[llvm] [ctxprof] Fix initializer in PGOCtxProfLowering (PR #131269)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Thu Mar 13 21:10:51 PDT 2025 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-sie-ubuntu-fast` running on `sie-linux-worker` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/144/builds/20306

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: Transforms/PGOProfile/ctx-instrumentation.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/opt -passes=ctx-instr-gen -profile-context-root=an_entrypoint    -S < /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/FileCheck --check-prefix=INSTRUMENT /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/opt -passes=ctx-instr-gen -profile-context-root=an_entrypoint -S
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/FileCheck --check-prefix=INSTRUMENT /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll
RUN: at line 4: /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/opt -passes=ctx-instr-gen,assign-guid,ctx-instr-lower -profile-context-root=an_entrypoint    -profile-context-root=another_entrypoint_no_callees    -S < /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/FileCheck --check-prefix=LOWERING /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/FileCheck --check-prefix=LOWERING /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/build/bin/opt -passes=ctx-instr-gen,assign-guid,ctx-instr-lower -profile-context-root=an_entrypoint -profile-context-root=another_entrypoint_no_callees -S
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll:16:13: error: LOWERING: expected string not found in input
; LOWERING: @[[GLOB0:[0-9]+]] = internal global { ptr, i8 } zeroinitializer
            ^
<stdin>:7:78: note: scanning from here
 at __llvm_ctx_profile_expected_callee = external hidden thread_local global ptr
                                                                             ^
<stdin>:8:1: note: possible intended match here
 at 0 = internal global { ptr, ptr, i8 } zeroinitializer
^
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll:42:81: error: undefined variable: GLOB0
; LOWERING-NEXT: [[TMP1:%.*]] = call ptr @__llvm_ctx_profile_get_context(ptr @[[GLOB0]], ptr @foo, i64 6699318081062747564, i32 2, i32 2)
                                                                                ^
<stdin>:17:2: note: possible intended match here
 %1 = call ptr @__llvm_ctx_profile_get_context(ptr @0, ptr @foo, i64 6699318081062747564, i32 2, i32 2)
 ^
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll:184:81: error: undefined variable: GLOB1
; LOWERING-NEXT: [[TMP1:%.*]] = call ptr @__llvm_ctx_profile_get_context(ptr @[[GLOB1]], ptr @simple, i64 -3006003237940970099, i32 1, i32 0)
                                                                                ^
<stdin>:103:2: note: possible intended match here
 %1 = call ptr @__llvm_ctx_profile_get_context(ptr @1, ptr @simple, i64 -3006003237940970099, i32 1, i32 0)
 ^
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll:208:81: error: undefined variable: GLOB2
; LOWERING-NEXT: [[TMP1:%.*]] = call ptr @__llvm_ctx_profile_get_context(ptr @[[GLOB2]], ptr @no_callsites, i64 5679753335911435902, i32 2, i32 0)
                                                                                ^
<stdin>:111:2: note: possible intended match here
 %1 = call ptr @__llvm_ctx_profile_get_context(ptr @2, ptr @no_callsites, i64 5679753335911435902, i32 2, i32 0)
 ^
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll:240:81: error: undefined variable: GLOB3
; LOWERING-NEXT: [[TMP1:%.*]] = call ptr @__llvm_ctx_profile_get_context(ptr @[[GLOB3]], ptr @no_counters, i64 5458232184388660970, i32 1, i32 1)
                                                                                ^
<stdin>:130:2: note: possible intended match here
 %1 = call ptr @__llvm_ctx_profile_get_context(ptr @3, ptr @no_counters, i64 5458232184388660970, i32 1, i32 1)
 ^
/home/buildbot/buildbot-root/llvm-clang-x86_64-sie-ubuntu-fast/llvm-project/llvm/test/Transforms/PGOProfile/ctx-instrumentation.ll:268:81: error: undefined variable: GLOB4
; LOWERING-NEXT: [[TMP1:%.*]] = call ptr @__llvm_ctx_profile_get_context(ptr @[[GLOB4]], ptr @inlineasm, i64 -3771893999295659109, i32 1, i32 0)
                                                                                ^
<stdin>:147:2: note: possible intended match here
 %1 = call ptr @__llvm_ctx_profile_get_context(ptr @4, ptr @inlineasm, i64 -3771893999295659109, i32 1, i32 0)
 ^
...

```

</details>

https://github.com/llvm/llvm-project/pull/131269

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