mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-01 19:29:22 +00:00
FileCheckize. It is more properly an optimizer test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137700 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
; RUN: opt -instcombine -S -o - %s | FileCheck %s
|
|
|
|
; CHECK-NOT: getelementptr
|
|
; CHECK-NOT: ptrtoint
|
|
; CHECK: bitcast i8*
|
|
%struct.S = type { i32 (...)** }
|
|
|
|
@_ZL1p = internal constant { i64, i64 } { i64 1, i64 0 }, align 8
|
|
|
|
define void @_Z1g1S(%struct.S* %s) nounwind {
|
|
entry:
|
|
%tmp = load { i64, i64 }* @_ZL1p, align 8
|
|
%memptr.adj = extractvalue { i64, i64 } %tmp, 1
|
|
%0 = bitcast %struct.S* %s to i8*
|
|
%1 = getelementptr inbounds i8* %0, i64 %memptr.adj
|
|
%this.adjusted = bitcast i8* %1 to %struct.S*
|
|
%memptr.ptr = extractvalue { i64, i64 } %tmp, 0
|
|
%2 = and i64 %memptr.ptr, 1
|
|
%memptr.isvirtual = icmp ne i64 %2, 0
|
|
br i1 %memptr.isvirtual, label %memptr.virtual, label %memptr.nonvirtual
|
|
|
|
memptr.virtual: ; preds = %entry
|
|
%3 = bitcast %struct.S* %this.adjusted to i8**
|
|
%memptr.vtable = load i8** %3
|
|
%4 = sub i64 %memptr.ptr, 1
|
|
%5 = getelementptr i8* %memptr.vtable, i64 %4
|
|
%6 = bitcast i8* %5 to void (%struct.S*)**
|
|
%memptr.virtualfn = load void (%struct.S*)** %6
|
|
br label %memptr.end
|
|
|
|
memptr.nonvirtual: ; preds = %entry
|
|
%memptr.nonvirtualfn = inttoptr i64 %memptr.ptr to void (%struct.S*)*
|
|
br label %memptr.end
|
|
|
|
memptr.end: ; preds = %memptr.nonvirtual, %memptr.virtual
|
|
%7 = phi void (%struct.S*)* [ %memptr.virtualfn, %memptr.virtual ], [ %memptr.nonvirtualfn, %memptr.nonvirtual ]
|
|
call void %7(%struct.S* %this.adjusted)
|
|
ret void
|
|
}
|