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; RUN: opt < %s -instcombine -S | grep {ret i32 %A}
; RUN: opt < %s -die -S | not grep call.*llvm
define i32 @test(i32 %A) {
%X = or i1 false, false
br i1 %X, label %T, label %C
T: ; preds = %0
%B = add i32 %A, 1
br label %C
C: ; preds = %T, %0
%C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ]
ret i32 %C.upgrd.1
}
define i32* @test2(i32 %width) {
%tmp = call i8* @llvm.stacksave( )
%tmp14 = alloca i32, i32 %width
ret i32* %tmp14
}
declare i8* @llvm.stacksave()
declare void @llvm.lifetime.start(i64, i8*)
declare void @llvm.lifetime.end(i64, i8*)
define void @test3() {
call void @llvm.lifetime.start(i64 -1, i8* undef)
call void @llvm.lifetime.end(i64 -1, i8* undef)
ret void
}
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