forked from OSchip/llvm-project
29 lines
1.2 KiB
LLVM
29 lines
1.2 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 }, { i32, i32 } addrspace(1) * @struct, i32 0, i32 0)
|
|
%B = load i32, i32 addrspace(1) * getelementptr ([ 2 x i32 ], [ 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 ], [ 2 x i32 ] addrspace(1) * @array, i32 0, i32 0)
|
|
store i32 %R, i32 addrspace(1) * getelementptr ({ i32, i32 }, { i32, i32 } addrspace(1) * @struct, i32 0, i32 0)
|
|
ret void
|
|
}
|
|
|
|
|