src/gallium/drivers/llvmpipe/lp_test_printf.c

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   3  * Copyright 2010 VMware, Inc.
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  13  *
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
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  25  *
  26  **************************************************************************/
  27
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31
  32 #include "util/u_pointer.h"
  33 #include "gallivm/lp_bld.h"
  34 #include "gallivm/lp_bld_printf.h"
  35
  36 #include <llvm-c/Analysis.h>
  37 #include <llvm-c/ExecutionEngine.h>
  38 #include <llvm-c/Target.h>
  39 #include <llvm-c/Transforms/Scalar.h>
  40
  41 #include "lp_test.h"
  42
  43
  44 struct printf_test_case {
  45    int foo;
  46 };
  47
  48 void
  49 write_tsv_header(FILE *fp)
  50 {
  51    fprintf(fp,
  52            "result\t"
  53            "format\n");
  54
  55    fflush(fp);
  56 }
  57
  58
  59
  60 typedef void (*test_printf_t)(int i);
  61
  62
  63 static LLVMValueRef
  64 add_printf_test(LLVMModuleRef module)
  65 {
  66    LLVMTypeRef args[1] = { LLVMIntType(32) };
  67    LLVMValueRef func = LLVMAddFunction(module, "test_printf", LLVMFunctionType(LLVMVoidType(), args, 1, 0));
  68    LLVMBuilderRef builder = LLVMCreateBuilder();
  69    LLVMBasicBlockRef block = LLVMAppendBasicBlock(func, "entry");
  70
  71    LLVMSetFunctionCallConv(func, LLVMCCallConv);
  72
  73    LLVMPositionBuilderAtEnd(builder, block);
  74    lp_build_printf(builder, "hello, world\n");
  75    lp_build_printf(builder, "print 5 6: %d %d\n", LLVMConstInt(LLVMInt32Type(), 5, 0),
  76                                 LLVMConstInt(LLVMInt32Type(), 6, 0));
  77    LLVMBuildRetVoid(builder);
  78    LLVMDisposeBuilder(builder);
  79    return func;
  80 }
  81
  82
  83 PIPE_ALIGN_STACK
  84 static boolean
  85 test_printf(unsigned verbose, FILE *fp, const struct printf_test_case *testcase)
  86 {
  87    LLVMModuleRef module = NULL;
  88    LLVMValueRef test = NULL;
  89    LLVMExecutionEngineRef engine = NULL;
  90    LLVMModuleProviderRef provider = NULL;
  91    LLVMPassManagerRef pass = NULL;
  92    char *error = NULL;
  93    test_printf_t test_printf;
  94    float unpacked[4];
  95    unsigned packed;
  96    boolean success = TRUE;
  97    void *code;
  98
  99    module = LLVMModuleCreateWithName("test");
 100
 101    test = add_printf_test(module);
 102
 103    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 104       LLVMDumpModule(module);
 105       abort();
 106    }
 107    LLVMDisposeMessage(error);
 108
 109    provider = LLVMCreateModuleProviderForExistingModule(module);
 110    if (LLVMCreateJITCompiler(&engine, provider, 1, &error)) {
 111       fprintf(stderr, "%s\n", error);
 112       LLVMDisposeMessage(error);
 113       abort();
 114    }
 115
 116 #if 0
 117    pass = LLVMCreatePassManager();
 118    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 119    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 120     * but there are more on SVN. */
 121    LLVMAddConstantPropagationPass(pass);
 122    LLVMAddInstructionCombiningPass(pass);
 123    LLVMAddPromoteMemoryToRegisterPass(pass);
 124    LLVMAddGVNPass(pass);
 125    LLVMAddCFGSimplificationPass(pass);
 126    LLVMRunPassManager(pass, module);
 127 #else
 128    (void)pass;
 129 #endif
 130
 131    code = LLVMGetPointerToGlobal(engine, test);
 132    test_printf = (test_printf_t)pointer_to_func(code);
 133
 134    memset(unpacked, 0, sizeof unpacked);
 135    packed = 0;
 136
 137
 138    // LLVMDumpModule(module);
 139
 140    test_printf(0);
 141
 142    LLVMFreeMachineCodeForFunction(engine, test);
 143
 144    LLVMDisposeExecutionEngine(engine);
 145    if(pass)
 146       LLVMDisposePassManager(pass);
 147
 148    return success;
 149 }
 150
 151
 152 boolean
 153 test_all(unsigned verbose, FILE *fp)
 154 {
 155    boolean success = TRUE;
 156
 157    test_printf(verbose, fp, NULL);
 158
 159    return success;
 160 }
 161
 162
 163 boolean
 164 test_some(unsigned verbose, FILE *fp, unsigned long n)
 165 {
 166    return test_all(verbose, fp);
 167 }
 168
 169
 170 boolean
 171 test_single(unsigned verbose, FILE *fp)
 172 {
 173    printf("no test_single()");
 174    return TRUE;
 175 }