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    lp_build_context_init(&bld, builder, lp_float32_vec4_type());
  76
  77    LLVMSetFunctionCallConv(func, LLVMCCallConv);
  78
  79    LLVMPositionBuilderAtEnd(builder, block);
  80    ret = sin ? lp_build_sin(&bld, arg1) : lp_build_cos(&bld, arg1);
  81    LLVMBuildRet(builder, ret);
  82    LLVMDisposeBuilder(builder);
  83    return func;
  84 }
  85
  86 static void
  87 printv(char* string, v4sf value)
  88 {
  89    v4sf v = value;
  90    uint32_t  *p = (uint32_t *) &v;
  91    float *f = (float *)&v;
  92    printf("%s: %f(%x) %f(%x) %f(%x) %f(%x)\n", string,
  93            f[0], p[0], f[1], p[1], f[2], p[2], f[3], p[3]);
  94 }
  95
  96 PIPE_ALIGN_STACK
  97 static boolean
  98 test_sincos(unsigned verbose, FILE *fp)
  99 {
 100    LLVMModuleRef module = NULL;
 101    LLVMValueRef test_sin = NULL, test_cos = NULL;
 102    LLVMExecutionEngineRef engine = lp_build_engine;
 103    LLVMPassManagerRef pass = NULL;
 104    char *error = NULL;
 105    test_sincos_t sin_func;
 106    test_sincos_t cos_func;
 107    float unpacked[4];
 108    boolean success = TRUE;
 109
 110    module = LLVMModuleCreateWithName("test");
 111
 112    test_sin = add_sincos_test(module, TRUE);
 113    test_cos = add_sincos_test(module, FALSE);
 114
 115    if(LLVMVerifyModule(module, LLVMPrintMessageAction, &error)) {
 116       printf("LLVMVerifyModule: %s\n", error);
 117       LLVMDumpModule(module);
 118       abort();
 119    }
 120    LLVMDisposeMessage(error);
 121
 122 #if 0
 123    pass = LLVMCreatePassManager();
 124    LLVMAddTargetData(LLVMGetExecutionEngineTargetData(engine), pass);
 125    /* These are the passes currently listed in llvm-c/Transforms/Scalar.h,
 126     * but there are more on SVN. */
 127    LLVMAddConstantPropagationPass(pass);
 128    LLVMAddInstructionCombiningPass(pass);
 129    LLVMAddPromoteMemoryToRegisterPass(pass);
 130    LLVMAddGVNPass(pass);
 131    LLVMAddCFGSimplificationPass(pass);
 132    LLVMRunPassManager(pass, module);
 133 #else
 134    (void)pass;
 135 #endif
 136
 137    sin_func = (test_sincos_t) pointer_to_func(LLVMGetPointerToGlobal(engine, test_sin));
 138    cos_func = (test_sincos_t) pointer_to_func(LLVMGetPointerToGlobal(engine, test_cos));
 139
 140    memset(unpacked, 0, sizeof unpacked);
 141
 142
 143    // LLVMDumpModule(module);
 144    {
 145       v4sf src = {3.14159/4.0, -3.14159/4.0, 1.0, -1.0};
 146       printv("ref ",sin_ps(src));
 147       printv("llvm", sin_func(src));
 148       printv("ref ",cos_ps(src));
 149       printv("llvm",cos_func(src));
 150    }
 151
 152    LLVMFreeMachineCodeForFunction(engine, test_sin);
 153    LLVMFreeMachineCodeForFunction(engine, test_cos);
 154
 155    if(pass)
 156       LLVMDisposePassManager(pass);
 157
 158    return success;
 159 }
 160
 161 #else /* !PIPE_ARCH_SSE */
 162
 163 static boolean
 164 test_sincos(unsigned verbose, FILE *fp)
 165 {
 166    return TRUE;
 167 }
 168
 169 #endif /* !PIPE_ARCH_SSE */
 170
 171
 172 boolean
 173 test_all(unsigned verbose, FILE *fp)
 174 {
 175    boolean success = TRUE;
 176
 177    test_sincos(verbose, fp);
 178
 179    return success;
 180 }
 181
 182
 183 boolean
 184 test_some(unsigned verbose, FILE *fp, unsigned long n)
 185 {
 186    return test_all(verbose, fp);
 187 }
 188
 189 boolean
 190 test_single(unsigned verbose, FILE *fp)
 191 {
 192    printf("no test_single()");
 193    return TRUE;
 194 }