From: David Schleef <ds@schleef.org>
Date: Wed, 30 Sep 2009 03:15:34 +0000 (-0700)
Subject: Move 32-bit float ops to core library
X-Git-Tag: merge-base~31
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=22bdbfc7aeddd66dc8e719f3a019387ddbf33b4e;p=platform%2Fupstream%2Forc.git

Move 32-bit float ops to core library
---

diff --git a/orc-test/orcarray.c b/orc-test/orcarray.c
index ba100ec..2c20f4c 100644
--- a/orc-test/orcarray.c
+++ b/orc-test/orcarray.c
@@ -9,6 +9,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
+#include <math.h>
 
 #define EXTEND_ROWS 16
 #define EXTEND_STRIDE 256
@@ -57,11 +58,29 @@ orc_array_set_random (OrcArray *array, OrcRandom *context)
 
 
 int
-orc_array_compare (OrcArray *array1, OrcArray *array2)
+orc_array_compare (OrcArray *array1, OrcArray *array2, int flags)
 {
-  if (memcmp (array1->alloc_data, array2->alloc_data,
-        array1->alloc_len) == 0) {
+  if (flags & ORC_TEST_FLAGS_FLOAT && array1->element_size == 4) {
+    int j;
+    for(j=0;j<array1->m;j++){
+      float *a, *b;
+      int i;
+
+      a = ORC_PTR_OFFSET (array1->data, j*array1->stride);
+      b = ORC_PTR_OFFSET (array2->data, j*array2->stride);
+
+      for (i=0;i<array1->n;i++){
+        if (!((isnan(a[i]) && isnan(b[i])) || a[i] == b[i])) {
+          return FALSE;
+        }
+      }
+    }
     return TRUE;
+  } else {
+    if (memcmp (array1->alloc_data, array2->alloc_data,
+          array1->alloc_len) == 0) {
+      return TRUE;
+    }
   }
 
   return FALSE;
diff --git a/orc-test/orcarray.h b/orc-test/orcarray.h
index b8f323a..d8c89cb 100644
--- a/orc-test/orcarray.h
+++ b/orc-test/orcarray.h
@@ -24,7 +24,7 @@ void orc_array_free (OrcArray *array);
 void orc_array_set_pattern (OrcArray *array, int value);
 void orc_array_set_random (OrcArray *array, OrcRandom *context);
 
-int orc_array_compare (OrcArray *array1, OrcArray *array2);
+int orc_array_compare (OrcArray *array1, OrcArray *array2, int flags);
 int orc_array_check_out_of_bounds (OrcArray *array);
 
 #endif
diff --git a/orc-test/orcrandom.c b/orc-test/orcrandom.c
index 3b6d5fb..7ada96d 100644
--- a/orc-test/orcrandom.c
+++ b/orc-test/orcrandom.c
@@ -29,6 +29,16 @@ orc_random_bits (OrcRandom *context, void *data, int n_bytes)
   }
 }
 
+void
+orc_random_floats (OrcRandom *context, float *data, int n)
+{
+  int i;
+  for(i=0;i<n;i++){
+    context->x = 1103515245*context->x + 12345;
+    data[i] = (double)(context->x>>16) / 32768.0 - 1.0;
+  }
+}
+
 unsigned int
 orc_random (OrcRandom *context)
 {
diff --git a/orc-test/orcrandom.h b/orc-test/orcrandom.h
index ce7be74..838d267 100644
--- a/orc-test/orcrandom.h
+++ b/orc-test/orcrandom.h
@@ -13,6 +13,7 @@ struct _OrcRandom {
 
 void orc_random_init (OrcRandom *context, int seed);
 void orc_random_bits (OrcRandom *context, void *data, int n_bytes);
+void orc_random_floats (OrcRandom *context, float *data, int n);
 unsigned int orc_random (OrcRandom *context);
 
 ORC_END_DECLS
diff --git a/orc-test/orctest.c b/orc-test/orctest.c
index 7f07990..8eba583 100644
--- a/orc-test/orctest.c
+++ b/orc-test/orctest.c
@@ -11,6 +11,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <math.h>
 
 
 OrcRandom rand_context;
@@ -244,24 +245,25 @@ print_array_val_hex (void *array, int size, int i)
   }
 }
 
-float
-print_array_val_float (void *array, int size, int i)
+int
+print_array_val_float (OrcArray *array, int i, int j)
 {
-  switch (size) {
+  void *ptr = ORC_PTR_OFFSET (array->data,
+      i*array->element_size + j*array->stride);
+
+  switch (array->element_size) {
     case 4:
-      {
-        float *a = array;
-        printf(" %g", a[i]);
-        return a[i];
+      if (isnan(*(float *)ptr)) {
+        printf(" nan %08x", *(uint32_t *)ptr);
+        /* This is to get around signaling/non-signaling nans in the output */
+        return (*(uint32_t *)ptr) & 0xffbfffff;
+      } else {
+        printf(" %12.5g", *(float *)ptr);
+        return *(int32_t *)ptr;
       }
-      break;
     case 8:
-      {
-        double *a = array;
-        printf(" %g", a[i]);
-        return a[i];
-      }
-      break;
+      printf(" %12.5g", *(double *)ptr);
+      return *(int64_t *)ptr;
     default:
       printf(" ERROR");
       return -1;
@@ -269,7 +271,7 @@ print_array_val_float (void *array, int size, int i)
 }
 
 static OrcTestResult orc_test_compare_output_full (OrcProgram *program,
-    int backup);
+    int flags);
 
 OrcTestResult
 orc_test_compare_output (OrcProgram *program)
@@ -280,12 +282,12 @@ orc_test_compare_output (OrcProgram *program)
 OrcTestResult
 orc_test_compare_output_backup (OrcProgram *program)
 {
-  return orc_test_compare_output_full (program, 1);
+  return orc_test_compare_output_full (program, ORC_TEST_FLAGS_BACKUP);
 }
 
 
 OrcTestResult
-orc_test_compare_output_full (OrcProgram *program, int backup)
+orc_test_compare_output_full (OrcProgram *program, int flags)
 {
   OrcExecutor *ex;
   int n = 64 + (orc_random(&rand_context)&0xf);
@@ -304,7 +306,8 @@ orc_test_compare_output_full (OrcProgram *program, int backup)
 
   ORC_DEBUG ("got here");
 
-  if (!backup) {
+flags |= ORC_TEST_FLAGS_FLOAT;
+  if (!(flags & ORC_TEST_FLAGS_BACKUP)) {
     OrcTarget *target;
     unsigned int flags;
 
@@ -384,7 +387,7 @@ orc_test_compare_output_full (OrcProgram *program, int backup)
 
   for(k=0;k<ORC_N_VARIABLES;k++){
     if (program->vars[k].vartype == ORC_VAR_TYPE_DEST) {
-      if (!orc_array_compare (dest_exec[k], dest_emul[k])) {
+      if (!orc_array_compare (dest_exec[k], dest_emul[k], flags)) {
         for(j=0;j<m;j++){
           for(i=0;i<n;i++){
             int a,b;
@@ -396,13 +399,22 @@ orc_test_compare_output_full (OrcProgram *program, int backup)
               if (program->vars[l].name == NULL) continue;
               if (program->vars[l].vartype == ORC_VAR_TYPE_SRC &&
                   program->vars[l].size > 0) {
-                print_array_val_signed (src[l-ORC_VAR_S1], i, j);
+                if (flags & ORC_TEST_FLAGS_FLOAT) {
+                  print_array_val_float (src[l-ORC_VAR_S1], i, j);
+                } else {
+                  print_array_val_signed (src[l-ORC_VAR_S1], i, j);
+                }
               }
             }
 
             printf(" ->");
-            a = print_array_val_signed (dest_emul[k], i, j);
-            b = print_array_val_signed (dest_exec[k], i, j);
+            if (flags & ORC_TEST_FLAGS_FLOAT) {
+              a = print_array_val_float (dest_emul[k], i, j);
+              b = print_array_val_float (dest_exec[k], i, j);
+            } else {
+              a = print_array_val_signed (dest_emul[k], i, j);
+              b = print_array_val_signed (dest_exec[k], i, j);
+            }
 
             if (a != b) {
               printf(" *");
@@ -433,7 +445,11 @@ orc_test_compare_output_full (OrcProgram *program, int backup)
             if (program->vars[k].name == NULL) continue;
             if (program->vars[k].vartype == ORC_VAR_TYPE_SRC &&
                 program->vars[k].size > 0) {
-              print_array_val_signed (src[k-ORC_VAR_S1], i, j);
+              if (flags & ORC_TEST_FLAGS_FLOAT) {
+                print_array_val_float (src[k-ORC_VAR_S1], i, j);
+              } else {
+                print_array_val_signed (src[k-ORC_VAR_S1], i, j);
+              }
             }
           }
 
diff --git a/orc-test/orctest.h b/orc-test/orctest.h
index f0c1409..7f087ab 100644
--- a/orc-test/orctest.h
+++ b/orc-test/orctest.h
@@ -13,6 +13,9 @@ typedef enum {
   ORC_TEST_OK = 2
 } OrcTestResult;
 
+#define ORC_TEST_FLAGS_BACKUP (1<<0)
+#define ORC_TEST_FLAGS_FLOAT (1<<1)
+
 void orc_test_init (void);
 OrcTestResult orc_test_gcc_compile (OrcProgram *p);
 void orc_test_random_bits (void *data, int n_bytes);
diff --git a/orc/orcopcodes.c b/orc/orcopcodes.c
index 32cb7fb..7d8dbd1 100644
--- a/orc/orcopcodes.c
+++ b/orc/orcopcodes.c
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <math.h>
 
 #include <orc/orcprogram.h>
 #include <orc/orcdebug.h>
@@ -554,6 +555,88 @@ accsadubl (OrcOpcodeExecutor *ex, void *user)
       (int)((uint8_t)ex->src_values[1]));
 }
 
+/* float ops */
+
+static float
+ORC_FLOAT_READ(void *addr)
+{
+  union {
+    float f;
+    unsigned int i;
+  } x;
+  x.i = *(unsigned int *)(addr);
+  return x.f;
+}
+
+static void
+ORC_FLOAT_WRITE(void *addr, float value)
+{
+  union {
+    float f;
+    unsigned int i;
+  } x;
+  x.f = value;
+  *(unsigned int *)(addr) = x.i;
+}
+
+#if 0
+/* Oh noes!  Aliasing rules! */
+#define ORC_FLOAT_READ(addr) (*(float *)(addr))
+#define ORC_FLOAT_WRITE(addr,value) do{ (*(float *)(addr)) = (value); }while(0
+#endif
+
+#define UNARY_F(name,code) \
+static void \
+name (OrcOpcodeExecutor *ex, void *user) \
+{ \
+  float a = ORC_FLOAT_READ(&ex->src_values[0]); \
+  ORC_FLOAT_WRITE(&ex->dest_values[0], code ); \
+}
+
+#define BINARY_F(name,code) \
+static void \
+name (OrcOpcodeExecutor *ex, void *user) \
+{ \
+  void *pa = &ex->src_values[0]; \
+  void *pb = &ex->src_values[1]; \
+  float a = ORC_FLOAT_READ(pa); \
+  float b = ORC_FLOAT_READ(pb); \
+  ORC_FLOAT_WRITE(&ex->dest_values[0], code ); \
+}
+
+#define BINARY_FL(name,code) \
+static void \
+name (OrcOpcodeExecutor *ex, void *user) \
+{ \
+  float a = ORC_FLOAT_READ(&ex->src_values[0]); \
+  float b = ORC_FLOAT_READ(&ex->src_values[1]); \
+  ex->dest_values[0] = code ; \
+}
+
+BINARY_F(addf, a + b)
+BINARY_F(subf, a - b)
+BINARY_F(mulf, a * b)
+BINARY_F(divf, a / b)
+UNARY_F(orc_sqrtf, sqrt(a) )
+BINARY_F(maxf, (a>b) ? a : b)
+BINARY_F(minf, (a<b) ? a : b)
+
+BINARY_FL(cmpeqf, (a == b) ? (~0) : 0)
+BINARY_FL(cmpltf, (a < b) ? (~0) : 0)
+BINARY_FL(cmplef, (a <= b) ? (~0) : 0)
+
+static void
+convfl (OrcOpcodeExecutor *ex, void *user)
+{
+  ex->dest_values[0] = rintf(ORC_FLOAT_READ(&ex->src_values[0]));
+}
+
+static void
+convlf (OrcOpcodeExecutor *ex, void *user)
+{
+  ORC_FLOAT_WRITE(&ex->dest_values[0], ex->src_values[0]);
+}
+
 
 static OrcStaticOpcode opcodes[] = {
 
@@ -694,6 +777,20 @@ static OrcStaticOpcode opcodes[] = {
   { "mergewl", mergewl, NULL, 0, { 4 }, { 2, 2 } },
   { "mergebw", mergebw, NULL, 0, { 2 }, { 1, 1 } },
 
+  /* float ops */
+  { "addf", addf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4, 4 } },
+  { "subf", subf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4, 4 } },
+  { "mulf", mulf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4, 4 } },
+  { "divf", divf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4, 4 } },
+  { "sqrtf", orc_sqrtf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4 } },
+  { "maxf", maxf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4, 4 } },
+  { "minf", minf, NULL, ORC_STATIC_OPCODE_FLOAT, { 4 }, { 4, 4 } },
+  { "cmpeqf", cmpeqf, NULL, ORC_STATIC_OPCODE_FLOAT_SRC, { 4 }, { 4, 4 } },
+  { "cmpltf", cmpltf, NULL, ORC_STATIC_OPCODE_FLOAT_SRC, { 4 }, { 4, 4 } },
+  { "cmplef", cmplef, NULL, ORC_STATIC_OPCODE_FLOAT_SRC, { 4 }, { 4, 4 } },
+  { "convfl", convfl, NULL, ORC_STATIC_OPCODE_FLOAT_SRC, { 4 }, { 4 } },
+  { "convlf", convlf, NULL, ORC_STATIC_OPCODE_FLOAT_DEST, { 4 }, { 4 } },
+
   { "" }
 };
 
diff --git a/orc/orcprogram.h b/orc/orcprogram.h
index 1f50fcb..feee65a 100644
--- a/orc/orcprogram.h
+++ b/orc/orcprogram.h
@@ -233,7 +233,11 @@ struct _OrcOpcodeSet {
   OrcStaticOpcode *opcodes;
 };
 
-#define ORC_STATIC_OPCODE_ACCUMULATOR 1
+#define ORC_STATIC_OPCODE_ACCUMULATOR (1<<0)
+#define ORC_STATIC_OPCODE_FLOAT_SRC (1<<1)
+#define ORC_STATIC_OPCODE_FLOAT_DEST (1<<2)
+#define ORC_STATIC_OPCODE_FLOAT (ORC_STATIC_OPCODE_FLOAT_SRC|ORC_STATIC_OPCODE_FLOAT_DEST)
+
 
 struct _OrcStaticOpcode {
   char name[16];
diff --git a/orc/orcrules-sse.c b/orc/orcrules-sse.c
index 1857272..c7b0cd7 100644
--- a/orc/orcrules-sse.c
+++ b/orc/orcrules-sse.c
@@ -863,6 +863,77 @@ sse_rule_minul_slow (OrcCompiler *p, void *user, OrcInstruction *insn)
   orc_sse_emit_pxor(p, tmp, dest);
 }
 
+/* float ops */
+
+#define UNARY_F(opcode,insn_name,code) \
+static void \
+sse_rule_ ## opcode (OrcCompiler *p, void *user, OrcInstruction *insn) \
+{ \
+  orc_sse_emit_0f (p, insn_name, code, \
+      p->vars[insn->src_args[0]].alloc, \
+      p->vars[insn->dest_args[0]].alloc); \
+}
+
+#define BINARY_F(opcode,insn_name,code) \
+static void \
+sse_rule_ ## opcode (OrcCompiler *p, void *user, OrcInstruction *insn) \
+{ \
+  orc_sse_emit_0f (p, insn_name, code, \
+      p->vars[insn->src_args[1]].alloc, \
+      p->vars[insn->dest_args[0]].alloc); \
+}
+
+BINARY_F(addf, "addps", 0x58)
+BINARY_F(subf, "subps", 0x5c)
+BINARY_F(mulf, "mulps", 0x59)
+BINARY_F(divf, "divps", 0x5e)
+BINARY_F(maxf, "maxps", 0x5f)
+BINARY_F(minf, "minps", 0x5d)
+UNARY_F(sqrtf, "sqrtps", 0x51)
+
+static void
+sse_rule_cmpeqf (OrcCompiler *p, void *user, OrcInstruction *insn)
+{
+  orc_sse_emit_0f (p, "cmpeqps", 0xc2,
+      p->vars[insn->src_args[1]].alloc,
+      p->vars[insn->dest_args[0]].alloc);
+  *p->codeptr++ = 0x00;
+}
+
+static void
+sse_rule_cmpltf (OrcCompiler *p, void *user, OrcInstruction *insn)
+{
+  orc_sse_emit_0f (p, "cmpltps", 0xc2,
+      p->vars[insn->src_args[1]].alloc,
+      p->vars[insn->dest_args[0]].alloc);
+  *p->codeptr++ = 0x01;
+}
+
+static void
+sse_rule_cmplef (OrcCompiler *p, void *user, OrcInstruction *insn)
+{
+  orc_sse_emit_0f (p, "cmpleps", 0xc2,
+      p->vars[insn->src_args[1]].alloc,
+      p->vars[insn->dest_args[0]].alloc);
+  *p->codeptr++ = 0x02;
+}
+
+static void
+sse_rule_convfl (OrcCompiler *p, void *user, OrcInstruction *insn)
+{
+  orc_sse_emit_660f (p, "cvtps2dq", 0x5b,
+      p->vars[insn->src_args[0]].alloc,
+      p->vars[insn->dest_args[0]].alloc);
+}
+
+static void
+sse_rule_convlf (OrcCompiler *p, void *user, OrcInstruction *insn)
+{
+  orc_sse_emit_0f (p, "cvtdq2ps", 0x5b,
+      p->vars[insn->src_args[0]].alloc,
+      p->vars[insn->dest_args[0]].alloc);
+}
+
 
 void
 orc_compiler_sse_register_rules (OrcTarget *target)
@@ -956,6 +1027,19 @@ orc_compiler_sse_register_rules (OrcTarget *target)
   orc_rule_register (rule_set, "accl", sse_rule_accl, NULL);
   orc_rule_register (rule_set, "accsadubl", sse_rule_accsadubl, NULL);
 
+  orc_rule_register (rule_set, "addf", sse_rule_addf, NULL);
+  orc_rule_register (rule_set, "subf", sse_rule_subf, NULL);
+  orc_rule_register (rule_set, "mulf", sse_rule_mulf, NULL);
+  orc_rule_register (rule_set, "divf", sse_rule_divf, NULL);
+  orc_rule_register (rule_set, "minf", sse_rule_minf, NULL);
+  orc_rule_register (rule_set, "maxf", sse_rule_maxf, NULL);
+  orc_rule_register (rule_set, "sqrtf", sse_rule_sqrtf, NULL);
+  orc_rule_register (rule_set, "cmpeqf", sse_rule_cmpeqf, NULL);
+  orc_rule_register (rule_set, "cmpltf", sse_rule_cmpltf, NULL);
+  orc_rule_register (rule_set, "cmplef", sse_rule_cmplef, NULL);
+  orc_rule_register (rule_set, "convfl", sse_rule_convfl, NULL);
+  orc_rule_register (rule_set, "convlf", sse_rule_convlf, NULL);
+
   /* slow rules */
   orc_rule_register (rule_set, "maxuw", sse_rule_maxuw_slow, NULL);
   orc_rule_register (rule_set, "minuw", sse_rule_minuw_slow, NULL);