https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114802
Bug ID: 114802
Summary: FAIL: gcc.dg/tree-ssa/forwprop-40.c and forwprop-41.c
on s390
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: stefansf at gcc dot gnu.org
Target Milestone: ---
Target: s390*-*-*
FAIL: gcc.dg/tree-ssa/forwprop-40.c scan-tree-dump-times optimized
"BIT_FIELD_REF" 0
FAIL: gcc.dg/tree-ssa/forwprop-40.c scan-tree-dump-times optimized
"BIT_INSERT_EXPR" 0
FAIL: gcc.dg/tree-ssa/forwprop-41.c scan-tree-dump-times optimized
"BIT_FIELD_REF" 0
FAIL: gcc.dg/tree-ssa/forwprop-41.c scan-tree-dump-times optimized
"BIT_INSERT_EXPR" 1
Originating from PR93080 the tests fail on s390 since can_vec_perm_const_p
fails which r14-3381-g27de9aa152141e aims for and therefore the bit insert/ref
survive. Thus, currently for forwprop-40.c we emit:
g:
vlgvf %r1,%v24,0
vlvgf %v24,%r1,0
br %r14
and for forwprop-41.c:
g:
vlgvf %r1,%v24,2
vlvgf %v24,%r1,2
vlvgf %v24,%r2,1
br %r14
