Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Analysis/BasicAA/phi-and-select.ll

@@ -1,82 +0,0 @@
-; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
-
-; BasicAA should detect NoAliases in PHIs and Selects.
-
-; CHECK: Function: foo
-; CHECK:  NoAlias: double* %a, double* %b
-; CHECK: Function: bar
-; CHECK:  NoAlias: double* %a, double* %b
-; CHECK: Function: qux
-; CHECK:  NoAlias: double* %a, double* %b
-; CHECK: Function: fin
-; CHECK:  NoAlias: double* %a, double* %b
-; CHECK: ===== Alias Analysis Evaluator Report =====
-
-; Two PHIs in the same block.
-define void @foo(i1 %m, double* noalias %x, double* noalias %y) {
-entry:
-  br i1 %m, label %true, label %false
-
-true:
-  br label %exit
-
-false:
-  br label %exit
-
-exit:
-  %a = phi double* [ %x, %true ], [ %y, %false ]
-  %b = phi double* [ %x, %false ], [ %y, %true ]
-  store volatile double 0.0, double* %a
-  store volatile double 1.0, double* %b
-  ret void
-}
-
-; Two selects with the same condition.
-define void @bar(i1 %m, double* noalias %x, double* noalias %y) {
-entry:
-  %a = select i1 %m, double* %x, double* %y
-  %b = select i1 %m, double* %y, double* %x
-  store volatile double 0.000000e+00, double* %a
-  store volatile double 1.000000e+00, double* %b
-  ret void
-}
-
-; Two PHIs with disjoint sets of inputs.
-define void @qux(i1 %m, double* noalias %x, double* noalias %y,
-                 i1 %n, double* noalias %v, double* noalias %w) {
-entry:
-  br i1 %m, label %true, label %false
-
-true:
-  br label %exit
-
-false:
-  br label %exit
-
-exit:
-  %a = phi double* [ %x, %true ], [ %y, %false ]
-  br i1 %n, label %ntrue, label %nfalse
-
-ntrue:
-  br label %nexit
-
-nfalse:
-  br label %nexit
-
-nexit:
-  %b = phi double* [ %v, %ntrue ], [ %w, %nfalse ]
-  store volatile double 0.0, double* %a
-  store volatile double 1.0, double* %b
-  ret void
-}
-
-; Two selects with disjoint sets of arms.
-define void @fin(i1 %m, double* noalias %x, double* noalias %y,
-                 i1 %n, double* noalias %v, double* noalias %w) {
-entry:
-  %a = select i1 %m, double* %x, double* %y
-  %b = select i1 %n, double* %v, double* %w
-  store volatile double 0.000000e+00, double* %a
-  store volatile double 1.000000e+00, double* %b
-  ret void
-}