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1167cf8023
I'm not sure if this is a regression from D81448 + D81643, which moved at least the code cast from elsewhere, or somehow no one triggered that before. But now we can reach it with a non-instruction.. It is not straight-forward to write cost-model tests for constantexprs, `-cost-model -analyze -cost-kind=` does not appear to look at them, or maybe i'm doing it wrong. I've encountered that via a SimplifyCFG crash, so reduced (currently-crashing) test is added. There are likely other instances. For now, simply restore previous status quo of not crashing and returning TTI::TCC_Basic.
32 lines
1.3 KiB
LLVM
32 lines
1.3 KiB
LLVM
; RUN: opt -simplifycfg -S < %s | FileCheck %s
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; See that we do not crash when queriying cost model about the cost of constant expression extractelement.
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%"struct.(anonymous namespace)::aj" = type { %struct.o }
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%struct.o = type { %struct.j }
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%struct.j = type { %struct.c }
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%struct.c = type { %struct.a }
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%struct.a = type { i8 }
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%struct.e = type { %struct.a* }
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$_ZN1eC2EPK1a = comdat any
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@_ZN12_GLOBAL__N_12anE = internal global %"struct.(anonymous namespace)::aj" zeroinitializer, align 1
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declare dso_local i32 @_Zeq1eS_(%struct.a*, %struct.a*) local_unnamed_addr #2
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define internal fastcc %struct.a* @_ZNK1jIiN12_GLOBAL__N_12ajEE2aeERKi() unnamed_addr #0 align 2 {
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; CHECK-LABEL: @_ZNK1jIiN12_GLOBAL__N_12ajEE2aeERKi
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entry:
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%call = call i32 @_Zeq1eS_(%struct.a* null, %struct.a* null)
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%tobool = icmp eq i32 %call, 0
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br i1 %tobool, label %cond.false, label %cond.end
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cond.false: ; preds = %entry
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br label %cond.end
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cond.end: ; preds = %entry, %cond.false
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%retval.sroa.0.0 = phi %struct.a* [ null, %cond.false ], [ extractelement (<1 x %struct.a*> inttoptr (<1 x i64> bitcast (i64 ptrtoint (%"struct.(anonymous namespace)::aj"* @_ZN12_GLOBAL__N_12anE to i64) to <1 x i64>) to <1 x %struct.a*>), i64 0), %entry ]
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ret %struct.a* %retval.sroa.0.0
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}
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