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106 lines
5.4 KiB
106 lines
5.4 KiB
diff -up hdf5-1.8.12/configure.ac.ldouble-ppc64le hdf5-1.8.12/configure.ac
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--- hdf5-1.8.12/configure.ac.ldouble-ppc64le 2014-03-19 08:58:07.933233530 -0600
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+++ hdf5-1.8.12/configure.ac 2014-03-19 09:01:48.651040050 -0600
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@@ -3766,6 +3766,13 @@ else
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unsigned char s2[8];
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int ret = 1;
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+#if defined __powerpc64__ && defined _LITTLE_ENDIAN
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+ /* Don't bother checking on ppc64le, we know it'll work, and
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+ * that what hdf5 calls 'special algorithm' simply is
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+ * IBM ldouble 128 (i.e. two seperately scaled doubles).
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+ * The check below assumes big endian. */
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+ ret = 0;
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+#endif
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if(sizeof(long double) == 16 && sizeof(long) == 8) {
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/*make sure the long double type has 16 bytes in size and
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* 11 bits of exponent. If it is,
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@@ -3844,6 +3851,13 @@ else
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unsigned char s[16];
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int flag=0, ret=1;
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+#if defined __powerpc64__ && defined _LITTLE_ENDIAN
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+ /* Don't bother checking on ppc64le, we know it'll work, and
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+ * that what hdf5 calls 'special algorithm' simply is
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+ * IBM ldouble 128 (i.e. two seperately scaled doubles).
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+ * The check below assumes big endian. */
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+ ret = 0;
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+#endif
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/*Determine if long double has 16 byte in size, 11 bit exponent, and
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*the bias is 0x3ff */
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if(sizeof(long double) == 16) {
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diff -up hdf5-1.8.12/configure.ldouble-ppc64le hdf5-1.8.12/configure
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--- hdf5-1.8.12/configure.ldouble-ppc64le 2014-03-19 08:58:07.918233616 -0600
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+++ hdf5-1.8.12/configure 2014-03-19 08:58:07.932233536 -0600
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@@ -30362,6 +30362,13 @@ else
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unsigned char s2[8];
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int ret = 1;
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+#if defined __powerpc64__ && defined _LITTLE_ENDIAN
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+ /* Don't bother checking on ppc64le, we know it'll work, and
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+ that what hdf5 calls 'special algorithm' simply is
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+ IBM ldouble 128 (i.e. two seperately scaled doubles).
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+ The check below assumes big endian. */
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+ ret = 0;
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+#endif
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if(sizeof(long double) == 16 && sizeof(long) == 8) {
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/*make sure the long double type has 16 bytes in size and
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* 11 bits of exponent. If it is,
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@@ -30466,6 +30473,13 @@ else
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unsigned char s[16];
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int flag=0, ret=1;
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+#if defined __powerpc64__ && defined _LITTLE_ENDIAN
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+ /* Don't bother checking on ppc64le, we know it'll work, and
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+ that what hdf5 calls 'special algorithm' simply is
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+ IBM ldouble 128 (i.e. two seperately scaled doubles).
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+ The check below assumes big endian. */
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+ ret = 0;
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+#endif
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/*Determine if long double has 16 byte in size, 11 bit exponent, and
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*the bias is 0x3ff */
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if(sizeof(long double) == 16) {
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diff -up hdf5-1.8.12/test/dt_arith.c.ldouble-ppc64le hdf5-1.8.12/test/dt_arith.c
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--- hdf5-1.8.12/test/dt_arith.c.ldouble-ppc64le 2013-11-21 08:14:03.000000000 -0700
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+++ hdf5-1.8.12/test/dt_arith.c 2014-03-19 08:58:07.935233518 -0600
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@@ -3072,7 +3072,18 @@ test_conv_flt_1 (const char *name, int r
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buf, saved, nelmts);
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#if H5_SIZEOF_LONG_DOUBLE!=H5_SIZEOF_DOUBLE && H5_SIZEOF_LONG_DOUBLE!=0
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} else if(src_type == FLT_LDOUBLE) {
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- INIT_FP_SPECIAL(src_size, src_nbits, sendian, LDBL_MANT_DIG, dst_size,
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+ size_t mant_dig = LDBL_MANT_DIG;
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+ if (mant_dig >= src_nbits) {
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+ /* This happens for IBM long double in little endian.
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+ The macro LDBL_MANT_DIG says 106 mantissa bits, but the
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+ HDF5 detection code actually represents it as a normal 64bit
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+ double (52 bit mantissa) with the upper double being
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+ unspec bits (which is sort of okay as the testsuite
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+ wouldn't deal with that format correctly anyway). So
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+ override the mantissa size. */
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+ mant_dig = 52;
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+ }
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+ INIT_FP_SPECIAL(src_size, src_nbits, sendian, mant_dig, dst_size,
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buf, saved, nelmts);
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#endif
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} else
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@@ -3807,7 +3818,18 @@ test_conv_int_fp(const char *name, int r
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INIT_FP_DENORM(long double, LDBL_MANT_DIG, src_size, src_nbits, sendian, dst_size,
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buf, saved, nelmts);
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} else {
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- INIT_FP_SPECIAL(src_size, src_nbits, sendian, LDBL_MANT_DIG, dst_size, buf, saved, nelmts);
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+ size_t mant_dig = LDBL_MANT_DIG;
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+ if (mant_dig >= src_nbits) {
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+ /* This happens for IBM long double in little endian.
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+ The macro LDBL_MANT_DIG says 106 mantissa bits, but the
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+ HDF5 detection code actually represents it as a normal 64bit
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+ double (52 bit mantissa) with the upper double being
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+ unspec bits (which is sort of okay as the testsuite
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+ wouldn't deal with that format correctly anyway). So
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+ override the mantissa size. */
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+ mant_dig = 52;
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+ }
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+ INIT_FP_SPECIAL(src_size, src_nbits, sendian, mant_dig, dst_size, buf, saved, nelmts);
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}
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#endif
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} else
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