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[Bug rtl-optimization/61239] [4.10 Regression]: ICE in decompose, at rtl.h when compiling vshuf-v16hi.c using -mavx2
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 02 Jun 2014 08:52:12 +0000
- Subject: [Bug rtl-optimization/61239] [4.10 Regression]: ICE in decompose, at rtl.h when compiling vshuf-v16hi.c using -mavx2
- Auto-submitted: auto-generated
- References: <bug-61239-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61239
UroÅ Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from UroÅ Bizjak <ubizjak at gmail dot com> ---
Some more digging:
(gdb) up
#10 0x0000000000ee741e in ix86_expand_vec_perm (operands=0x7fffffffaf30) at
../../gcc-svn/trunk/gcc/config/i386/i386.c:21548
21548 vt = force_reg (V32QImode, vt);
(gdb) p debug_rtx (vt)
(const_vector:V32QI [
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
(const_int 128 [0x80])
])
$11 = void
These don't look like valid QImode elements. Jakub?