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| author | Richard Henderson <rth@redhat.com> | 2002-03-19 18:13:39 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-03-19 18:13:39 -0800 |
| commit | 15b5aef3e72ff167751f52111b7a7be3429aae14 (patch) | |
| tree | b494bd2379913f69721d6206bfacbe19e6522eb1 /gcc/doc | |
| parent | 02a7a3fda139c2e6ddaca51063d9dc0f38b3077b (diff) | |
| download | gcc-15b5aef3e72ff167751f52111b7a7be3429aae14.zip gcc-15b5aef3e72ff167751f52111b7a7be3429aae14.tar.gz gcc-15b5aef3e72ff167751f52111b7a7be3429aae14.tar.bz2 | |
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
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 6 |
1 files changed, 6 insertions, 0 deletions
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 |