[llvm] 83c55c3 - [SandboxVec][NFC] Precommit test

[Vasileios Porpodas via llvm-commits]

Author: Vasileios Porpodas
Date: 2026-03-09T17:22:21Z
New Revision: 83c55c3362a0d51c8d6986913b86b90f424be45a

URL: https://github.com/llvm/llvm-project/commit/83c55c3362a0d51c8d6986913b86b90f424be45a
DIFF: https://github.com/llvm/llvm-project/commit/83c55c3362a0d51c8d6986913b86b90f424be45a.diff

LOG: [SandboxVec][NFC] Precommit test

For a follow-up patch on handling of external uses.

Added: 
    llvm/test/Transforms/SandboxVectorizer/external_uses.ll

Modified: 
    

Removed: 
    


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diff  --git a/llvm/test/Transforms/SandboxVectorizer/external_uses.ll b/llvm/test/Transforms/SandboxVectorizer/external_uses.ll
new file mode 100644
index 0000000000000..e76441a332b91
--- /dev/null
+++ b/llvm/test/Transforms/SandboxVectorizer/external_uses.ll
@@ -0,0 +1,31 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -passes=sandbox-vectorizer -sbvec-vec-reg-bits=1024 -sbvec-allow-non-pow2 -sbvec-passes="seed-collection<tr-save,bottom-up-vec,tr-accept>" %s -S | FileCheck %s
+
+; Checks the handling of users outside the vectorized graph.
+
+define void @external_users(ptr %ptr) {
+; CHECK-LABEL: define void @external_users(
+; CHECK-SAME: ptr [[PTR:%.*]]) {
+; CHECK-NEXT:    [[PTR0:%.*]] = getelementptr float, ptr [[PTR]], i32 0
+; CHECK-NEXT:    [[LD0:%.*]] = load float, ptr [[PTR0]], align 4
+; CHECK-NEXT:    [[VECL:%.*]] = load <2 x float>, ptr [[PTR0]], align 4, !sandboxvec [[META0:![0-9]+]]
+; CHECK-NEXT:    [[SUB0:%.*]] = fsub float [[LD0]], 0.000000e+00
+; CHECK-NEXT:    [[VEC:%.*]] = fsub <2 x float> [[VECL]], zeroinitializer, !sandboxvec [[META0]]
+; CHECK-NEXT:    store <2 x float> [[VEC]], ptr [[PTR0]], align 4, !sandboxvec [[META0]]
+; CHECK-NEXT:    [[USER:%.*]] = fneg float [[SUB0]]
+; CHECK-NEXT:    ret void
+;
+  %ptr0 = getelementptr float, ptr %ptr, i32 0
+  %ptr1 = getelementptr float, ptr %ptr, i32 1
+  %ld0 = load float, ptr %ptr0
+  %ld1 = load float, ptr %ptr1
+  %sub0 = fsub float %ld0, 0.0
+  %sub1 = fsub float %ld1, 0.0
+  store float %sub0, ptr %ptr0
+  store float %sub1, ptr %ptr1
+  %user = fneg float %sub0
+  ret void
+}
+;.
+; CHECK: [[META0]] = distinct !{!"sandboxregion"}
+;.