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[LLVM][IR] Emit diagnostic for invalid pointee type for constant GEP. #165383

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Merged
merged 2 commits into from
Oct 29, 2025
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[LLVM][IR] Emit diagnostic for invalid pointee type for constant GEP. #165383

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64e41f8
[LLVM][IR] Emit diagnostic for invalid pointee type for constant GEP.
paulwalker-arm Oct 28, 2025
39ab02a
Group base element type checks.
paulwalker-arm Oct 29, 2025
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3 changes: 3 additions & 0 deletions llvm/lib/AsmParser/LLParser.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4538,6 +4538,9 @@ bool LLParser::parseValID(ValID &ID, PerFunctionState *PFS, Type *ExpectedTy) {
if (!Indices.empty() && !Ty->isSized(&Visited))
return error(ID.Loc, "base element of getelementptr must be sized");

if (!ConstantExpr::isSupportedGetElementPtr(Ty))
return error(ID.Loc, "invalid base element for constant getelementptr");

if (!GetElementPtrInst::getIndexedType(Ty, Indices))
return error(ID.Loc, "invalid getelementptr indices");

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8 changes: 8 additions & 0 deletions llvm/test/Assembler/constant-getelementptr-scalable_pointee.ll
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@@ -0,0 +1,8 @@
; RUN: not llvm-as < %s 2>&1 | FileCheck %s
; Test the case of an invalid pointee type on a constant GEP

; CHECK: invalid base element for constant getelementptr

define ptr @test_scalable_vector_gep(ptr %a) {
ret ptr getelementptr (<vscale x 1 x i8>, ptr @a, i64 1)
}