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-rw-r--r--config/cmake/ConfigureChecks.cmake10
-rw-r--r--config/cmake/H5pubconf.h.in3
-rwxr-xr-xconfigure26
-rw-r--r--configure.ac17
-rw-r--r--src/H5VMprivate.h29
-rw-r--r--src/H5config.h.in3
6 files changed, 10 insertions, 78 deletions
diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake
index 1a2c887..56586c5 100644
--- a/config/cmake/ConfigureChecks.cmake
+++ b/config/cmake/ConfigureChecks.cmake
@@ -259,16 +259,6 @@ H5ConversionTests (H5_LDOUBLE_TO_LONG_SPECIAL "Checking IF your system converts
#
H5ConversionTests (H5_LONG_TO_LDOUBLE_SPECIAL "Checking IF your system can convert (unsigned) long to long double values with special algorithm")
# ----------------------------------------------------------------------
-# Set the flag to indicate that the machine generates bad code
-# for the H5VM_log2_gen() routine in src/H5VMprivate.h
-# (This flag should be set to no for all machines, except for SGI IRIX64,
-# where the cache value is set to yes in it's config file)
-#
-if (H5_BAD_LOG2_CODE_GENERATED MATCHES ^H5_BAD_LOG2_CODE_GENERATED$)
- set (H5_BAD_LOG2_CODE_GENERATED 0 CACHE INTERNAL "Define if your system generates wrong code for log2 routine")
- message (STATUS "Checking IF your system generates wrong code for log2 routine... no")
-endif (H5_BAD_LOG2_CODE_GENERATED MATCHES ^H5_BAD_LOG2_CODE_GENERATED$)
-# ----------------------------------------------------------------------
# Check if pointer alignments are enforced
#
H5ConversionTests (H5_NO_ALIGNMENT_RESTRICTIONS "Checking IF alignment restrictions are strictly enforced")
diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in
index 8ec1a58..eccbe29 100644
--- a/config/cmake/H5pubconf.h.in
+++ b/config/cmake/H5pubconf.h.in
@@ -36,9 +36,6 @@
/* Define if building universal (internal helper macro) */
#cmakedefine H5_AC_APPLE_UNIVERSAL_BUILD @H5_AC_APPLE_UNIVERSAL_BUILD@
-/* Define if your system generates wrong code for log2 routine. */
-#cmakedefine H5_BAD_LOG2_CODE_GENERATED @H5_BAD_LOG2_CODE_GENERATED@
-
/* Define if the memory buffers being written to disk should be cleared before
writing. */
#cmakedefine H5_CLEAR_MEMORY @H5_CLEAR_MEMORY@
diff --git a/configure b/configure
index 26fd225..a272c8d 100755
--- a/configure
+++ b/configure
@@ -28309,32 +28309,6 @@ $as_echo "no" >&6; }
fi
## ----------------------------------------------------------------------
-## Set the flag to indicate that the machine generates bad code
-## for the H5VM_log2_gen() routine in src/H5VMprivate.h
-## (This flag should be set to no for all machines, except for SGI IRIX64,
-## where the cache value is set to yes in it's config file)
-##
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if bad code for log2 routine is generated" >&5
-$as_echo_n "checking if bad code for log2 routine is generated... " >&6; }
-if ${hdf5_cv_bad_log2_code_generated+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- hdf5_cv_bad_log2_code_generated=no
-fi
-
-
-if test ${hdf5_cv_bad_log2_code_generated} = "yes"; then
-
-$as_echo "#define BAD_LOG2_CODE_GENERATED 1" >>confdefs.h
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-## ----------------------------------------------------------------------
## Set some variables for general configuration information to be saved
## and installed with the libraries (used to generate libhdf5.settings).
##
diff --git a/configure.ac b/configure.ac
index 002c9e3..2150de2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2680,23 +2680,6 @@ else
fi
## ----------------------------------------------------------------------
-## Set the flag to indicate that the machine generates bad code
-## for the H5VM_log2_gen() routine in src/H5VMprivate.h
-## (This flag should be set to no for all machines, except for SGI IRIX64,
-## where the cache value is set to yes in it's config file)
-##
-AC_MSG_CHECKING([if bad code for log2 routine is generated])
-AC_CACHE_VAL([hdf5_cv_bad_log2_code_generated], [hdf5_cv_bad_log2_code_generated=no])
-
-if test ${hdf5_cv_bad_log2_code_generated} = "yes"; then
- AC_DEFINE([BAD_LOG2_CODE_GENERATED], [1],
- [Define if your system generates wrong code for log2 routine.])
- AC_MSG_RESULT([yes])
-else
- AC_MSG_RESULT([no])
-fi
-
-## ----------------------------------------------------------------------
## Set some variables for general configuration information to be saved
## and installed with the libraries (used to generate libhdf5.settings).
##
diff --git a/src/H5VMprivate.h b/src/H5VMprivate.h
index 4706b5f..20821b2 100644
--- a/src/H5VMprivate.h
+++ b/src/H5VMprivate.h
@@ -357,26 +357,17 @@ H5VM_log2_gen(uint64_t n)
unsigned r; /* r will be log2(n) */
register unsigned int t, tt, ttt; /* temporaries */
-#ifdef H5_BAD_LOG2_CODE_GENERATED
- if(n > (uint64_t)0x7fffffffffffffff)
- r = 63;
- else {
- n &= (uint64_t)0x7fffffffffffffff;
-#endif /* H5_BAD_LOG2_CODE_GENERATED */
- if((ttt = (unsigned)(n >> 32)))
- if((tt = (unsigned)(n >> 48)))
- r = (t = (unsigned)(n >> 56)) ? 56 + (unsigned)LogTable256[t] : 48 + (unsigned)LogTable256[tt & 0xFF];
- else
- r = (t = (unsigned)(n >> 40)) ? 40 + (unsigned)LogTable256[t] : 32 + (unsigned)LogTable256[ttt & 0xFF];
+ if((ttt = (unsigned)(n >> 32)))
+ if((tt = (unsigned)(n >> 48)))
+ r = (t = (unsigned)(n >> 56)) ? 56 + (unsigned)LogTable256[t] : 48 + (unsigned)LogTable256[tt & 0xFF];
else
- if((tt = (unsigned)(n >> 16)))
- r = (t = (unsigned)(n >> 24)) ? 24 + (unsigned)LogTable256[t] : 16 + (unsigned)LogTable256[tt & 0xFF];
- else
- /* Added 'uint8_t' cast to pacify PGCC compiler */
- r = (t = (unsigned)(n >> 8)) ? 8 + (unsigned)LogTable256[t] : (unsigned)LogTable256[(uint8_t)n];
-#ifdef H5_BAD_LOG2_CODE_GENERATED
- } /* end else */
-#endif /* H5_BAD_LOG2_CODE_GENERATED */
+ r = (t = (unsigned)(n >> 40)) ? 40 + (unsigned)LogTable256[t] : 32 + (unsigned)LogTable256[ttt & 0xFF];
+ else
+ if((tt = (unsigned)(n >> 16)))
+ r = (t = (unsigned)(n >> 24)) ? 24 + (unsigned)LogTable256[t] : 16 + (unsigned)LogTable256[tt & 0xFF];
+ else
+ /* Added 'uint8_t' cast to pacify PGCC compiler */
+ r = (t = (unsigned)(n >> 8)) ? 8 + (unsigned)LogTable256[t] : (unsigned)LogTable256[(uint8_t)n];
return(r);
} /* H5VM_log2_gen() */
diff --git a/src/H5config.h.in b/src/H5config.h.in
index bf21313..9b840f2 100644
--- a/src/H5config.h.in
+++ b/src/H5config.h.in
@@ -3,9 +3,6 @@
/* Define if building universal (internal helper macro) */
#undef AC_APPLE_UNIVERSAL_BUILD
-/* Define if your system generates wrong code for log2 routine. */
-#undef BAD_LOG2_CODE_GENERATED
-
/* Define if the memory buffers being written to disk should be cleared before
writing. */
#undef CLEAR_MEMORY