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| author | Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> | 2023-10-16 13:39:04 +0200 |
|---|---|---|
| committer | Stefan Schulze Frielinghaus <stefansf@linux.ibm.com> | 2023-10-16 13:39:04 +0200 |
| commit | d6ebe61889732afaf2e8fbf1c1fcc4a5486a5f93 (patch) | |
| tree | 79cf803b97440755cccba35e1d61cc100cd4dbcc | |
| parent | a5fe9f063de64aa2755c9ae9e90ed1ff64ee0f47 (diff) | |
| download | gcc-d6ebe61889732afaf2e8fbf1c1fcc4a5486a5f93.zip gcc-d6ebe61889732afaf2e8fbf1c1fcc4a5486a5f93.tar.gz gcc-d6ebe61889732afaf2e8fbf1c1fcc4a5486a5f93.tar.bz2 | |
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.
| -rw-r--r-- | gcc/config/s390/vector.md | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md index f0e9ed3..7d1eb36 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) |