1; REQUIRES: asserts 2; RUN: opt -mtriple=x86_64-unknown-linux-gnu -loop-reduce -S < %s 3; PR33077. Check the LSR Use formula to be inserted is already canonicalized and 4; will not trigger assertion. 5 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7 8; Function Attrs: uwtable 9define void @foo() { 10cHeapLvb.exit: 11 br label %not_zero48.us 12 13not_zero48.us: ; preds = %not_zero48.us, %cHeapLvb.exit 14 %indvars.iv.us = phi i64 [ %indvars.iv.next.us.7, %not_zero48.us ], [ undef, %cHeapLvb.exit ] 15 %0 = phi i32 [ %13, %not_zero48.us ], [ undef, %cHeapLvb.exit ] 16 %indvars.iv.next.us = add nuw nsw i64 %indvars.iv.us, 1 17 %1 = add i32 %0, 2 18 %2 = getelementptr inbounds i32, i32 addrspace(1)* undef, i64 %indvars.iv.next.us 19 %3 = load i32, i32 addrspace(1)* %2, align 4 20 %4 = add i32 %0, 3 21 %5 = load i32, i32 addrspace(1)* undef, align 4 22 %6 = sub i32 undef, %5 23 %factor.us.2 = shl i32 %6, 1 24 %7 = add i32 %factor.us.2, %1 25 %8 = load i32, i32 addrspace(1)* undef, align 4 26 %9 = sub i32 %7, %8 27 %factor.us.3 = shl i32 %9, 1 28 %10 = add i32 %factor.us.3, %4 29 %11 = load i32, i32 addrspace(1)* undef, align 4 30 %12 = sub i32 %10, %11 31 %factor.us.4 = shl i32 %12, 1 32 %13 = add i32 %0, 8 33 %indvars.iv.next.us.7 = add nsw i64 %indvars.iv.us, 8 34 br label %not_zero48.us 35} 36 37