[llvm-testresults] buildbot failure in smooshlab on clang-x86_64-darwin10

daniel_dunbar at apple.com daniel_dunbar at apple.com
Fri Apr 30 18:56:47 PDT 2010


The Buildbot has detected a new failure of clang-x86_64-darwin10 on smooshlab.
Full details are available at:
 http://smooshlab.apple.com:8010/builders/clang-x86_64-darwin10/builds/6749

Buildbot URL: http://smooshlab.apple.com:8010/

Buildslave for this Build: smoosh-04

Build Reason: 
Build Source Stamp: 102824
Blamelist: lattner

BUILD FAILED: failed test-clang

sincerely,
 -The Buildbot


================================================================================

CHANGES:
Files:
 lib/Analysis/IPA/CallGraphSCCPass.cpp
 lib/Transforms/Utils/InlineFunction.cpp
 test/Transforms/Inline/devirtualize.ll
At: Fri 30 Apr 2010 18:20:46
Changed By: lattner
Comments: Implement rdar://6295824 and PR6724 with two tiny changes
that can have a big effect :).  The first is to enable the
iterative SCC passmanager juice that kicks in when the
scc passmgr detects that a function pass has devirtualized
a call.  In this case, it will rerun all the passes it 
manages on the SCC, up to the iteration count limit (4). This
is useful because a function pass may devirualize a call, and
we want the inliner to inline it, or pruneeh to infer stuff
about it, etc.

The second patch is to add *all* call sites to the 
DevirtualizedCalls list the inliner uses.  This list is
about to get renamed, but the jist of this is that the 
inliner now reconsiders *all* inlined call sites as candidates
for further inlining.  The intuition is this that in cases 
like this:

f() { g(1); }     g(int x) { h(x); }

We analyze this bottom up, and may decide that it isn't 
profitable to inline H into G.  Next step, we decide that it is
profitable to inline G into F, and do so, which means that F 
now calls H.  Even though the call from G -> H may not have been
profitable to inline, the call from F -> H may be (in this case
because a constant allows folding etc).

In my spot checks, this doesn't have a big impact on code.  For
example, the LLC output for 252.eon grew from 0.02% (from
317252 to 317308) and 176.gcc actually shrunk by .3% (from 1525612
to 1520964 bytes).  252.eon never iterated in the SCC Passmgr,
176.gcc iterated at most 1 time.

Properties: 




Files:
 include/llvm/Transforms/Utils/Cloning.h
 lib/Transforms/IPO/Inliner.cpp
 lib/Transforms/Utils/InlineFunction.cpp
At: Fri 30 Apr 2010 18:30:46
Changed By: lattner
Comments: rename InlineInfo.DevirtualizedCalls -> InlinedCalls to
reflect that it includes all inlined calls now, not just
devirtualized ones.
Properties: 




LOGS:
Last 10 lines of 'stdio':
	********************
	Failing Tests (2):
	    Clang :: CodeGenCXX/member-function-pointer-calls.cpp
	    Clang :: CodeGenCXX/member-initializers.cpp
	
	  Expected Passes    : 2201
	  Expected Failures  : 21
	  Unexpected Failures: 2
	make[1]: *** [all] Error 1
	make: *** [test] Error 2

Last 10 lines of 'fail':
	Clang :: CodeGenCXX/member-function-pointer-calls.cpp
	Clang :: CodeGenCXX/member-initializers.cpp

Last 10 lines of 'xfail':
	Clang :: CodeGenCXX/conversion-function.cpp
	Clang :: FixIt/fixit-errors.c
	Clang :: FixIt/fixit-pmem.cpp
	Clang :: FixIt/typo.m
	Clang :: PCH/changed-files.c
	Clang :: PCH/pr4489.c
	Clang :: PCH/source-manager-stack.c
	Clang :: SemaCXX/rval-references-xfail.cpp
	Clang :: SemaObjCXX/overload.mm
	Clang :: SemaTemplate/instantiate-function-1.mm

Last 10 lines of 'member-function-pointer-calls.cpp':
	<stdin>:47:22: note: scanning from here
	define i32 @_Z2g1v() nounwind readnone {
	                     ^
	<stdin>:57:16: note: possible intended match here
	define linkonce_odr i32 @_ZN1A3vf1Ev(%struct.A* nocapture %this) nounwind readnone align 2 {
	               ^
	--
	
	********************
	

Last 10 lines of 'member-initializers.cpp':
	<stdin>:19:30: note: scanning from here
	define i32 @_Z1fv() nounwind readnone {
	                             ^
	<stdin>:29:16: note: possible intended match here
	define linkonce_odr i32 @_ZN1B1fEv(%struct.B* nocapture %this) nounwind readnone align 2 {
	               ^
	--
	
	********************
	




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