332 lines
13 KiB
LLVM
332 lines
13 KiB
LLVM
; RUN: opt < %s -rewrite-statepoints-for-gc -S | FileCheck %s
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; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S | FileCheck %s
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declare void @use_obj16(i16 addrspace(1)*) "gc-leaf-function"
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declare void @use_obj32(i32 addrspace(1)*) "gc-leaf-function"
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declare void @use_obj64(i64 addrspace(1)*) "gc-leaf-function"
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declare void @do_safepoint()
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define void @test_gep_const(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_gep_const
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entry:
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%ptr = getelementptr i32, i32 addrspace(1)* %base, i32 15
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; CHECK: getelementptr i32, i32 addrspace(1)* %base, i32 15
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: %base.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 7, i32 7)
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; CHECK: bitcast i8 addrspace(1)* %base.relocated to i32 addrspace(1)*
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; CHECK: getelementptr i32, i32 addrspace(1)* %base.relocated.casted, i32 15
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj32(i32 addrspace(1)* %ptr)
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ret void
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}
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define void @test_gep_idx(i32 addrspace(1)* %base, i32 %idx) gc "statepoint-example" {
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; CHECK-LABEL: test_gep_idx
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entry:
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%ptr = getelementptr i32, i32 addrspace(1)* %base, i32 %idx
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; CHECK: getelementptr
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: %base.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 7, i32 7)
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; CHECK: %base.relocated.casted = bitcast i8 addrspace(1)* %base.relocated to i32 addrspace(1)*
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; CHECK: getelementptr i32, i32 addrspace(1)* %base.relocated.casted, i32 %idx
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj32(i32 addrspace(1)* %ptr)
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ret void
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}
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define void @test_bitcast(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_bitcast
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entry:
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%ptr = bitcast i32 addrspace(1)* %base to i64 addrspace(1)*
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; CHECK: bitcast i32 addrspace(1)* %base to i64 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: %base.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 7, i32 7)
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; CHECK: %base.relocated.casted = bitcast i8 addrspace(1)* %base.relocated to i32 addrspace(1)*
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; CHECK: bitcast i32 addrspace(1)* %base.relocated.casted to i64 addrspace(1)*
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj64(i64 addrspace(1)* %ptr)
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ret void
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}
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define void @test_bitcast_bitcast(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_bitcast_bitcast
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entry:
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%ptr1 = bitcast i32 addrspace(1)* %base to i64 addrspace(1)*
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%ptr2 = bitcast i64 addrspace(1)* %ptr1 to i16 addrspace(1)*
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; CHECK: bitcast i32 addrspace(1)* %base to i64 addrspace(1)*
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; CHECK: bitcast i64 addrspace(1)* %ptr1 to i16 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: %base.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 7, i32 7)
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; CHECK: %base.relocated.casted = bitcast i8 addrspace(1)* %base.relocated to i32 addrspace(1)*
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; CHECK: bitcast i32 addrspace(1)* %base.relocated.casted to i64 addrspace(1)*
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; CHECK: bitcast i64 addrspace(1)* %ptr1.remat to i16 addrspace(1)*
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj16(i16 addrspace(1)* %ptr2)
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ret void
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}
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define void @test_addrspacecast_addrspacecast(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_addrspacecast_addrspacecast
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entry:
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%ptr1 = addrspacecast i32 addrspace(1)* %base to i32*
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%ptr2 = addrspacecast i32* %ptr1 to i32 addrspace(1)*
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; CHECK: addrspacecast i32 addrspace(1)* %base to i32*
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; CHECK: addrspacecast i32* %ptr1 to i32 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: %ptr2.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 8, i32 7)
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; CHECK: %ptr2.relocated.casted = bitcast i8 addrspace(1)* %ptr2.relocated to i32 addrspace(1)*
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; CHECK: %base.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 8, i32 8)
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; CHECK: %base.relocated.casted = bitcast i8 addrspace(1)* %base.relocated to i32 addrspace(1)*
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj32(i32 addrspace(1)* %ptr2)
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ret void
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}
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define void @test_bitcast_gep(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_bitcast_gep
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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; CHECK: getelementptr
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; CHECK: bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: bitcast
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call void @use_obj32(i32 addrspace(1)* %base)
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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ret void
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}
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define void @test_intersecting_chains(i32 addrspace(1)* %base, i32 %idx) gc "statepoint-example" {
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; CHECK-LABEL: test_intersecting_chains
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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; CHECK: getelementptr
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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; CHECK: bitcast
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%ptr.cast2 = bitcast i32 addrspace(1)* %ptr.gep to i16 addrspace(1)*
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; CHECK: bitcast
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: getelementptr
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: bitcast
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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}
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define void @test_cost_threshold(i32 addrspace(1)* %base, i32 %idx1, i32 %idx2, i32 %idx3) gc "statepoint-example" {
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; CHECK-LABEL: test_cost_threshold
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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; CHECK: getelementptr
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%ptr.gep2 = getelementptr i32, i32 addrspace(1)* %ptr.gep, i32 %idx1
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; CHECK: getelementptr
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%ptr.gep3 = getelementptr i32, i32 addrspace(1)* %ptr.gep2, i32 %idx2
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; CHECK: getelementptr
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%ptr.gep4 = getelementptr i32, i32 addrspace(1)* %ptr.gep3, i32 %idx3
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; CHECK: getelementptr
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep4 to i64 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: gc.relocate
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; CHECK: bitcast
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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ret void
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}
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define void @test_two_derived(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_two_derived
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entry:
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%ptr = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr2 = getelementptr i32, i32 addrspace(1)* %base, i32 12
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; CHECK: getelementptr
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; CHECK: getelementptr
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: getelementptr
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call void @use_obj32(i32 addrspace(1)* %ptr)
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call void @use_obj32(i32 addrspace(1)* %ptr2)
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ret void
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}
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define void @test_gep_smallint_array([3 x i32] addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_gep_smallint_array
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entry:
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%ptr = getelementptr [3 x i32], [3 x i32] addrspace(1)* %base, i32 0, i32 2
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; CHECK: getelementptr
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: getelementptr
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call void @use_obj32(i32 addrspace(1)* %ptr)
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ret void
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}
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declare i32 @fake_personality_function()
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define void @test_invoke(i32 addrspace(1)* %base) gc "statepoint-example" personality i32 ()* @fake_personality_function {
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; CHECK-LABEL: test_invoke
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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; CHECK: getelementptr
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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; CHECK: bitcast
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%ptr.cast2 = bitcast i32 addrspace(1)* %ptr.gep to i16 addrspace(1)*
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; CHECK: bitcast
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invoke void @do_safepoint() [ "deopt"() ]
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to label %normal unwind label %exception
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normal:
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; CHECK: normal:
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: bitcast
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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exception:
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; CHECK: exception:
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%landing_pad4 = landingpad token
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cleanup
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: bitcast
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; CHECK: getelementptr
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; CHECK: bitcast
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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}
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define void @test_loop(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_loop
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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; CHECK: getelementptr
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br label %loop
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loop: ; preds = %loop, %entry
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; CHECK: phi i32 addrspace(1)* [ %ptr.gep, %entry ], [ %ptr.gep.remat, %loop ]
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; CHECK: phi i32 addrspace(1)* [ %base, %entry ], [ %base.relocated.casted, %loop ]
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call void @use_obj32(i32 addrspace(1)* %ptr.gep)
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: getelementptr
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br label %loop
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}
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define void @test_too_long(i32 addrspace(1)* %base) gc "statepoint-example" {
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; CHECK-LABEL: test_too_long
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entry:
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %base, i32 15
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%ptr.gep1 = getelementptr i32, i32 addrspace(1)* %ptr.gep, i32 15
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%ptr.gep2 = getelementptr i32, i32 addrspace(1)* %ptr.gep1, i32 15
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%ptr.gep3 = getelementptr i32, i32 addrspace(1)* %ptr.gep2, i32 15
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%ptr.gep4 = getelementptr i32, i32 addrspace(1)* %ptr.gep3, i32 15
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%ptr.gep5 = getelementptr i32, i32 addrspace(1)* %ptr.gep4, i32 15
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%ptr.gep6 = getelementptr i32, i32 addrspace(1)* %ptr.gep5, i32 15
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%ptr.gep7 = getelementptr i32, i32 addrspace(1)* %ptr.gep6, i32 15
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%ptr.gep8 = getelementptr i32, i32 addrspace(1)* %ptr.gep7, i32 15
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%ptr.gep9 = getelementptr i32, i32 addrspace(1)* %ptr.gep8, i32 15
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%ptr.gep10 = getelementptr i32, i32 addrspace(1)* %ptr.gep9, i32 15
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%ptr.gep11 = getelementptr i32, i32 addrspace(1)* %ptr.gep10, i32 15
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: gc.relocate
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; CHECK: bitcast
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; CHECK: gc.relocate
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; CHECK: bitcast
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call void @use_obj32(i32 addrspace(1)* %ptr.gep11)
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ret void
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}
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declare i32 addrspace(1)* @new_instance() nounwind "gc-leaf-function"
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; remat the gep in presence of base pointer which is a phi node.
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; FIXME: We should remove the extra basephi.base as well.
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define void @contains_basephi(i1 %cond) gc "statepoint-example" {
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; CHECK-LABEL: contains_basephi
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entry:
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%base1 = call i32 addrspace(1)* @new_instance()
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%base2 = call i32 addrspace(1)* @new_instance()
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br i1 %cond, label %here, label %there
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here:
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br label %merge
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there:
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br label %merge
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merge:
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; CHECK: %basephi.base = phi i32 addrspace(1)* [ %base1, %here ], [ %base2, %there ], !is_base_value !0
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; CHECK: %basephi = phi i32 addrspace(1)* [ %base1, %here ], [ %base2, %there ]
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; CHECK: %ptr.gep = getelementptr i32, i32 addrspace(1)* %basephi, i32 15
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; CHECK: %statepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint
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; CHECK: %basephi.base.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token, i32 7, i32 7) ; (%basephi.base, %basephi.base)
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; CHECK: %basephi.base.relocated.casted = bitcast i8 addrspace(1)* %basephi.base.relocated to i32 addrspace(1)*
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; CHECK: %ptr.gep.remat = getelementptr i32, i32 addrspace(1)* %basephi.base.relocated.casted, i32 15
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; CHECK: call void @use_obj32(i32 addrspace(1)* %ptr.gep.remat)
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%basephi = phi i32 addrspace(1)* [ %base1, %here ], [ %base2, %there ]
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %basephi, i32 15
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call void @do_safepoint() ["deopt"() ]
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call void @use_obj32(i32 addrspace(1)* %ptr.gep)
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ret void
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}
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define void @test_intersecting_chains_with_phi(i1 %cond) gc "statepoint-example" {
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; CHECK-LABEL: test_intersecting_chains_with_phi
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entry:
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%base1 = call i32 addrspace(1)* @new_instance()
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%base2 = call i32 addrspace(1)* @new_instance()
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br i1 %cond, label %here, label %there
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here:
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br label %merge
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there:
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br label %merge
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merge:
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%basephi = phi i32 addrspace(1)* [ %base1, %here ], [ %base2, %there ]
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%ptr.gep = getelementptr i32, i32 addrspace(1)* %basephi, i32 15
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%ptr.cast = bitcast i32 addrspace(1)* %ptr.gep to i64 addrspace(1)*
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%ptr.cast2 = bitcast i32 addrspace(1)* %ptr.gep to i16 addrspace(1)*
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call void @do_safepoint() [ "deopt"() ]
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; CHECK: statepoint
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; CHECK: %ptr.gep.remat1 = getelementptr i32, i32 addrspace(1)* %basephi.base.relocated.casted, i32 15
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; CHECK: %ptr.cast.remat = bitcast i32 addrspace(1)* %ptr.gep.remat1 to i64 addrspace(1)*
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; CHECK: %ptr.gep.remat = getelementptr i32, i32 addrspace(1)* %basephi.base.relocated.casted, i32 15
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; CHECK: %ptr.cast2.remat = bitcast i32 addrspace(1)* %ptr.gep.remat to i16 addrspace(1)*
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; CHECK: call void @use_obj64(i64 addrspace(1)* %ptr.cast.remat)
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; CHECK: call void @use_obj16(i16 addrspace(1)* %ptr.cast2.remat)
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call void @use_obj64(i64 addrspace(1)* %ptr.cast)
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call void @use_obj16(i16 addrspace(1)* %ptr.cast2)
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ret void
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}
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