; RUN: opt < %s -instcombine | |
define i32 @f(i32 %theNumber) { | |
entry: | |
%cmp = icmp sgt i32 %theNumber, -1 | |
call void @llvm.assume(i1 %cmp) | |
br i1 true, label %if.then, label %if.end | |
if.then: ; preds = %entry | |
%shl = shl nuw i32 %theNumber, 1 | |
br label %if.end | |
if.end: ; preds = %if.then, %entry | |
%phi = phi i32 [ %shl, %if.then ], [ undef, %entry ] | |
ret i32 %phi | |
} | |
declare void @llvm.assume(i1) |