Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/SystemZ/loop-02.ll

@@ -1,38 +0,0 @@
-; Test BRCTH.
-
-; RUN: llc < %s -verify-machineinstrs -mtriple=s390x-linux-gnu -mcpu=z196 \
-; RUN:   -no-integrated-as | FileCheck %s
-
-; Test a loop that should be converted into dbr form and then use BRCTH.
-define void @f2(i32 *%src, i32 *%dest) {
-; CHECK-LABEL: f2:
-; CHECK: blah [[REG:%r[0-5]]]
-; CHECK: [[LABEL:\.[^:]*]]:{{.*}} %loop
-; CHECK: brcth [[REG]], [[LABEL]]
-; CHECK: br %r14
-entry:
-  ; Force upper bound into a high register in order to encourage the
-  ; register allocator to use a high register for the count variable.
-  %top = call i32 asm sideeffect "blah $0", "=h"()
-  br label %loop
-
-loop:
-  %count = phi i32 [ 0, %entry ], [ %next, %loop.next ]
-  %next = add i32 %count, 1
-  %val = load volatile i32 , i32 *%src
-  %cmp = icmp eq i32 %val, 0
-  br i1 %cmp, label %loop.next, label %loop.store
-
-loop.store:
-  %add = add i32 %val, 1
-  store volatile i32 %add, i32 *%dest
-  br label %loop.next
-
-loop.next:
-  %cont = icmp ne i32 %next, %top
-  br i1 %cont, label %loop, label %exit
-
-exit:
-  ret void
-}
-