Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/X86/hoist-common.ll

@@ -1,38 +0,0 @@
-; RUN: llc < %s -mtriple=x86_64-apple-macosx  | FileCheck %s
-; This is supposed to be testing BranchFolding's common
-; code hoisting logic, but has been erroneously passing due
-; to there being a redundant xorl in the entry block
-; and no common code to hoist.
-; However, now that MachineSink sinks the redundant xor
-; hoist-common looks at it and rejects it for hoisting,
-; which causes this test to fail.
-; Since it seems this test is broken, marking XFAIL for now
-; until someone decides to remove it or fix what it tests.
-; XFAIL: *
-
-; Common "xorb al, al" instruction in the two successor blocks should be
-; moved to the entry block above the test + je.
-
-; rdar://9145558
-
-define zeroext i1 @t(i32 %c) nounwind ssp {
-entry:
-; CHECK-LABEL: t:
-; CHECK: xorl %eax, %eax
-; CHECK: test
-; CHECK: je
-  %tobool = icmp eq i32 %c, 0
-  br i1 %tobool, label %return, label %if.then
-
-if.then:
-; CHECK: callq
-  %call = tail call zeroext i1 (...) @foo() nounwind
-  br label %return
-
-return:
-; CHECK: ret
-  %retval.0 = phi i1 [ %call, %if.then ], [ false, %entry ]
-  ret i1 %retval.0
-}
-
-declare zeroext i1 @foo(...)