72 lines
2.3 KiB
LLVM
72 lines
2.3 KiB
LLVM
; RUN: opt -disable-output -licm -enable-new-pm=0 -print-memoryssa -enable-mssa-loop-dependency=true < %s 2>&1 | FileCheck %s
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; RUN: opt -disable-output -aa-pipeline=basic-aa -passes='loop-mssa(licm),print<memoryssa>' < %s 2>&1 | FileCheck %s
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; CHECK-LABEL: @f()
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; CHECK: lbl1:
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; CHECK-NEXT: ; [[NO4:.*]] = MemoryPhi({entry,liveOnEntry},{lbl1.backedge,[[NO9:.*]]})
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; CHECK-NEXT: ; [[NO2:.*]] = MemoryDef([[NO4]])
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; CHECK-NEXT: call void @g()
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; CHECK-NEXT: br i1 undef, label %for.end, label %if.else
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; CHECK: for.end:
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; CHECK-NEXT: br i1 undef, label %lbl3, label %lbl2
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; CHECK: lbl2:
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; CHECK-NEXT: ; [[NO8:.*]] = MemoryPhi({lbl3,[[NO7:.*]]},{for.end,[[NO2]]})
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; CHECK-NEXT: br label %lbl3
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; CHECK: lbl3:
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; CHECK-NEXT: [[NO7]] = MemoryPhi({lbl2,[[NO8]]},{for.end,2})
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; CHECK: cleanup:
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; CHECK-NEXT: MemoryUse([[NO7]])
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; CHECK-NEXT: %cleanup.dest = load i32, i32* undef, align 1
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; CHECK: lbl1.backedge:
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; CHECK-NEXT: [[NO9]] = MemoryPhi({cleanup,[[NO7]]},{if.else,2})
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; CHECK-NEXT: br label %lbl1
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; CHECK: cleanup.cont:
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; CHECK-NEXT: ; [[NO6:.*]] = MemoryDef([[NO7]])
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; CHECK-NEXT: store i16 undef, i16* %e, align 1
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; CHECK-NEXT: 3 = MemoryDef([[NO6]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* null)
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define void @f() {
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entry:
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%e = alloca i16, align 1
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br label %lbl1
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lbl1: ; preds = %if.else, %cleanup, %entry
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store i16 undef, i16* %e, align 1
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call void @g()
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br i1 undef, label %for.end, label %if.else
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for.end: ; preds = %lbl1
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br i1 undef, label %lbl3, label %lbl2
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lbl2: ; preds = %lbl3, %for.end
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br label %lbl3
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lbl3: ; preds = %lbl2, %for.end
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br i1 undef, label %lbl2, label %cleanup
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cleanup: ; preds = %lbl3
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%cleanup.dest = load i32, i32* undef, align 1
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%switch = icmp ult i32 %cleanup.dest, 1
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br i1 %switch, label %cleanup.cont, label %lbl1
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cleanup.cont: ; preds = %cleanup
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call void @llvm.lifetime.end.p0i8(i64 1, i8* null)
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ret void
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if.else: ; preds = %lbl1
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br label %lbl1
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}
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declare void @g()
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; Function Attrs: argmemonly nounwind willreturn
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declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
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