[llvm-branch-commits] [llvm] release/18.x: [DSE] Remove malloc from EarliestEscapeInfo before removing. (#84157) (PR #84946)
via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Tue Mar 12 09:49:00 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-transforms
Author: None (llvmbot)
<details>
<summary>Changes</summary>
Backport eb8f379567e8d014194faefe02ce92813e237afc
Requested by: @<!-- -->nikic
---
Full diff: https://github.com/llvm/llvm-project/pull/84946.diff
2 Files Affected:
- (modified) llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp (+2-2)
- (added) llvm/test/Transforms/DeadStoreElimination/malloc-earliest-escape-info-invalidation.ll (+302)
``````````diff
diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
index 340fba4fb9c5a2..380d6583655367 100644
--- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -1907,15 +1907,15 @@ struct DSEState {
Malloc->getArgOperand(0), IRB, TLI);
if (!Calloc)
return false;
+
MemorySSAUpdater Updater(&MSSA);
auto *NewAccess =
Updater.createMemoryAccessAfter(cast<Instruction>(Calloc), nullptr,
MallocDef);
auto *NewAccessMD = cast<MemoryDef>(NewAccess);
Updater.insertDef(NewAccessMD, /*RenameUses=*/true);
- Updater.removeMemoryAccess(Malloc);
Malloc->replaceAllUsesWith(Calloc);
- Malloc->eraseFromParent();
+ deleteDeadInstruction(Malloc);
return true;
}
diff --git a/llvm/test/Transforms/DeadStoreElimination/malloc-earliest-escape-info-invalidation.ll b/llvm/test/Transforms/DeadStoreElimination/malloc-earliest-escape-info-invalidation.ll
new file mode 100644
index 00000000000000..60a010cd49ceda
--- /dev/null
+++ b/llvm/test/Transforms/DeadStoreElimination/malloc-earliest-escape-info-invalidation.ll
@@ -0,0 +1,302 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
+; RUN: opt -p dse -S %s | FileCheck %s
+
+target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
+
+define void @widget(ptr %a) {
+; CHECK-LABEL: define void @widget(
+; CHECK-SAME: ptr [[A:%.*]]) {
+; CHECK-NEXT: bb:
+; CHECK-NEXT: [[CALL1:%.*]] = tail call noalias ptr @malloc(i64 0)
+; CHECK-NEXT: store ptr [[CALL1]], ptr [[A]], align 8
+; CHECK-NEXT: [[LOAD:%.*]] = load ptr, ptr [[A]], align 8
+; CHECK-NEXT: [[LOAD2:%.*]] = load i32, ptr [[LOAD]], align 8
+; CHECK-NEXT: [[GETELEMENTPTR:%.*]] = getelementptr i8, ptr [[CALL1]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR3:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 1
+; CHECK-NEXT: [[GETELEMENTPTR4:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 8
+; CHECK-NEXT: store i16 0, ptr [[GETELEMENTPTR4]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR5:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 12
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[LOAD6:%.*]] = load i32, ptr inttoptr (i64 4 to ptr), align 4
+; CHECK-NEXT: br label [[BB48:%.*]]
+; CHECK: bb7:
+; CHECK-NEXT: br label [[BB9:%.*]]
+; CHECK: bb8:
+; CHECK-NEXT: br label [[BB53:%.*]]
+; CHECK: bb9:
+; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[CALL1]], [[BB7:%.*]] ], [ [[A]], [[BB43:%.*]] ]
+; CHECK-NEXT: [[GETELEMENTPTR10:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR11:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR12:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR13:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 1
+; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 1
+; CHECK-NEXT: br label [[BB29:%.*]]
+; CHECK: bb14:
+; CHECK-NEXT: [[GETELEMENTPTR15:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR10]], i64 8
+; CHECK-NEXT: [[LOAD16:%.*]] = load i16, ptr [[CALL1]], align 4
+; CHECK-NEXT: br i1 false, label [[BB22:%.*]], label [[BB17:%.*]]
+; CHECK: bb17:
+; CHECK-NEXT: [[GETELEMENTPTR18:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR11]], i64 8
+; CHECK-NEXT: [[LOAD19:%.*]] = load i16, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR20:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 8
+; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR21:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
+; CHECK-NEXT: br label [[BB25:%.*]]
+; CHECK: bb22:
+; CHECK-NEXT: [[GETELEMENTPTR23:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR24:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR23]], i64 12
+; CHECK-NEXT: br label [[BB25]]
+; CHECK: bb25:
+; CHECK-NEXT: [[PHI26:%.*]] = phi ptr [ [[A]], [[BB17]] ], [ [[CALL1]], [[BB22]] ]
+; CHECK-NEXT: [[PHI27:%.*]] = phi ptr [ [[CALL1]], [[BB17]] ], [ [[CALL1]], [[BB22]] ]
+; CHECK-NEXT: [[PHI28:%.*]] = phi ptr [ [[CALL1]], [[BB17]] ], [ [[CALL1]], [[BB22]] ]
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB29]]
+; CHECK: bb29:
+; CHECK-NEXT: [[PHI30:%.*]] = phi ptr [ [[CALL1]], [[BB9]] ], [ [[CALL1]], [[BB25]] ]
+; CHECK-NEXT: [[PHI31:%.*]] = phi ptr [ [[CALL1]], [[BB9]] ], [ [[CALL1]], [[BB25]] ]
+; CHECK-NEXT: [[LOAD32:%.*]] = load i8, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[LOAD33:%.*]] = load i8, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR34:%.*]] = getelementptr i8, ptr [[PHI31]], i64 12
+; CHECK-NEXT: [[GETELEMENTPTR35:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 12
+; CHECK-NEXT: br label [[BB86:%.*]]
+; CHECK: bb36:
+; CHECK-NEXT: [[GETELEMENTPTR37:%.*]] = getelementptr i8, ptr [[PHI30]], i64 12
+; CHECK-NEXT: br label [[BB38:%.*]]
+; CHECK: bb38:
+; CHECK-NEXT: [[GETELEMENTPTR39:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR34]], i64 0, i64 0
+; CHECK-NEXT: [[LOAD40:%.*]] = load i32, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR41:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR37]], i64 0, i64 0
+; CHECK-NEXT: [[LOAD42:%.*]] = load i32, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB38]]
+; CHECK: bb43:
+; CHECK-NEXT: [[GETELEMENTPTR44:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 8
+; CHECK-NEXT: [[LOAD45:%.*]] = load i16, ptr [[CALL1]], align 4
+; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR46:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 12
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR47:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 16
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB9]]
+; CHECK: bb48:
+; CHECK-NEXT: [[GETELEMENTPTR49:%.*]] = getelementptr i8, ptr [[CALL1]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR50:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 1
+; CHECK-NEXT: [[GETELEMENTPTR51:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 8
+; CHECK-NEXT: [[GETELEMENTPTR52:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 12
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB48]]
+; CHECK: bb53:
+; CHECK-NEXT: [[PHI54:%.*]] = phi ptr [ [[CALL1]], [[BB8:%.*]] ], [ [[A]], [[BB71:%.*]] ]
+; CHECK-NEXT: [[GETELEMENTPTR55:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR56:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR57:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR58:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 1
+; CHECK-NEXT: br label [[BB71]]
+; CHECK: bb59:
+; CHECK-NEXT: [[GETELEMENTPTR60:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
+; CHECK-NEXT: [[GETELEMENTPTR61:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR60]], i64 12
+; CHECK-NEXT: br label [[BB67:%.*]]
+; CHECK: bb62:
+; CHECK-NEXT: [[GETELEMENTPTR63:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR56]], i64 8
+; CHECK-NEXT: [[LOAD64:%.*]] = load i16, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR65:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 8
+; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR66:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
+; CHECK-NEXT: br label [[BB67]]
+; CHECK: bb67:
+; CHECK-NEXT: [[PHI68:%.*]] = phi ptr [ [[A]], [[BB62:%.*]] ], [ [[CALL1]], [[BB59:%.*]] ]
+; CHECK-NEXT: [[PHI69:%.*]] = phi ptr [ [[CALL1]], [[BB62]] ], [ [[CALL1]], [[BB59]] ]
+; CHECK-NEXT: [[PHI70:%.*]] = phi ptr [ [[CALL1]], [[BB62]] ], [ [[CALL1]], [[BB59]] ]
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB71]]
+; CHECK: bb71:
+; CHECK-NEXT: [[PHI72:%.*]] = phi ptr [ [[CALL1]], [[BB53]] ], [ [[CALL1]], [[BB67]] ]
+; CHECK-NEXT: [[PHI73:%.*]] = phi ptr [ [[CALL1]], [[BB53]] ], [ [[CALL1]], [[BB67]] ]
+; CHECK-NEXT: [[LOAD74:%.*]] = load i8, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[LOAD75:%.*]] = load i8, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR76:%.*]] = getelementptr i8, ptr [[PHI72]], i64 12
+; CHECK-NEXT: [[GETELEMENTPTR77:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 12
+; CHECK-NEXT: [[GETELEMENTPTR78:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR76]], i64 0, i64 0
+; CHECK-NEXT: [[LOAD79:%.*]] = load i32, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR80:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR77]], i64 0, i64 0
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[LOAD81:%.*]] = load i8, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR82:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 8
+; CHECK-NEXT: [[LOAD83:%.*]] = load i16, ptr [[CALL1]], align 4
+; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR84:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 12
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR85:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 16
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB53]]
+; CHECK: bb86:
+; CHECK-NEXT: [[GETELEMENTPTR87:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR34]], i64 0, i64 0
+; CHECK-NEXT: [[LOAD88:%.*]] = load i32, ptr [[CALL1]], align 4
+; CHECK-NEXT: [[GETELEMENTPTR89:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR35]], i64 0, i64 0
+; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
+; CHECK-NEXT: br label [[BB86]]
+;
+bb:
+ %call = tail call ptr @malloc(i64 1)
+ tail call void @llvm.memset.p0.i64(ptr %call, i8 0, i64 1, i1 false)
+ %call1 = tail call noalias ptr @malloc(i64 0)
+ store ptr %call1, ptr %a, align 8
+ %load = load ptr, ptr %a, align 8
+ %load2 = load i32, ptr %load, align 8
+ %getelementptr = getelementptr i8, ptr %call1, i64 0
+ %getelementptr3 = getelementptr i8, ptr %getelementptr, i64 1
+ store i8 0, ptr %call1, align 1
+ %getelementptr4 = getelementptr i8, ptr %getelementptr, i64 8
+ store i16 0, ptr %getelementptr4, align 4
+ %getelementptr5 = getelementptr i8, ptr %getelementptr, i64 12
+ store i32 0, ptr %call1, align 4
+ %load6 = load i32, ptr inttoptr (i64 4 to ptr), align 4
+ br label %bb48
+
+bb7: ; No predecessors!
+ br label %bb9
+
+bb8: ; No predecessors!
+ br label %bb53
+
+bb9: ; preds = %bb43, %bb7
+ %phi = phi ptr [ %call1, %bb7 ], [ %a, %bb43 ]
+ %getelementptr10 = getelementptr i8, ptr %phi, i64 0
+ %getelementptr11 = getelementptr i8, ptr %phi, i64 0
+ %getelementptr12 = getelementptr i8, ptr %phi, i64 0
+ %getelementptr13 = getelementptr i8, ptr %getelementptr12, i64 1
+ store i8 0, ptr %call1, align 1
+ br label %bb29
+
+bb14: ; No predecessors!
+ %getelementptr15 = getelementptr i8, ptr %getelementptr10, i64 8
+ %load16 = load i16, ptr %call1, align 4
+ br i1 false, label %bb22, label %bb17
+
+bb17: ; preds = %bb14
+ %getelementptr18 = getelementptr i8, ptr %getelementptr11, i64 8
+ %load19 = load i16, ptr %call1, align 4
+ %getelementptr20 = getelementptr i8, ptr %getelementptr12, i64 8
+ store i16 0, ptr %call1, align 4
+ %getelementptr21 = getelementptr i8, ptr %phi, i64 0
+ br label %bb25
+
+bb22: ; preds = %bb14
+ %getelementptr23 = getelementptr i8, ptr %phi, i64 0
+ %getelementptr24 = getelementptr i8, ptr %getelementptr23, i64 12
+ br label %bb25
+
+bb25: ; preds = %bb22, %bb17
+ %phi26 = phi ptr [ %a, %bb17 ], [ %call1, %bb22 ]
+ %phi27 = phi ptr [ %call1, %bb17 ], [ %call1, %bb22 ]
+ %phi28 = phi ptr [ %call1, %bb17 ], [ %call1, %bb22 ]
+ store i32 0, ptr %call1, align 4
+ br label %bb29
+
+bb29: ; preds = %bb25, %bb9
+ %phi30 = phi ptr [ %call1, %bb9 ], [ %call1, %bb25 ]
+ %phi31 = phi ptr [ %call1, %bb9 ], [ %call1, %bb25 ]
+ %load32 = load i8, ptr %call1, align 4
+ %load33 = load i8, ptr %call1, align 4
+ %getelementptr34 = getelementptr i8, ptr %phi31, i64 12
+ %getelementptr35 = getelementptr i8, ptr %getelementptr12, i64 12
+ br label %bb86
+
+bb36: ; No predecessors!
+ %getelementptr37 = getelementptr i8, ptr %phi30, i64 12
+ br label %bb38
+
+bb38: ; preds = %bb38, %bb36
+ %getelementptr39 = getelementptr [0 x i32], ptr %getelementptr34, i64 0, i64 0
+ %load40 = load i32, ptr %call1, align 4
+ %getelementptr41 = getelementptr [0 x i32], ptr %getelementptr37, i64 0, i64 0
+ %load42 = load i32, ptr %call1, align 4
+ br label %bb38
+
+bb43: ; No predecessors!
+ %getelementptr44 = getelementptr i8, ptr %getelementptr12, i64 8
+ %load45 = load i16, ptr %call1, align 4
+ store i16 0, ptr %call1, align 4
+ store i8 0, ptr %call1, align 4
+ %getelementptr46 = getelementptr i8, ptr %getelementptr12, i64 12
+ store i32 0, ptr %call1, align 4
+ %getelementptr47 = getelementptr i8, ptr %getelementptr12, i64 16
+ store i32 0, ptr %call1, align 4
+ br label %bb9
+
+bb48: ; preds = %bb48, %bb
+ %getelementptr49 = getelementptr i8, ptr %call1, i64 0
+ %getelementptr50 = getelementptr i8, ptr %getelementptr49, i64 1
+ store i8 0, ptr %call1, align 1
+ %getelementptr51 = getelementptr i8, ptr %getelementptr49, i64 8
+ store i16 0, ptr %call1, align 4
+ %getelementptr52 = getelementptr i8, ptr %getelementptr49, i64 12
+ store i32 0, ptr %call1, align 4
+ br label %bb48
+
+bb53: ; preds = %bb71, %bb8
+ %phi54 = phi ptr [ %call1, %bb8 ], [ %a, %bb71 ]
+ %getelementptr55 = getelementptr i8, ptr %phi54, i64 0
+ %getelementptr56 = getelementptr i8, ptr %phi54, i64 0
+ %getelementptr57 = getelementptr i8, ptr %phi54, i64 0
+ %getelementptr58 = getelementptr i8, ptr %getelementptr57, i64 1
+ br label %bb71
+
+bb59: ; No predecessors!
+ %getelementptr60 = getelementptr i8, ptr %phi54, i64 0
+ %getelementptr61 = getelementptr i8, ptr %getelementptr60, i64 12
+ br label %bb67
+
+bb62: ; No predecessors!
+ %getelementptr63 = getelementptr i8, ptr %getelementptr56, i64 8
+ %load64 = load i16, ptr %call1, align 4
+ %getelementptr65 = getelementptr i8, ptr %getelementptr57, i64 8
+ store i16 0, ptr %call1, align 4
+ %getelementptr66 = getelementptr i8, ptr %phi54, i64 0
+ br label %bb67
+
+bb67: ; preds = %bb62, %bb59
+ %phi68 = phi ptr [ %a, %bb62 ], [ %call1, %bb59 ]
+ %phi69 = phi ptr [ %call1, %bb62 ], [ %call1, %bb59 ]
+ %phi70 = phi ptr [ %call1, %bb62 ], [ %call1, %bb59 ]
+ store i32 0, ptr %call1, align 4
+ br label %bb71
+
+bb71: ; preds = %bb67, %bb53
+ %phi72 = phi ptr [ %call1, %bb53 ], [ %call1, %bb67 ]
+ %phi73 = phi ptr [ %call1, %bb53 ], [ %call1, %bb67 ]
+ %load74 = load i8, ptr %call1, align 4
+ %load75 = load i8, ptr %call1, align 4
+ %getelementptr76 = getelementptr i8, ptr %phi72, i64 12
+ %getelementptr77 = getelementptr i8, ptr %getelementptr57, i64 12
+ %getelementptr78 = getelementptr [0 x i32], ptr %getelementptr76, i64 0, i64 0
+ %load79 = load i32, ptr %call1, align 4
+ %getelementptr80 = getelementptr [0 x i32], ptr %getelementptr77, i64 0, i64 0
+ store i32 0, ptr %call1, align 4
+ %load81 = load i8, ptr %call1, align 4
+ %getelementptr82 = getelementptr i8, ptr %getelementptr57, i64 8
+ %load83 = load i16, ptr %call1, align 4
+ store i16 0, ptr %call1, align 4
+ store i8 0, ptr %call1, align 4
+ %getelementptr84 = getelementptr i8, ptr %getelementptr57, i64 12
+ store i32 0, ptr %call1, align 4
+ %getelementptr85 = getelementptr i8, ptr %getelementptr57, i64 16
+ store i32 0, ptr %call1, align 4
+ br label %bb53
+
+bb86: ; preds = %bb86, %bb29
+ %getelementptr87 = getelementptr [0 x i32], ptr %getelementptr34, i64 0, i64 0
+ %load88 = load i32, ptr %call1, align 4
+ %getelementptr89 = getelementptr [0 x i32], ptr %getelementptr35, i64 0, i64 0
+ store i32 0, ptr %call1, align 4
+ br label %bb86
+}
+
+declare ptr @malloc(i64)
+
+; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
+declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0
+
+attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }
``````````
</details>
https://github.com/llvm/llvm-project/pull/84946
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