Author: Nikita Popov Date: 2023-10-24T08:29:57+02:00 New Revision: a1c67ffd0a1f85f283f1ec734827c6306031bafb
URL: https://github.com/llvm/llvm-project/commit/a1c67ffd0a1f85f283f1ec734827c6306031bafb DIFF: https://github.com/llvm/llvm-project/commit/a1c67ffd0a1f85f283f1ec734827c6306031bafb.diff LOG: [ConstraintElim] Add test for #68751 (NFC) (cherry picked from commit 2b74db6c9bff757ce016d62a7086617e2b9e43b3) Added: Modified: llvm/test/Transforms/ConstraintElimination/large-constant-ints.ll Removed: ################################################################################ diff --git a/llvm/test/Transforms/ConstraintElimination/large-constant-ints.ll b/llvm/test/Transforms/ConstraintElimination/large-constant-ints.ll index f08068420406d14..91ab42ee701b41e 100644 --- a/llvm/test/Transforms/ConstraintElimination/large-constant-ints.ll +++ b/llvm/test/Transforms/ConstraintElimination/large-constant-ints.ll @@ -423,4 +423,17 @@ entry: ret i1 %res } +; FIXME: This is a miscompile. +define i1 @pr68751(i128 %arg) { +; CHECK-LABEL: @pr68751( +; CHECK-NEXT: [[SHL1:%.*]] = shl nuw nsw i128 [[ARG:%.*]], 32 +; CHECK-NEXT: [[SHL2:%.*]] = shl nuw nsw i128 [[SHL1]], 32 +; CHECK-NEXT: ret i1 true +; + %shl1 = shl nuw nsw i128 %arg, 32 + %shl2 = shl nuw nsw i128 %shl1, 32 + %cmp = icmp eq i128 %shl2, 0 + ret i1 %cmp +} + declare void @llvm.assume(i1) _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
