https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68389
Bug ID: 68389
Summary: internal compiler error: in tree_low_cst, at
tree.h:4431
Product: gcc
Version: 4.7.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ketan.surender at gmail dot com
Target Milestone: ---
Created attachment 36742
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36742&action=edit
preprocessedReproFile
For the attached file I am seeing an internal compiler error with -O3
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-ansi' '-pedantic'
'-Wno-long-long' '-fwrapv' '-fPIC' '-O3' '-D' 'MODEL=xOutOfOrderWrites_exec'
'-D' 'HAVESTDIO' '-D' 'USE_RTMODEL' '-D' 'UNIX' '-I' 'anotherPath/gccBugs' '-I'
'anotherPath/gccBugs/codegen/dll/xOutOfOrderWrites' '-I' 'aPath/extern/include'
'-I' 'aPath/simulink/include' '-I' 'aPath/rtw/c/src' '-I'
'aPath/rtw/c/src/ext_mode/common' '-I' 'aPath/rtw/c/ert' '-o'
'xOutOfOrderWrites.o' '-mtune=generic' '-march=x86-64'
/anotherAnotherPath/glnxa64/gcc-4.7.2/libexec/gcc/x86_64-unknown-linux-gnu/4.7.2/cc1
-fpreprocessed xOutOfOrderWrites.i -quiet -dumpbase xOutOfOrderWrites.c
-mtune=generic -march=x86-64 -auxbase-strip xOutOfOrderWrites.o -O3 -pedantic
-Wno-long-long -ansi -version -fwrapv -fPIC -o xOutOfOrderWrites.s
xOutOfOrderWrites.c: In function ‘xOutOfOrderWrites’:
xOutOfOrderWrites.c:222:6: internal compiler error: in tree_low_cst, at
tree.h:4431
This can be reproduced with the attached preprocessed file:
gcc -c -O3 xOutOfOrderWrites.i
GCC Version Info:
GNU C (GCC) version 4.7.2 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.7.2, GMP version 4.3.2, MPFR version 2.4.2,
MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C (GCC) version 4.7.2 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.7.2, GMP version 4.3.2, MPFR version 2.4.2,
MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: aa64e71d3fbf9c408b8b9eecd9fda662
