http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60897
Bug ID: 60897
Summary: Mangled function name in warning during -fprofile-use
phase of Firefox build
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
During Firefox PGO build I noticed an mangled function name
in a warning during -fprofile-use phase:
markus@x4 src % c++ -o Unified_cpp_js_src2.o -c -I../../dist/system_wrappers
-include /var/tmp/mozilla-central/config/gcc_hidden.h -DENABLE_PARALLEL_JS
-DENABLE_BINARYDATA -DENABLE_SHARED_ARRAY_BUFFER -DEXPORT_JS_API
-DJS_HAS_CTYPES -DDLL_PREFIX='"lib"' -DDLL_SUFFIX='".so"' -DUSE_SYSTEM_MALLOC=1
-DENABLE_ASSEMBLER=1 -DENABLE_JIT=1 -DMOZ_GLUE_IN_PROGRAM -DNO_NSPR_10_SUPPORT
-DUSE_ZLIB -I/var/tmp/mozilla-central/js/src -I.
-I/usr/lib64/libffi-3.0.13/include
-I/var/tmp/mozilla-central/js/src/../../mfbt/double-conversion
-I../../dist/include -I/usr/include/nspr -fPIC -DMOZILLA_CLIENT
-include ../../js/src/js-confdefs.h -MD -MP -MF .deps/Unified_cpp_js_src2.o.pp
-Wall -Wpointer-arith -Woverloaded-virtual -Werror=return-type
-Werror=int-to-pointer-cast -Wtype-limits -Wempty-body -Werror=conversion-null
-Wsign-compare -Wno-invalid-offsetof -Wcast-align -fprofile-use
-fprofile-correction -ffunction-sections -fdata-sections -march=amdfam10
-fno-rtti -fno-exceptions -fno-math-errno -std=gnu++0x -pthread -pipe -DNDEBUG
-DTRIMMED -O3 -fomit-frame-pointer
/var/tmp/moz-build-dir/js/src/Unified_cpp_js_src2.cpp
In file included from
/var/tmp/moz-build-dir/js/src/Unified_cpp_js_src2.cpp:106:0:
/var/tmp/mozilla-central/js/src/jit/BaselineIC.cpp: In function ‘bool
js::jit::_ZN2js3jitL26TryAttachNativeGetPropStubEP9JSContextN2JS6HandleIP8JSScriptEEPhPNS0_18ICGetProp_FallbackENS4_IPNS_12PropertyNameEEENS4_INS3_5ValueEEESF_Pb.isra.1329(JSContext*,
JS::HandleScript, jsbytecode*, js::jit::ICGetProp_Fallback*,
js::HandlePropertyName, JS::HandleValue, bool*)’:
/var/tmp/mozilla-central/js/src/jit/BaselineIC.cpp:6215:13: warning:
‘domProxyHasGeneration’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
if (domProxyHasGeneration) {
^
/var/tmp/mozilla-central/js/src/jit/BaselineIC.cpp:6245:20: warning:
‘domProxyShadowsResult’ may be used uninitialized in this function
[-Wmaybe-uninitialized]
if (isDOMProxy && domProxyShadowsResult == Shadows) {
^
markus@x4 src % c++filt
_ZN2js3jitL26TryAttachNativeGetPropStubEP9JSContextN2JS6HandleIP8JSScriptEEPhPNS0_18ICGetProp_FallbackENS4_IPNS_12PropertyNameEEENS4_INS3_5ValueEEESF_Pb.isra.1329
js::jit::TryAttachNativeGetPropStub(JSContext*, JS::Handle<JSScript*>, unsigned
char*, js::jit::ICGetProp_Fallback*, JS::Handle<js::PropertyName*>,
JS::Handle<JS::Value>, JS::Handle<JS::Value>, bool*) [clone .isra.1329]
