diff options
Diffstat (limited to 'test/Transforms/GlobalOpt/2008-07-17-addrspace.ll')
| -rw-r--r-- | test/Transforms/GlobalOpt/2008-07-17-addrspace.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/2008-07-17-addrspace.ll b/test/Transforms/GlobalOpt/2008-07-17-addrspace.ll new file mode 100644 index 0000000..735a84d --- /dev/null +++ b/test/Transforms/GlobalOpt/2008-07-17-addrspace.ll @@ -0,0 +1,28 @@ +; 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: llvm-as < %s | opt -globalopt | llvm-dis > %t +; Check that the new global values still have their address space +; RUN: cat %t | grep global.*addrspace + +@struct = internal addrspace(1) global { i32, i32 } zeroinitializer +@array = internal addrspace(1) global [ 2 x i32 ] zeroinitializer + +define i32 @foo() { + %A = load i32 addrspace(1) * getelementptr ({ i32, i32 } addrspace(1) * @struct, i32 0, i32 0) + %B = load 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 +} + + |
