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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -callsite-splitting -S | FileCheck %s
define i8* @caller(i8* %a, i8* %b) {
; CHECK-LABEL: @caller(
; CHECK-NEXT: Top:
; CHECK-NEXT: [[C:%.*]] = icmp eq i8* [[A:%.*]], null
; CHECK-NEXT: br i1 [[C]], label [[TAIL_PREDBB1_SPLIT:%.*]], label [[TBB:%.*]]
; CHECK: TBB:
; CHECK-NEXT: [[C2:%.*]] = icmp eq i8* [[B:%.*]], null
; CHECK-NEXT: br i1 [[C2]], label [[TAIL_PREDBB2_SPLIT:%.*]], label [[END:%.*]]
; CHECK: Tail.predBB1.split:
; CHECK-NEXT: [[TMP0:%.*]] = musttail call i8* @callee(i8* null, i8* [[B]])
; CHECK-NEXT: [[CB1:%.*]] = bitcast i8* [[TMP0]] to i8*
; CHECK-NEXT: ret i8* [[CB1]]
; CHECK: Tail.predBB2.split:
; CHECK-NEXT: [[TMP1:%.*]] = musttail call i8* @callee(i8* nonnull [[A]], i8* null)
; CHECK-NEXT: [[CB2:%.*]] = bitcast i8* [[TMP1]] to i8*
; CHECK-NEXT: ret i8* [[CB2]]
; CHECK: End:
; CHECK-NEXT: ret i8* null
;
Top:
%c = icmp eq i8* %a, null
br i1 %c, label %Tail, label %TBB
TBB:
%c2 = icmp eq i8* %b, null
br i1 %c2, label %Tail, label %End
Tail:
%ca = musttail call i8* @callee(i8* %a, i8* %b)
%cb = bitcast i8* %ca to i8*
ret i8* %cb
End:
ret i8* null
}
define i8* @callee(i8* %a, i8* %b) noinline {
; CHECK-LABEL: define i8* @callee(
; CHECK-NEXT: ret i8* [[A:%.*]]
;
ret i8* %a
}
define i8* @no_cast_caller(i8* %a, i8* %b) {
; CHECK-LABEL: @no_cast_caller(
; CHECK-NEXT: Top:
; CHECK-NEXT: [[C:%.*]] = icmp eq i8* [[A:%.*]], null
; CHECK-NEXT: br i1 [[C]], label [[TAIL_PREDBB1_SPLIT:%.*]], label [[TBB:%.*]]
; CHECK: TBB:
; CHECK-NEXT: [[C2:%.*]] = icmp eq i8* [[B:%.*]], null
; CHECK-NEXT: br i1 [[C2]], label [[TAIL_PREDBB2_SPLIT:%.*]], label [[END:%.*]]
; CHECK: Tail.predBB1.split:
; CHECK-NEXT: [[TMP0:%.*]] = musttail call i8* @callee(i8* null, i8* [[B]])
; CHECK-NEXT: ret i8* [[TMP0]]
; CHECK: Tail.predBB2.split:
; CHECK-NEXT: [[TMP1:%.*]] = musttail call i8* @callee(i8* nonnull [[A]], i8* null)
; CHECK-NEXT: ret i8* [[TMP1]]
; CHECK: End:
; CHECK-NEXT: ret i8* null
;
Top:
%c = icmp eq i8* %a, null
br i1 %c, label %Tail, label %TBB
TBB:
%c2 = icmp eq i8* %b, null
br i1 %c2, label %Tail, label %End
Tail:
%ca = musttail call i8* @callee(i8* %a, i8* %b)
ret i8* %ca
End:
ret i8* null
}
define void @void_caller(i8* %a, i8* %b) {
; CHECK-LABEL: @void_caller(
; CHECK-NEXT: Top:
; CHECK-NEXT: [[C:%.*]] = icmp eq i8* [[A:%.*]], null
; CHECK-NEXT: br i1 [[C]], label [[TAIL_PREDBB1_SPLIT:%.*]], label [[TBB:%.*]]
; CHECK: TBB:
; CHECK-NEXT: [[C2:%.*]] = icmp eq i8* [[B:%.*]], null
; CHECK-NEXT: br i1 [[C2]], label [[TAIL_PREDBB2_SPLIT:%.*]], label [[END:%.*]]
; CHECK: Tail.predBB1.split:
; CHECK-NEXT: musttail call void @void_callee(i8* null, i8* [[B]])
; CHECK-NEXT: ret void
; CHECK: Tail.predBB2.split:
; CHECK-NEXT: musttail call void @void_callee(i8* nonnull [[A]], i8* null)
; CHECK-NEXT: ret void
; CHECK: End:
; CHECK-NEXT: ret void
;
Top:
%c = icmp eq i8* %a, null
br i1 %c, label %Tail, label %TBB
TBB:
%c2 = icmp eq i8* %b, null
br i1 %c2, label %Tail, label %End
Tail:
musttail call void @void_callee(i8* %a, i8* %b)
ret void
End:
ret void
}
define void @void_callee(i8* %a, i8* %b) noinline {
; CHECK-LABEL: define void @void_callee(
; CHECK-NEXT: ret void
;
ret void
}
|
