[Bug target/48250] ICE in reload_cse_simplify_operands, at postreload.c:403

[ramana at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48250

--- Comment #4 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> 2011-06-04 08:22:32 UTC ---
A backport to 4.6 shows the following failures -

arm-sim: gcc.c-torture/execute/loop-ivopts-2.c compilation,  -O3
-fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler
error)
arm-sim: gcc.c-torture/execute/loop-ivopts-2.c compilation,  -O3
-fomit-frame-pointer -funroll-loops  (internal compiler error)
arm-sim: gcc.c-torture/execute/loop-ivopts-2.c compilation,  -O3
-fomit-frame-pointer  (internal compiler error)
arm-sim: gcc.c-torture/execute/loop-ivopts-2.c compilation,  -O3 -g  (internal
compiler error)
arm-sim: gcc.c-torture/execute/pr23135.c compilation,  -O1  (internal compiler
error)

 I'll dig further when I have a little more time

ackport-test-armv7aneon/gcc3/gcc/
/home/ramana/cross-build/src/gcc-workarea-2/gcc.c-torture/execute/loop-ivopts-2.c
gcc_tg.o  -w  -O3 -fomit-frame-pointer  -DSTACK_SIZE=16384       -Wl,-wrap,exit
-Wl,-wrap,_exit -Wl,-wrap,main -Wl,-wrap,abort -lm   -o
/home/ramana/cross-build/arm-none-linux-gnueabi/obj-gcc46-backport-test-armv7aneon/gcc3/gcc/testsuite/gcc2/loop-ivopts-2.x3
   (timeout = 800)
/home/ramana/cross-build/src/gcc-workarea-2/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-2.c:
In function ‘main’:
/home/ramana/cross-build/src/gcc-workarea-2/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-2.c:49:1:
error: insn does not satisfy its constraints:
(insn 123 122 67 6 (set (mem/s/c:V2SI (plus:SI (reg:SI 1 r1)
                (const_int -1016 [0xfffffffffffffc08])) [2 MEM[(unsigned
int[288] *)&l + 1032B]+0 S8 A64])
        (reg:V2SI 2 r2))
/home/ramana/cross-build/src/gcc-workarea-2/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-2.c:44
742 {*neon_movv2si}
     (nil))