[Mlir-commits] [flang] [mlir] [Flang][OpenMP] Don't generate code for unreachable target regions. (PR #178937)

[Abid Qadeer]

abidh wrote:

> LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux-fast` running on `sanitizer-buildbot4` while building `flang,mlir` at step 2 "annotate".
> 
> Full details are available at: https://lab.llvm.org/buildbot/#/builders/169/builds/20019
> 
> Here is the relevant piece of the build log for the reference
> ```
> Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
> ...
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
> -- Testing: 96301 tests, 64 workers --
> Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
> FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s (59171 of 96301)
> ******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s' FAILED ********************
> Exit Code: 1
> 
> Command Output (stdout):
> --
> # RUN: at line 1
> /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
> # note: command had no output on stdout or stderr
> # RUN: at line 2
> not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp 2>&1 | /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s
> # executed command: not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
> # note: command had no output on stdout or stderr
> # error: command failed with exit status: 1
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s
> # note: command had no output on stdout or stderr
> 
> --
> 
> ********************
> Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
> FAIL: LLVM :: ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll (59281 of 96301)
> ******************** TEST 'LLVM :: ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll' FAILED ********************
> Exit Code: 1
> 
> Command Output (stdout):
> --
> # RUN: at line 3
> /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lli -jit-kind=orc-lazy -orc-lazy-debug=funcs-to-stdout -extra-module /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll    /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/Inputs/noop-main.ll | /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lli -jit-kind=orc-lazy -orc-lazy-debug=funcs-to-stdout -extra-module /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/Inputs/noop-main.ll
> # .---command stderr------------
> # | JIT session error: In graph /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll.submodule.0x47e16fc23c6e597c.ll-jitted-objectbuffer, section .text: relocation target 0x71abc2a2302c (__orc_lcl.str3.3:0x71abc2a23030 + 0xfffffffffffffffc) is out of range of Delta32 fixup at address 0x71abc2a23030 (printf_wrapper, 0x6dabc1a9e000 + 0x3)
> # | JIT session error: Failed to materialize symbols: { (main.impl, { printf_wrapper }) }
> # `-----------------------------
> # error: command failed with exit status: 1
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll
> # .---command stderr------------
> # | /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll:16:10: error: CHECK: expected string not found in input
> Step 11 (stage2/asan_ubsan check) failure: stage2/asan_ubsan check (failure)
> ...
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using lld-link: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:561: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
> llvm-lit: /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
> -- Testing: 96301 tests, 64 workers --
> Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
> FAIL: LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s (59171 of 96301)
> ******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s' FAILED ********************
> Exit Code: 1
> 
> Command Output (stdout):
> --
> # RUN: at line 1
> /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-mc -filetype=obj -triple=x86_64-windows-msvc /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s -o /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
> # note: command had no output on stdout or stderr
> # RUN: at line 2
> not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp 2>&1 | /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s
> # executed command: not /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/llvm-jitlink -noexec /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/test/ExecutionEngine/JITLink/x86-64/Output/COFF_directive_alternatename_fail.s.tmp
> # note: command had no output on stdout or stderr
> # error: command failed with exit status: 1
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/COFF_directive_alternatename_fail.s
> # note: command had no output on stdout or stderr
> 
> --
> 
> ********************
> Testing:  0.. 10.. 20.. 30.. 40.. 50.. 
> FAIL: LLVM :: ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll (59281 of 96301)
> ******************** TEST 'LLVM :: ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll' FAILED ********************
> Exit Code: 1
> 
> Command Output (stdout):
> --
> # RUN: at line 3
> /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lli -jit-kind=orc-lazy -orc-lazy-debug=funcs-to-stdout -extra-module /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll    /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/Inputs/noop-main.ll | /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lli -jit-kind=orc-lazy -orc-lazy-debug=funcs-to-stdout -extra-module /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/Inputs/noop-main.ll
> # .---command stderr------------
> # | JIT session error: In graph /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll.submodule.0x47e16fc23c6e597c.ll-jitted-objectbuffer, section .text: relocation target 0x71abc2a2302c (__orc_lcl.str3.3:0x71abc2a23030 + 0xfffffffffffffffc) is out of range of Delta32 fixup at address 0x71abc2a23030 (printf_wrapper, 0x6dabc1a9e000 + 0x3)
> # | JIT session error: Failed to materialize symbols: { (main.impl, { printf_wrapper }) }
> # `-----------------------------
> # error: command failed with exit status: 1
> # executed command: /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll
> # .---command stderr------------
> # | /home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/test/ExecutionEngine/OrcLazy/global-ctors-and-dtors.ll:16:10: error: CHECK: expected string not found in input
> ```

The error seems unrelated to PR and the build bot is now green.

https://github.com/llvm/llvm-project/pull/178937