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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-12-26 23:27:44 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-12-26 23:27:44 +0000 |
| commit | b17c204cc010b821659e500ceb9a2118a90b2b2e (patch) | |
| tree | d745a26dd826921854c799aa89a42d6c1a0553a9 /llvm/test/CodeGen | |
| parent | 428d87e55921f93ff498f7a6fb26760106024216 (diff) | |
| download | bcm5719-llvm-b17c204cc010b821659e500ceb9a2118a90b2b2e.tar.gz bcm5719-llvm-b17c204cc010b821659e500ceb9a2118a90b2b2e.zip | |
[DAGCombine] visitANDLike - ensure APInt is is in range for getSExtValue/getZExtValue
Reduced from oss-fuzz #4782 test case
llvm-svn: 321464
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/AArch64/combine-and-like.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/combine-and-like.ll b/llvm/test/CodeGen/AArch64/combine-and-like.ll new file mode 100644 index 00000000000..15770c2e02f --- /dev/null +++ b/llvm/test/CodeGen/AArch64/combine-and-like.ll @@ -0,0 +1,13 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=aarch64-unknown-unknown | FileCheck %s + +define i32 @f(i32 %a0) { +; CHECK-LABEL: f: +; CHECK: // %bb.0: +; CHECK-NEXT: mov w0, wzr +; CHECK-NEXT: ret + %1 = lshr i32 %a0, 2147483647 + %2 = add i32 %1, 2147483647 + %3 = and i32 %2, %1 + ret i32 %3 +} |
