[llvm] [CodeGen] Add generic INIT_UNDEF pseudo (PR #106744)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Thu Sep 5 00:58:55 PDT 2024 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ml-opt-dev-x86-64` running on `ml-opt-dev-x86-64-b1` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/137/builds/4681

<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 :: CodeGen/MLRegAlloc/dev-mode-extra-features-logging.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 7: /b/ml-opt-dev-x86-64-b1/build/bin/llc -o /dev/null -mtriple=x86_64-linux-unknown -regalloc=greedy    -regalloc-enable-advisor=development    -regalloc-training-log=/b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1    -regalloc-enable-development-features < /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/Inputs/input.ll
+ /b/ml-opt-dev-x86-64-b1/build/bin/llc -o /dev/null -mtriple=x86_64-linux-unknown -regalloc=greedy -regalloc-enable-advisor=development -regalloc-training-log=/b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1 -regalloc-enable-development-features
RUN: at line 11: "/usr/bin/python3" /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/../../../lib/Analysis/models/log_reader.py /b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1 > /b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1.readable
+ /usr/bin/python3 /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/../../../lib/Analysis/models/log_reader.py /b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1
RUN: at line 12: /b/ml-opt-dev-x86-64-b1/build/bin/FileCheck --input-file /b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1.readable /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/dev-mode-extra-features-logging.ll
+ /b/ml-opt-dev-x86-64-b1/build/bin/FileCheck --input-file /b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1.readable /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/dev-mode-extra-features-logging.ll
/b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/dev-mode-extra-features-logging.ll:29:10: error: CHECK: expected string not found in input
; CHECK: instructions: 19,{{([0-9]{4})}},1{{([0-9]{3})}},1{{([0-9]{3})}},{{.*}},0,
         ^
/b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1.readable:1:1: note: scanning from here
context: SyFgets
^
/b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1.readable:24:1: note: possible intended match here
instructions: 20,4890,1945,1965,341,4896,1945,1965,341,4896,1945,1965,2097,2097,1281,1945,1965,713,20,344,2527,1110,20,715,1815,2546,2097,2546,2527,2563,2520,4896,1945,1965,341,4896,1945,341,1965,341,2546,2544,2563,341,341,2096,1269,1945,1965,2096,1269,1945,1965,1958,1958,1965,4896,1945,1965,2527,1965,1965,2527,1965,1472,4886,20,1945,1965,2527,1965,1472,4886,20,1945,1965,4896,10,1945,1965,4896,10,1945,1965,10,20,4896,1945,1965,4896,1945,1965,713,344,1110,715,4896,1945,1965,2097,4896,1945,1965,1872,2096,1269,1945,1965,1269,1945,1965,1051,1945,1965,1269,1945,1965,2557,4896,1945,1965,4896,1945,1965,2557,1965,2527,1965,1965,1965,1281,1945,341,2527,1965,1965,1861,1269,1945,2527,1047,1945,341,1965,341,4896,1945,1965,20,713,344,1110,715,4745,2546,2097,341,4896,1945,1965,1861,341,1965,2546,713,20,1110,715,1861,4896,1945,1965,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
^

Input file: /b/ml-opt-dev-x86-64-b1/build/test/CodeGen/MLRegAlloc/Output/dev-mode-extra-features-logging.ll.tmp1.readable
Check file: /b/ml-opt-dev-x86-64-b1/llvm-project/llvm/test/CodeGen/MLRegAlloc/dev-mode-extra-features-logging.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            1: context: SyFgets 
check:29'0     X~~~~~~~~~~~~~~~~ error: no match found
            2: observation: 0 
check:29'0     ~~~~~~~~~~~~~~~
            3: mask: 0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            4: is_free: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            5: nr_urgent: 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            6: nr_broken_hints: 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,1.0 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
            .
            .
            .
           19: liverange_size: 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,1.0,0.9647942781448364,0.7939082384109497,0.7907436490058899,0.7401107549667358,0.9173259735107422,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.7436708807945251 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           20: use_def_density: 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.05123833194375038,0.017619721591472626,0.014218696393072605,0.014276761561632156,1.0,0.07275574654340744,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.4243086874485016 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           21: max_stage: 0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 
check:29'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           22: min_stage: 0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 
...

```

</details>

https://github.com/llvm/llvm-project/pull/106744

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