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tree-optimization/95403 - guard vect_init_vector_1 against NULL stmt_info

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2020-05-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/95403
	* tree-vect-stmts.c (vect_init_vector_1): Guard against NULL
	stmt_vinfo.

	* gfortran.dg/vect/pr95403.f: New testcase.
This commit is contained in:
Richard Biener 2020-05-29 10:16:38 +02:00
parent 3d0675f3bb
commit 233ecb5e2c
2 changed files with 17 additions and 1 deletions
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16
gcc/testsuite/gfortran.dg/vect/pr95403.f Normal file
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@ -0,0 +1,16 @@
! { dg-do compile }
subroutine deuldlag(xi,et,ze,xlag,xeul,xj,xs)
real*8 shp(3,20),xs(3,3),xlag(3,20),xeul(3,20)
do i=1,3
do j=1,3
enddo
enddo
do i=1,3
do j=1,3
xs(i,j)=0.d0
do k=1,20
xs(i,j)=xs(i,j)+xeul(i,k)*shp(j,k)
enddo
enddo
enddo
end

2
gcc/tree-vect-stmts.c
View file

@ -1330,7 +1330,7 @@ vect_init_vector_1 (vec_info *vinfo, stmt_vec_info stmt_vinfo, gimple *new_stmt,
basic_block new_bb;
edge pe;
if (nested_in_vect_loop_p (loop, stmt_vinfo))
if (stmt_vinfo && nested_in_vect_loop_p (loop, stmt_vinfo))
loop = loop->inner;
pe = loop_preheader_edge (loop);