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https://github.com/c64scene-ar/llvm-6502.git
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38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
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; RUN: opt %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
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; CHECK: derived %next_x base %base_obj_x
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; CHECK: derived %next_y base %base_obj_y
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; CHECK: derived %next base %base_phi
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declare i1 @runtime_value()
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declare void @do_safepoint()
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define void @select_of_phi(i64 addrspace(1)* %base_obj_x, i64 addrspace(1)* %base_obj_y) gc "statepoint-example" {
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entry:
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br label %loop
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loop:
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%current_x = phi i64 addrspace(1)* [ %base_obj_x , %entry ], [ %next_x, %merge ]
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%current_y = phi i64 addrspace(1)* [ %base_obj_y , %entry ], [ %next_y, %merge ]
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%current = phi i64 addrspace(1)* [ null , %entry ], [ %next , %merge ]
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%condition = call i1 @runtime_value()
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%next_x = getelementptr i64, i64 addrspace(1)* %current_x, i32 1
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%next_y = getelementptr i64, i64 addrspace(1)* %current_y, i32 1
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br i1 %condition, label %true, label %false
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true:
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br label %merge
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false:
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br label %merge
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merge:
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%next = phi i64 addrspace(1)* [ %next_x, %true ], [ %next_y, %false ]
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%safepoint_token = call i32 (void ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()* @do_safepoint, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %loop
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}
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declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(void ()*, i32, i32, ...)
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