Linaro GCC

ICE in neon_disambiguate_copy, at config/arm/arm.c:20315

Bug #885393 reported by Bernhard Rosenkraenzer
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Linaro Android
Triaged
High
Bernhard Rosenkraenzer
Linaro GCC
New
Undecided
Unassigned

Bug Description

$ /tmp/android-toolchain-eabi/bin/arm-eabi-gcc -c -march=armv7-a -mfloat-abi=softfp -mfpu=neon -mcpu=cortex-a9 -O3 -o imgconvert.o imgconvert.i
/home/vishal/SOURCE/leb-panda/external/gstreamer_aggregate/gst-plugins-base/gst/ffmpegcolorspace/imgconvert.c: In function 'yuv420p_to_yuv422':
/home/vishal/SOURCE/leb-panda/external/gstreamer_aggregate/gst-plugins-base/gst/ffmpegcolorspace/imgconvert.c:1422:1: internal compiler error: in neon_disambiguate_copy, at config/arm/arm.c:20315

Revision history for this message
Bernhard Rosenkraenzer (berolinux) wrote :
Changed in linaro-android:
status: New → Confirmed
Bernhard Rosenkraenzer (berolinux)
Changed in linaro-android:
importance: Undecided → High
assignee: nobody → Bernhard Rosenkraenzer (berolinux)
Revision history for this message
Ramana Radhakrishnan (ramana) wrote : Re: [Bug 885393] Re: ICE in neon_disambiguate_copy, at config/arm/arm.c:20315

Probably a dup of LP 809446

Ramana

Revision history for this message
Bernhard Rosenkraenzer (berolinux) wrote :
Bernhard Rosenkraenzer (berolinux)
Changed in linaro-android:
status: Confirmed → Triaged
Revision history for this message
Michael Hope (michaelh1) wrote :

Thank you for the bug report. I've confirmed this with gcc-linaro-4.6-2011.10 on ARM:

michaelh@ursa4:~/linaro/bugs$ /tools/toolchains/arch/armv7l/gcc-linaro-4.6-2011.10-armv7l-natty-cbuild186-ursa3-cortexa9r1/bin/gcc -O3 -S imgconvert.c
imgconvert.c: In function 'yuv420p_to_yuv422':
imgconvert.c:32:1: internal compiler error: in neon_disambiguate_copy, at config/arm/arm.c:20315

The work-around is to compile at -O3 or to disable the vectoriser using -fno-tree-vectorize. This fault exists but is not exposed in gcc-linaro-4.6-2011.09.

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