This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
non-clobbering call insn
- From: Nick Burrett <nick dot burrett at btinternet dot com>
- To: gcc at gcc dot gnu dot org
- Date: Wed, 20 Nov 2002 10:39:48 +0000
- Subject: non-clobbering call insn
- Organization: Home
Hi,
Is it possible to have a call insn that doesn't automatically clobber
all the registers specified in CALL_USED_REGISTERS ? This would be
useful for an explicit stack checking function, called from the function
prologue, which always preserves the registers it uses rather than
leaving it up to the caller to preserve the registers.
Regards,
Nick.