| /************************************************************************** |
| * |
| * 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 "pipe/p_compiler.h" |
| #include "util/u_cpu_detect.h" |
| #include "util/u_debug.h" |
| #include "lp_bld_debug.h" |
| #include "lp_bld_init.h" |
| |
| #include <llvm-c/Transforms/Scalar.h> |
| |
| |
| #ifdef DEBUG |
| 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 }, |
| { "nopt", GALLIVM_DEBUG_NO_OPT, NULL }, |
| DEBUG_NAMED_VALUE_END |
| }; |
| #endif |
| |
| |
| LLVMModuleRef lp_build_module = NULL; |
| LLVMExecutionEngineRef lp_build_engine = NULL; |
| LLVMModuleProviderRef lp_build_provider = NULL; |
| LLVMTargetDataRef lp_build_target = NULL; |
| LLVMPassManagerRef lp_build_pass = NULL; |
| |
| |
| /* |
| * Optimization values are: |
| * - 0: None (-O0) |
| * - 1: Less (-O1) |
| * - 2: Default (-O2, -Os) |
| * - 3: Aggressive (-O3) |
| * |
| * 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 |
| }; |
| |
| |
| extern void |
| lp_register_oprofile_jit_event_listener(LLVMExecutionEngineRef EE); |
| |
| extern void |
| lp_set_target_options(void); |
| |
| |
| void |
| lp_build_init(void) |
| { |
| #ifdef DEBUG |
| gallivm_debug = debug_get_flags_option("GALLIVM_DEBUG", lp_bld_debug_flags, 0 ); |
| #endif |
| |
| lp_set_target_options(); |
| |
| LLVMInitializeNativeTarget(); |
| |
| LLVMLinkInJIT(); |
| |
| if (!lp_build_module) |
| lp_build_module = LLVMModuleCreateWithName("gallivm"); |
| |
| if (!lp_build_provider) |
| lp_build_provider = LLVMCreateModuleProviderForExistingModule(lp_build_module); |
| |
| if (!lp_build_engine) { |
| enum LLVM_CodeGenOpt_Level optlevel; |
| char *error = NULL; |
| |
| if (gallivm_debug & GALLIVM_DEBUG_NO_OPT) { |
| optlevel = None; |
| } |
| else { |
| optlevel = Default; |
| } |
| |
| if (LLVMCreateJITCompiler(&lp_build_engine, lp_build_provider, |
| (unsigned)optlevel, &error)) { |
| _debug_printf("%s\n", error); |
| LLVMDisposeMessage(error); |
| assert(0); |
| } |
| |
| #if defined(DEBUG) || defined(PROFILE) |
| lp_register_oprofile_jit_event_listener(lp_build_engine); |
| #endif |
| } |
| |
| if (!lp_build_target) |
| lp_build_target = LLVMGetExecutionEngineTargetData(lp_build_engine); |
| |
| if (!lp_build_pass) { |
| lp_build_pass = LLVMCreateFunctionPassManager(lp_build_provider); |
| LLVMAddTargetData(lp_build_target, lp_build_pass); |
| |
| 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 */ |
| LLVMAddCFGSimplificationPass(lp_build_pass); |
| LLVMAddPromoteMemoryToRegisterPass(lp_build_pass); |
| LLVMAddConstantPropagationPass(lp_build_pass); |
| 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(lp_build_pass); |
| } |
| LLVMAddGVNPass(lp_build_pass); |
| } else { |
| /* We need at least this pass to prevent the backends to fail in |
| * unexpected ways. |
| */ |
| LLVMAddPromoteMemoryToRegisterPass(lp_build_pass); |
| } |
| } |
| |
| util_cpu_detect(); |
| |
| #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; |
| #endif |
| } |
| |
| |
| /* |
| * 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 |