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The full diff for the test directory may be hard to read because of the filename clash; so here's all that happened as far as the tests are concerned: ``` cd test/Transforms/RewriteStatepointsForGC git rm *ll git mv deopt-bundles/* ./ rmdir deopt-bundles find . -name '*.ll' | xargs gsed -i 's/-rs4gc-use-deopt-bundles //g' ``` llvm-svn: 259129
168 lines
6.2 KiB
LLVM
168 lines
6.2 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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call void @do_safepoint() [ "deopt"() ]
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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) 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: ; preds = %entry
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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: ; preds = %entry
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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: ; preds = %untaken, %taken
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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: ; preds = %merge
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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: ; preds = %merge
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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: ; preds = %untaken2, %taken2
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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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call void @do_safepoint() [ "deopt"() ]
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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) gc "statepoint-example" {
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; CHECK-LABEL: test3
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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: (%obj, %obj)
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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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call void @do_safepoint() [ "deopt"() ]
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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) gc "statepoint-example" {
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; CHECK-LABEL: test4
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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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; When we can optimize an extractelement from a known
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; index and avoid introducing new base pointer instructions
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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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call void @do_safepoint() [ "deopt"() ]
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ret i64 addrspace(1)* %obj
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}
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declare void @use(i64 addrspace(1)*) "gc-leaf-function"
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define void @test5(i1 %cnd, i64 addrspace(1)* %obj) gc "statepoint-example" {
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; CHECK-LABEL: @test5
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; CHECK: gc.relocate
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; CHECK-DAG: (%obj, %bdv)
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; When we fundementally have to duplicate
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entry:
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%gep = getelementptr i64, i64 addrspace(1)* %obj, i64 1
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%vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
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%bdv = extractelement <2 x i64 addrspace(1)*> %vec, i32 0
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call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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call void @use(i64 addrspace(1)* %bdv)
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ret void
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}
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define void @test6(i1 %cnd, i64 addrspace(1)* %obj, i64 %idx) gc "statepoint-example" {
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; CHECK-LABEL: @test6
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; CHECK: %gep = getelementptr i64, i64 addrspace(1)* %obj, i64 1
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; CHECK: %vec.base = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %obj, i32 0, !is_base_value !0
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; CHECK: %vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
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; CHECK: %bdv.base = extractelement <2 x i64 addrspace(1)*> %vec.base, i64 %idx, !is_base_value !0
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; CHECK: %bdv = extractelement <2 x i64 addrspace(1)*> %vec, i64 %idx
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; CHECK: gc.statepoint
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; CHECK: gc.relocate
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; CHECK-DAG: (%bdv.base, %bdv)
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; A more complicated example involving vector and scalar bases.
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; This is derived from a failing test case when we didn't have correct
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; insertelement handling.
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entry:
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%gep = getelementptr i64, i64 addrspace(1)* %obj, i64 1
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%vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
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%bdv = extractelement <2 x i64 addrspace(1)*> %vec, i64 %idx
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call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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call void @use(i64 addrspace(1)* %bdv)
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ret void
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}
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define i64 addrspace(1)* @test7(i1 %cnd, i64 addrspace(1)* %obj, i64 addrspace(1)* %obj2) gc "statepoint-example" {
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; CHECK-LABEL: @test7
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entry:
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%vec = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %obj2, i32 0
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br label %merge1
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merge1: ; preds = %merge1, %entry
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; CHECK-LABEL: merge1:
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; CHECK: vec2.base
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; CHECK: vec2
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; CHECK: gep
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; CHECK: vec3.base
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; CHECK: vec3
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%vec2 = phi <2 x i64 addrspace(1)*> [ %vec, %entry ], [ %vec3, %merge1 ]
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%gep = getelementptr i64, i64 addrspace(1)* %obj2, i64 1
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%vec3 = insertelement <2 x i64 addrspace(1)*> undef, i64 addrspace(1)* %gep, i32 0
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br i1 %cnd, label %merge1, label %next1
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next1: ; preds = %merge1
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; CHECK-LABEL: next1:
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; CHECK: bdv.base =
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; CHECK: bdv =
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%bdv = extractelement <2 x i64 addrspace(1)*> %vec2, i32 0
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br label %merge
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merge: ; preds = %merge, %next1
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; CHECK-LABEL: merge:
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; CHECK: %objb.base
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; CHECK: %objb
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; CHECK: gc.statepoint
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; CHECK: gc.relocate
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; CHECK-DAG: (%objb.base, %objb)
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%objb = phi i64 addrspace(1)* [ %obj, %next1 ], [ %bdv, %merge ]
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br i1 %cnd, label %merge, label %next
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next: ; preds = %merge
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call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret i64 addrspace(1)* %objb
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}
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declare void @do_safepoint()
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