src/gallium/drivers/llvmpipe/lp_test_printf.c

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   3  * Copyright 2010 VMware, Inc.
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  13  *
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  16  * of the Software.
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  26  **************************************************************************/
  27
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31
  32 #include "gallivm/lp_bld.h"
  33 #include "gallivm/lp_bld_printf.h"
  34
  35 #include <llvm-c/Analysis.h>
  36 #include <llvm-c/ExecutionEngine.h>
  37 #include <llvm-c/Target.h>
  38 #include <llvm-c/Transforms/Scalar.h>
  39
  40 #include "lp_test.h"
  41
  42
  43 struct printf_test_case {
  44 };
  45
  46 void
  47 write_tsv_header(FILE *fp)
  48 {
  49    fprintf(fp,
  50            "result\t"
  51            "format\n");
  52
  53    fflush(fp);
  54 }
  55
  56
  57
  58 typedef void (*test_printf_t)(int i);
  59
  60 static LLVMValueRef
  61 add_printf_test(LLVMModuleRef module)
  62 {
  63    LLVMTypeRef args[1] = { LLVMIntType(32) };
  64    LLVMValueRef func = LLVMAddFunction(module, "test_printf", LLVMFunctionType(LLVMVoidType(), args, 1, 0));
  65    LLVMBuilderRef builder = LLVMCreateBuilder();
  66    LLVMBasicBlockRef block = LLVMAppendBasicBlock(func, "entry");
  67
  68    LLVMSetFunctionCallConv(func, LLVMCCallConv);
  69
  70    LLVMPositionBuilderAtEnd(builder, block);
  71    lp_build_printf(builder, "hello, world\n");
  72    lp_build_printf(builder, "print 5 6: %d %d\n", LLVMConstInt(LLVMInt32Type(), 5, 0),
  73                                 LLVMConstInt(LLVMInt32Type(), 6, 0));
  74    LLVMBuildRetVoid(builder);
  75    LLVMDisposeBuilder(builder);
  76    return func;
  77 }
  78
  79
  80 PIPE_ALIGN_STACK
  81 static boolean
  82 test_printf(unsigned verbose, FILE *fp, const struct printf_test_case *testcase)
  83 {
  84    LLVMModuleRef module = NULL;
  85    LLVMValueRef test = NULL;
  86    LLVMExecutionEngineRef engine = NULL;
  87    LLVMModuleProviderRef provider = NULL;
  88    LLVMPassManagerRef pass = NULL;
  89    char *error = NULL;
  90    test_printf_t test_printf;
  91    float unpacked[4];
  92    unsigned packed;
  93    boolean success = TRUE;
  94
  95    module = LLVMModuleCreateWithName("test");
  96
  97    test = add_printf_test(module);
  98
  99    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 100       LLVMDumpModule(module);
 101       abort();
 102    }
 103    LLVMDisposeMessage(error);
 104
 105    provider = LLVMCreateModuleProviderForExistingModule(module);
 106    if (LLVMCreateJITCompiler(&engine, provider, 1, &error)) {
 107       fprintf(stderr, "%s\n", error);
 108       LLVMDisposeMessage(error);
 109       abort();
 110    }
 111
 112 #if 0
 113    pass = LLVMCreatePassManager();
 114    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 115    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 116     * but there are more on SVN. */
 117    LLVMAddConstantPropagationPass(pass);
 118    LLVMAddInstructionCombiningPass(pass);
 119    LLVMAddPromoteMemoryToRegisterPass(pass);
 120    LLVMAddGVNPass(pass);
 121    LLVMAddCFGSimplificationPass(pass);
 122    LLVMRunPassManager(pass, module);
 123 #else
 124    (void)pass;
 125 #endif
 126
 127    test_printf = (test_printf_t)LLVMGetPointerToGlobal(engine, test);
 128
 129    memset(unpacked, 0, sizeof unpacked);
 130    packed = 0;
 131
 132
 133    // LLVMDumpModule(module);
 134
 135    test_printf(0);
 136
 137    LLVMFreeMachineCodeForFunction(engine, test);
 138
 139    LLVMDisposeExecutionEngine(engine);
 140    if(pass)
 141       LLVMDisposePassManager(pass);
 142
 143    return success;
 144 }
 145
 146
 147 boolean
 148 test_all(unsigned verbose, FILE *fp)
 149 {
 150    bool success = TRUE;
 151
 152    test_printf(verbose, fp, NULL);
 153
 154    return success;
 155 }
 156
 157
 158 boolean
 159 test_some(unsigned verbose, FILE *fp, unsigned long n)
 160 {
 161    return test_all(verbose, fp);
 162 }