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[Bug middle-end/47046] New: gcc.target/i386/sse4_1-movntdqa.c ICEs with -fgraphite-identity


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47046

           Summary: gcc.target/i386/sse4_1-movntdqa.c ICEs with
                    -fgraphite-identity
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: howarth@nitro.med.uc.edu


The gcc.target/i386/sse4_1-movntdqa.c test case ICEs the compiler when
-fgraphite identity is used.

Executing on host: /Users/howarth/darwin_objdir/gcc/xgcc
-B/Users/howarth/darwin_objdir/gcc/
/Users/howarth/gcc/gcc/testsuite/gcc.target/i386/sse4_1-movntdqa.c   -O2
-msse4.1  -lm   -fgraphite-identity -o ./sse4_1-movntdqa.exe    (timeout = 300)
/Users/howarth/gcc/gcc/testsuite/gcc.target/i386/sse4_1-movntdqa.c: In function
'sse4_1_test':
/Users/howarth/gcc/gcc/testsuite/gcc.target/i386/sse4_1-movntdqa.c:34:1:
internal compiler error: in rename_uses, at sese.c:544

This backtraces as...

Breakpoint 1, fancy_abort (file=0x1009aeb60 "../../gcc/gcc/sese.c", line=544,
function=0x100a58414 "rename_uses") at ../../gcc/gcc/diagnostic.c:893
893      internal_error ("in %s, at %s:%d", function, trim_filename (file),
line);
(gdb) bt
#0  fancy_abort (file=0x1009aeb60 "../../gcc/gcc/sese.c", line=544,
function=0x100a58414 "rename_uses") at ../../gcc/gcc/diagnostic.c:893
#1  0x0000000100666c95 in copy_bb_and_scalar_dependences (bb=<value temporarily
unavailable, due to optimizations>, region=0x143133ae0, next_e=<value
temporarily unavailable, due to optimizations>, iv_map=0x14313f560) at
../../gcc/gcc/sese.c:543
(gdb) 

on x86_64-apple-darwin10 using r168197.

Using built-in specs.
COLLECT_GCC=dist/bin/gcc
COLLECT_LTO_WRAPPER=/Users/howarth/dist/libexec/gcc/x86_64-apple-darwin10.5.0/4.6.0/lto-wrapper
Target: x86_64-apple-darwin10.5.0
Configured with: ../gcc/configure --enable-checking=yes
--prefix=/Users/howarth/dist --with-gmp=/sw --with-ppl=/sw --with-cloog=/sw
--with-mpc=/sw --with-libiconv-prefix=/sw --with-system-zlib
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib
--enable-languages=c --enable-checking=yes
Thread model: posix
gcc version 4.6.0 20101223 (experimental) (GCC)


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