Store <64 x i1> generates incorrect code

[aqjune]

Bugzilla Link	30615
Version	trunk
OS	Linux
Blocks	#30613
Attachments	Three files (two .c files and one .ll file) that show buggy behavior.
CC	@hfinkel,@aqjune,@nunoplopes,@sanjoy

Extended Description

store <64 x i1> %1, <64 x i1>* ptr generates incorrect code.

I attach the source code. I compiled these files with

clang -O2 -c -o main.o main.c
clang -O2 -c -o visitelem.o visitelem.c

llc -filetype=obj -o loadval.o loadval.ll
gcc loadval.o main.o visitelem.o -o main

./main

Without store <64 x i1> %1, <64 x i1>* @&#8203;globalvar, align 8, in loadval.ll, it prints

visitelem : 1111
visitelem : 1111
visitelem : 0
visitelem : 0

However with the store it prints

visitelem : 0
visitelem : 0
visitelem : 0
visitelem : 0

even if %ptr and @globalvar points to distinct address.

[RKSimon]

mentioned in issue #30613