forked from OSchip/llvm-project
73ceb50d85
to @objc_autorelease if its operand is a PHI and the PHI has an equivalent value that is used by a return instruction. For example, ARC optimizer shouldn't replace the call in the following example, as doing so breaks the AutoreleaseRV/RetainRV optimization: %v1 = bitcast i32* %v0 to i8* br label %bb3 bb2: %v3 = bitcast i32* %v2 to i8* br label %bb3 bb3: %p = phi i8* [ %v1, %bb1 ], [ %v3, %bb2 ] %retval = phi i32* [ %v0, %bb1 ], [ %v2, %bb2 ] ; equivalent to %p %v4 = tail call i8* @objc_autoreleaseReturnValue(i8* %p) ret i32* %retval Also, make sure ObjCARCContract replaces @objc_autoreleaseReturnValue's operand uses with its value so that the call gets tail-called. rdar://problem/15894705 llvm-svn: 323009 |
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| .. | ||
| allocas.ll | ||
| apelim.ll | ||
| basic.ll | ||
| cfg-hazards.ll | ||
| clang-arc-use-barrier.ll | ||
| comdat-ipo.ll | ||
| contract-end-of-use-list.ll | ||
| contract-marker.ll | ||
| contract-replace-arg-use.ll | ||
| contract-storestrong-ivar.ll | ||
| contract-storestrong.ll | ||
| contract-testcases.ll | ||
| contract.ll | ||
| empty-block.ll | ||
| ensure-that-exception-unwind-path-is-visited.ll | ||
| escape.ll | ||
| expand.ll | ||
| gvn.ll | ||
| intrinsic-use-isolated.ll | ||
| intrinsic-use.ll | ||
| invoke-2.ll | ||
| invoke.ll | ||
| move-and-form-retain-autorelease.ll | ||
| move-and-merge-autorelease.ll | ||
| nested.ll | ||
| path-overflow.ll | ||
| pointer-types.ll | ||
| post-inlining.ll | ||
| pr12270.ll | ||
| provenance.ll | ||
| retain-block-side-effects.ll | ||
| retain-not-declared.ll | ||
| rle-s2l.ll | ||
| rv.ll | ||
| split-backedge.ll | ||
| tail-call-invariant-enforcement.ll | ||
| unsafe-claim-rv.ll | ||
| weak-contract.ll | ||
| weak-copies.ll | ||
| weak-dce.ll | ||
| weak.ll | ||