Assertion failed '!op1->isUsedFromMemory()'

[BruceForstall]

"runtime-coreclr outerloop" R2R-CG2 test failures on arm64 in JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.cmd:

https://dev.azure.com/dnceng-public/public/_build/results?buildId=37881&view=ms.vss-test-web.build-test-results-tab&runId=755738&resultId=108102&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab

    JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.cmd [FAIL]
      
      Return code:      1
      Raw output file:      D:\h\w\B49209AE\w\A7DB0945\uploads\Reports\JIT.Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.output.txt
      Raw output:
      BEGIN EXECUTION
      Runtime_76273.dll
              1 file(s) copied.
       7:07:25.95
      Response file: D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.dll.rsp
      D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\IL-CG2\Runtime_76273.dll
      -o:D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.dll
      --targetarch:arm64
      --verify-type-and-field-layout
      --method-layout:random
      -r:D:\h\w\B49209AE\p\System.*.dll
      -r:D:\h\w\B49209AE\p\Microsoft.*.dll
      -r:D:\h\w\B49209AE\p\mscorlib.dll
      -r:D:\h\w\B49209AE\p\netstandard.dll
      -O
      " "dotnet" "D:\h\w\B49209AE\p\crossgen2\crossgen2.dll" @"D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.dll.rsp"   -r:D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\IL-CG2\*.dll"
      D:\a\_work\1\s\src\coreclr\jit\codegenarm64.cpp:4543
      Assertion failed '!op1->isUsedFromMemory()' in 'Program:M11(C0,short)' during 'Generate code' (IL size 87; hash 0xb0dcda0a; FullOpts)
      
       7:07:33.84
      Crossgen2 failed with exitcode - -2147483645
      Test Harness Exitcode is : 1

@dotnet/jit-contrib

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
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Issue Details

---

"runtime-coreclr outerloop" R2R-CG2 test failures on arm64 in JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.cmd:

https://dev.azure.com/dnceng-public/public/_build/results?buildId=37881&view=ms.vss-test-web.build-test-results-tab&runId=755738&resultId=108102&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab

    JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.cmd [FAIL]
      
      Return code:      1
      Raw output file:      D:\h\w\B49209AE\w\A7DB0945\uploads\Reports\JIT.Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.output.txt
      Raw output:
      BEGIN EXECUTION
      Runtime_76273.dll
              1 file(s) copied.
       7:07:25.95
      Response file: D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.dll.rsp
      D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\IL-CG2\Runtime_76273.dll
      -o:D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.dll
      --targetarch:arm64
      --verify-type-and-field-layout
      --method-layout:random
      -r:D:\h\w\B49209AE\p\System.*.dll
      -r:D:\h\w\B49209AE\p\Microsoft.*.dll
      -r:D:\h\w\B49209AE\p\mscorlib.dll
      -r:D:\h\w\B49209AE\p\netstandard.dll
      -O
      " "dotnet" "D:\h\w\B49209AE\p\crossgen2\crossgen2.dll" @"D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\Runtime_76273.dll.rsp"   -r:D:\h\w\B49209AE\w\A7DB0945\e\JIT\Regression\JitBlue\Runtime_76273\Runtime_76273\IL-CG2\*.dll"
      D:\a\_work\1\s\src\coreclr\jit\codegenarm64.cpp:4543
      Assertion failed '!op1->isUsedFromMemory()' in 'Program:M11(C0,short)' during 'Generate code' (IL size 87; hash 0xb0dcda0a; FullOpts)
      
       7:07:33.84
      Crossgen2 failed with exitcode - -2147483645
      Test Harness Exitcode is : 1

@dotnet/jit-contrib

Author:	BruceForstall
Assignees:	-
Labels:	arch-arm64, area-CodeGen-coreclr, blocking-outerloop
Milestone:	8.0.0

[EgorBo]

cc @tannergooding who added this test recently in #76273

[SingleAccretion]

The fix:

diff --git a/src/coreclr/jit/lower.cpp b/src/coreclr/jit/lower.cpp
index 176828d17ed..3fb6ed57317 100644
--- a/src/coreclr/jit/lower.cpp
+++ b/src/coreclr/jit/lower.cpp
@@ -2816,6 +2816,8 @@ GenTree* Lowering::OptimizeConstCompare(GenTree* cmp)
                 op2->gtType    = castToType;
 #endif
                 // If we have any contained memory ops on castOp, they must now not be contained.
+                castOp->ClearContained();
+
                 if (castOp->OperIs(GT_OR, GT_XOR, GT_AND))
                 {
                     GenTree* op1 = castOp->gtGetOp1();
@@ -2829,10 +2831,6 @@ GenTree* Lowering::OptimizeConstCompare(GenTree* cmp)
                         op2->ClearContained();
                     }
                 }
-                else
-                {
-                    castOp->ClearContained();
-                }

                 cmp->AsOp()->gtOp1 = castOp;

[tannergooding]

Was getting more details on discord, this bug is really "unrelated" to the ADDEX change and is likely just exposed by it due to the other transforms happening.

That being said, we are doing castOp->ClearContained() in IsContainableBinaryOp "too early" and we could probably do with fixing that as well.