Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190

external/llvm/test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll

@@ -1,54 +0,0 @@
-; RUN: opt < %s -simplifycfg -S | FileCheck %s
-
-; a, b;
-; fn1() {
-;   if (b)
-;     if (a == 0 || a == 5)
-;       return a;
-;   return 0;
-; }
-
-; Checking that we handle correctly the case when we have a switch
-; branching multiple times to the same block
-
-@b = common global i32 0, align 4
-@a = common global i32 0, align 4
-
-; Function Attrs: nounwind
-define i32 @fn1() {
-; CHECK-LABEL: @fn1(
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = load i32, i32* @b, align 4
-; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i32 [[TMP0]], 0
-; CHECK-NEXT:    br i1 [[TOBOOL]], label %return, label %if.then
-; CHECK:       if.then:
-; CHECK-NEXT:    [[TMP1:%.*]] = load i32, i32* @a, align 4
-; CHECK-NEXT:    [[SWITCH_SELECTCMP:%.*]] = icmp eq i32 [[TMP1]], 0
-; CHECK-NEXT:    [[SWITCH_SELECT:%.*]] = select i1 [[SWITCH_SELECTCMP:%.*]], i32 0, i32 0
-; CHECK-NEXT:    [[SWITCH_SELECTCMP1:%.*]] = icmp eq i32 [[TMP1]], 5
-; CHECK-NEXT:    [[SWITCH_SELECT2:%.*]] = select i1 [[SWITCH_SELECTCMP1]], i32 5, i32 [[SWITCH_SELECT]]
-; CHECK-NEXT:    br label %return
-; CHECK:       return:
-; CHECK-NEXT:    [[RETVAL_0:%.*]] = phi i32 [ [[SWITCH_SELECT2]], %if.then ], [ 0, %entry ]
-; CHECK-NEXT:    ret i32 [[RETVAL_0]]
-;
-entry:
-  %0 = load i32, i32* @b, align 4
-  %tobool = icmp eq i32 %0, 0
-  br i1 %tobool, label %if.end3, label %if.then
-
-if.then:
-  %1 = load i32, i32* @a, align 4
-  switch i32 %1, label %if.end3 [
-  i32 5, label %return
-  i32 0, label %return
-  ]
-
-if.end3:
-  br label %return
-
-return:
-  %retval.0 = phi i32 [ 0, %if.end3 ], [ %1, %if.then ], [ %1, %if.then ]
-  ret i32 %retval.0
-}
-