Reapply "[Clang][CMake] Use IRPGO instead of FE PGO for Cmake Caches"

[boomanaiden154]

This reverts commit 18f7e03.

Reapplies #160133.

This was reverted originally because it was causing compilation crashes in ControlHeightReduction. It was reverted again because fix in CntrolHeightReduction was causing more problems. Everything should be in working order now, so relanding.

[llvmbot]

@llvm/pr-subscribers-clang

Author: Aiden Grossman (boomanaiden154)

Changes

This reverts commit 18f7e03.

Reapplies #160133.

This was reverted originally because it was causing compilation crashes in ControlHeightReduction. It was reverted again because fix in CntrolHeightReduction was causing more problems. Everything should be in working order now, so relanding.

---

Full diff: https://github.com/llvm/llvm-project/pull/160711.diff

1 Files Affected:

• (modified) clang/cmake/caches/PGO.cmake (+1-1)

diff --git a/clang/cmake/caches/PGO.cmake b/clang/cmake/caches/PGO.cmake
index 15bc755d110d1..d6471160037c1 100644
--- a/clang/cmake/caches/PGO.cmake
+++ b/clang/cmake/caches/PGO.cmake
@@ -5,7 +5,7 @@ set(LLVM_ENABLE_PROJECTS "clang;lld" CACHE STRING "")
 set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
 
 set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
-set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED ON CACHE BOOL "")
+set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED IR CACHE BOOL "")
 set(CLANG_BOOTSTRAP_TARGETS
   generate-profdata
   stage2

[llvm-ci]

LLVM Buildbot has detected a new failure on builder clang-ppc64-aix running on aix-ppc64 while building clang at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/64/builds/5910

Here is the relevant piece of the build log for the reference

Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM-Unit :: Support/./SupportTests/14/204' FAILED ********************
Script(shard):
--
GTEST_OUTPUT=json:/home/llvm/llvm-external-buildbots/workers/aix-ppc64/clang-ppc64-aix/build/unittests/Support/./SupportTests-LLVM-Unit-18416066-14-204.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=204 GTEST_SHARD_INDEX=14 /home/llvm/llvm-external-buildbots/workers/aix-ppc64/clang-ppc64-aix/build/unittests/Support/./SupportTests
--

Script:
--
/home/llvm/llvm-external-buildbots/workers/aix-ppc64/clang-ppc64-aix/build/unittests/Support/./SupportTests --gtest_filter=ProgramEnvTest.TestExecuteNoWaitTimeoutPolling
--
Note: Google Test filter = ProgramEnvTest.TestExecuteNoWaitTimeoutPolling
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from ProgramEnvTest
/home/llvm/llvm-external-buildbots/workers/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/unittests/Support/ProgramTest.cpp:414: Failure
Expected: (LoopCount) > (1u), actual: 1 vs 1
LoopCount should be >1


/home/llvm/llvm-external-buildbots/workers/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/unittests/Support/ProgramTest.cpp:414
Expected: (LoopCount) > (1u), actual: 1 vs 1
LoopCount should be >1



********************