llvm-6502/test/Transforms/GlobalOpt/2008-07-17-addrspace.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

29 lines
1.1 KiB
LLVM

; This test lets globalopt split the global struct and array into different
; values. This used to crash, because globalopt forgot to put the new var in the
; same address space as the old one.
; RUN: opt < %s -globalopt -S > %t
; Check that the new global values still have their address space
; RUN: cat %t | grep 'addrspace.*global'
@struct = internal addrspace(1) global { i32, i32 } zeroinitializer
@array = internal addrspace(1) global [ 2 x i32 ] zeroinitializer
define i32 @foo() {
%A = load i32, i32 addrspace(1) * getelementptr ({ i32, i32 } addrspace(1) * @struct, i32 0, i32 0)
%B = load i32, i32 addrspace(1) * getelementptr ([ 2 x i32 ] addrspace(1) * @array, i32 0, i32 0)
; Use the loaded values, so they won't get removed completely
%R = add i32 %A, %B
ret i32 %R
}
; We put stores in a different function, so that the global variables won't get
; optimized away completely.
define void @bar(i32 %R) {
store i32 %R, i32 addrspace(1) * getelementptr ([ 2 x i32 ] addrspace(1) * @array, i32 0, i32 0)
store i32 %R, i32 addrspace(1) * getelementptr ({ i32, i32 } addrspace(1) * @struct, i32 0, i32 0)
ret void
}