forked from OSchip/llvm-project
86 lines
3.3 KiB
LLVM
86 lines
3.3 KiB
LLVM
; RUN: opt %s -rewrite-statepoints-for-gc -S | FileCheck %s
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define i64 addrspace(1)* @test(<2 x i64 addrspace(1)*> %vec, i32 %idx) gc "statepoint-example" {
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; CHECK-LABEL: @test
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; CHECK: extractelement
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; CHECK: extractelement
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; CHECK: statepoint
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; CHECK: gc.relocate
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; CHECK-DAG: ; (%base_ee, %base_ee)
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; CHECK: gc.relocate
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; CHECK-DAG: ; (%base_ee, %obj)
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; Note that the second extractelement is actually redundant here. A correct output would
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; be to reuse the existing obj as a base since it is actually a base pointer.
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entry:
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%obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx
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%safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
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ret i64 addrspace(1)* %obj
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}
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define i64 addrspace(1)* @test2(<2 x i64 addrspace(1)*>* %ptr, i1 %cnd, i32 %idx1, i32 %idx2)
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gc "statepoint-example" {
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; CHECK-LABEL: test2
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entry:
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br i1 %cnd, label %taken, label %untaken
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taken:
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%obja = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
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br label %merge
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untaken:
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%objb = load <2 x i64 addrspace(1)*>, <2 x i64 addrspace(1)*>* %ptr
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br label %merge
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merge:
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%vec = phi <2 x i64 addrspace(1)*> [%obja, %taken], [%objb, %untaken]
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br i1 %cnd, label %taken2, label %untaken2
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taken2:
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%obj0 = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx1
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br label %merge2
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untaken2:
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%obj1 = extractelement <2 x i64 addrspace(1)*> %vec, i32 %idx2
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br label %merge2
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merge2:
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; CHECK-LABEL: merge2:
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; CHECK-NEXT: %obj = phi i64 addrspace(1)*
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; CHECK-NEXT: statepoint
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; CHECK: gc.relocate
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; CHECK-DAG: ; (%obj, %obj)
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%obj = phi i64 addrspace(1)* [%obj0, %taken2], [%obj1, %untaken2]
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%safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
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ret i64 addrspace(1)* %obj
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}
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define i64 addrspace(1)* @test3(i64 addrspace(1)* %ptr)
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gc "statepoint-example" {
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; CHECK-LABEL: test3
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entry:
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%vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %ptr, i32 0
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%obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
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; CHECK: insertelement
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; CHECK: extractelement
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; CHECK: statepoint
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; CHECK: gc.relocate
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; CHECK-DAG: ; (%ptr, %obj)
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%safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
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ret i64 addrspace(1)* %obj
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}
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define i64 addrspace(1)* @test4(i64 addrspace(1)* %ptr)
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gc "statepoint-example" {
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; CHECK-LABEL: test4
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entry:
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%derived = getelementptr i64, i64 addrspace(1)* %ptr, i64 16
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%veca = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %derived, i32 0
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%vec = insertelement <2 x i64 addrspace(1)*> %veca, i64 addrspace(1)* %ptr, i32 1
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%obj = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
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; CHECK: statepoint
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; CHECK: gc.relocate
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; CHECK-DAG: ; (%ptr, %obj)
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; CHECK: gc.relocate
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; CHECK-DAG: ; (%ptr, %ptr)
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%safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0)
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ret i64 addrspace(1)* %obj
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}
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declare void @do_safepoint()
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declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
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