diff options
Diffstat (limited to 'src/gallium/auxiliary/gallivm')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_assert.c | 101 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_assert.h | 41 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_init.c | 4 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_init.h | 2 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_logic.c | 67 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_logic.h | 5 | ||||
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_misc.cpp | 32 |
7 files changed, 229 insertions, 23 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_assert.c b/src/gallium/auxiliary/gallivm/lp_bld_assert.c new file mode 100644 index 0000000000..f2ebd868a8 --- /dev/null +++ b/src/gallium/auxiliary/gallivm/lp_bld_assert.c @@ -0,0 +1,101 @@ +/************************************************************************** + * + * Copyright 2010 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_memory.h" +#include "lp_bld_assert.h" +#include "lp_bld_init.h" +#include "lp_bld_printf.h" + + +/** + * A call to lp_build_assert() will build a function call to this function. + */ +static void +lp_assert(int condition, const char *msg) +{ + if (!condition) { + debug_printf("LLVM assertion '%s' failed!\n", msg); + assert(condition); + } +} + + + +/** + * lp_build_assert. + * + * Build an assertion in LLVM IR by building a function call to the + * lp_assert() function above. + * + * \param condition should be an 'i1' or 'i32' value + * \param msg a string to print if the assertion fails. + */ +LLVMValueRef +lp_build_assert(LLVMBuilderRef builder, LLVMValueRef condition, + const char *msg) +{ + LLVMModuleRef module; + LLVMTypeRef arg_types[2]; + LLVMValueRef msg_string, assert_func, params[2], r; + + module = LLVMGetGlobalParent(LLVMGetBasicBlockParent( + LLVMGetInsertBlock(builder))); + + msg_string = lp_build_const_string_variable(module, msg, strlen(msg) + 1); + + arg_types[0] = LLVMInt32Type(); + arg_types[1] = LLVMPointerType(LLVMInt8Type(), 0); + + /* lookup the lp_assert function */ + assert_func = LLVMGetNamedFunction(module, "lp_assert"); + + /* Create the assertion function if not found */ + if (!assert_func) { + LLVMTypeRef func_type = + LLVMFunctionType(LLVMVoidType(), arg_types, 2, 0); + + assert_func = LLVMAddFunction(module, "lp_assert", func_type); + LLVMSetFunctionCallConv(assert_func, LLVMCCallConv); + LLVMSetLinkage(assert_func, LLVMExternalLinkage); + LLVMAddGlobalMapping(lp_build_engine, assert_func, + func_to_pointer((func_pointer)lp_assert)); + } + assert(assert_func); + + /* build function call param list */ + params[0] = LLVMBuildZExt(builder, condition, arg_types[0], ""); + params[1] = LLVMBuildBitCast(builder, msg_string, arg_types[1], ""); + + /* check arg types */ + assert(LLVMTypeOf(params[0]) == arg_types[0]); + assert(LLVMTypeOf(params[1]) == arg_types[1]); + + r = LLVMBuildCall(builder, assert_func, params, 2, ""); + + return r; +} diff --git a/src/gallium/auxiliary/gallivm/lp_bld_assert.h b/src/gallium/auxiliary/gallivm/lp_bld_assert.h new file mode 100644 index 0000000000..ddd879dc2c --- /dev/null +++ b/src/gallium/auxiliary/gallivm/lp_bld_assert.h @@ -0,0 +1,41 @@ +/************************************************************************** + * + * Copyright 2010 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. + * + **************************************************************************/ + +#ifndef LP_BLD_ASSERT_H +#define LP_BLD_ASSERT_H + + +#include "lp_bld.h" + + +LLVMValueRef +lp_build_assert(LLVMBuilderRef builder, LLVMValueRef condition, + const char *msg); + + +#endif + diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.c b/src/gallium/auxiliary/gallivm/lp_bld_init.c index 69353dea09..ef0888079c 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_init.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c @@ -45,6 +45,8 @@ static const struct debug_named_value lp_bld_debug_flags[] = { { "nopt", GALLIVM_DEBUG_NO_OPT, NULL }, DEBUG_NAMED_VALUE_END }; + +DEBUG_GET_ONCE_FLAGS_OPTION(gallivm_debug, "GALLIVM_DEBUG", lp_bld_debug_flags, 0); #endif @@ -89,7 +91,7 @@ void lp_build_init(void) { #ifdef DEBUG - gallivm_debug = debug_get_flags_option("GALLIVM_DEBUG", lp_bld_debug_flags, 0 ); + gallivm_debug = debug_get_option_gallivm_debug(); #endif lp_set_target_options(); diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.h b/src/gallium/auxiliary/gallivm/lp_bld_init.h index a32ced9b4c..f26fdac466 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_init.h +++ b/src/gallium/auxiliary/gallivm/lp_bld_init.h @@ -44,5 +44,7 @@ extern LLVMPassManagerRef lp_build_pass; void lp_build_init(void); +extern void +lp_func_delete_body(LLVMValueRef func); #endif /* !LP_BLD_INIT_H */ diff --git a/src/gallium/auxiliary/gallivm/lp_bld_logic.c b/src/gallium/auxiliary/gallivm/lp_bld_logic.c index 39854e43b1..ab4ddb81c4 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_logic.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_logic.c @@ -363,9 +363,52 @@ lp_build_cmp(struct lp_build_context *bld, /** + * Return (mask & a) | (~mask & b); + */ +LLVMValueRef +lp_build_select_bitwise(struct lp_build_context *bld, + LLVMValueRef mask, + LLVMValueRef a, + LLVMValueRef b) +{ + struct lp_type type = bld->type; + LLVMValueRef res; + + if (a == b) { + return a; + } + + if(type.floating) { + LLVMTypeRef int_vec_type = lp_build_int_vec_type(type); + a = LLVMBuildBitCast(bld->builder, a, int_vec_type, ""); + b = LLVMBuildBitCast(bld->builder, b, int_vec_type, ""); + } + + a = LLVMBuildAnd(bld->builder, a, mask, ""); + + /* This often gets translated to PANDN, but sometimes the NOT is + * pre-computed and stored in another constant. The best strategy depends + * on available registers, so it is not a big deal -- hopefully LLVM does + * the right decision attending the rest of the program. + */ + b = LLVMBuildAnd(bld->builder, b, LLVMBuildNot(bld->builder, mask, ""), ""); + + res = LLVMBuildOr(bld->builder, a, b, ""); + + if(type.floating) { + LLVMTypeRef vec_type = lp_build_vec_type(type); + res = LLVMBuildBitCast(bld->builder, res, vec_type, ""); + } + + return res; +} + + +/** * Return mask ? a : b; * - * mask is a bitwise mask, composed of 0 or ~0 for each element. + * mask is a bitwise mask, composed of 0 or ~0 for each element. Any other value + * will yield unpredictable results. */ LLVMValueRef lp_build_select(struct lp_build_context *bld, @@ -424,27 +467,7 @@ lp_build_select(struct lp_build_context *bld, } } else { - if(type.floating) { - LLVMTypeRef int_vec_type = lp_build_int_vec_type(type); - a = LLVMBuildBitCast(bld->builder, a, int_vec_type, ""); - b = LLVMBuildBitCast(bld->builder, b, int_vec_type, ""); - } - - a = LLVMBuildAnd(bld->builder, a, mask, ""); - - /* This often gets translated to PANDN, but sometimes the NOT is - * pre-computed and stored in another constant. The best strategy depends - * on available registers, so it is not a big deal -- hopefully LLVM does - * the right decision attending the rest of the program. - */ - b = LLVMBuildAnd(bld->builder, b, LLVMBuildNot(bld->builder, mask, ""), ""); - - res = LLVMBuildOr(bld->builder, a, b, ""); - - if(type.floating) { - LLVMTypeRef vec_type = lp_build_vec_type(type); - res = LLVMBuildBitCast(bld->builder, res, vec_type, ""); - } + res = lp_build_select_bitwise(bld, mask, a, b); } return res; diff --git a/src/gallium/auxiliary/gallivm/lp_bld_logic.h b/src/gallium/auxiliary/gallivm/lp_bld_logic.h index 29f9fc3b20..4e7b4c9938 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_logic.h +++ b/src/gallium/auxiliary/gallivm/lp_bld_logic.h @@ -63,6 +63,11 @@ lp_build_cmp(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b); +LLVMValueRef +lp_build_select_bitwise(struct lp_build_context *bld, + LLVMValueRef mask, + LLVMValueRef a, + LLVMValueRef b); LLVMValueRef lp_build_select(struct lp_build_context *bld, diff --git a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp index 5a9488b5f7..6d5410d970 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp +++ b/src/gallium/auxiliary/gallivm/lp_bld_misc.cpp @@ -39,6 +39,7 @@ #include <llvm/Target/TargetOptions.h> #include <llvm/ExecutionEngine/ExecutionEngine.h> #include <llvm/ExecutionEngine/JITEventListener.h> +#include <llvm/Support/CommandLine.h> #include "pipe/p_config.h" #include "util/u_debug.h" @@ -141,4 +142,35 @@ lp_set_target_options(void) #if 0 llvm::UnsafeFPMath = true; #endif + +#if 0 + /* + * LLVM will generate MMX instructions for vectors <= 64 bits, leading to + * innefficient code, and in 32bit systems, to the corruption of the FPU + * stack given that it expects the user to generate the EMMS instructions. + * + * See also: + * - http://llvm.org/bugs/show_bug.cgi?id=3287 + * - http://l4.me.uk/post/2009/06/07/llvm-wrinkle-3-configuration-what-configuration/ + * + * XXX: Unfortunately this is not working. + */ + static boolean first = FALSE; + if (first) { + static const char* options[] = { + "prog", + "-disable-mmx" + }; + llvm::cl::ParseCommandLineOptions(2, const_cast<char**>(options)); + first = FALSE; + } +#endif +} + + +extern "C" void +lp_func_delete_body(LLVMValueRef FF) +{ + llvm::Function *func = llvm::unwrap<llvm::Function>(FF); + func->deleteBody(); } |