https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79911
Bug ID: 79911
Summary: VEC_SELECT bugs in arm neon patterns
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
Target Milestone: ---
I've recently posted http://gcc.gnu.org/ml/gcc-patches/2017-03/msg00183.html
with some extra verification of sanity of md patterns (based on assertions
simplify-rtx.c does for VEC_SELECT as well as documentation requiring it).
With this patch make s-recog fails on arm-linux:
../../gcc/config/arm/neon.md:1338:1: element mode mismatch between vec_select
HImode and its operand QImode
../../gcc/config/arm/neon.md:1338:1: element mode mismatch between vec_select
SImode and its operand QImode
../../gcc/config/arm/neon.md:1338:1: element mode mismatch between vec_select
QImode and its operand HImode
../../gcc/config/arm/neon.md:1338:1: element mode mismatch between vec_select
SImode and its operand HImode
../../gcc/config/arm/neon.md:1338:1: element mode mismatch between vec_select
QImode and its operand SImode
../../gcc/config/arm/neon.md:1338:1: element mode mismatch between vec_select
HImode and its operand SImode
../../gcc/config/arm/neon.md:1353:1: element mode mismatch between vec_select
HImode and its operand QImode
../../gcc/config/arm/neon.md:1353:1: element mode mismatch between vec_select
SImode and its operand QImode
../../gcc/config/arm/neon.md:1353:1: element mode mismatch between vec_select
QImode and its operand HImode
../../gcc/config/arm/neon.md:1353:1: element mode mismatch between vec_select
SImode and its operand HImode
../../gcc/config/arm/neon.md:1353:1: element mode mismatch between vec_select
QImode and its operand SImode
../../gcc/config/arm/neon.md:1353:1: element mode mismatch between vec_select
HImode and its operand SImode
../../gcc/config/arm/neon.md:1407:1: element mode mismatch between vec_select
HImode and its operand QImode
../../gcc/config/arm/neon.md:1407:1: element mode mismatch between vec_select
SImode and its operand QImode
../../gcc/config/arm/neon.md:1407:1: element mode mismatch between vec_select
QImode and its operand HImode
../../gcc/config/arm/neon.md:1407:1: element mode mismatch between vec_select
SImode and its operand HImode
../../gcc/config/arm/neon.md:1407:1: element mode mismatch between vec_select
QImode and its operand SImode
../../gcc/config/arm/neon.md:1407:1: element mode mismatch between vec_select
HImode and its operand SImode
../../gcc/config/arm/neon.md:1422:1: element mode mismatch between vec_select
HImode and its operand QImode
../../gcc/config/arm/neon.md:1422:1: element mode mismatch between vec_select
SImode and its operand QImode
../../gcc/config/arm/neon.md:1422:1: element mode mismatch between vec_select
QImode and its operand HImode
../../gcc/config/arm/neon.md:1422:1: element mode mismatch between vec_select
SImode and its operand HImode
../../gcc/config/arm/neon.md:1422:1: element mode mismatch between vec_select
QImode and its operand SImode
../../gcc/config/arm/neon.md:1422:1: element mode mismatch between vec_select
HImode and its operand SImode
