| ; RUN: opt < %s -loop-reduce -S | FileCheck %s | |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" | |
| declare void @foo(i8) | |
| define void @not_addressing_mode(i8* %input, i64 %n) { | |
| ; CHECK-LABEL: @not_addressing_mode( | |
| entry: | |
| br label %loop | |
| loop: | |
| ; CHECK: loop: | |
| ; CHECK: %lsr.iv = phi i8* [ {{%[^,]+}}, %loop ], [ %input, %entry ] | |
| %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] | |
| %i.next = add i64 %i, 1 | |
| %j = mul i64 %i, -2 | |
| ; (%input - 2 * %j) is not foldable. Worth another indvar. | |
| %p = getelementptr i8, i8* %input, i64 %j | |
| %v = load i8, i8* %p | |
| ; CHECK: %v = load i8, i8* %lsr.iv | |
| call void @foo(i8 %v) | |
| %exitcond = icmp slt i64 %i.next, %n | |
| br i1 %exitcond, label %exit, label %loop | |
| exit: | |
| ret void | |
| } |