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[pph] Do not emit PCH if generating PPH (issue4591061)

Message ID 20110609184955.794601DA1CD@topo.tor.corp.google.com
State New
Headers show

Commit Message

Diego Novillo June 9, 2011, 6:49 p.m. UTC 
We were trying to generate PCH and PPH information at the same time.
We never noticed because PPH is generated after PCH, so we were just
clobbering over the previous dump.

Found it by accident while debugging a GC ICE.  This should make
testing slightly faster.

Committed to the branch.



	* lang-specs.h (@c++-header): Do not emit PCH if any -fpph flag is
	present.


--
This patch is available for review at http://codereview.appspot.com/4591061
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Patch

diff --git a/gcc/cp/lang-specs.h b/gcc/cp/lang-specs.h
index a73aba3..9943446 100644
--- a/gcc/cp/lang-specs.h
+++ b/gcc/cp/lang-specs.h
@@ -48,8 +48,8 @@  along with GCC; see the file COPYING3.  If not see
       cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\
 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
 	%(cc1_options) %2\
-	%{!fsyntax-only:%{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
-        %W{o*:--output-pch=%*}}%V}}}}",
+	%{!fsyntax-only:%{!fpph*:%{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
+        %W{o*:--output-pch=%*}}}%V}}}}",
      CPLUSPLUS_CPP_SPEC, 0, 0},
   {"@c++",
     "%{E|M|MM:cc1plus -E %(cpp_options) %2 %(cpp_debug_options)}\