Allow the C and C++ compilers to support different methods of inline
assembly (including case where one supports inline assembly and the other doesn't). This commit was SVN r6714.
Этот коммит содержится в:
Brian Barrett
родитель
4e1837687b
Коммит
e84a02d79c
@ -477,7 +477,7 @@ dnl DEFINE OMPI_GCC_INLINE_ASSEMBLY to 0 or 1 depending on GCC
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dnl support
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_INLINE_GCC],[
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AC_DEFUN([OMPI_CHECK_INLINE_C_GCC],[
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assembly="$1"
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asm_result="unknown"
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@ -508,16 +508,61 @@ return ret;]]),
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AC_MSG_RESULT([$asm_result])
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if test "$asm_result" = "yes" ; then
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OMPI_GCC_INLINE_ASSEMBLY=1
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OMPI_C_GCC_INLINE_ASSEMBLY=1
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else
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OMPI_GCC_INLINE_ASSEMBLY=0
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OMPI_C_GCC_INLINE_ASSEMBLY=0
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fi
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AC_DEFINE_UNQUOTED([OMPI_GCC_INLINE_ASSEMBLY],
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[$OMPI_GCC_INLINE_ASSEMBLY],
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[Whether compiler supports GCC style inline assembly])
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AC_DEFINE_UNQUOTED([OMPI_C_GCC_INLINE_ASSEMBLY],
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[$OMPI_C_GCC_INLINE_ASSEMBLY],
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[Whether C compiler supports GCC style inline assembly])
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unset OMPI_GCC_INLINE_ASSEMBLY assembly asm_result
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unset OMPI_C_GCC_INLINE_ASSEMBLY assembly asm_result
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])dnl
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AC_DEFUN([OMPI_CHECK_INLINE_CXX_GCC],[
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assembly="$1"
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asm_result="unknown"
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AC_LANG_PUSH([C++])
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AC_MSG_CHECKING([if $CXX supports GCC inline assembly])
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if test ! "$assembly" = "" ; then
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AC_RUN_IFELSE(AC_LANG_PROGRAM([[
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AC_INCLUDES_DEFAULT]],
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[[int ret = 1;
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__asm__ __volatile__ ($assembly);
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return ret;]]),
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[asm_result="yes"], [asm_result="no"],
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[asm_result="unknown"])
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else
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assembly="test skipped - assuming no"
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fi
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# if we're cross compiling, just try to compile and figure good enough
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if test "$asm_result" = "unknown" ; then
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AC_LINK_IFELSE(AC_LANG_PROGRAM([[
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AC_INCLUDES_DEFAULT]],
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[[int ret = 1;
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__asm__ __volatile__ ($assembly);
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return ret;]]),
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[asm_result="yes"], [asm_result="no"])
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fi
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AC_MSG_RESULT([$asm_result])
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if test "$asm_result" = "yes" ; then
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OMPI_CXX_GCC_INLINE_ASSEMBLY=1
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else
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OMPI_CXX_GCC_INLINE_ASSEMBLY=0
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fi
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AC_DEFINE_UNQUOTED([OMPI_CXX_GCC_INLINE_ASSEMBLY],
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[$OMPI_CXX_GCC_INLINE_ASSEMBLY],
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[Whether C++ compiler supports GCC style inline assembly])
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AC_LANG_POP([C++])
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unset OMPI_CXX_GCC_INLINE_ASSEMBLY assembly asm_result
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])dnl
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@ -529,7 +574,7 @@ dnl DEFINE OMPI_DEC to 0 or 1 depending on DEC
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dnl support
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_INLINE_DEC],[
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AC_DEFUN([OMPI_CHECK_INLINE_C_DEC],[
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AC_MSG_CHECKING([if $CC supports DEC inline assembly])
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@ -543,16 +588,44 @@ return 0;]]),
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AC_MSG_RESULT([$asm_result])
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if test "$asm_result" = "yes" ; then
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OMPI_DEC_INLINE_ASSEMBLY=1
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OMPI_C_DEC_INLINE_ASSEMBLY=1
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else
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OMPI_DEC_INLINE_ASSEMBLY=0
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OMPI_C_DEC_INLINE_ASSEMBLY=0
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fi
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AC_DEFINE_UNQUOTED([OMPI_DEC_INLINE_ASSEMBLY],
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[$OMPI_DEC_INLINE_ASSEMBLY],
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[Whether compiler supports DEC style inline assembly])
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AC_DEFINE_UNQUOTED([OMPI_C_DEC_INLINE_ASSEMBLY],
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[$OMPI_C_DEC_INLINE_ASSEMBLY],
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[Whether C compiler supports DEC style inline assembly])
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unset OMPI_DEC_INLINE_ASSEMBLY asm_result
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unset OMPI_C_DEC_INLINE_ASSEMBLY asm_result
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])dnl
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AC_DEFUN([OMPI_CHECK_INLINE_CXX_DEC],[
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AC_LANG_PUSH([C++])
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AC_MSG_CHECKING([if $CXX supports DEC inline assembly])
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AC_LINK_IFELSE(AC_LANG_PROGRAM([[
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AC_INCLUDES_DEFAULT
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#include <c_asm.h>]],
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[[asm("");
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return 0;]]),
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[asm_result="yes"], [asm_result="no"])
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AC_MSG_RESULT([$asm_result])
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if test "$asm_result" = "yes" ; then
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OMPI_CXX_DEC_INLINE_ASSEMBLY=1
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else
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OMPI_CXX_DEC_INLINE_ASSEMBLY=0
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fi
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AC_DEFINE_UNQUOTED([OMPI_CXX_DEC_INLINE_ASSEMBLY],
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[$OMPI_CXX_DEC_INLINE_ASSEMBLY],
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[Whether C++ compiler supports DEC style inline assembly])
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AC_LANG_POP([C++])
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unset OMPI_CXX_DEC_INLINE_ASSEMBLY asm_result
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])dnl
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@ -564,25 +637,42 @@ dnl DEFINE OMPI_XLC to 0 or 1 depending on XLC
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dnl support
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dnl
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dnl #################################################################
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AC_DEFUN([OMPI_CHECK_INLINE_XLC],[
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AC_DEFUN([OMPI_CHECK_INLINE_C_XLC],[
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AC_MSG_CHECKING([if $CC supports XLC inline assembly])
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OMPI_XLC_INLINE_ASSEMBLY=0
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OMPI_C_XLC_INLINE_ASSEMBLY=0
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asm_result="no"
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if test "$CC" = "xlc" ; then
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if test "$CXX" = "xlC" -o "$CXX" = "xlc++" ; then
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OMPI_XLC_INLINE_ASSEMBLY=1
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asm_result="yes"
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fi
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OMPI_XLC_INLINE_ASSEMBLY=1
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asm_result="yes"
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fi
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AC_MSG_RESULT([$asm_result])
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AC_DEFINE_UNQUOTED([OMPI_XLC_INLINE_ASSEMBLY],
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[$OMPI_XLC_INLINE_ASSEMBLY],
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[Whether compiler supports XLC style inline assembly])
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AC_DEFINE_UNQUOTED([OMPI_C_XLC_INLINE_ASSEMBLY],
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[$OMPI_C_XLC_INLINE_ASSEMBLY],
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[Whether C compiler supports XLC style inline assembly])
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unset OMPI_XLC_INLINE_ASSEMBLY
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unset OMPI_C_XLC_INLINE_ASSEMBLY
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])dnl
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AC_DEFUN([OMPI_CHECK_INLINE_CXX_XLC],[
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AC_MSG_CHECKING([if $CXX supports XLC inline assembly])
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OMPI_CXX_XLC_INLINE_ASSEMBLY=0
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asm_result="no"
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if test "$CXX" = "xlC" -o "$CXX" = "xlc++" ; then
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OMPI_CXX_XLC_INLINE_ASSEMBLY=1
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asm_result="yes"
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fi
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AC_MSG_RESULT([$asm_result])
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AC_DEFINE_UNQUOTED([OMPI_CXX_XLC_INLINE_ASSEMBLY],
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[$OMPI_CXX_XLC_INLINE_ASSEMBLY],
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[Whether C++ compiler supports XLC style inline assembly])
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unset OMPI_CXX_XLC_INLINE_ASSEMBLY
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])dnl
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@ -740,9 +830,12 @@ esac
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# now that we know our architecture, try to inline assemble
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OMPI_CHECK_INLINE_GCC([$OMPI_GCC_INLINE_ASSIGN])
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OMPI_CHECK_INLINE_DEC
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OMPI_CHECK_INLINE_XLC
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OMPI_CHECK_INLINE_C_GCC([$OMPI_GCC_INLINE_ASSIGN])
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OMPI_CHECK_INLINE_C_DEC
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OMPI_CHECK_INLINE_C_XLC
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OMPI_CHECK_INLINE_CXX_GCC([$OMPI_GCC_INLINE_ASSIGN])
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OMPI_CHECK_INLINE_CXX_DEC
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OMPI_CHECK_INLINE_CXX_XLC
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# format:
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# config_file-text-global-label_suffix-gsym-lsym-type-size-align_log-ppc_r_reg-64_bit
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@ -53,14 +53,34 @@
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/* do some quick #define cleanup in cases where we are doing
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testing... */
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#ifdef OMPI_DISABLE_INLINE_ASM
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#undef OMPI_GCC_INLINE_ASSEMBLY
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#define OMPI_GCC_INLINE_ASSEMBLY 0
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#undef OMPI_DEC_INLINE_ASSEMBLY
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#define OMPI_DEC_INLINE_ASSEMBLY 0
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#undef OMPI_XLC_INLINE_ASSEMBLY
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#define OMPI_XLC_INLINE_ASSEMBLY 0
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#undef OMPI_C_GCC_INLINE_ASSEMBLY
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#define OMPI_C_GCC_INLINE_ASSEMBLY 0
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#undef OMPI_CXX_GCC_INLINE_ASSEMBLY
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#define OMPI_CXX_GCC_INLINE_ASSEMBLY 0
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#undef OMPI_C_DEC_INLINE_ASSEMBLY
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#define OMPI_C_DEC_INLINE_ASSEMBLY 0
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#undef OMPI_CXX_DEC_INLINE_ASSEMBLY
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#define OMPI_CXX_DEC_INLINE_ASSEMBLY 0
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#undef OMPI_C_XLC_INLINE_ASSEMBLY
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#define OMPI_C_XLC_INLINE_ASSEMBLY 0
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#undef OMPI_CXX_XLC_INLINE_ASSEMBLY
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#define OMPI_CXX_XLC_INLINE_ASSEMBLY 0
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#endif
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/* define OMPI_{GCC,DEC,XLC}_INLINE_ASSEMBLY based on the
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OMPI_{C,CXX}_{GCC,DEC,XLC}_INLINE_ASSEMBLY defines and whether we
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are in C or C++ */
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#if defined(c_plusplus) || defined(__cplusplus)
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#define OMPI_GCC_INLINE_ASSEMBLY OMPI_CXX_GCC_INLINE_ASSEMBLY
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#define OMPI_DEC_INLINE_ASSEMBLY OMPI_CXX_DEC_INLINE_ASSEMBLY
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#define OMPI_XLC_INLINE_ASSEMBLY OMPI_CXX_XLC_INLINE_ASSEMBLY
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#else
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#define OMPI_GCC_INLINE_ASSEMBLY OMPI_C_GCC_INLINE_ASSEMBLY
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#define OMPI_DEC_INLINE_ASSEMBLY OMPI_C_DEC_INLINE_ASSEMBLY
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#define OMPI_XLC_INLINE_ASSEMBLY OMPI_C_XLC_INLINE_ASSEMBLY
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#endif
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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