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re PR tree-optimization/38977 (bash no longer builds with profile-feedback) 

2009-02-06  Richard Guenther  <rguenther@suse.de>

	PR middle-end/38977
	* tree-cfg.c (need_fake_edge_p): Force a fake edge for
	fork because we may expand it as __gcov_fork.

From-SVN: r143982
This commit is contained in:
Richard Guenther 2009-02-06 09:06:39 +00:00 committed by Richard Biener
parent 8506528ca2
commit 3cfa762bf0
2 changed files with 14 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-02-06 Richard Guenther <rguenther@suse.de>
PR middle-end/38977
* tree-cfg.c (need_fake_edge_p): Force a fake edge for
fork because we may expand it as __gcov_fork.
2009-02-06 Nick Clifton <nickc@redhat.com>
* config/m32c/m32c.h (PCC_BITFIELD_TYPE_MATTERS): Define to

11
gcc/tree-cfg.c
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@ -6444,9 +6444,14 @@ need_fake_edge_p (gimple t)
&& fndecl
&& DECL_BUILT_IN (fndecl)
&& (call_flags & ECF_NOTHROW)
&& !(call_flags & ECF_NORETURN)
&& !(call_flags & ECF_RETURNS_TWICE))
return false;
&& !(call_flags & ECF_RETURNS_TWICE)
/* fork() doesn't really return twice, but the effect of
wrapping it in __gcov_fork() which calls __gcov_flush()
and clears the counters before forking has the same
effect as returning twice. Force a fake edge. */
&& !(DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL
&& DECL_FUNCTION_CODE (fndecl) == BUILT_IN_FORK))
return false;
if (is_gimple_call (t)
&& !(call_flags & ECF_NORETURN))