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PR/target 52642 

PR/target 52642
	* config/sh/sh.c (sh_expand_prologue): Emit blockage at the end of
	prologue for unwinder and profiler.

From-SVN: r185616
This commit is contained in:
Kaz Kojima 2012-03-21 20:19:31 +00:00 committed by Oleg Endo
parent a26f86dcb1
commit 6c5bfec01b
2 changed files with 13 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2012-03-21 Kaz Kojima <kkojima@gcc.gnu.org>
PR/target 52642
* config/sh/sh.c (sh_expand_prologue): Emit blockage at the end of
prologue for unwinder and profiler.
2012-03-21 Andreas Tobler <andreast@fgznet.ch>
* configure.ac (HAVE_LD_NO_DOT_SYMBOLS): Add powerpc64-*-freebsd*.

7
gcc/config/sh/sh.c
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@ -7239,6 +7239,13 @@ sh_expand_prologue (void)
emit_insn (gen_shcompact_incoming_args ());
}
/* If we are profiling, make sure no instructions are scheduled before
the call to mcount. Similarly if some call instructions are swapped
before frame related insns, it'll confuse the unwinder because
currently SH has no unwind info for function epilogues. */
if (crtl->profile || flag_exceptions || flag_unwind_tables)
emit_insn (gen_blockage ());
if (flag_stack_usage_info)
current_function_static_stack_size = stack_usage;
}