[Bug c++/69237] New: [6 Regression] strange -Wmisleading-indentation warning when building Chromium

["trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69237

            Bug ID: 69237
           Summary: [6 Regression] strange -Wmisleading-indentation
                    warning when building Chromium
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
  Target Milestone: ---

Building Chromium shows:

markus@x4 Release % c++ -MMD -MF
obj/third_party/WebKit/Source/core/gen/blink/bindings/core/v8/webcore_generated.V8GeneratedCoreBindings03.o.d
-DV8_DEPRECATION_WARNINGS -DCLD_VERSION=2 -D_FILE_OFFSET_BITS=64 -DDISABLE_NACL
-DCHROMIUM_BUILD -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_ASH=1
-DUSE_PANGO=1 -DUSE_CAIRO=1 -DUSE_DEFAULT_RENDER_THEME=1 -DUSE_LIBJPEG_TURBO=1
-DUSE_X11=1 -DUSE_CLIPBOARD_AURAX11=1 -DENABLE_ONE_CLICK_SIGNIN
-DENABLE_WEBRTC=1 -DENABLE_MEDIA_ROUTER=1 -DUSE_PROPRIETARY_CODECS
-DENABLE_PEPPER_CDMS -DENABLE_CONFIGURATION_POLICY -DENABLE_NOTIFICATIONS
-DENABLE_HIDPI=1 -DENABLE_TOPCHROME_MD=1 -DUSE_UDEV -DDONT_EMBED_BUILD_METADATA
-DFIELDTRIAL_TESTING_ENABLED -DENABLE_TASK_MANAGER=1 -DENABLE_EXTENSIONS=1
-DENABLE_PDF=1 -DENABLE_PLUGINS=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_THEMES=1
-DENABLE_AUTOFILL_DIALOG=1 -DENABLE_BACKGROUND=1 -DENABLE_PRINTING=1
-DENABLE_BASIC_PRINTING=1 -DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1
-DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_APP_LIST=1 -DENABLE_SETTINGS_APP=1
-DENABLE_SUPERVISED_USERS=1 -DENABLE_MDNS=1 -DENABLE_SERVICE_DISCOVERY=1
-DV8_USE_EXTERNAL_STARTUP_DATA -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD
-DSAFE_BROWSING_DB_LOCAL -DGL_GLEXT_PROTOTYPES -DBLINK_IMPLEMENTATION=1
-DINSIDE_BLINK -DENABLE_LAYOUT_UNIT_IN_INLINE_BOXES=0
-DWTF_USE_CONCATENATED_IMPULSE_RESPONSES=1 -DENABLE_INPUT_MULTIPLE_FIELDS_UI=1
-DWTF_USE_ICCJPEG=1 -DWTF_USE_QCMSLIB=1 -DWTF_USE_WEBAUDIO_FFMPEG=1
-DWTF_USE_DEFAULT_RENDER_THEME=1 -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0
-DU_STATIC_IMPLEMENTATION -DSK_SUPPORT_GPU=1
-DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS -DCHROME_PNG_WRITE_SUPPORT
-DPNG_USER_CONFIG -DLIBXML_STATIC -DLIBXSLT_STATIC -DUSE_LIBPCI=1
-DUSE_OPENSSL=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0
-D_FORTIFY_SOURCE=2 -Igen -I../../third_party/WebKit/Source -Igen/blink -I../..
-I../../skia/config -I../../third_party/khronos -I../../gpu -Igen/angle
-I../../third_party/angle/include -I../../third_party/ffmpeg
-I../../third_party/WebKit -I../../third_party/ots/include
-I../../third_party/zlib -I../../third_party/icu/source/i18n
-I../../third_party/icu/source/common -I../../third_party/skia/include/core
-I../../third_party/skia/include/effects -I../../third_party/skia/include/pdf
-I../../third_party/skia/include/gpu -I../../third_party/skia/include/lazy
-I../../third_party/skia/include/pathops -I../../third_party/skia/include/pipe
-I../../third_party/skia/include/ports -I../../third_party/skia/include/utils
-I../../skia/ext -I../../third_party/iccjpeg -I../../third_party/libpng
-I../../third_party/libwebp -I../../third_party/libxml/linux/include
-I../../third_party/libxml/src/include -I../../third_party/libxslt
-I../../third_party/npapi -I../../third_party/npapi/bindings
-I../../third_party/qcms/src -I../../third_party/snappy/linux
-I../../third_party/snappy/src -I../../v8/include -fstack-protector
--param=ssp-buffer-size=4 -pthread -fno-strict-aliasing -Wall -Wno-extra
-Wno-unused-parameter -Wno-missing-field-initializers -fvisibility=hidden -pipe
-fPIC -Wno-unused-local-typedefs -fno-strict-aliasing -I/usr/include/freetype2
-I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/freetype2
-I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0
-I/usr/lib64/glib-2.0/include -pthread -I/usr/include/glib-2.0
-I/usr/lib64/glib-2.0/include -m64 -march=x86-64 -O3 -fno-ident -fdata-sections
-ffunction-sections -funwind-tables -march=native
-fno-delete-null-pointer-checks -fno-exceptions -fno-rtti
-fno-threadsafe-statics -fvisibility-inlines-hidden -std=gnu++11 -Wno-narrowing
-c gen/blink/bindings/core/v8/V8GeneratedCoreBindings03.cpp -o
obj/third_party/WebKit/Source/core/gen/blink/bindings/core/v8/webcore_generated.V8GeneratedCoreBindings03.o 

In file included from ../../third_party/skia/include/core/SkPathRef.h:17:0,
                 from ../../third_party/skia/include/core/SkPath.h:12,
                 from
../../third_party/WebKit/Source/platform/graphics/GraphicsTypes.h:32,
                 from
../../third_party/WebKit/Source/platform/graphics/Image.h:33,
                 from
../../third_party/WebKit/Source/core/style/StyleImage.h:31,
                 from
../../third_party/WebKit/Source/core/style/NinePieceImage.h:30,
                 from
../../third_party/WebKit/Source/core/style/ComputedStyle.h:38,
                 from
../../third_party/WebKit/Source/core/layout/LayoutObject.h:46,
                 from
../../third_party/WebKit/Source/core/animation/css/CSSAnimationUpdate.h:15,
                 from
../../third_party/WebKit/Source/core/animation/css/CSSAnimations.h:37,
                 from
../../third_party/WebKit/Source/core/animation/ElementAnimations.h:35,
                 from
../../third_party/WebKit/Source/core/animation/ElementAnimation.h:37,
                 from gen/blink/bindings/core/v8/V8Element.cpp:35,
                 from
gen/blink/bindings/core/v8/V8GeneratedCoreBindings03.cpp:37:
../../third_party/skia/include/core/SkTDArray.h: In member function âvoid
SkTDArray<T>::pop(T*)â:
../../third_party/skia/include/core/SkTDArray.h:270:0: warning: statement is
indented as if it were guarded by... [-Wmisleading-indentation]
     void     pop(T* elem) { SkASSERT(fCount > 0); if (elem) *elem =
(*this)[fCount - 1]; --fCount; }


../../third_party/skia/include/core/SkTDArray.h:270:0: note: ...this âifâ
clause, but it is not

Unfortunately when adding --save-temps, the issue vanishes.