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[Bug target/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 09:22:28 +0000
- Subject: [Bug target/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
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-06-02
Component|rtl-optimization |target
Ever confirmed|0 |1
--- Comment #3 from UroÅ Bizjak <ubizjak at gmail dot com> ---
Patch in testing:
--cut here--
Index: i386.c
===================================================================
--- i386.c (revision 211125)
+++ i386.c (working copy)
@@ -21541,7 +21541,7 @@ ix86_expand_vec_perm (rtx operands[])
t1 = gen_reg_rtx (V32QImode);
t2 = gen_reg_rtx (V32QImode);
t3 = gen_reg_rtx (V32QImode);
- vt2 = GEN_INT (128);
+ vt2 = GEN_INT (-128);
for (i = 0; i < 32; i++)
vec[i] = vt2;
vt = gen_rtx_CONST_VECTOR (V32QImode, gen_rtvec_v (32, vec));
--cut here--