[clang] [compiler-rt] [UBSan] Fix incorrect alignment reported when global new returns an o… (PR #152532)

[Vitaly Buka via cfe-commits]

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@@ -1798,7 +1798,7 @@ llvm::Value *CodeGenFunction::EmitCXXNewExpr(const CXXNewExpr *E) {
   SkippedChecks.set(SanitizerKind::Null, nullCheck);
   EmitTypeCheck(CodeGenFunction::TCK_ConstructorCall,
                 E->getAllocatedTypeSourceInfo()->getTypeLoc().getBeginLoc(),
-                result, allocType, result.getAlignment(), SkippedChecks,
+                result, allocType, allocAlign, SkippedChecks,
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vitalybuka wrote:

The PR changes clang codegen, so it needs codegen test.
Ideally precomming the test with existing wrong behaviour,
and just update the test in this PR to correct behaviour.


https://github.com/llvm/llvm-project/pull/152532