Hi Jeff,
>> gcc/
>> * common.opt (flimit-function-alignment): New.
>> * doc/invoke.texi (-flimit-function-alignment): Document.
>> * emit-rtl.h (struct rtl_data): Add max_insn_address field.
>> * final.c (shorten_branches): Set it.
>> * varasm.c (assemble_start_function): Limit alignment if
>> requested.
>>
>> gcc/testsuite/
>> * gcc.target/i386/align-limit.c: New test.
> OK. Sorry for the long delay.
unfortunately, this broke Solaris 12/SPARC bootstrap with /bin/as:
/vol/gcc/src/hg/trunk/local/gcc/varasm.c: In function 'void
assemble_start_function(tree, const char*)':
/vol/gcc/src/hg/trunk/local/gcc/varasm.c:1794:11: error: unused variable
'align_log' [-Werror=unused-variable]
int align_log = align_functions_log;
^~~~~~~~~
The following fixes it and allowed bootstrap to complete successfully.
I'm going to commit it as obvious.
Rainer
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University
2016-11-24 Rainer Orth <r...@cebitec.uni-bielefeld.de>
* varasm.c (assemble_start_function): Wrap align_log definition in
ASM_OUTPUT_MAX_SKIP_ALIGN.
diff --git a/gcc/varasm.c b/gcc/varasm.c
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -1791,7 +1791,9 @@ assemble_start_function (tree decl, cons
&& align_functions_log > align
&& optimize_function_for_speed_p (cfun))
{
+#ifdef ASM_OUTPUT_MAX_SKIP_ALIGN
int align_log = align_functions_log;
+#endif
int max_skip = align_functions - 1;
if (flag_limit_function_alignment && crtl->max_insn_address > 0
&& max_skip >= crtl->max_insn_address)
