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