a40af8589e
The existing code doesn't expect dummy values (undef, poison, null-derived constants etc) as arguments of these intrinsics. However, they can be there in unreached code. Currently we fail trying to find base for them. Handle these cases separately. Return null as base for them to be consistent with the handling in the main algorithm in findBaseDefiningValue. Differential Revision: https://reviews.llvm.org/D129561 Reviewed By: apilipenko
19 lines
1.4 KiB
LLVM
19 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=rewrite-statepoints-for-gc -S < %s | FileCheck %s
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; Make sure this doesn't crash.
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define void @test() gc "statepoint-example" personality i32* ()* @zot {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void (i32 addrspace(1)*, i64, i32 addrspace(1)*, i64, i64)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i32i64p1i32i64i64f(i64 2882400000, i32 0, void (i32 addrspace(1)*, i64, i32 addrspace(1)*, i64, i64)* elementtype(void (i32 addrspace(1)*, i64, i32 addrspace(1)*, i64, i64)) @__llvm_memcpy_element_unordered_atomic_safepoint_4, i32 5, i32 0, i32 addrspace(1)* null, i64 undef, i32 addrspace(1)* null, i64 ptrtoint (i8 addrspace(1)* getelementptr inbounds (i8, i8 addrspace(1)* null, i64 16) to i64), i64 undef, i32 0, i32 0) [ "deopt"() ]
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; CHECK-NEXT: ret void
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;
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bb:
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call void @llvm.memcpy.element.unordered.atomic.p1i32.p1i32.i64(i32 addrspace(1)* elementtype(i32) align 8 undef, i32 addrspace(1)* elementtype(i32) align 16 bitcast (i8 addrspace(1)* getelementptr inbounds (i8, i8 addrspace(1)* null, i64 16) to i32 addrspace(1)*), i64 undef, i32 4) #3 [ "deopt"() ]
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ret void
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}
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declare i32* @zot()
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declare void @llvm.memcpy.element.unordered.atomic.p1i32.p1i32.i64(i32 addrspace(1)* nocapture writeonly, i32 addrspace(1)* nocapture readonly, i64, i32 immarg)
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