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* [Bug rtl-optimization/44788] New: [regression]internal compiler error: in reload_cse_simplify_operands, at postreload.c:395
@ 2010-07-02 17:39 jingyu at google dot com
2010-07-02 21:07 ` [Bug rtl-optimization/44788] " rearnsha at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: jingyu at google dot com @ 2010-07-02 17:39 UTC (permalink / raw)
To: gcc-bugs
Revision 160947 breaks the following test case.
void joint_decode(float* mlt_buffer1, int t) {
int i;
float decode_buffer[1060];
foo(decode_buffer);
for (i=0; i<10 ; i++) {
mlt_buffer1[i] = i * decode_buffer[t];
}
}
/usr/local/install/R160947/libexec/gcc/arm-linux-androideabi/4.6.0/cc1
-fpreprocessed cook.i -fPIC -quiet -dumpbase cook.i "-march=armv7-a"
"-mfloat-abi=softfp" "-mfpu=neon" -mthumb -auxbase-strip cook.o -Os
-fno-strict-aliasing -o /tmp/ccrdKipa.s
cook.i: In function 'joint_decode':
cook.i:8:1: error: insn does not satisfy its constraints:
(insn 98 55 59 2 cook.i:6 (set (reg:SI 3 r3)
(plus:SI (mult:SI (reg/v:SI 5 r5 [orig:183 t ] [183])
(const_int 4 [0x4]))
(reg/f:SI 13 sp))) 674 {*thumb2_arith_shiftsi} (nil))
cook.i:8:1: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:395
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
I tried revision 160946 and did not see such error. The bug may not be brought
by r160947, but it was triggered.
--
Summary: [regression]internal compiler error: in
reload_cse_simplify_operands, at postreload.c:395
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jingyu at google dot com
GCC build triplet: x86_64-pc-linux-gnu
GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: arm-linux-androideabi,arm-eabi
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44788
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2010-07-02 17:39 [Bug rtl-optimization/44788] New: [regression]internal compiler error: in reload_cse_simplify_operands, at postreload.c:395 jingyu at google dot com
2010-07-02 21:07 ` [Bug rtl-optimization/44788] " rearnsha at gcc dot gnu dot org
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