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33d2c94345
SafepointIRVerifier crashed while traversing blocks without a DomTreeNode. This could happen with a custom pipeline or when some optional passes were skipped by OptBisect. SafepointIRVerifier is fixed to traverse basic blocks that are reachable from entry. Test are added. Patch Author: Yevgeny Rouban! Reviewers: anna, reames, dneilson, DaniilSuchkov, skatkov Reviewed By: reames Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D47011 llvm-svn: 333063
46 lines
2.0 KiB
LLVM
46 lines
2.0 KiB
LLVM
; RUN: opt -safepoint-ir-verifier-print-only -verify-safepoint-ir -S %s 2>&1 | FileCheck %s
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; This test checks that StatepointIRVerifier does not crash on
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; a CFG with unreachable blocks.
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%jObject = type { [8 x i8] }
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define %jObject addrspace(1)* @test(%jObject addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test
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; CHECK-NEXT: No illegal uses found by SafepointIRVerifier in: test
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%safepoint_token3 = tail call token (i64, i32, double (double)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_f64f64f(i64 0, i32 0, double (double)* undef, i32 1, i32 0, double undef, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0, %jObject addrspace(1)* %arg)
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%arg2.relocated4 = call coldcc %jObject addrspace(1)* @llvm.experimental.gc.relocate.p1jObject(token %safepoint_token3, i32 13, i32 13)
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ret %jObject addrspace(1)* %arg2.relocated4
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unreachable:
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ret %jObject addrspace(1)* null
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}
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; Function Attrs: nounwind
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declare %jObject addrspace(1)* @llvm.experimental.gc.relocate.p1jObject(token, i32, i32) #3
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declare token @llvm.experimental.gc.statepoint.p0f_f64f64f(i64, i32, double (double)*, i32, i32, ...)
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; In %merge %val.unrelocated, %ptr and %arg should be unrelocated.
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define void @test2(i8 addrspace(1)* %arg) gc "statepoint-example" {
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; CHECK-LABEL: Verifying gc pointers in function: test2
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; CHECK: No illegal uses found by SafepointIRVerifier in: test2
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bci_0:
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%ptr = getelementptr i8, i8 addrspace(1)* %arg, i64 4
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br 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.unrelocated = phi i8 addrspace(1)* [ %arg, %left ], [ %ptr, %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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