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