https://github.com/AmrDeveloper created https://github.com/llvm/llvm-project/pull/143262
Extend the verifier to catch index larger than the size of vector elements in VecShuffleOp Issue https://github.com/llvm/llvm-project/issues/136487 >From 5f98861a88e544ec80bbaf5fe0ffb650c2d71e67 Mon Sep 17 00:00:00 2001 From: AmrDeveloper <am...@programmer.net> Date: Sat, 7 Jun 2025 14:57:53 +0200 Subject: [PATCH] [CIR] Extend VecShuffleOp verifier to catch invalid index --- clang/lib/CIR/Dialect/IR/CIRDialect.cpp | 8 ++++++++ .../IR/invalid-vector-shuffle-wrong-index.cir | 16 ++++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 clang/test/CIR/IR/invalid-vector-shuffle-wrong-index.cir diff --git a/clang/lib/CIR/Dialect/IR/CIRDialect.cpp b/clang/lib/CIR/Dialect/IR/CIRDialect.cpp index bfd3a0a62a8e7..b0678ee737a62 100644 --- a/clang/lib/CIR/Dialect/IR/CIRDialect.cpp +++ b/clang/lib/CIR/Dialect/IR/CIRDialect.cpp @@ -1599,6 +1599,14 @@ LogicalResult cir::VecShuffleOp::verify() { << " and " << getResult().getType() << " don't match"; } + const uint64_t maxValidIndex = + getVec1().getType().getSize() + getVec2().getType().getSize() - 1; + for (const auto &idxAttr : getIndices().getAsRange<cir::IntAttr>()) { + if (idxAttr.getUInt() > maxValidIndex) + return emitOpError() << ": index for __builtin_shufflevector must be " + "less than the total number of vector elements"; + } + return success(); } diff --git a/clang/test/CIR/IR/invalid-vector-shuffle-wrong-index.cir b/clang/test/CIR/IR/invalid-vector-shuffle-wrong-index.cir new file mode 100644 index 0000000000000..375b2d3dc563e --- /dev/null +++ b/clang/test/CIR/IR/invalid-vector-shuffle-wrong-index.cir @@ -0,0 +1,16 @@ +// RUN: cir-opt %s -verify-diagnostics -split-input-file + +!s32i = !cir.int<s, 32> +!s64i = !cir.int<s, 64> + +module { + cir.func @fold_shuffle_vector_op_test() -> !cir.vector<4 x !s32i> { + %vec_1 = cir.const #cir.const_vector<[#cir.int<1> : !s32i, #cir.int<3> : !s32i, #cir.int<5> : !s32i, #cir.int<7> : !s32i]> : !cir.vector<4 x !s32i> + %vec_2 = cir.const #cir.const_vector<[#cir.int<2> : !s32i, #cir.int<4> : !s32i, #cir.int<6> : !s32i, #cir.int<8> : !s32i]> : !cir.vector<4 x !s32i> + + // expected-error @below {{index for __builtin_shufflevector must be less than the total number of vector elements}} + %new_vec = cir.vec.shuffle(%vec_1, %vec_2 : !cir.vector<4 x !s32i>) [#cir.int<9> : !s64i, #cir.int<4> : !s64i, + #cir.int<1> : !s64i, #cir.int<5> : !s64i] : !cir.vector<4 x !s32i> + cir.return %new_vec : !cir.vector<4 x !s32i> + } +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
