derek.holloway
7502bf64a4
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61 lines
1.9 KiB
LLVM
61 lines
1.9 KiB
LLVM
; RUN: opt -S -O3 -enable-devirtualize-speculatively %s 2>&1 | FileCheck %s
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; Test that the devirtualized calls are inlined.
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@vt1 = constant [1 x ptr] [ptr @vf], !type !0
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@vt2 = constant [1 x ptr] [ptr @vf2], !type !1
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define i1 @vf(ptr %this) {
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ret i1 true
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}
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define i1 @vf2(ptr %this) {
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ret i1 false
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}
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; CHECK: define i1 @call
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define i1 @call(ptr %obj) #1 {
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%vtable = load ptr, ptr %obj
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%p = call i1 @llvm.public.type.test(ptr %vtable, metadata !"typeid")
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call void @llvm.assume(i1 %p)
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%fptr = load ptr, ptr %vtable
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; if.true.direct_targ: ; preds = %0
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; br label %if.end.icp
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; if.false.orig_indirect: ; preds = %0
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; %res = tail call i1 %fptr(ptr nonnull %obj)
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; br label %if.end.icp
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; if.end.icp: ; preds = %if.false.orig_indirect, %if.true.direct_targ
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; %2 = phi i1 [ %res, %if.false.orig_indirect ], [ true, %if.true.direct_targ ]
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; ret i1 %2
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%res = call i1 %fptr(ptr %obj)
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ret i1 %res
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}
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; CHECK: define i1 @call1
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define i1 @call1(ptr %obj) #1 {
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%vtable = load ptr, ptr %obj
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%p = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid1")
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call void @llvm.assume(i1 %p)
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%fptr = load ptr, ptr %vtable, align 8
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; if.true.direct_targ: ; preds = %0
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; br label %if.end.icp
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; if.false.orig_indirect: ; preds = %0
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; %res = tail call i1 %fptr(ptr nonnull %obj)
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; br label %if.end.icp
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; if.end.icp: ; preds = %if.false.orig_indirect, %if.true.direct_targ
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; %2 = phi i1 [ %res, %if.false.orig_indirect ], [ false, %if.true.direct_targ ]
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; ret i1 %2
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%res = call i1 %fptr(ptr %obj)
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ret i1 %res
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}
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declare i1 @llvm.type.test(ptr, metadata)
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declare i1 @llvm.public.type.test(ptr, metadata)
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declare void @llvm.assume(i1)
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!0 = !{i32 0, !"typeid"}
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!1 = !{i32 0, !"typeid1"}
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