Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/SCCP/indirectbr.ll

@@ -1,76 +0,0 @@
-; RUN: opt -S -sccp < %s | FileCheck %s
-
-declare void @BB0_f()
-declare void @BB1_f()
-
-; Make sure we can eliminate what is in BB0 as we know that the indirectbr is going to BB1.
-;
-; CHECK-LABEL: define void @indbrtest1(
-; CHECK-NOT: call void @BB0_f()
-; CHECK: ret void
-define void @indbrtest1() {
-entry:
-  indirectbr i8* blockaddress(@indbrtest1, %BB1), [label %BB0, label %BB1]
-BB0:
-  call void @BB0_f()
-  br label %BB1
-BB1:
-  call void @BB1_f()
-  ret void
-}
-
-; Make sure we can eliminate what is in BB0 as we know that the indirectbr is going to BB1
-; by looking through the casts. The casts should be folded away when they are visited
-; before the indirectbr instruction.
-;
-; CHECK-LABEL: define void @indbrtest2(
-; CHECK-NOT: call void @BB0_f()
-; CHECK: ret void
-define void @indbrtest2() {
-entry:
-  %a = ptrtoint i8* blockaddress(@indbrtest2, %BB1) to i64
-  %b = inttoptr i64 %a to i8*
-  %c = bitcast i8* %b to i8*
-  indirectbr i8* %b, [label %BB0, label %BB1]
-BB0:
-  call void @BB0_f()
-  br label %BB1
-BB1:
-  call void @BB1_f()
-  ret void
-}
-
-; Make sure we can not eliminate BB0 as we do not know the target of the indirectbr.
-;
-; CHECK-LABEL: define void @indbrtest3(
-; CHECK: call void @BB0_f()
-; CHECK: ret void
-define void @indbrtest3(i8** %Q) {
-entry:
-  %t = load i8*, i8** %Q
-  indirectbr i8* %t, [label %BB0, label %BB1]
-BB0:
-  call void @BB0_f()
-  br label %BB1
-BB1:
-  call void @BB1_f()
-  ret void
-}
-
-; Make sure we eliminate BB1 as we pick the first successor on undef.
-;
-; CHECK-LABEL: define void @indbrtest4(
-; CHECK: call void @BB0_f()
-; CHECK: ret void
-define void @indbrtest4(i8** %Q) {
-entry:
-  indirectbr i8* undef, [label %BB0, label %BB1]
-BB0:
-  call void @BB0_f()
-  br label %BB1
-BB1:
-  call void @BB1_f()
-  ret void
-}
-
-