<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/95996>95996</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            my project's bazel build with llvm-project and stablehlo as dependencies fails to find tblgen.bzl
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          johnmatter
      </td>
    </tr>
</table>

<pre>
    Hello

I am trying to write a somewhat simple MLIR dialect conversion tool that takes StableHLO as an input, replaces higher-level functions (e.g. dot product, convolution) with lower-level dialects (func, affine, math, tensor). 

When I try to build, bazel is unable to find tblgen.bzl for reasons that are opaque to me as a bazel newbie. Am I doing something wrong on my end, or is there an issue in the llvm-project or stablehlo bazel configs?

Here are my bazel config files:

### .bazelrc
```
build --action_env=BAZEL_CXXOPTS="-std=c++20"
```

### .bazelversion
```
6.4.0
```

### WORKSPACE
```
workspace(name = "mlir_converter")

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "llvm-project",
 urls = ["https://github.com/llvm/llvm-project/releases/download/llvmorg-18.1.7/llvm-project-18.1.7.src.tar.xz"],
 strip_prefix = "llvm-project-18.1.7.src",
)

http_archive(
 name = "stablehlo",
    urls = ["https://github.com/openxla/stablehlo/archive/refs/tags/v1.0.0.tar.gz"],
 strip_prefix = "stablehlo-1.0.0",
)
```

### BUILD
```
package(default_visibility = ["//visibility:public"])

cc_binary(
    name = "mlir_converter",
    srcs = [
        "src/main.cpp",
 "src/Passes.cpp",
        "include/Passes.h"
    ],
    deps = [
        "@llvm-project//llvm:Core",
 "@llvm-project//llvm:IRReader",
 "@llvm-project//llvm:Passes",
 "@llvm-project//llvm:Target",
        "@llvm-project//mlir:IR",
 "@llvm-project//mlir:Pass",
 "@llvm-project//mlir:Transforms",
 "@llvm-project//mlir:Dialect",
 "@llvm-project//mlir:Parser",
 "@llvm-project//mlir:Support",
 "@llvm-project//mlir:FuncDialect",
 "@llvm-project//mlir:ArithDialect",
 "@llvm-project//mlir:TensorDialect",
 "@llvm-project//mlir:AffineDialect",
 "@llvm-project//mlir:MathDialect",
 "@stablehlo//:stablehlo_ops",
    ],
    copts = [
 "-std=c++17",
        "-Iexternal/llvm-project/llvm/include",
 "-Iexternal/llvm-project/mlir/include",
 "-Iexternal/stablehlo/include",
    ],
)
```

### MODULE.bazel
```
module(name = "mlir_converter")

bazel_dep(name = "rules_cc", version = "0.0.9")
bazel_dep(name = "rules_python", version = "0.33.1")
```

### `bazel build` output
```
$ bazel clean --expunge && bazel build //:mlir_converter
INFO: Starting clean (this may take a while). Consider using --async if the clean takes more than several minutes.
Starting local Bazel server and connecting to it...
DEBUG: Rule 'stablehlo' indicated that a canonical reproducible form can be obtained by modifying arguments integrity = "sha256-x5pcfw8eyM123HNpbO3d9qV3UXynBZ7pRpBUlCBIpGI="
DEBUG: Repository stablehlo instantiated at:
 /home/ubuntu/stablehlo_lowering/WORKSPACE:11:13: in <toplevel>
Repository rule http_archive defined at:
 /home/ubuntu/.cache/bazel/_bazel_ubuntu/bddf858a9ede0b8e5917960702c4f3df/external/bazel_tools/tools/build_defs/repo/http.bzl:382:31: in <toplevel>
DEBUG: Rule 'llvm-project' indicated that a canonical reproducible form can be obtained by modifying arguments integrity = "sha256-dERqtpQ/aGORlUy9oNd66S6KYMQy7/Q3uGZuEh10jsQ="
DEBUG: Repository llvm-project instantiated at:
 /home/ubuntu/stablehlo_lowering/WORKSPACE:5:13: in <toplevel>
Repository rule http_archive defined at:
 /home/ubuntu/.cache/bazel/_bazel_ubuntu/bddf858a9ede0b8e5917960702c4f3df/external/bazel_tools/tools/build_defs/repo/http.bzl:382:31: in <toplevel>
ERROR: error loading package '@@stablehlo//': Every .bzl file must have a corresponding package, but '@@llvm-project//mlir:tblgen.bzl' does not have one. Please create a BUILD file in the same or any parent directory. Note that this BUILD file does not need to do anything except exist.
ERROR: /home/ubuntu/stablehlo_lowering/BUILD:3:10: error loading package '@@stablehlo//': Every .bzl file must have a corresponding package, but '@@llvm-project//mlir:tblgen.bzl' does not have one. Please create a BUILD file in the same or any parent directory. Note that this BUILD file does not need to do anything except exist. and referenced by '//:mlir_converter'
ERROR: Analysis of target '//:mlir_converter' failed; build aborted: Analysis failed
INFO: Elapsed time: 41.021s, Critical Path: 0.08s
INFO: 1 process: 1 internal.
ERROR: Build did NOT complete successfully
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzsWF9z2roS_zTOyw4eWyb8eeABktBmTtu0aXNPb18Y2V5jtbLkSjIJ_fR3VnbBUJImnTvn6TAM2NL--61W0u5ya8VaIc6C80VwfnnGG1dqM_uqS1Vx59CcpTrfzl6jlDqILoNo3v5eA6_Ama1Qa3Aa7o1wCBysrvC-5A6sqGqJ8PbN9S3kgkvMHGRabdBYoRU4rSU4InT8G1r46Hgq8fWbG-AWuAKh6sYF7AIM1pJnaKEU6xLNQOIGJRSNypzQykLAJhiuQ8i1g9rovMk8G6nSsiGagE3hXrgSpL7fCehM8vwkjHh4UQiF9FRxV9K_Q2W1Cdg0hD72v0tUcE3oCXraCJkTdcp_oARhoVEEhuYKoXJwqVyjCtMfEgptwCC3ZLlHzw2Crvn3xpNX6OF3khTepwJDmFdwDbkmT5N7XUlP90arNWgF1RZQef3akHJXokHvQmsbBKFoBKTcVIPa6K-0DtqA9f4upe50ZVoVYm2DZNkH-tqLMkhK-nRQCIk2SOZ94oAl7RdCT2uybnwUdV__6t0FgwH3C7hCtQmSy8X8y9Wb1cXnzzfvP30MksuAsYF1eZBcZgFbBGzBooCxk_JOK-_i7CTHKByG0bNk_X1z-9fH9_OLq5PU99p8szXPMGATxSuEILmEgLFKCrNqY92hIbvZtC9fap4HbEITw8hbu6LtYAO2DNjy56P30yrHgl4M1jpI5qVzNcWRl3lBumhkxU1Wig3-qulwdtIOAgD0ze2HRiu4o2uMtC3R-aJT5dfcm7kWrmzSMNNVwJYkovvbS1oalMgtkv25vlctbE-kzXoQT8I4HB9xdaOhNVnouAkffpBF55d7o6wzol7VBgvxcApBT0IfzLMc0_fKboMcuATgBV7RNaoHyQO27Alb7rQuTbu2jq_pbxOHURh51Otnod4JHXjO02ifju_F3fWby5OUNc--8TX5JseCN9KtNsKKVEjhtj30Ler9VJDM6yaVIvsJ4MDrWbZKheJm-2gsntg6Pddbk-1dvxulD7mDFnxZcaHCrK4PWHez77m1aH-Z3wsRKpNNjnvScnfseIr-mgBAjvXjBgXD6GhD_NwpyfxCGzw28Sn669tb5PmRR37D0yJ4CccnbtboHnHNSUZaL2_es9R01GTYS-g_Ga5soU31Iq7L9oZ_mWHGPtPHHcfHpq61eZGSZaOyP7BtboQr_4Dvk09h_kShz4b-gPEtf8rQ_lFI32S-G1np2h4H3_GOy3TtjrfcL8lCPH4khgfX-ODQKC5_va26O2x3Ahxa_hSnx_08zj76U_RHiJ97jr-9ubx7c9VmPicZKp038qV5Spua5Fgf8ZlGol1l3f0KP1P6bpYusWlf2NNi6q0rKUc_LSpJwvjAsKf9EIzafKrLyUcR6MZRIXGSmQ1_JrUSuYLBAB_qRq0RAjYK2Ah6omAXrUdOa2uhd8ubIJlTEWMcJeetwIBNXCksVHzrqxzgcF8KWoZpCBdaWZGjgcYSx2DA7VZlIAqfrrcC2tKo0gapWFBgcYOGS6iEahzasNW-0yp1xiUsvNUWzQYNcJVTyq4wc12hJlwYdoyXV4u7V2T3bSMJ9LgXnWMQKhcZd5h3hQpkXGklSIXBttISVOXQwUxzkCLo1HGhMId0C5XOReHLQ27WTYXKWRDK4drsUgjGbMnZ-WjwcF5nxf0Et29jlrx-V6c3ST79_p_k7vNWLb6M69t6cScvFtf1q-u2ODgGgLW2wmmz7RU2QlnHlRMeA3e7aoXWstQVXfJN2ijX9PflyheJQq0Dttxn_8k8juknIWWC4vPC6dpXkkHSFQc9GyiyoZ9iQo6F98tvzAgznpU00u5ktly1m2dHkOZ5MTmf8CnmGKUTPJ_G4-koGkcsGxZJXgRs2TttDmuLxwsLttwVFsk8mTD6jZ-A-kvgHB6I_2zs5Fe33139gTLrVze38m471e_y0ejj6K__vv2wpQLjQ9K8-tJclXH01X74XfwcFMr_1xA6_zeCdlCvbm9vbmkejdEGqDSk1e6qDgqpYBidyBbYmJiuNmi20DZUhESoGuug5Bs6YTNtDNpaq75A351p3F7uo8nLvldDcZxrtKB0J1wrDOG9r2khM8h9w8uXUK0ZXavF0h2n6ezdQs0NKge5MJjRwobwTjvsGl90N_TYd8oU0sbRkGuS0bZ78CHD2gE-COvCIx8-Nxjbai-ZUwzG0b_e_0Pv-0vVYIEGVdaeV4TskQSBjY9Wa6643FphQRfgfMH1NDsUXEjMg2TRpSI81cbRQE9WR3OQjVxJXlvCIiqk92EcRiy2tBoXRjh_Gr_nrqS5KIwm9pA9htroDK1tX-j4pUPhOPgW3qZc5PDu5hNkuqolOgTbZMRbNFJuj7Kvs3yW5NNkys9wFo_jyXg4Go6Ts3IW59GUMZYO0xzzlBeMx9EwnvIo5fEI4-xMzFjEhtEonrA4GSZJOC3YdIqsSIoon6RJGgwjrLiQIUVYqM36zDdBZ9Pz6XR0JnmK0s7azoXC-7ZD2nYqzszMR2XarC1FqLDO7qU44STOqi3s7zh7kB62_eX-1UFBss9FuIUca1Q5qkxgu172RIP4rDFy9uJGm8dBZ3GLczNj_wsAAP__ed9PSA">