallivm->context);
+ if (gallivm->target) {
+ LLVMDisposeTargetData(gallivm->target);
+ }
if (gallivm->builder)
LLVMDisposeBuilder(gallivm->builder);
+ /* The LLVMContext should be owned by the parent of gallivm. */
+
gallivm->engine = NULL;
gallivm->target = NULL;
gallivm->module = NULL;
- gallivm->provider = NULL;
+ gallivm->module_name = NULL;
+ gallivm->cgpassmgr = NULL;
gallivm->passmgr = NULL;
gallivm->context = NULL;
gallivm->builder = NULL;
+ gallivm->cache = NULL;
}
/**
- * Allocate gallivm LLVM objects.
- * \return TRUE for success, FALSE for failure
+ * Free LLVM-generated code. Should be done AFTER gallivm_free_ir().
*/
-static boolean
-init_gallivm_state(struct gallivm_state *gallivm)
+static void
+gallivm_free_code(struct gallivm_state *gallivm)
{
- assert(gallivm_initialized);
- assert(!gallivm->context);
assert(!gallivm->module);
- assert(!gallivm->provider);
-
- gallivm->context = LLVMContextCreate();
- if (!gallivm->context)
- goto fail;
-
- gallivm->module = LLVMModuleCreateWithNameInContext("gallivm",
- gallivm->context);
- if (!gallivm->module)
- goto fail;
+ assert(!gallivm->engine);
+ lp_free_generated_code(gallivm->code);
+ gallivm->code = NULL;
+ lp_free_memory_manager(gallivm->memorymgr);
+ gallivm->memorymgr = NULL;
+}
- gallivm->provider =
- LLVMCreateModuleProviderForExistingModule(gallivm->module);
- if (!gallivm->provider)
- goto fail;
- if (!GlobalEngine) {
- /* We can only create one LLVMExecutionEngine (w/ LLVM 2.6 anyway) */
+static boolean
+init_gallivm_engine(struct gallivm_state *gallivm)
+{
+ if (1) {
enum LLVM_CodeGenOpt_Level optlevel;
char *error = NULL;
+ int ret;
- if (gallivm_debug & GALLIVM_DEBUG_NO_OPT) {
+ if (gallivm_perf & GALLIVM_PERF_NO_OPT) {
optlevel = None;
}
else {
optlevel = Default;
}
- if (LLVMCreateJITCompiler(&GlobalEngine, gallivm->provider,
- (unsigned) optlevel, &error)) {
+ ret = lp_build_create_jit_compiler_for_module(&gallivm->engine,
+ &gallivm->code,
+ gallivm->cache,
+ gallivm->module,
+ gallivm->memorymgr,
+ (unsigned) optlevel,
+ &error);
+ if (ret) {
_debug_printf("%s\n", error);
LLVMDisposeMessage(error);
goto fail;
}
+ }
-#if defined(DEBUG) || defined(PROFILE)
- lp_register_oprofile_jit_event_listener(GlobalEngine);
-#endif
+ if (0) {
+ /*
+ * Dump the data layout strings.
+ */
+
+ LLVMTargetDataRef target = LLVMGetExecutionEngineTargetData(gallivm->engine);
+ char *data_layout;
+ char *engine_data_layout;
+
+ data_layout = LLVMCopyStringRepOfTargetData(gallivm->target);
+ engine_data_layout = LLVMCopyStringRepOfTargetData(target);
+
+ if (1) {
+ debug_printf("module target data = %s\n", data_layout);
+ debug_printf("engine target data = %s\n", engine_data_layout);
+ }
+
+ free(data_layout);
+ free(engine_data_layout);
}
- gallivm->engine = GlobalEngine;
+ return TRUE;
+
+fail:
+ return FALSE;
+}
- LLVMAddModuleProvider(gallivm->engine, gallivm->provider);//new
- gallivm->target = LLVMGetExecutionEngineTargetData(gallivm->engine);
- if (!gallivm->target)
+/**
+ * Allocate gallivm LLVM objects.
+ * \return TRUE for success, FALSE for failure
+ */
+static boolean
+init_gallivm_state(struct gallivm_state *gallivm, const char *name,
+ LLVMContextRef context, struct lp_cached_code *cache)
+{
+ assert(!gallivm->context);
+ assert(!gallivm->module);
+
+ if (!lp_build_init())
+ return FALSE;
+
+ gallivm->context = context;
+ gallivm->cache = cache;
+ if (!gallivm->context)
goto fail;
- if (!create_pass_manager(gallivm))
+ gallivm->module_name = NULL;
+ if (name) {
+ size_t size = strlen(name) + 1;
+ gallivm->module_name = MALLOC(size);
+ if (gallivm->module_name) {
+ memcpy(gallivm->module_name, name, size);
+ }
+ }
+
+ gallivm->module = LLVMModuleCreateWithNameInContext(name,
+ gallivm->context);
+ if (!gallivm->module)
goto fail;
gallivm->builder = LLVMCreateBuilderInContext(gallivm->context);
if (!gallivm->builder)
goto fail;
+ gallivm->memorymgr = lp_get_default_memory_manager();
+ if (!gallivm->memorymgr)
+ goto fail;
+
+ /* FIXME: MC-JIT only allows compiling one module at a time, and it must be
+ * complete when MC-JIT is created. So defer the MC-JIT engine creation for
+ * now.
+ */
+
+ /*
+ * MC-JIT engine compiles the module immediately on creation, so we can't
+ * obtain the target data from it. Instead we create a target data layout
+ * from a string.
+ *
+ * The produced layout strings are not precisely the same, but should make
+ * no difference for the kind of optimization passes we run.
+ *
+ * For reference this is the layout string on x64:
+ *
+ * e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-f128:128:128-n8:16:32:64
+ *
+ * See also:
+ * - http://llvm.org/docs/LangRef.html#datalayout
+ */
+
+ {
+ const unsigned pointer_size = 8 * sizeof(void *);
+ char layout[512];
+ snprintf(layout, sizeof layout, "%c-p:%u:%u:%u-i64:64:64-a0:0:%u-s0:%u:%u",
+#if UTIL_ARCH_LITTLE_ENDIAN
+ 'e', // little endian
+#else
+ 'E', // big endian
+#endif
+ pointer_size, pointer_size, pointer_size, // pointer size, abi alignment, preferred alignment
+ pointer_size, // aggregate preferred alignment
+ pointer_size, pointer_size); // stack objects abi alignment, preferred alignment
+
+ gallivm->target = LLVMCreateTargetData(layout);
+ if (!gallivm->target) {
+ return FALSE;
+ }
+ }
+
+ if (!create_pass_manager(gallivm))
+ goto fail;
+
return TRUE;
fail:
- free_gallivm_state(gallivm);
+ gallivm_free_ir(gallivm);
+ gallivm_free_code(gallivm);
return FALSE;
}
-struct callback
+boolean
+lp_build_init(void)
{
- garbage_collect_callback_func func;
- void *cb_data;
- struct callback *prev, *next;
-};
+ if (gallivm_initialized)
+ return TRUE;
+
+ /* LLVMLinkIn* are no-ops at runtime. They just ensure the respective
+ * component is linked at buildtime, which is sufficient for its static
+ * constructors to be called at load time.
+ */
+ LLVMLinkInMCJIT();
-/** list of all garbage collector callbacks */
-static struct callback callback_list = {NULL, NULL, NULL, NULL};
+#ifdef DEBUG
+ gallivm_debug = debug_get_option_gallivm_debug();
+#endif
+ gallivm_perf = debug_get_flags_option("GALLIVM_PERF", lp_bld_perf_flags, 0 );
-/**
- * Register a function with gallivm which will be called when we
- * do garbage collection.
- */
-void
-gallivm_register_garbage_collector_callback(garbage_collect_callback_func func,
- void *cb_data)
-{
- struct callback *cb;
+ lp_set_target_options();
+
+ util_cpu_detect();
- if (!callback_list.prev) {
- make_empty_list(&callback_list);
+ /* For simulating less capable machines */
+#ifdef DEBUG
+ if (debug_get_bool_option("LP_FORCE_SSE2", FALSE)) {
+ assert(util_cpu_caps.has_sse2);
+ util_cpu_caps.has_sse3 = 0;
+ util_cpu_caps.has_ssse3 = 0;
+ util_cpu_caps.has_sse4_1 = 0;
+ util_cpu_caps.has_sse4_2 = 0;
+ util_cpu_caps.has_avx = 0;
+ util_cpu_caps.has_avx2 = 0;
+ util_cpu_caps.has_f16c = 0;
+ util_cpu_caps.has_fma = 0;
}
+#endif
- /* see if already in list */
- foreach(cb, &callback_list) {
- if (cb->func == func && cb->cb_data == cb_data)
- return;
+ if (util_cpu_caps.has_avx2 || util_cpu_caps.has_avx) {
+ lp_native_vector_width = 256;
+ } else {
+ /* Leave it at 128, even when no SIMD extensions are available.
+ * Really needs to be a multiple of 128 so can fit 4 floats.
+ */
+ lp_native_vector_width = 128;
}
- /* add to list */
- cb = CALLOC_STRUCT(callback);
- if (cb) {
- cb->func = func;
- cb->cb_data = cb_data;
- insert_at_head(&callback_list, cb);
+ lp_native_vector_width = debug_get_num_option("LP_NATIVE_VECTOR_WIDTH",
+ lp_native_vector_width);
+
+#if LLVM_VERSION_MAJOR < 4
+ if (lp_native_vector_width <= 128) {
+ /* Hide AVX support, as often LLVM AVX intrinsics are only guarded by
+ * "util_cpu_caps.has_avx" predicate, and lack the
+ * "lp_native_vector_width > 128" predicate. And also to ensure a more
+ * consistent behavior, allowing one to test SSE2 on AVX machines.
+ * XXX: should not play games with util_cpu_caps directly as it might
+ * get used for other things outside llvm too.
+ */
+ util_cpu_caps.has_avx = 0;
+ util_cpu_caps.has_avx2 = 0;
+ util_cpu_caps.has_f16c = 0;
+ util_cpu_caps.has_fma = 0;
}
+#endif
+
+#ifdef PIPE_ARCH_PPC_64
+ /* Set the NJ bit in VSCR to 0 so denormalized values are handled as
+ * specified by IEEE standard (PowerISA 2.06 - Section 6.3). This guarantees
+ * that some rounding and half-float to float handling does not round
+ * incorrectly to 0.
+ * XXX: should eventually follow same logic on all platforms.
+ * Right now denorms get explicitly disabled (but elsewhere) for x86,
+ * whereas ppc64 explicitly enables them...
+ */
+ if (util_cpu_caps.has_altivec) {
+ unsigned short mask[] = { 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
+ 0xFFFF, 0xFFFF, 0xFFFE, 0xFFFF };
+ __asm (
+ "mfvscr %%v1\n"
+ "vand %0,%%v1,%0\n"
+ "mtvscr %0"
+ :
+ : "r" (*mask)
+ );
+ }
+#endif
+
+ gallivm_initialized = TRUE;
+
+ return TRUE;
}
+
/**
- * Remove a callback.
+ * Create a new gallivm_state object.
*/
-void
-gallivm_remove_garbage_collector_callback(garbage_collect_callback_func func,
- void *cb_data)
+struct gallivm_state *
+gallivm_create(const char *name, LLVMContextRef context,
+ struct lp_cached_code *cache)
{
- struct callback *cb;
-
- /* search list */
- foreach(cb, &callback_list) {
- if (cb->func == func && cb->cb_data == cb_data) {
- /* found, remove it */
- remove_from_list(cb);
- return;
+ struct gallivm_state *gallivm;
+
+ gallivm = CALLOC_STRUCT(gallivm_state);
+ if (gallivm) {
+ if (!init_gallivm_state(gallivm, name, context, cache)) {
+ FREE(gallivm);
+ gallivm = NULL;
}
}
+
+ assert(gallivm != NULL);
+ return gallivm;
}
/**
- * Call the callback functions (which are typically in the
- * draw module and llvmpipe driver.
+ * Destroy a gallivm_state object.
*/
-static void
-call_garbage_collector_callbacks(void)
+void
+gallivm_destroy(struct gallivm_state *gallivm)
{
- struct callback *cb;
- foreach(cb, &callback_list) {
- cb->func(cb->cb_data);
- }
+ gallivm_free_ir(gallivm);
+ gallivm_free_code(gallivm);
+ FREE(gallivm);
}
-
/**
- * Other gallium components using gallivm should call this periodically
- * to let us do garbage collection (or at least try to free memory
- * accumulated by the LLVM libraries).
+ * Validate a function.
+ * Verification is only done with debug builds.
*/
void
-gallivm_garbage_collect(struct gallivm_state *gallivm)
+gallivm_verify_function(struct gallivm_state *gallivm,
+ LLVMValueRef func)
{
- if (gallivm->context) {
- if (gallivm_debug & GALLIVM_DEBUG_GC)
- debug_printf("***** Doing LLVM garbage collection\n");
+ /* Verify the LLVM IR. If invalid, dump and abort */
+#ifdef DEBUG
+ if (LLVMVerifyFunction(func, LLVMPrintMessageAction)) {
+ lp_debug_dump_value(func);
+ assert(0);
+ return;
+ }
+#endif
- call_garbage_collector_callbacks();
- free_gallivm_state(gallivm);
- init_gallivm_state(gallivm);
+ if (gallivm_debug & GALLIVM_DEBUG_IR) {
+ /* Print the LLVM IR to stderr */
+ lp_debug_dump_value(func);
+ debug_printf("\n");
}
}
+/**
+ * Compile a module.
+ * This does IR optimization on all functions in the module.
+ */
void
-lp_build_init(void)
+gallivm_compile_module(struct gallivm_state *gallivm)
{
-#ifdef DEBUG
- gallivm_debug = debug_get_option_gallivm_debug();
-#endif
+ LLVMValueRef func;
+ int64_t time_begin = 0;
- lp_set_target_options();
+ assert(!gallivm->compiled);
- LLVMInitializeNativeTarget();
+ if (gallivm->builder) {
+ LLVMDisposeBuilder(gallivm->builder);
+ gallivm->builder = NULL;
+ }
- LLVMLinkInJIT();
+ if (gallivm->cache && gallivm->cache->data_size) {
+ goto skip_cached;
+ }
- util_cpu_detect();
-
- gallivm_initialized = TRUE;
+ /* Dump bitcode to a file */
+ if (gallivm_debug & GALLIVM_DEBUG_DUMP_BC) {
+ char filename[256];
+ assert(gallivm->module_name);
+ snprintf(filename, sizeof(filename), "ir_%s.bc", gallivm->module_name);
+ LLVMWriteBitcodeToFile(gallivm->module, filename);
+ debug_printf("%s written\n", filename);
+ debug_printf("Invoke as \"opt %s %s | llc -O%d %s%s\"\n",
+ gallivm_debug & GALLIVM_PERF_NO_OPT ? "-mem2reg" :
+ "-sroa -early-cse -simplifycfg -reassociate "
+ "-mem2reg -constprop -instcombine -gvn",
+ filename, gallivm_debug & GALLIVM_PERF_NO_OPT ? 0 : 2,
+ "[-mcpu=<-mcpu option>] ",
+ "[-mattr=<-mattr option(s)>]");
+ }
-#if 0
- /* For simulating less capable machines */
- util_cpu_caps.has_sse3 = 0;
- util_cpu_caps.has_ssse3 = 0;
- util_cpu_caps.has_sse4_1 = 0;
+ if (gallivm_debug & GALLIVM_DEBUG_PERF)
+ time_begin = os_time_get();
+
+#if GALLIVM_HAVE_CORO
+ LLVMRunPassManager(gallivm->cgpassmgr, gallivm->module);
#endif
-}
+ /* Run optimization passes */
+ LLVMInitializeFunctionPassManager(gallivm->passmgr);
+ func = LLVMGetFirstFunction(gallivm->module);
+ while (func) {
+ if (0) {
+ debug_printf("optimizing func %s...\n", LLVMGetValueName(func));
+ }
+ /* Disable frame pointer omission on debug/profile builds */
+ /* XXX: And workaround http://llvm.org/PR21435 */
+#if defined(DEBUG) || defined(PROFILE) || defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
+ LLVMAddTargetDependentFunctionAttr(func, "no-frame-pointer-elim", "true");
+ LLVMAddTargetDependentFunctionAttr(func, "no-frame-pointer-elim-non-leaf", "true");
+#endif
+ LLVMRunFunctionPassManager(gallivm->passmgr, func);
+ func = LLVMGetNextFunction(func);
+ }
+ LLVMFinalizeFunctionPassManager(gallivm->passmgr);
+
+ if (gallivm_debug & GALLIVM_DEBUG_PERF) {
+ int64_t time_end = os_time_get();
+ int time_msec = (int)((time_end - time_begin) / 1000);
+ assert(gallivm->module_name);
+ debug_printf("optimizing module %s took %d msec\n",
+ gallivm->module_name, time_msec);
+ }
-/**
- * Create a new gallivm_state object.
- * Note that we return a singleton.
- */
-struct gallivm_state *
-gallivm_create(void)
-{
- if (!GlobalGallivm) {
- GlobalGallivm = CALLOC_STRUCT(gallivm_state);
- if (GlobalGallivm) {
- if (!init_gallivm_state(GlobalGallivm)) {
- FREE(GlobalGallivm);
- GlobalGallivm = NULL;
+ /* Setting the module's DataLayout to an empty string will cause the
+ * ExecutionEngine to copy to the DataLayout string from its target machine
+ * to the module. As of LLVM 3.8 the module and the execution engine are
+ * required to have the same DataLayout.
+ *
+ * We must make sure we do this after running the optimization passes,
+ * because those passes need a correct datalayout string. For example, if
+ * those optimization passes see an empty datalayout, they will assume this
+ * is a little endian target and will do optimizations that break big endian
+ * machines.
+ *
+ * TODO: This is just a temporary work-around. The correct solution is for
+ * gallivm_init_state() to create a TargetMachine and pull the DataLayout
+ * from there. Currently, the TargetMachine used by llvmpipe is being
+ * implicitly created by the EngineBuilder in
+ * lp_build_create_jit_compiler_for_module()
+ */
+ skip_cached:
+ LLVMSetDataLayout(gallivm->module, "");
+ assert(!gallivm->engine);
+ if (!init_gallivm_engine(gallivm)) {
+ assert(0);
+ }
+ assert(gallivm->engine);
+
+ ++gallivm->compiled;
+
+ if (gallivm->debug_printf_hook)
+ LLVMAddGlobalMapping(gallivm->engine, gallivm->debug_printf_hook, debug_printf);
+
+ if (gallivm_debug & GALLIVM_DEBUG_ASM) {
+ LLVMValueRef llvm_func = LLVMGetFirstFunction(gallivm->module);
+
+ while (llvm_func) {
+ /*
+ * Need to filter out functions which don't have an implementation,
+ * such as the intrinsics. May not be sufficient in case of IPO?
+ * LLVMGetPointerToGlobal() will abort otherwise.
+ */
+ if (!LLVMIsDeclaration(llvm_func)) {
+ void *func_code = LLVMGetPointerToGlobal(gallivm->engine, llvm_func);
+ lp_disassemble(llvm_func, func_code);
}
+ llvm_func = LLVMGetNextFunction(llvm_func);
}
}
- return GlobalGallivm;
+
+#if defined(PROFILE)
+ {
+ LLVMValueRef llvm_func = LLVMGetFirstFunction(gallivm->module);
+
+ while (llvm_func) {
+ if (!LLVMIsDeclaration(llvm_func)) {
+ void *func_code = LLVMGetPointerToGlobal(gallivm->engine, llvm_func);
+ lp_profile(llvm_func, func_code);
+ }
+ llvm_func = LLVMGetNextFunction(llvm_func);
+ }
+ }
+#endif
}
-/**
- * Destroy a gallivm_state object.
- */
-void
-gallivm_destroy(struct gallivm_state *gallivm)
+
+func_pointer
+gallivm_jit_function(struct gallivm_state *gallivm,
+ LLVMValueRef func)
{
- /* No-op: don't destroy the singleton */
- (void) gallivm;
-}
+ void *code;
+ func_pointer jit_func;
+ int64_t time_begin = 0;
+ assert(gallivm->compiled);
+ assert(gallivm->engine);
+ if (gallivm_debug & GALLIVM_DEBUG_PERF)
+ time_begin = os_time_get();
-/*
- * Hack to allow the linking of release LLVM static libraries on a debug build.
- *
- * See also:
- * - http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/7234ea2b-0042-42ed-b4e2-5d8644dfb57d
- */
-#if defined(_MSC_VER) && defined(_DEBUG)
-#include <crtdefs.h>
-_CRTIMP void __cdecl
-_invalid_parameter_noinfo(void) {}
-#endif
+ code = LLVMGetPointerToGlobal(gallivm->engine, func);
+ assert(code);
+ jit_func = pointer_to_func(code);
+
+ if (gallivm_debug & GALLIVM_DEBUG_PERF) {
+ int64_t time_end = os_time_get();
+ int time_msec = (int)(time_end - time_begin) / 1000;
+ debug_printf(" jitting func %s took %d msec\n",
+ LLVMGetValueName(func), time_msec);
+ }
+
+ return jit_func;
+}
projects / mesa.git / blobdiff