1*a58d3d2aSXin Lidnl opus-intrinsics.m4 2*a58d3d2aSXin Lidnl macro for testing for support for compiler intrinsics, either by default or with a compiler flag 3*a58d3d2aSXin Li 4*a58d3d2aSXin Lidnl OPUS_CHECK_INTRINSICS(NAME-OF-INTRINSICS, COMPILER-FLAG-FOR-INTRINSICS, VAR-IF-PRESENT, VAR-IF-DEFAULT, TEST-PROGRAM-HEADER, TEST-PROGRAM-BODY) 5*a58d3d2aSXin LiAC_DEFUN([OPUS_CHECK_INTRINSICS], 6*a58d3d2aSXin Li[ 7*a58d3d2aSXin Li AC_MSG_CHECKING([if compiler supports $1 intrinsics]) 8*a58d3d2aSXin Li AC_LINK_IFELSE( 9*a58d3d2aSXin Li [AC_LANG_PROGRAM($5, $6)], 10*a58d3d2aSXin Li [ 11*a58d3d2aSXin Li $3=1 12*a58d3d2aSXin Li $4=1 13*a58d3d2aSXin Li AC_MSG_RESULT([yes]) 14*a58d3d2aSXin Li ],[ 15*a58d3d2aSXin Li $4=0 16*a58d3d2aSXin Li AC_MSG_RESULT([no]) 17*a58d3d2aSXin Li AC_MSG_CHECKING([if compiler supports $1 intrinsics with $2]) 18*a58d3d2aSXin Li save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $2" 19*a58d3d2aSXin Li AC_LINK_IFELSE([AC_LANG_PROGRAM($5, $6)], 20*a58d3d2aSXin Li [ 21*a58d3d2aSXin Li AC_MSG_RESULT([yes]) 22*a58d3d2aSXin Li $3=1 23*a58d3d2aSXin Li ],[ 24*a58d3d2aSXin Li AC_MSG_RESULT([no]) 25*a58d3d2aSXin Li $3=0 26*a58d3d2aSXin Li ]) 27*a58d3d2aSXin Li CFLAGS="$save_CFLAGS" 28*a58d3d2aSXin Li ]) 29*a58d3d2aSXin Li]) 30