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Based on the comments in the code, the idea is that AsmPrinter is unable to produce entry value blocks of arbitrary length, such as DW_OP_entry_value [DW_OP_reg5 DW_OP_lit1 DW_OP_plus]. But the way the Verifier check is written it also disallows DW_OP_entry_value [DW_OP_reg5] DW_OP_lit1 DW_OP_plus which seems to overshoot the target. Note that this patch does not change any of the safety guards in LiveDebugValues — there is zero behavior change for clang. It just allows us to legalize more complex expressions in future patches. rdar://73907559 Differential Revision: https://reviews.llvm.org/D95990
7 lines
207 B
LLVM
7 lines
207 B
LLVM
; RUN: opt -S < %s 2>&1 | FileCheck %s
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!named = !{!0, !1}
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; CHECK-NOT: invalid expression
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!0 = !DIExpression(DW_OP_LLVM_entry_value, 1)
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!1 = !DIExpression(DW_OP_LLVM_entry_value, 1, DW_OP_lit0, DW_OP_plus)
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