Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/GVN/PRE/2011-06-01-NonLocalMemdepMiscompile.ll

@@ -1,60 +0,0 @@
-; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
-; This test is checking that (a) this doesn't crash, and (b) we don't
-; conclude the value of %tmp17 is available in bb1.bb15_crit_edge.
-; rdar://9429882
-
-target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
-target triple = "x86_64-apple-macosx10.7.0"
-define i1 @rb_intern(i8 *%foo) nounwind ssp {
-; CHECK-LABEL: @rb_intern(
-
-bb:
-  %tmp = alloca i8*, align 8
-  store i8* null, i8** %tmp, align 8
-  store i8 undef, i8* null, align 536870912
-  br label %bb1
-
-bb1:
-  br i1 undef, label %bb3, label %bb15
-
-; CHECK: bb1:
-; CHECK: [[TMP:%.*]] = phi i8* [ %tmp14, %bb10 ], [ null, %bb ]
-
-; CHECK: bb1.bb15_crit_edge:
-; CHECK: %tmp17.pre = load i8, i8* [[TMP]], align 1
-
-bb3:
-  call void @isalnum()
-  br i1 undef, label %bb10, label %bb5
-
-bb5:
-  br i1 undef, label %bb10, label %bb6
-
-bb6:
-  %tmp7 = load i8*, i8** %tmp, align 8
-  %tmp8 = load i8, i8* %tmp7, align 1
-  %tmp9 = zext i8 %tmp8 to i64
-  br i1 undef, label %bb15, label %bb10
-
-bb10:
-  %tmp11 = load i8*, i8** %tmp, align 8
-  %tmp12 = load i8, i8* %tmp11, align 1
-  %tmp13 = zext i8 %tmp12 to i64
-  %tmp14 = getelementptr inbounds i8, i8* %foo, i64 undef
-  store i8* %tmp14, i8** %tmp, align 8
-  br label %bb1
-
-bb15:
-  %tmp16 = load i8*, i8** %tmp, align 8
-  %tmp17 = load i8, i8* %tmp16, align 1
-  %tmp18 = icmp eq i8 %tmp17, 0
-  br label %bb19
-
-; CHECK: bb15:
-; CHECK: %tmp17 = phi i8 [ %tmp17.pre, %bb1.bb15_crit_edge ], [ %tmp8, %bb6 ]
-
-bb19:                                             ; preds = %bb15
-  ret i1 %tmp18
-}
-
-declare void @isalnum() nounwind inlinehint ssp