173 lines
7.4 KiB
LLVM
173 lines
7.4 KiB
LLVM
; RUN: opt -safepoint-ir-verifier-print-only -verify-safepoint-ir -S %s 2>&1 | FileCheck %s
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define i8 addrspace(1)* @test.not.ok.0(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test.not.ok.0
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %merge
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right:
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br label %merge
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merge:
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; CHECK: Illegal use of unrelocated value found!
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; CHECK-NEXT: Def: %val = phi i8 addrspace(1)* [ %arg, %left ], [ %arg, %right ]
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; CHECK-NEXT: Use: ret i8 addrspace(1)* %val
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%val = phi i8 addrspace(1)* [ %arg, %left ], [ %arg, %right ]
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ret i8 addrspace(1)* %val
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}
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define i8 addrspace(1)* @test.not.ok.1(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test.not.ok.1
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %merge
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right:
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br label %merge
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merge:
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; CHECK: Illegal use of unrelocated value found!
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; CHECK-NEXT: Def: %val = phi i8 addrspace(1)* [ %arg, %left ], [ null, %right ]
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; CHECK-NEXT: Use: ret i8 addrspace(1)* %val
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%val = phi i8 addrspace(1)* [ %arg, %left ], [ null, %right ]
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ret i8 addrspace(1)* %val
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}
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define i8 addrspace(1)* @test.ok.0(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK: No illegal uses found by SafepointIRVerifier in: test.ok.0
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %merge
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right:
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br label %merge
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merge:
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%val = phi i8 addrspace(1)* [ null, %left ], [ null, %right]
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ret i8 addrspace(1)* %val
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}
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define i8 addrspace(1)* @test.ok.1(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK: No illegal uses found by SafepointIRVerifier in: test.ok.1
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bci_0:
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br i1 undef, label %left, label %right
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left:
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call void @not_statepoint()
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br label %merge
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right:
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br label %merge
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merge:
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%val = phi i8 addrspace(1)* [ %arg, %left ], [ %arg, %right]
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ret i8 addrspace(1)* %val
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}
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; It should be allowed to compare poisoned ptr with null.
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define void @test.poisoned.cmp.ok(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test.poisoned.cmp.ok
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0, i8 addrspace(1)* %arg , i32 -1, i32 0, i32 0, i32 0)
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%arg.relocated = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %safepoint_token, i32 7, i32 7) ; arg, arg
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br label %merge
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right:
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%safepoint_token2 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0, i8 addrspace(1)* %arg , i32 -1, i32 0, i32 0, i32 0)
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br label %merge
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merge:
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; CHECK: No illegal uses found by SafepointIRVerifier in: test.poisoned.cmp.ok
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%val.poisoned = phi i8 addrspace(1)* [ %arg.relocated, %left ], [ %arg, %right ]
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%c = icmp eq i8 addrspace(1)* %val.poisoned, null
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ret void
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}
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; It is illegal to compare poisoned ptr and relocated.
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define void @test.poisoned.cmp.fail.0(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test.poisoned.cmp.fail.0
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0, i8 addrspace(1)* %arg , i32 -1, i32 0, i32 0, i32 0)
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%arg.relocated = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %safepoint_token, i32 7, i32 7) ; arg, arg
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br label %merge
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right:
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%safepoint_token2 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0, i8 addrspace(1)* %arg , i32 -1, i32 0, i32 0, i32 0)
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%arg.relocated2 = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %safepoint_token2, i32 7, i32 7) ; arg, arg
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br label %merge
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merge:
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; CHECK: Illegal use of unrelocated value found!
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; CHECK-NEXT: Def: %val.poisoned = phi i8 addrspace(1)* [ %arg.relocated, %left ], [ %arg, %right ]
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; CHECK-NEXT: Use: %c = icmp eq i8 addrspace(1)* %val.poisoned, %val
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%val.poisoned = phi i8 addrspace(1)* [ %arg.relocated, %left ], [ %arg, %right ]
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%val = phi i8 addrspace(1)* [ %arg.relocated, %left ], [ %arg.relocated2, %right ]
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%c = icmp eq i8 addrspace(1)* %val.poisoned, %val
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ret void
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}
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; It is illegal to compare poisoned ptr and unrelocated.
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define void @test.poisoned.cmp.fail.1(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test.poisoned.cmp.fail.1
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0, i8 addrspace(1)* %arg , i32 -1, i32 0, i32 0, i32 0)
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%arg.relocated = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %safepoint_token, i32 7, i32 7) ; arg, arg
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br label %merge
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right:
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%safepoint_token2 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 0, i8 addrspace(1)* %arg , i32 -1, i32 0, i32 0, i32 0)
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%arg.relocated2 = call i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %safepoint_token2, i32 7, i32 7) ; arg, arg
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br label %merge
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merge:
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; CHECK: Illegal use of unrelocated value found!
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; CHECK-NEXT: Def: %val.poisoned = phi i8 addrspace(1)* [ %arg.relocated, %left ], [ %arg, %right ]
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; CHECK-NEXT: Use: %c = icmp eq i8 addrspace(1)* %val.poisoned, %arg
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%val.poisoned = phi i8 addrspace(1)* [ %arg.relocated, %left ], [ %arg, %right ]
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%c = icmp eq i8 addrspace(1)* %val.poisoned, %arg
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ret void
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}
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; It should be allowed to compare unrelocated phi with unrelocated value.
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define void @test.unrelocated-phi.cmp.ok(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test.unrelocated-phi.cmp.ok
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bci_0:
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br i1 undef, label %left, label %right
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left:
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%safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* undef, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0)
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br label %merge
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right:
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br label %merge
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merge:
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; CHECK: No illegal uses found by SafepointIRVerifier in: test.unrelocated-phi.cmp.ok
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%val.unrelocated = phi i8 addrspace(1)* [ %arg, %left ], [ null, %right ]
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%c = icmp eq i8 addrspace(1)* %val.unrelocated, %arg
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ret void
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}
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declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
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declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32)
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declare void @not_statepoint()
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