s390x: fix flat file load on 32 bit systems

[qemu.git] / fpu / softfloat-macros.h

diff --git a/fpu/softfloat-macros.h b/fpu/softfloat-macros.h
index 3128e60cbf5a5901470fcf38e34f9f97fd658709..9b095456c5b148acfc14895faa129ac90aa0b1a6 100644 (file)
--- a/fpu/softfloat-macros.h
+++ b/fpu/softfloat-macros.h
@@ -35,6 +35,17 @@ these four paragraphs for those parts of this code that are retained.
 
 =============================================================================*/
 
+/*----------------------------------------------------------------------------
+| This macro tests for minimum version of the GNU C compiler.
+*----------------------------------------------------------------------------*/
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+# define SOFTFLOAT_GNUC_PREREQ(maj, min) \
+         ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+#else
+# define SOFTFLOAT_GNUC_PREREQ(maj, min) 0
+#endif
+
+
 /*----------------------------------------------------------------------------
 | Shifts `a' right by the number of bits given in `count'.  If any nonzero
 | bits are shifted off, they are ``jammed'' into the least significant bit of
@@ -44,7 +55,7 @@ these four paragraphs for those parts of this code that are retained.
 | The result is stored in the location pointed to by `zPtr'.
 *----------------------------------------------------------------------------*/
 
-INLINE void shift32RightJamming( uint32_t a, int16 count, uint32_t *zPtr )
+INLINE void shift32RightJamming(uint32_t a, int_fast16_t count, uint32_t *zPtr)
 {
     uint32_t z;
 
@@ -70,7 +81,7 @@ INLINE void shift32RightJamming( uint32_t a, int16 count, uint32_t *zPtr )
 | The result is stored in the location pointed to by `zPtr'.
 *----------------------------------------------------------------------------*/
 
-INLINE void shift64RightJamming( uint64_t a, int16 count, uint64_t *zPtr )
+INLINE void shift64RightJamming(uint64_t a, int_fast16_t count, uint64_t *zPtr)
 {
     uint64_t z;
 
@@ -106,7 +117,7 @@ INLINE void shift64RightJamming( uint64_t a, int16 count, uint64_t *zPtr )
 
 INLINE void
  shift64ExtraRightJamming(
-     uint64_t a0, uint64_t a1, int16 count, uint64_t *z0Ptr, uint64_t *z1Ptr )
+     uint64_t a0, uint64_t a1, int_fast16_t count, uint64_t *z0Ptr, uint64_t *z1Ptr)
 {
     uint64_t z0, z1;
     int8 negCount = ( - count ) & 63;
@@ -143,7 +154,7 @@ INLINE void
 
 INLINE void
  shift128Right(
-     uint64_t a0, uint64_t a1, int16 count, uint64_t *z0Ptr, uint64_t *z1Ptr )
+     uint64_t a0, uint64_t a1, int_fast16_t count, uint64_t *z0Ptr, uint64_t *z1Ptr)
 {
     uint64_t z0, z1;
     int8 negCount = ( - count ) & 63;
@@ -157,7 +168,7 @@ INLINE void
         z0 = a0>>count;
     }
     else {
-        z1 = ( count < 64 ) ? ( a0>>( count & 63 ) ) : 0;
+        z1 = (count < 128) ? (a0 >> (count & 63)) : 0;
         z0 = 0;
     }
     *z1Ptr = z1;
@@ -178,7 +189,7 @@ INLINE void
 
 INLINE void
  shift128RightJamming(
-     uint64_t a0, uint64_t a1, int16 count, uint64_t *z0Ptr, uint64_t *z1Ptr )
+     uint64_t a0, uint64_t a1, int_fast16_t count, uint64_t *z0Ptr, uint64_t *z1Ptr)
 {
     uint64_t z0, z1;
     int8 negCount = ( - count ) & 63;
@@ -232,7 +243,7 @@ INLINE void
      uint64_t a0,
      uint64_t a1,
      uint64_t a2,
-     int16 count,
+     int_fast16_t count,
      uint64_t *z0Ptr,
      uint64_t *z1Ptr,
      uint64_t *z2Ptr
@@ -287,7 +298,7 @@ INLINE void
 
 INLINE void
  shortShift128Left(
-     uint64_t a0, uint64_t a1, int16 count, uint64_t *z0Ptr, uint64_t *z1Ptr )
+     uint64_t a0, uint64_t a1, int_fast16_t count, uint64_t *z0Ptr, uint64_t *z1Ptr)
 {
 
     *z1Ptr = a1<<count;
@@ -309,7 +320,7 @@ INLINE void
      uint64_t a0,
      uint64_t a1,
      uint64_t a2,
-     int16 count,
+     int_fast16_t count,
      uint64_t *z0Ptr,
      uint64_t *z1Ptr,
      uint64_t *z2Ptr
@@ -580,7 +591,7 @@ static uint64_t estimateDiv128To64( uint64_t a0, uint64_t a1, uint64_t b )
 | value.
 *----------------------------------------------------------------------------*/
 
-static uint32_t estimateSqrt32( int16 aExp, uint32_t a )
+static uint32_t estimateSqrt32(int_fast16_t aExp, uint32_t a)
 {
     static const uint16_t sqrtOddAdjustments[] = {
         0x0004, 0x0022, 0x005D, 0x00B1, 0x011D, 0x019F, 0x0236, 0x02E0,
@@ -616,6 +627,13 @@ static uint32_t estimateSqrt32( int16 aExp, uint32_t a )
 
 static int8 countLeadingZeros32( uint32_t a )
 {
+#if SOFTFLOAT_GNUC_PREREQ(3, 4)
+    if (a) {
+        return __builtin_clz(a);
+    } else {
+        return 32;
+    }
+#else
     static const int8 countLeadingZerosHigh[] = {
         8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
         3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
@@ -647,7 +665,7 @@ static int8 countLeadingZeros32( uint32_t a )
     }
     shiftCount += countLeadingZerosHigh[ a>>24 ];
     return shiftCount;
-
+#endif
 }
 
 /*----------------------------------------------------------------------------
@@ -657,6 +675,13 @@ static int8 countLeadingZeros32( uint32_t a )
 
 static int8 countLeadingZeros64( uint64_t a )
 {
+#if SOFTFLOAT_GNUC_PREREQ(3, 4)
+    if (a) {
+        return __builtin_clzll(a);
+    } else {
+        return 64;
+    }
+#else
     int8 shiftCount;
 
     shiftCount = 0;
@@ -668,7 +693,7 @@ static int8 countLeadingZeros64( uint64_t a )
     }
     shiftCount += countLeadingZeros32( a );
     return shiftCount;
-
+#endif
 }
 
 /*----------------------------------------------------------------------------