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Assertion `DAG.isGuaranteedNotToBeUndefOrPoison(R, false) && "Can't create node that may be undef/poison!"' failed. #114670
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@llvm/issue-subscribers-backend-aarch64 Author: None (TatyanaDoubts)
To reproduce run llc with the following test
```
; ModuleID = 'reduced.ll'
source_filename = "reduced.ll"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32-ni:1-p2:32:8:8:32-ni:2"
target triple = "aarch64-none-linux-gnu"
define void @widget(i64 %arg) gc "statepoint-example" { bb13: ; preds = %bb14 bb14: ; preds = %bb14, %bb declare token @llvm.experimental.gc.statepoint.p0(i64 immarg, i32 immarg, ptr, i32 immarg, i32 immarg, ...)
llc: /root/llvm-project/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:16156: llvm::SDValue {anonymous}::DAGCombiner::visitFREEZE(llvm::SDNode*): Assertion `DAG.isGuaranteedNotToBeUndefOrPoison(R, false) && "Can't create node that may be undef/poison!"' failed.
|
Fixed by #114650. |
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To reproduce run llc with the following test
Reproducer: https://godbolt.org/z/rf7MzfP5G
Stack dump
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