From: Stefan Schulze Frielinghaus Date: Mon, 16 Oct 2023 11:39:04 +0000 (+0200) Subject: s390: Fix expander popcountv8hi2_vx X-Git-Tag: basepoints/gcc-15~5482 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6ebe61889732afaf2e8fbf1c1fcc4a5486a5f93;p=thirdparty%2Fgcc.git s390: Fix expander popcountv8hi2_vx The normal form of a CONST_INT which represents an integer of a mode with fewer bits than in HOST_WIDE_INT is sign extended. This even holds for unsigned integers. This fixes an ICE during cse1 where we bail out at rtl.h:2297 since INTVAL (x.first) == sext_hwi (INTVAL (x.first), precision) does not hold. gcc/ChangeLog: * config/s390/vector.md (popcountv8hi2_vx): Sign extend each unsigned vector element. --- diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md index f0e9ed3d263b..7d1eb36e8446 100644 --- a/gcc/config/s390/vector.md +++ b/gcc/config/s390/vector.md @@ -1154,14 +1154,14 @@ (plus:V16QI (match_dup 2) (match_dup 3))) ; Generate mask for the odd numbered byte elements (set (match_dup 3) - (const_vector:V16QI [(const_int 0) (const_int 255) - (const_int 0) (const_int 255) - (const_int 0) (const_int 255) - (const_int 0) (const_int 255) - (const_int 0) (const_int 255) - (const_int 0) (const_int 255) - (const_int 0) (const_int 255) - (const_int 0) (const_int 255)])) + (const_vector:V16QI [(const_int 0) (const_int -1) + (const_int 0) (const_int -1) + (const_int 0) (const_int -1) + (const_int 0) (const_int -1) + (const_int 0) (const_int -1) + (const_int 0) (const_int -1) + (const_int 0) (const_int -1) + (const_int 0) (const_int -1)])) ; Zero out the even indexed bytes (set (match_operand:V8HI 0 "register_operand" "=v") (and:V8HI (subreg:V8HI (match_dup 2) 0)