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; RUN: opt < %s -passes=tailcallelim -verify-dom-info -S | FileCheck %s
define i32 @f_1(i32 %x) {
; CHECK-LABEL: @f_1(
wentry:
%cond = icmp ugt i32 %x, 0
br i1 %cond, label %return, label %body
body:
; CHECK: body:
; CHECK: call i32 @f_1(i32 %y) [ "deopt"() ]
%y = add i32 %x, 1
%tmp = call i32 @f_1(i32 %y) [ "deopt"() ]
ret i32 0
return:
ret i32 1
}
define i32 @f_2(i32 %x) {
; CHECK-LABEL: @f_2
entry:
%cond = icmp ugt i32 %x, 0
br i1 %cond, label %return, label %body
body:
; CHECK: body:
; CHECK: call i32 @f_2(i32 %y) [ "unknown"() ]
%y = add i32 %x, 1
%tmp = call i32 @f_2(i32 %y) [ "unknown"() ]
ret i32 0
return:
ret i32 1
}
declare void @func()
define void @f_3(i1 %B) personality i8 42 {
; CHECK-LABEL: @f_3(
entry:
invoke void @func()
to label %exit unwind label %merge
merge:
%cs1 = catchswitch within none [label %catch] unwind to caller
catch:
; CHECK: catch:
; CHECK: call void @f_3(i1 %B) [ "funclet"(token %cp) ]
%cp = catchpad within %cs1 []
call void @f_3(i1 %B) [ "funclet"(token %cp) ]
ret void
exit:
ret void
}
; CHECK-LABEL: @test_clang_arc_attachedcall(
; CHECK: tail call ptr @getObj(
declare ptr @getObj()
define ptr @test_clang_arc_attachedcall() {
%r = call ptr @getObj() [ "clang.arc.attachedcall"(ptr @llvm.objc.retainAutoreleasedReturnValue) ]
ret ptr %r
}
declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr)
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