Vendor import of llvm release_40 branch r292951:vendor/llvm/llvm-release_40-r292951

https://llvm.org/svn/llvm-project/llvm/branches/release_40@292951

1 files changed, 42 insertions, 0 deletions

diff --git a/test/Transforms/NewGVN/pr31682.ll b/test/Transforms/NewGVN/pr31682.ll
new file mode 100644
index 000000000000..108e1e19afbd
--- /dev/null
+++ b/test/Transforms/NewGVN/pr31682.ll
@@ -0,0 +1,42 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -basicaa -newgvn -S | FileCheck %s
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+
+%struct.foo = type { i32, i32, [2 x [4 x [6 x [6 x i16]]]] }
+
+@global = external global %struct.foo*
+
+define void @bar() {
+; CHECK-LABEL: @bar(
+; CHECK-NEXT:  bb:
+; CHECK-NEXT:    [[TMP:%.*]] = load %struct.foo*, %struct.foo** @global
+; CHECK-NEXT:    br label [[BB2:%.*]]
+; CHECK:       bb2:
+; CHECK-NEXT:    [[TMP4:%.*]] = getelementptr [[STRUCT_FOO:%.*]], %struct.foo* [[TMP]], i64 0, i32 1
+; CHECK-NEXT:    br i1 undef, label [[BB2]], label [[BB7:%.*]]
+; CHECK:       bb7:
+; CHECK-NEXT:    br label [[BB10:%.*]]
+; CHECK:       bb10:
+; CHECK-NEXT:    br label [[BB10]]
+;
+bb:
+  %tmp = load %struct.foo*, %struct.foo** @global
+  %tmp1 = getelementptr %struct.foo, %struct.foo* %tmp
+  br label %bb2
+
+bb2:                                              ; preds = %bb2, %bb
+  %tmp3 = phi %struct.foo* [ undef, %bb ], [ %tmp6, %bb2 ]
+  %tmp4 = getelementptr %struct.foo, %struct.foo* %tmp3, i64 0, i32 1
+  %tmp5 = load i32, i32* %tmp4
+  %tmp6 = load %struct.foo*, %struct.foo** @global
+  br i1 undef, label %bb2, label %bb7
+
+bb7:                                              ; preds = %bb2
+  %tmp8 = phi %struct.foo* [ %tmp6, %bb2 ]
+  %tmp9 = getelementptr %struct.foo, %struct.foo* %tmp8, i64 0, i32 1
+  br label %bb10
+
+bb10:                                             ; preds = %bb10, %bb7
+  %tmp11 = load i32, i32* %tmp9
+  br label %bb10
+}