src/gallium/drivers/llvmpipe/lp_test_sincos.c

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  16  * of the Software.
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  27
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31
  32 #include "gallivm/lp_bld.h"
  33 #include "gallivm/lp_bld_init.h"
  34 #include "gallivm/lp_bld_arit.h"
  35 #include "util/u_pointer.h"
  36
  37 #include <llvm-c/Analysis.h>
  38 #include <llvm-c/ExecutionEngine.h>
  39 #include <llvm-c/Target.h>
  40 #include <llvm-c/Transforms/Scalar.h>
  41
  42 #include "lp_test.h"
  43
  44
  45 void
  46 write_tsv_header(FILE *fp)
  47 {
  48    fprintf(fp,
  49            "result\t"
  50            "format\n");
  51
  52    fflush(fp);
  53 }
  54
  55
  56 #ifdef PIPE_ARCH_SSE
  57
  58 #define USE_SSE2
  59 #include "sse_mathfun.h"
  60
  61 typedef __m128 (*test_sincos_t)(__m128);
  62
  63 static LLVMValueRef
  64 add_sincos_test(LLVMModuleRef module, boolean sin)
  65 {
  66    LLVMTypeRef v4sf = LLVMVectorType(LLVMFloatType(), 4);
  67    LLVMTypeRef args[1] = { v4sf };
  68    LLVMValueRef func = LLVMAddFunction(module, "sincos", LLVMFunctionType(v4sf, args, 1, 0));
  69    LLVMValueRef arg1 = LLVMGetParam(func, 0);
  70    LLVMBuilderRef builder = LLVMCreateBuilder();
  71    LLVMBasicBlockRef block = LLVMAppendBasicBlock(func, "entry");
  72    LLVMValueRef ret;
  73    struct lp_build_context bld;
  74
  75    bld.builder = builder;
  76    bld.type.floating = 1;
  77    bld.type.width = 32;
  78    bld.type.length = 4;
  79
  80    LLVMSetFunctionCallConv(func, LLVMCCallConv);
  81
  82    LLVMPositionBuilderAtEnd(builder, block);
  83    ret = sin ? lp_build_sin(&bld, arg1) : lp_build_cos(&bld, arg1);
  84    LLVMBuildRet(builder, ret);
  85    LLVMDisposeBuilder(builder);
  86    return func;
  87 }
  88
  89 static void
  90 printv(char* string, v4sf value)
  91 {
  92    v4sf v = value;
  93    uint32_t  *p = (uint32_t *) &v;
  94    float *f = (float *)&v;
  95    printf("%s: %f(%x) %f(%x) %f(%x) %f(%x)\n", string,
  96            f[0], p[0], f[1], p[1], f[2], p[2], f[3], p[3]);
  97 }
  98
  99 PIPE_ALIGN_STACK
 100 static boolean
 101 test_sincos(unsigned verbose, FILE *fp)
 102 {
 103    LLVMModuleRef module = NULL;
 104    LLVMValueRef test_sin = NULL, test_cos = NULL;
 105    LLVMExecutionEngineRef engine = lp_build_engine;
 106    LLVMPassManagerRef pass = NULL;
 107    char *error = NULL;
 108    test_sincos_t sin_func;
 109    test_sincos_t cos_func;
 110    float unpacked[4];
 111    boolean success = TRUE;
 112
 113    module = LLVMModuleCreateWithName("test");
 114
 115    test_sin = add_sincos_test(module, TRUE);
 116    test_cos = add_sincos_test(module, FALSE);
 117
 118    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 119       printf("LLVMVerifyModule: %s\n", error);
 120       LLVMDumpModule(module);
 121       abort();
 122    }
 123    LLVMDisposeMessage(error);
 124
 125 #if 0
 126    pass = LLVMCreatePassManager();
 127    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 128    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 129     * but there are more on SVN. */
 130    LLVMAddConstantPropagationPass(pass);
 131    LLVMAddInstructionCombiningPass(pass);
 132    LLVMAddPromoteMemoryToRegisterPass(pass);
 133    LLVMAddGVNPass(pass);
 134    LLVMAddCFGSimplificationPass(pass);
 135    LLVMRunPassManager(pass, module);
 136 #else
 137    (void)pass;
 138 #endif
 139
 140    sin_func = (test_sincos_t) pointer_to_func(LLVMGetPointerToGlobal(engine, test_sin));
 141    cos_func = (test_sincos_t) pointer_to_func(LLVMGetPointerToGlobal(engine, test_cos));
 142
 143    memset(unpacked, 0, sizeof unpacked);
 144
 145
 146    // LLVMDumpModule(module);
 147    {
 148       v4sf src = {3.14159/4.0, -3.14159/4.0, 1.0, -1.0};
 149       printv("ref ",sin_ps(src));
 150       printv("llvm", sin_func(src));
 151       printv("ref ",cos_ps(src));
 152       printv("llvm",cos_func(src));
 153    }
 154
 155    LLVMFreeMachineCodeForFunction(engine, test_sin);
 156    LLVMFreeMachineCodeForFunction(engine, test_cos);
 157
 158    if(pass)
 159       LLVMDisposePassManager(pass);
 160
 161    return success;
 162 }
 163
 164 #else /* !PIPE_ARCH_SSE */
 165
 166 static boolean
 167 test_sincos(unsigned verbose, FILE *fp)
 168 {
 169    return TRUE;
 170 }
 171
 172 #endif /* !PIPE_ARCH_SSE */
 173
 174
 175 boolean
 176 test_all(unsigned verbose, FILE *fp)
 177 {
 178    boolean success = TRUE;
 179
 180    test_sincos(verbose, fp);
 181
 182    return success;
 183 }
 184
 185
 186 boolean
 187 test_some(unsigned verbose, FILE *fp, unsigned long n)
 188 {
 189    return test_all(verbose, fp);
 190 }
 191
 192 boolean
 193 test_single(unsigned verbose, FILE *fp)
 194 {
 195    printf("no test_single()");
 196    return TRUE;
 197 }