[llvm] [VPlan] Construct VPlan1 once, share across buildVPlans calls. (PR #197276)

[via llvm-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 174592 tests passed
* 3379 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### LLVM
<details>
<summary>LLVM.Transforms/LoopVectorize/optsize.ll</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/opt < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll -passes='require<profile-summary>,loop-vectorize' -S | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/opt '-passes=require<profile-summary>,loop-vectorize' -S
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll:806:15: error: CHECK-NEXT: expected string not found in input
# | ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i16, ptr [[B]], i32 [[TMP0]]
# |               ^
# | <stdin>:251:67: note: scanning from here
# |  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
# |                                                                   ^
# | <stdin>:251:67: note: with "B" equal to "%B"
# |  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
# |                                                                   ^
# | <stdin>:251:67: note: with "TMP0" equal to "%index"
# |  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
# |                                                                   ^
# | <stdin>:253:2: note: possible intended match here
# |  %1 = getelementptr inbounds i16, ptr %B, i32 %0
# |  ^
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll:1074:12: error: undefined variable: LOOP22
# | ; CHECK: [[LOOP22]] = distinct !{[[LOOP22]], [[META16]], [[META17]]}
# |            ^
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll:1074:36: error: undefined variable: LOOP22
# | ; CHECK: [[LOOP22]] = distinct !{[[LOOP22]], [[META16]], [[META17]]}
# |                                    ^
# | <stdin>:346:32: note: with "META16" equal to "!16"
# | !21 = distinct !{!21, !16, !17}
# |                                ^
# | <stdin>:346:32: note: with "META17" equal to "!17"
# | !21 = distinct !{!21, !16, !17}
# |                                ^
# | <stdin>:347:3: note: possible intended match here
# | !22 = distinct !{!22, !16, !17}
# |   ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/LoopVectorize/optsize.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |               .
# |               .
# |               .
# |             246:  
# |             247: vector.ph: ; preds = %vector.scevcheck 
# |             248:  br label %vector.body 
# |             249:  
# |             250: vector.body: ; preds = %vector.body, %vector.ph 
# |             251:  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ] 
# | next:806'0                                                                         X error: no match found
# | next:806'1                                                                           with "B" equal to "%B"
# | next:806'2                                                                           with "TMP0" equal to "%index"
# |             252:  %0 = mul nsw i32 %index, %BStride 
# | next:806'0       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             253:  %1 = getelementptr inbounds i16, ptr %B, i32 %0 
# | next:806'0       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | next:806'3        ?                                                possible intended match
# |             254:  store <2 x i16> splat (i16 42), ptr %1, align 4 
# | next:806'0       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             255:  %index.next = add nuw i32 %index, 2 
# | next:806'0       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             256:  %2 = icmp eq i32 %index.next, 1024 
# | next:806'0       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             257:  br i1 %2, label %middle.block, label %vector.body, !llvm.loop !22 
# | next:806'0       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |             258:  
# | next:806'0       ~
# |               .
# |               .
# |               .
# |             341: !16 = !{!"llvm.loop.isvectorized", i32 1} 
# |             342: !17 = !{!"llvm.loop.unroll.runtime.disable"} 
# |             343: !18 = distinct !{!18, !16, !17} 
# |             344: !19 = distinct !{!19, !16, !17} 
# |             345: !20 = distinct !{!20, !16, !17} 
# |             346: !21 = distinct !{!21, !16, !17} 
# | check:1074'0                                    X error: match failed for invalid pattern
# | check:1074'1                                      undefined variable: LOOP22
# | check:1074'2                                      undefined variable: LOOP22
# | check:1074'3                                      with "META16" equal to "!16"
# | check:1074'4                                      with "META17" equal to "!17"
# |             347: !22 = distinct !{!22, !16, !17} 
# | check:1074'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | check:1074'5       ?                              possible intended match
# |             348: !23 = distinct !{!23, !16} 
# | check:1074'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/197276