From 15b5aef3e72ff167751f52111b7a7be3429aae14 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 19 Mar 2002 18:13:39 -0800 Subject: flow.c (EH_USES): Provide default. * flow.c (EH_USES): Provide default. (calculate_global_regs_live): Use it for EH edges and noreturn calls. * doc/tm.texi (EH_USES): New. * config/ia64/ia64.c (ia64_eh_uses): New. * config/ia64/ia64-protos.h: Update. * config/ia64/ia64.h (EH_USES): New. From-SVN: r51060 --- gcc/doc/tm.texi | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'gcc/doc') diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 20d9fa1..3f37cdb 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -4042,6 +4042,12 @@ Define this macro as a C expression that is nonzero for registers that are used by the epilogue or the @samp{return} pattern. The stack and frame pointer registers are already be assumed to be used as needed. +@findex EH_USES +@item EH_USES (@var{regno}) +Define this macro as a C expression that is nonzero for registers that are +used by the exception handling mechanism, and so should be considered live +on entry to an exception edge. + @findex DELAY_SLOTS_FOR_EPILOGUE @item DELAY_SLOTS_FOR_EPILOGUE Define this macro if the function epilogue contains delay slots to which -- cgit v1.1